Impact craters on Pluto and Charon indicate a deficit of small Kuiper belt objects-Reference-Cited by-同舟云学术

Impact craters on Pluto and Charon indicate a deficit of small Kuiper belt objects

Published:2019-03 Issue:6430 Volume:363 Page:955-959
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Singer K. N.¹^ORCID,McKinnon W. B.²^ORCID,Gladman B.³,Greenstreet S.⁴^ORCID,Bierhaus E. B.⁵^ORCID,Stern S. A.¹^ORCID,Parker A. H.¹,Robbins S. J.¹^ORCID,Schenk P. M.⁶^ORCID,Grundy W. M.⁷^ORCID,Bray V. J.⁸^ORCID,Beyer R. A.⁹¹⁰^ORCID,Binzel R. P.¹¹^ORCID,Weaver H. A.¹²^ORCID,Young L. A.¹^ORCID,Spencer J. R.¹^ORCID,Kavelaars J. J.¹³,Moore J. M.¹⁰^ORCID,Zangari A. M.¹,Olkin C. B.¹^ORCID,Lauer T. R.¹⁴^ORCID,Lisse C. M.¹²^ORCID,Ennico K.¹⁰^ORCID,Buie Marc W.,Buratti Bonnie J.,Cheng Andrew F.,Cook Jason C.,Cruikshank Dale P.,Dalle Cristina M.,Earle Alissa M.,Horanyi Mihaly,Howett Carly J. A.,Jennings Don E.,Linscott Ivan R.,Lunsford Allen W.,Protopapa Silvia,Reitsema Harold J.,Reuter Dennis C.,Showalter Mark R.,Tyler G. Leonard,Weigle G. E., , ,

Affiliation:

1. Southwest Research Institute, Boulder, CO 80302, USA.

2. Department of Earth and Planetary Sciences and McDonnell Center for the Space Sciences, Washington University, St. Louis, MO 63130, USA.

3. Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1 Canada.

4. Las Cumbres Observatory, Goleta, CA 93117, USA, and the University of California, Santa Barbara, CA 93106, USA.

5. Lockheed Martin Space Systems Company, Denver, CO 80127, USA.

6. Lunar and Planetary Institute, Houston, TX 77058, USA.

7. Lowell Observatory, Flagstaff, AZ 86001, USA.

8. University of Arizona, Tucson, AZ 85721, USA.

9. Carl Sagan Center at the Search for Extraterrestrial Intelligence (SETI) Institute, Mountain View, CA 94043, USA.

10. National Aeronautics and Space Administration (NASA) Ames Research Center, Space Science Division, Moffett Field, CA 94035, USA.

11. Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

12. Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA.

13. National Research Council of Canada, Victoria, BC, Canada.

14. National Optical Astronomy Observatory, Tucson, AZ 26732, USA.

Abstract

Impact craters on Pluto and Charon Collisions between Solar System bodies produce impact craters on large objects at a rate that depends on the population of impacting small bodies. Singer et al. examined impact craters on Pluto and its moon Charon. Some regions have had their impact craters erased by recent geological processes, but others appear to record 4 billion years of impacts. Because Pluto and Charon are located in the Kuiper belt, the distribution of crater sizes reflects the size distribution of impacting Kuiper belt objects (KBOs). The authors found fewer small KBOs than predicted by models of collision equilibrium, implying that some of the KBO population has been preserved since the formation of the Solar System. Science , this issue p. 955

Funder

National Aeronautics and Space Administration

Natural Sciences and Engineering Research Council of Canada

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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