Ensemble properties of comets in the Sloan Digital Sky Survey
| Autor: | Željko Ivezić, Lynne Jones, Thomas R. Quinn, Michael Solontoi, Robert H. Lupton, Andrew C. Becker, Steve Kent, Andrew A. West, James E. Gunn, Gillian R. Knapp, Mark Claire, Mario Juric, Donald P. Schneider |
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| Rok vydání: | 2012 |
| Předmět: |
Brightness
010504 meteorology & atmospheric sciences media_common.quotation_subject Comet FOS: Physical sciences Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics 01 natural sciences Power law Photometry (optics) 0103 physical sciences Surface brightness 010303 astronomy & astrophysics Astrophysics::Galaxy Astrophysics 0105 earth and related environmental sciences media_common Earth and Planetary Astrophysics (astro-ph.EP) Physics Astronomy Astronomy and Astrophysics Formalism (philosophy of mathematics) 13. Climate action Space and Planetary Science Sky Physics::Space Physics High Energy Physics::Experiment Astrophysics::Earth and Planetary Astrophysics Astrophysics - Earth and Planetary Astrophysics |
| Zdroj: | Icarus. 218:571-584 |
| ISSN: | 0019-1035 |
| DOI: | 10.1016/j.icarus.2011.10.008 |
| Popis: | We present the ensemble properties of 31 comets (27 resolved and 4 unresolved) observed by the Sloan Digital Sky Survey (SDSS). This sample of comets represents about 1 comet per 10 million SDSS photometric objects. Five-band (u,g,r,i,z) photometry is used to determine the comets' colors, sizes, surface brightness profiles, and rates of dust production in terms of the Af�� formalism. We find that the cumulative luminosity function for the Jupiter Family Comets in our sample is well fit by a power law of the form N(< H) \propto 10(0.49\pm0.05)H for H < 18, with evidence of a much shallower fit N(< H) \propto 10(0.19\pm0.03)H for the faint (14.5 < H < 18) comets. The resolved comets show an extremely narrow distribution of colors (0.57 \pm 0.05 in g - r for example), which are statistically indistinguishable from that of the Jupiter Trojans. Further, there is no evidence of correlation between color and physical, dynamical, or observational parameters for the observed comets. 19 pages, 8 tables, 11 figures, to appear in Icarus |
| Databáze: | OpenAIRE |
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