PLEASE NOTE:
*
CCNet, 61/2000 - 24 May 2000
----------------------------
"Our results document a very abrupt
increase in eolian dust and
Mesopotamian aridity, accelerator mass
spectrometer radiocarbon
dated to 4025 +/- 125 calendar yr B.P.,
which persisted for
similar to 300 yr. [... ] the observed
increase in mineral dust
was derived from Mesopotamian source
areas. Geochemical
correlation of volcanic ash shards
between the archeological site
and marine sediment record establishes a
direct temporal link
between Mesopotamian aridification and
social collapse,
implicating a sudden shift to more arid
conditions as a key factor
contributing to the collapse of the
Akkadian empire."
--
H.M. Cullen et al., Climate change and the collapse of
the Akkadian empire: Evidence from the deep sea
(1) NEW EVIDENCE FOR 4000 BP NATURAL DISASTER & CIVILISATION
COLLAPSE
H.M. Cullen et al., COLUMBIA UNIVERSITY
(2) COMET IMPACT ON IO IN 1983?
Larry Klaes <lklaes@bbn.com>
(3) WHILE NEO RESEARCHERS ARE COMPLACENT, U.S. ASTRONOMERS
ARE LOBBYING FOR REAL MONEY
Space.com, 19 May 2000
(4) ASTRONOMERS WANT BIGGER TELESCOPE - BUT NOT FOR SPACEGUARD
BBC News Online, 22 May 2000
(5) RESTRICTED FUNDING FOR COMPREHENSIVE EARTH PROTECTION
Bob Kobres <bkobres@uga.edu>
(6) MARTIAN METEORITE FOUND IN OMAN
BBC News Online, 22 May 2000
(7) ASTEROID IMPACT TSUNAMI: A PROBABILISTIC HAZARD ASSESSMENT
S.N. Ward and E. Asphaug
(8) VIRTUAL IMPACTORS: SEARCH AND DESTROY
A. Milani et al., Dipartimento di Matematica,
Università di Pisa,
(9) STILL DOUBTING THE K/T MASS EXTINCTION EVENT
G.C. Cadee, NETHERLANDS INST SEA RES
(10) DEATH OF THE DINOSAURS
John Mosley <jmosley@earthlink.net>
(11) COMET 1997 K2 WOULD BE DISCOVERED TODAY
Jeffrey Larsen <jlarsen@pirlmail.lpl.Arizona.EDU>
(12) GLOBAL URANIUM SUPPLY
Joel Gunn <jdgunn@mindspring.com>
(13) CALL FOR ASTEROIDS III CHAPTERS
William Bottke <bottke@ceres.tn.cornell.edu>
=========
(1) NEW EVIDENCE FOR 4000 BP NATURAL DISASTER & CIVILISATION
COLLAPSE
H.M. Cullen*), P.B. deMenocal, S. Hemming, G. Hemming, F.H.
Brown,
T. Guilderson, F. Sirocko: Climate change and the collapse of the
Akkadian empire: Evidence from the deep sea
*) COLUMBIA UNIVERSITY,LAMONT DOHERTY EARTH
OBSERV,PALISADES,NY,10964
GEOLOGY, 2000, Vol.28, No.4, pp.379-382
The Akkadian empire ruled Mesopotamia from the headwaters of the
Tigris-Euphrates Rivers to the Persian Gulf during the late third
millennium B.C. Archeological evidence has shown that this highly
developed civilization collapsed abruptly near 4170 +/- 150
calendar yr
B.P., perhaps related to a shift to more arid conditions.
Detailed
paleoclimate records to test this assertion from Mesopotamia are
rare,
but changes in regional aridity are preserved in adjacent ocean
basins.
We document Holocene changes in regional aridity using
mineralogic and
geochemical analyses of a marine sediment core from the Gulf of
Oman,
which is directly downwind of Mesopotamian dust source areas and
archeological sites. Our results document a very abrupt increase
in
eolian dust and Mesopotamian aridity, accelerator mass
spectrometer
radiocarbon dated to 4025 +/- 125 calendar yr B.P., which
persisted for
similar to 300 yr. Radiogenic (Nd and Sr) isotope analyses
confirm that
the observed increase in mineral dust was derived from
Mesopotamian
source areas. Geochemical correlation of volcanic ash shards
between
the archeological site and marine sediment record establishes a
direct
temporal link between Mesopotamian aridification and social
collapse,
implicating a sudden shift to more arid conditions as a key
factor
contributing to the collapse of the Akkadian empire. Copyright
2000,
Institute for Scientific Information Inc.
====================
(2) COMET IMPACT ON IO IN 1983?
From Larry Klaes <lklaes@bbn.com>
[as posted on jupiter_list@egroups.com]
"Has Jupiter Flashed before? Well, not Jupiter itself but
its strange
Galilean satellite Io. On July 26, 1983, Io suddenly brightened
by
about 50% for just under 2 minutes. The "flash"
represented an emission
energy of 10^28 ergs, which is equivalent to the impact on the
satllite
of an ice mass 5-kilometers in diameter moving at 60 km/sec. This
collision interpretation is encouraged by the 1994 impacts of
cometary
fragments on Jupiter proper. In the case of Io, however, there is
another possibility: electrical arcing. Io's volcanoes are
prodigious
spewers of metallic sodium [No they're not], and T. Gold has
speculated
that colossal arcs may occur in this conducting environment as Io
cuts
through Jupiter's magnetic field."
O'Brien, Roger; "Has Jupiter Flashed Before?" British
Astronomical
Association, Journal, 104:6, 1994.
Quote from a webpage. URL:
http://science-frontiers.com/sf100/sf100a02.htm
Jason Perry
volcanopele@hotmail.com
----------
From Larry Klaes <lklaes@bbn.com>
Thank you, Jason. Any speculations on where the impact crater
might be?
Or does Io change its surface fast enough between 1983 and when
Galileo
starting imaging the moon in 1996 to erase such a crater?
Larry
-----------
From Jason Perry <volcanopele@hotmail.com>
Depends on where it landed. If it landed in the plains area or
near a
volcano, it probably has been erased. If it landed on a mountain,
it
probably has survived. An its possible that an impact
crater on Io
would soon look very much like a volcano. Io is probably so
active that
a crater would do that. Then it would be hard to tell.
Impact craters have been observed on Io so some do last for a
bit,
maybe a few thousand years. The largest I have found is on
a plateau
west of Zal Patera. Its around 8 km across. 5 others have
also been
seen. None have been found that would be large enough to
account for
a 5 km wide comet.
Jason Perry
volcanopele@hotmail.com
====================
(3) WHILE NEO RESEARCHERS ARE COMPLACENT, U.S. ASTRONOMERS
ARE LOBBYING FOR REAL MONEY
From Space.com, 19 May 2000
http://space.com/scienceastronomy/astronomy/new_observatories_000519.html
Astronomers call for new Space Observatories
A team of leading U.S. astronomers wants NASA to spend $3.7
billion
during this decade to build and launch a series of new
space-based
observatories. The astronomers say they need the instruments in
order
to pin down a host of scientific mysteries, from the origin of
the
universe to the formation of black holes to the possible
existence of
Earth-like planets.
Years in the making, the report released today by the National
Research
Council (NRC) lays out an ambitious plan for astronomy and
astrophysics
through 2010. Team leader Christopher McKee, a University of
California
at Berkeley astronomer, and Princeton University astronomer
Joseph
Taylor, envision a new generation of both space- and ground-based
telescopes, as well as a National Virtual Observatory, which will
collect all astronomical data.
The report lists the missions from top to lowest priority, and
excludes
some efforts on the wish lists of astronomers. "This is not
just a
typical 'please send money' report," says William
Wulf, president of
the National Academy of Engineering and NRC vice chairman.
"This
represents tough choices" made within the astronomy
community.
The study urges NASA to consider a host of mission sizes, not
just the
very large and the very small, which dominate the agency's
planning.
While the team proposes four major space-based initiatives --
that is,
missions costing more than about $500 million -- it also
recommends
five moderate initiatives, each with an average price tag of
about $300
million. One panel member says that mid-sized missions today
don't win
the support that the larger ones do, while smaller spacecraft are
built
and flown under special programs like Explorer or Discovery.
Despite the study's call for NASA to provide more opportunities
for
variety in mission size, NASA officials greeted the report
enthusiastically; saying it largely matches the agency's plans
for the
next decade. The top NRC priority, for example, is the Next
Generation
Space Telescope, a $1 billion observatory with a mirror nearly
four
times the size of the current Hubble Space Telescope. That future
mission already is high on NASA's to-do list. The effort will
include
substantial contributions from the European Space Agency and the
Canadian Space Agency, and is slated for launch around 2007.
FULL STORY at
http://space.com/scienceastronomy/astronomy/new_observatories_000519.html
=====================
(4) ASTRONOMERS WANT BIGGER TELESCOPE - BUT NOT FOR SPACEGUARD
From the BBC News Online, 22 May 2000
http://news.bbc.co.uk/hi/english/sci/tech/newsid_758000/758883.stm
Astronomers want bigger telescopes
By BBC News Online science editor Dr David Whitehouse
If you are an American astronomer then the next decade may offer
unprecedented opportunities to study the Universe.
If you are an American taxpayer then you may wonder why hundreds
of
millions of dollars are being spent on several large telescopes
doing
essentially the same thing.
According to a new report by the National Science Foundation
(Nsf)
looking at what astronomers require in the next decade or so, the
highest priority is a so-called Next Generation Space Telescope
(NGST).
This would be far more advanced than the Hubble telescope
currently in
orbit. The report says it should "dramatically increase our
understanding of how the first stars and galaxies formed billions
of
years ago and how stars and planets form today.
FULL STORY at
http://news.bbc.co.uk/hi/english/sci/tech/newsid_758000/758883.stm
====================
(5) RESTRICTED FUNDING FOR COMPREHENSIVE EARTH PROTECTION
From Bob Kobres <bkobres@uga.edu>
.. added the URLs below to R.E. Gold’s Shield Report
following the New Scientist
blurb.
http://www.niac.usra.edu/files/studies/abstract/75Gold.html
http://www.niac.usra.edu/files/studies/final_report/html/75Gold/75Gold.html
Later.
bobk
--------
SHIELD: A COMPREHENSIVE EARTH PROTECTION SYSTEM
http://www.niac.usra.edu/files/studies/abstract/75Gold.html
Principal Investigator: Robert E. Gold
Organization or Academic Affiliation: The John Hopkins University
Applied Physics Laboratory
Abstract
Although the probability of a small body impact with Earth is
low,
the greatest natural threat to the long-term survivability of
civilization is an asteroid or comet impact. To date, the
existence and orbits of a only few hundred near-Earth asteroids
and comets are known, many more are yet to be discovered. In
addition, limited resources are dedicated to expanding this
catalog. To protect the Earth against a collision, the asteroid
must be discovered and then deflected, or fragmented into pieces
that will miss the Earth or vaporize in Earth's atmosphere. The
problem involves both detection and elimination. Many studies
have
examined particular portions of the problem of detecting and
protecting the Earth from approaching comets and asteroids.
However, there has been very little examination of the complete
Earth-protection problem. This proposal will study the
architecture of SHIELD, a comprehensive Earth-protection system,
with special emphasis on a non-nuclear method of small-body
deflection. This proposal will show that a non-nuclear system for
smaller threats can almost be built today and with projected
advancements in technology a complete system for the important
range of impactor sizes will be practical in a 40 year interval.
====================
(6) MARTIAN METEORITE FOUND IN OMAN
From The BBC News Online, 22 May 2000
http://news.bbc.co.uk/hi/english/sci/tech/newsid_759000/759267.stm
By BBC News Online science editor Dr David Whitehouse
A brownish grey stone weighing 1,056 grams (2.3 lbs) is thought
to be
only the 15th known meteorite to originate from Mars.
The discovery, made on 24 January this year in the Dhofar region
of
Oman, is extremely rare. Of the estimated 20,000 known
meteorites, only
a handful are confirmed as having come from the Red Planet or the
Moon.
Most come from the thousands of tiny, irregularly shaped worlds
that
form the asteroid belt, which orbits the Sun between Mars and
Jupiter.
It is not known who picked up this new rock, provisionally named
Dhofar
019, which it seems is made from Martian basalt. Whoever it was
is
staying anonymous - although it could be one of the professional
meteorite hunters that regularly scour the deserts for rocks from
space.
Analysis of the rock's mineralogy by scientists at the Vernadsky
Institute in Moscow and the University of Tennessee suggest that
it
shows no signs of having been melted during its passage through
the
Earth's atmosphere.
This is possibly because it is a fragment of a once larger
meteorite..
Scientists say that it has been subject to considerable
weathering on
Earth but it has similarities to the Martian meteorite designated
ALH84001, inside which some researchers believe is evidence of
past
life on Mars.
Copyright 2000, BBC
==================
(7) ASTEROID IMPACT TSUNAMI: A PROBABILISTIC HAZARD ASSESSMENT
S.N. Ward and E. Asphaug: Asteroid impact tsunami: A
probabilistic
hazard assessment. ICARUS, Volume 145, Number 1, May 2000, 64f.
We investigate the generation, propagation, and probabilistic
hazard of
tsunami spawned by oceanic asteroid impacts. The process first
links
the depth and diameter of parabolic impact cavities to asteroid
density, radius, and impact velocity by means of elementary
energy
arguments and crater scaling rules. Then, linear tsunami theory
illustrates how these transient cavities evolve into vertical sea
surface waveforms at distant positions and times. By measuring
maximum
wave amplitude at many distances for a variety of impactor sizes,
we
derive simplified attenuation relations that account both for
geometrical spreading and frequency dispersion of tsunami on
uniform
depth oceans. In general, the tsunami wavelengths contributing to
the
peak amplitude coincide closely with the diameter of the
transient
impact cavity. For the moderate size impactors of interest here
(those smaller than a few hundred meters radius), cavity widths
are less
than or comparable to mid-ocean depths. As a consequence,
dispersion
increases the 1/□r long-wave decay rate to nearly 1/r for
tsunami
from these sources. In the final step, linear shoaling theory
applied
at the frequency associated with peak tsunami amplitude corrects
for
amplifications as the waves near land. By coupling this tsunami
amplitude/distance information with the statistics of asteroid
falls,
the probabilistic hazard of impact tsunami is assessed in much
the same
way as probabilistic seismic hazard, by integrating contributions
over
all admissible impactor sizes and impact locations. In
particular,
tsunami hazard, expressed as the Poissonian probability of being
inundated by waves from 2 to 50 m in height in a 1000-year
interval, is
computed at both generic (generalized geography) and specific
(real
geography) sites. For example, a typical generic site with 180°
of
ocean exposure and a reach of 6000 km, admits a 1-in-14 chance of
an
impact tsunami exceeding 2-m in height in 1000 years. The
likelihood
drops to 1-in-35 for a 5-m wave, and to 1-in-345 for a 25-m wave.
Specific sites of Tokyo and New York have 1-in-24 and 1-in-47
chances,
respectively, of suffering an impact tsunami greater than 5 m in
the next
millennium. (c) 2000: Academic Press
====================
(8) VIRTUAL IMPACTORS: SEARCH AND DESTROY
A. Milani, S.R. Chesley, A. Boattini, Valsecchi, B.
Giovanni: Virtual
Impactors: Search and Destroy. Icarus, Volume 145, Issue Icarus,
pp.
12-24, May 2000.
*) Dipartimento di Matematica, Università di Pisa, Pisa, Italy
If for an asteroid which has been observed only over a short arc
and
then lost there are orbits compatible with the observations
resulting
in collisions, recovery would be desirable to decide if it will
actually impact. If recovery is essentially impractical, as is
the case
for many small asteroids in the 100- to 500-m-diameter range, the
next best thing is to make sure that the lost asteroid is not on
a
collision course. We propose a method for achieving this
guarantee,
with an observational effort far smaller than the one required
for
recovery. The procedure involves the computation of an orbit that
is
compatible with the available observations and, by hypothesis,
results
in an impact at some later encounter; this we call a virtual
impactor
(VI). The collision at some future time is a strong constraint;
thus
the VI has a well determined orbit. We show that it is possible
to
compute for each given time of observation the skyprint of the
VI, that
is the set of astrometric positions compatible with an impact (or
a
near impact). The skyprint needs to be scanned by powerful enough
telescopes to perform a negative observation; once this has been
done
for the skyprints of all VIs, collisions can be excluded even
without recovery. We propose to apply this procedure to the case
of the
lost asteroid 1998 OX4, for which we have found orbital solutions
with
impacts in the years 2014, 2038, 2044, and 2046. Suitable
observing
windows are found when the VI would be close to the Earth in 2001
and
in 2003, and the corresponding skyprints are small enough to be
covered
with very few frames. This procedure might become more and more
necessary in the future, as the number of discoveries of small
potentially hazardous asteroids increases; we discuss the general
principles and the validation procedures that should apply to
such
a VI removal campaign. (c) 2000: Academic Press
====================
(9) STILL DOUBTING THE K/T MASS EXTINCTION EVENT
G.C. Cadee: Mass mortalities and mass extinction
LETHAIA, 1999, Vol.32, No.4, pp.318-320
NETHERLANDS INST SEA RES,POB 59,NL-1790 AB DEN BURG,NETHERLANDS
Are mass mortality and mass extinction related? In an interesting
paper, Zinsmeister (1998) describes a 1-3 m thick sediment layer
rich
in fish bones just above the K-T boundary on Seymour Island.
According
to Zinsmeister this might 'represent the first documented, direct
evidence of a kill event associated with the bolide impact 65
m.y.
ago'. In this note I will discuss why I think it may not.
Copyright 2000, Institute for Scientific Information Inc.
==================
(10) DEATH OF THE DINOSAURS
From Ron Baalke <baalke@jpl.nasa.gov>
Forwarded from John Mosley (jmosley@earthlink.net)
Press Release
"Death of the Dinosaurs"
New Planetarium Show at Griffith Observatory
Premieres Wednesday, May 24, 2000
One of greatest scientific mysteries of all time - what happened
to the
dinosaurs - was solved when it was realized that the earth was
clobbered by a giant asteroid or comet 65 million years ago. The
impact
and the destruction caused by worldwide tidal waves, grass and
forest
fires, and clouds that blocked sunlight for years, caused the
extinction of many of the worlds species - including the
dinosaurs.
The disappearance of previously successful species paved the way
for
the rise of mammals - and eventually us - in the age that
followed.
This impact demonstrated in a dramatic way how the earth (and our
human destiny) is connected to the rest of the solar system.
"Death of the Dinosaurs," the new live multi-media
planetarium show at
Griffith Observatory, uses the Zeiss star projector to show how
comets
and asteroids can strike our planet and what happens when one
does.
We've recently come to appreciate that such impacts are not
things that
used to happen long ago, and that our earth remains vulnerable.
The
show provides an updated assessment of the risk from asteroid and
comet
impacts today, and it concludes with the latest thinking on
answers to
the question, "What do we do to defend our planet to prevent
a similar
catastrophe from happening to us?"
"Death of the Dinosaurs" is presented Tuesday through
Sunday at 3:00
p.m. and 7:30 p.m., with additional shows at 4:30 p.m. on
Saturdays
and Sundays, beginning tomorrow, Wednesday, May 24. There are no
planetarium shows on Mondays.
For additional information on Griffith Observatory programs and
activities, please call (323) 664-1191 for a recorded message or
visit the Observatory's web site at
http://www.GriffithObservatory.org.
=============================
* LETTERS TO THE MODERATOR *
=============================
(11) COMET 1997 K2 WOULD BE DISCOVERED TODAY
From Jeffrey Larsen <jlarsen@pirlmail.lpl.Arizona.EDU>
From CCNet, 22 May 2000:
> In a commentary accompanying the article, astronomer Michael
A'Hearn of
> the University of Maryland said that the failed detection of
the comet
> three years ago may be a sign that current search efforts
are skewed
> towards asteroids 1 km (0.62 mi.) or larger in diameter,
despite the
> fact there are likely many more smaller bodies that could
wreak
> major damage if they struck the Earth.
Hi Benny,
I feel the need to add a comment. This was a failure in detection
from
three years ago, and not from the "current search
efforts". Three
years ago, out of the relatively major (all sky coverage
surveys), none
were in full operation yet (Spacewatch was, but it doesn't cover
the
sky each lunation). In other words, most likely a 1-km object
would
have escaped detection as well. I think the question more
appropriately
should be would such an object, if it were in the sky this year,
escape
the current system?
Working for a search group, I am the last person who would argue
against additional resources. Obviously, we need to start
pushing
faintward to complete the inventory to smaller and smaller
objects.
There is a balance, however, in what can be accomplished and what
can
be accomplished with reasonable (or available) resources.
Three years ago I started working for Spacewatch. Since
then, I have
seen nothing but a steady increase in capability of the search
programs. I have not the growth in search capability mentioned as
a
variable in any comments regarding the theory of surveying.
Regards,
Jeffrey Larsen
---------------------------------------------------------------------------
Dr. Jeffrey A.
Larsen
jlarsen@lpl.arizona.edu
Spacewatch
Project
Telephone: (520) 621-2824
Lunar and Planetary
Laboratory
FAX: (520) 621-1940
University of
Arizona
Tucson, Arizona
85721
---------------------------------------------------------------------------
================
(12) GLOBAL URANIUM SUPPLY
From Joel Gunn <jdgunn@mindspring.com>
Re: NOT ENOUGH URANIUM FOR NUCLEAR ENERGY?
Jens Kieffer-Olsen <dstdba@post4.tele.dk>
wrote:
> Forty years ago it was argued that known uranium reserves
were too
> few to supply the world with energy for much more than 50
years.
> Since then new yellowcake deposits may have been discovered,
but also
> breeder reactors have fallen from grace such that the yield
per
> kilogram is reduced. Did the article provide an estimate of
the
> period over which they envisage feeding 4000 reactors with
> fissionable uranium?
Someone on the combined NOVA-Frontline report of global warming
about
two weeks ago reported that there was enough accessible uranium
to
supply the world with electricity for about 40 years. The
summation of
the program seemed to be that the world culture is headed for an
energy
crisis regardless of any disturbances caused by global warming. I
believe the same person who reported the uranium supply said that
resolution of the energy problem was being handled in a
"timid" manner.
An effort of similar scale to that required to put people on the
moon
is required.
Joel Gunn
===================
(13) CALL FOR ASTEROIDS III CHAPTERS
From William Bottke <bottke@ceres.tn.cornell.edu>
---------------------------------------------------------------------------
ASTEROIDS III
CALL FOR CHAPTERS AND PARTICIPANTS
(Response must
by received by June 23, 2000)
---------------------------------------------------------------------------
Dear Colleagues,
Since the publication of the Space Science Series Book
"Asteroids II", our
understanding of small bodies in the solar system has made
tremendous
progress. In the last ten years, spacecraft have performed
their first
reconnaissance of several main belt asteroids, while
delay-Doppler radar
techniques and HST imaging have given us new tools to examine
near-Earth
asteroids and large main belt bodies via remote sensing.
Hardware
advances in CCD technology now allow us detect and observe
asteroids more
readily than before, such that our library of asteroid spectra
has grown
exponentially. In addition, theoretical advances and new
computational
resources now allow us to numerically model complex systems much
more
accurately than before, giving us a much clearer understanding of
processes such as asteroid collisions and orbital dynamics.
For these reasons, the time has come to begin work on
"Asteroids III",
a new book in the Space Science Series. The goal of this
book is to
establish the current state of the field (at the bicentennial of
the first
asteroid's discovery) and to serve as a foundation for
advancement over
the next decade. A Scientific Organizing Committee (SOC) of
more than 12
international members is forming and making plans for the
organization and
content of this book. The editors of Asteroids III will be
William Bottke,
Alberto Cellino, Paolo Paolicchi, and Richard Binzel.
The purpose of this message, sent on behalf of the Editors and
the SOC, is
to invite you to volunteer to participate in the Asteroids III
project.
More specifically, this message is a solicitation for ideas for
chapter
topics and a solicitation for volunteers for chapter authors. If
you would
like to recommend chapters for the book, or would like to
volunteer to
write a particular chapter, we would like to hear from you no
later than
June 23, 2000. To be most helpful, and to be seriously
considered for
selection as a chapter author, we need to receive detailed
information as
outlined at the bottom of this e-mail.
---------------------------------------------------------------------------
INFORMATION FOR
ASTEROIDS III CHAPTERS/AUTHORS
These sections explain the guidelines and conditions for filling
out the
Asteroids III form below.
CHAPTER CATEGORIES
Broad categories under, which chapter topics fall, include the
following:
o Asteroid cosmochemisty
o Asteroid spectroscopy/observations
o Asteroid families
o Asteroid search programs
o Asteroid collisions and impact processes
o Origins of asteroids
o Asteroid geology
o Asteroid sizes/albedos/taxonomy/radiometry
o Other
Chapters should address issues which were not discussed in
Asteroids II or
those which are in need of a SIGNIFICANT update. They
should be of
general interest to the asteroid community -- please avoid narrow
or
highly technical matters which would be better addressed in
contributed
papers to scientific journals. (Negotiations are underway
for a special
issue of Icarus.) We also hope, as much as possible, to
select and
encourage emerging new voices in the field.
RESPONSIBILITY OF FIRST AUTHORS
In proposing to serve as a first author of a chapter, you agree
to take
full responsibility for the content and on-time delivery of the
chapter.
All editorial processing and typesetting (formerly the work
handled by
Mildred Matthews) will be performed on a contract basis with an
independent agency that will have fixed deadlines and fixed
costs. There
is simply zero flexibility in the process for late chapters. If
you cannot
or will not deliver your chapter on time, your participation is
not
desired.
In proposing to serve as a first author of a chapter, you also
agree to be
solely responsible for page charges for your chapter. You
should expect
these charges to be in the vicinity of $75 per published
page. These
charges will support the typesetting and editorial production of
the book
and help reduce the sales price of the book. The goal is to
keep the
sales price within easy reach of graduate students.
Additional information on the preparation of chapters will be
distributed
to chapter authors at the time of selection.
CO-AUTHORS
The SOC and editors of Asteroids III intend to give the first
author of
each chapter some latitude in choosing co-authors. We
invite you to
arrange your own collaborations, though the SOC and Editors may
contact
you with specific suggestions before making final
selections. Therefore,
we request that your chapter proposal include a selection of
potential
co-authors. Their job will be to help you write a more complete
description of your topic. For this reason, it is requested
that you
define the role that each co-author would have on your
team. The number
of added co-authors per chapter should not exceed two or three
unless a
specific need for additional co-authors can be clearly
demonstrated.
-----------------------------------------------------------------------
SELECTION OF CHAPTER TOPICS
The editors of Asteroids III have put together a scientific
organizing
committee (SOC) whose job is to help the editors identify
important topics
and potential lead authors across the asteroid community.
The editors and
the SOC intend to review the "at large" contributions
derived from this
solicitation before making final chapter author/topic
selections. While
the SOC will have considerable input into the decision- making
process,
the final call will be made by the editors.
-----------------------------------------------------------------------
ASTEROIDS III MEETING
We hope to assign chapter authors over the next few months so
they can
begin preparing for the "Asteroids 2001: From Piazzi to the
3rd
Millennium" meeting to be held 11-16 June 2001 in Palermo,
Sicily. This
meeting will serve as the Asteroids III conference.
For meeting information contact: CERES2001@OAPA.ASTROPA.UNIPA.IT
-----------------------------------------------------------------------
TIMESCALE FOR COMPLETION AND PUBLICATION OF ASTEROIDS III
First drafts of all chapters will be due at start of the
Asteroids 2001
conference on June 11, 2001. Final versions will be due on
August 1, 2001.
All refereeing, final revisions, typesetting, and proofing will
be completed
for a 2002 publication of Asteroids III.
Your participation would be an extremely valuable service to the
asteroid
and planetary science community. The deadline for
responding to this
solicitation is June 23, 2000.
It is our intention to make Asteroids III as useful as Asteroids
(1979)
and Asteroids II (1989), such that it becomes the science
community's
primary reference manual for the next decade.
Best regards,
William Bottke
Editor, Asteroids III
Center for Radiophysics & Space Research
306 Space Sciences
Cornell University
Ithaca, NY 14853-6801
Tel: (607) 255-3934
Fax: (607) 255-9002
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- - - - - -
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ASTEROID III PARTICIPATION FORM
Return this form by June 23, 2000 to: ast3@ceres.tn.cornell.edu
-----------------------------------------------------------------------
A. AUTHOR CONTACT INFORMATION:
NAME:
ADDRESS:
E-MAIL:
PHONE:
FAX:
B. THE BROAD CATEGORY UNDER WHICH YOUR PROPOSED CHAPTER
FALLS
(Mark one with an "X")
--- Asteroid cosmochemisty
--- Asteroid spectroscopy/observations
--- Asteroid families
--- Asteroid search programs
--- Asteroid collisions and impact processes
--- Origins of asteroids
--- Asteroid geology
--- Asteroid sizes/albedos/taxonomy/radiometry
--- Other
C. PROPOSED TITLE OF CHAPTER
D. DESCRIPTION OF PROPOSED CHAPTER
Please give a short description (100-200 words) of your proposed
contribution. Please include the following:
(1) The topics you would address in your chapter.
(2) Their importance to the asteroid community.
E. DESCRIPTION OF YOUR PROPOSED ROLE
(Mark one with an "X")
I propose to serve as a first author for the
described
--- chapter, and agree to the strict deadlines outlined above
and agree to be solely responsible for page
charges.
List of proposed co-authors:
(You must clearly define and specify a
role for each,
subject to the limitation of
2-3 persons, as described above.)
I propose to serve as a chapter
co-author. (In the space below,
--- indicate who is the proposed first author, if known.)
I am willing to serve as a reviewer of chapter
manuscripts
--- in the following areas:
-----------------------------------------------------------------------
Return this form by June 23, 2000 to: ast3@ceres.tn.cornell.edu
-----------------------------------------------------------------------
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