Ammonium salts are a reservoir of nitrogen on a cometary nucleus and possibly on some asteroids-Reference-Cited by-同舟云学术

Ammonium salts are a reservoir of nitrogen on a cometary nucleus and possibly on some asteroids

Published:2020-03-13 Issue:6483 Volume:367 Page:
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Poch Olivier¹^ORCID,Istiqomah Istiqomah¹,Quirico Eric¹^ORCID,Beck Pierre¹²,Schmitt Bernard¹^ORCID,Theulé Patrice³^ORCID,Faure Alexandre¹^ORCID,Hily-Blant Pierre¹^ORCID,Bonal Lydie¹,Raponi Andrea⁴^ORCID,Ciarniello Mauro⁴^ORCID,Rousseau Batiste¹^ORCID,Potin Sandra¹^ORCID,Brissaud Olivier¹,Flandinet Laurène¹^ORCID,Filacchione Gianrico⁴^ORCID,Pommerol Antoine⁵^ORCID,Thomas Nicolas⁵^ORCID,Kappel David⁶⁷^ORCID,Mennella Vito⁸^ORCID,Moroz Lyuba⁷^ORCID,Vinogradoff Vassilissa⁹^ORCID,Arnold Gabriele⁷,Erard Stéphane¹⁰^ORCID,Bockelée-Morvan Dominique¹⁰,Leyrat Cédric¹⁰^ORCID,Capaccioni Fabrizio⁴^ORCID,De Sanctis Maria Cristina⁴^ORCID,Longobardo Andrea⁴¹¹^ORCID,Mancarella Francesca¹²^ORCID,Palomba Ernesto⁴^ORCID,Tosi Federico⁴^ORCID

Affiliation:

1. Université Grenoble Alpes, Centre National de la Recherche Scientifique (CNRS), Institut de Planétologie et d’Astrophysique de Grenoble (IPAG), 38000 Grenoble, France.

2. Institut Universitaire de France (IUF), Paris, France.

3. Aix-Marseille Université, CNRS, Centre National d’Etudes Spatiales (CNES), Laboratoire d’Astrophysique de Marseille (LAM), Marseille, France.

4. Istituto di Astrofisica e Planetologia Spaziali (IAPS), Istituto Nazionale di Astrofisica (INAF), 00133 Rome, Italy.

5. Physikalisches Institut, Sidlerstrasse 5, University of Bern, CH-3012 Bern, Switzerland.

6. Institute of Physics and Astronomy, University of Potsdam, 14476 Potsdam, Germany.

7. Institute for Planetary Research, German Aerospace Center (DLR), 12489 Berlin, Germany.

8. Istituto Nazionale di Astrofisica (INAF)–Osservatorio Astronomico di Capodimonte, Napoli, Italy.

9. CNRS, Aix-Marseille Université, Laboratoire Physique des Interactions Ioniques et Moléculaires (PIIM), Unité Mixte de Recherche (UMR) CNRS 7345, 13397 Marseille, France.

10. Laboratoire d’Etudes Spatiales et d’Instrumentation en Astrophysique (LESIA), Observatoire de Paris, Université Paris Sciences et Lettres (PSL), CNRS, Sorbonne Université, Université de Paris, 92195 Meudon, France.

11. Dipartimento di Scienze e Tecnologie (DIST), Università Parthenope, 80143 Napoli, Italy.

12. Dipartimento di Matematica e Fisica “E. De Giorgi,” Università del Salento, Lecce, Italy.

Abstract

Ammonium salts on comet 67P The distribution of carbon and nitrogen in the Solar System is thought to reflect the stability of carbon- and nitrogen-bearing molecules when exposed to the heat of the forming Sun. Comets have a low nitrogen-to-carbon ratio, which is contrary to expectations because they originate in the outer Solar System where nitrogen species should be common. Poch et al. used laboratory experiments to simulate cometary surfaces and compared the resulting spectra with comet 67P/Churyumov-Gerasimenko. They assigned a previously unidentified infrared absorption band to nitrogen-containing ammonium salts. The salts could contain enough nitrogen to bring the comet's nitrogen-to-carbon ratio in line with the Sun's. Science , this issue p. eaaw7462

Funder

European Research Council

Deutsche Forschungsgemeinschaft

Agence Nationale de la Recherche

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference88 articles.

1. A. S. Rivkin et al . Astronomical observations of volatiles on asteroids in Asteroids IV P. Michel F. E. DeMeo W. F. Bottke Eds. (Univ. Arizona Press 2015) pp. 65–87.

2. Virtis: An Imaging Spectrometer for the Rosetta Mission

3. The organic-rich surface of comet 67P/Churyumov-Gerasimenko as seen by VIRTIS/Rosetta