Detection of Soft X-rays and a Sensitive Search for Noble Gases in Comet Hale-Bopp (C/1995 O1)-Reference-Cited by-同舟云学术

Detection of Soft X-rays and a Sensitive Search for Noble Gases in Comet Hale-Bopp (C/1995 O1)

Published:1997-09-05 Issue:5331 Volume:277 Page:1488-1491
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Krasnopolsky Vladimir A.¹²³⁴⁵,Mumma Michael J.¹²³⁴⁵,Abbott Mark¹²³⁴⁵,Flynn Brian C.¹²³⁴⁵,Meech Karen J.¹²³⁴⁵,Yeomans Donald K.¹²³⁴⁵,Feldman Paul D.¹²³⁴⁵,Cosmovici Cristiano B.¹²³⁴⁵

Affiliation:

1. V. A. Krasnopolsky, Catholic University of America, Washington, DC 20064, USA, and NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.

2. M. J. Mumma, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.

3. M. Abbott and B. C. Flynn, Center for Extreme Ultraviolet Astrophysics, Berkeley, CA 94720, USA.

4. K. J. Meech, Institute for Astronomy, Honolulu, HI 96822, USA.

5. D. K. Yeomans, Jet Propulsion Laboratory, Pasadena, CA 91109, USA.

Abstract

An image of comet Hale-Bopp (C/1995 O1) in soft x-rays reveals a central emission offset from the nucleus, as well as an extended emission feature that does not correlate with the dust jets seen at optical wavelengths. Neon was found to be depleted in the cometary ice by more than a factor of 25 relative to solar abundance, which suggests that ices in Hale-Bopp formed at (or later experienced) temperatures higher than 25 kelvin. A helium line emission at a wavelength of 584 angstroms was detected and may be attributable to charge transfer of solar wind α particles in the cometary coma. Ionized oxygen and another helium line contribute to an emission observed at 538 angstroms.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference75 articles.

1. S. Bowyer and R. F. Malina in Extreme Ultraviolet Astronomy R. F. Malina and S. Bowyer Eds. (Pergamon New York 1991) pp. 397–408. EUVE has imaging instruments that cover the entire spectral range of 70 to 760 Å. However only imaging at 70 to 180 Å with the Deep Survey camera (DS) can be used simultaneously with the spectrometers.

2. Stern S. A., Green J. C., Cash W., Cook T. A., Icarus 95, 157 (1992);

3. ; P. D. Feldman et al. Astrophys. J. 379 L37 (1991).

4. Krasnopolsky V. A., Bowyer S., Chakrabarti S., Gladstone G. R., McDonald J. S., Icarus 109, 337 (1994);

5. Gladstone G. R., McDonald J. S., Boyd W. T., Bowyer S., Geophys. Res. Lett. 21, 461 (1994);

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