A quasi-Hilda comet (QHC) is a Jupiter-family comet that interacts strongly with Jupiter and undergoes extended temporary capture by it. These comets are associated with the Hilda asteroid zone in the 3:2 inner mean-motion resonance with Jupiter. Typically, asteroids in this zone have a semimajor axis between 3.70 and 4.20 AU, eccentricities below 0.30, and inclinations of no more than 20°.[1] Comets can be temporarily perturbed into this group and then perturbed back out again.[2] Eight percent of the comets that leave the 3:2 resonance end up impacting Jupiter.[1]
Known quasi-Hilda comets
editThese numbered comets belong to the group of quasi-Hilda comet:[1]
| Full Name |
Aphelion (Q) |
Eccentricity |
Inclination |
Perihelion date |
|---|---|---|---|---|
| 36P/Whipple | 5.27 | 0.261 | 9.92 | 2011-12-29 |
| 74P/Smirnova–Chernykh | 4.78 | 0.147 | 6.65 | 2009-07-26 |
| 82P/Gehrels | 4.65 | 0.122 | 1.12 | 2010-01-12 |
| 111P/Helin–Roman–Crockett | 4.61 | 0.140 | 4.23 | 2013-01-30 |
| 117P/Helin–Roman–Alu | 5.13 | 0.253 | 8.69 | 2014-03-28 |
| 129P/Shoemaker–Levy | 4.85 | 0.170 | 3.29 | 2014-02-07 |
| 135P/Shoemaker–Levy | 4.93 | 0.289 | 6.05 | 2014-11-01 |
| 147P/Kushida–Muramatsu | 4.85 | 0.276 | 2.36 | 2008-09-22 |
| 215P/NEAT (2002 O8) | 4.83 | 0.200 | 12.7 | 2010-06-06 |
| 228P/LINEAR (2001 YX127) | 4.89 | 0.176 | 7.91 | 2011-08-26 |
| 231P/LINEAR-NEAT (2003 CP7) | 5.01 | 0.246 | 12.3 | 2011-05-16 |
| 246P/NEAT (2004 F3) | 5.17 | 0.286 | 15.9 | 2013-01-28 |
| 212P/NEAT (2000 YN30)[3] | 6.20 | 0.579 | 22.4 | 2008-12-03 |
| 362P/(457175) 2008 GO98[4] | 5.08 | 0.279 | 15.6 | 2024-07-20 |
| 282P/(323137) 2003 BM80[5] | 5.04 | 0.188 | 5.81 | 2021-10-24 |
39P/Oterma was a quasi-Hilda before a close approach to Jupiter in 1963.[1] 77P/Longmore falls outside of the bulk distribution because of its large eccentricity and inclination.[1] Comet Shoemaker–Levy 9 impacted with Jupiter in 1994.
Not numbered comets claimed to be quasi-Hilda object with comet activity are P/2010 H2 (Vales),[6] 2009 DQ118,[7] 2018 CZ18[8] and 2004 CV50.[9]
References
edit- ^ a b c d e Toth, I. (March 2006). "The quasi-Hilda subgroup of ecliptic comets - an update". Astronomy and Astrophysics. 448 (3): 1191–1196. Bibcode:2006A&A...448.1191T. doi:10.1051/0004-6361:20053492.
- ^ Spratt, Christopher E. (December 1989). "The Hilda group of minor planets". Journal of the Royal Astronomical Society of Canada. 83: 393–404. Bibcode:1989JRASC..83..393S.
- ^ Cheng, Y. -C.; Ip, W. -H. (2012-05-01). "Physical and dynamical properties of a quasi-Hilda comet, 212P/2000YN30". 1667: 6462.
{{cite journal}}: Cite journal requires|journal=(help) - ^ García-Migani, E.; Gil-Hutton, R. (2018-10-01). "The activity and dynamical evolution of quasi-hilda asteroid (457175) 2008 GO98". Planetary and Space Science. 160: 12–18. doi:10.1016/j.pss.2018.03.011. ISSN 0032-0633.
- ^ Chandler, Colin Orion; Oldroyd, William J.; Trujillo, Chadwick A. (2022-08-01). "Migratory Outbursting Quasi-Hilda Object 282P/(323137) 2003 BM80".
{{cite journal}}: Cite journal requires|journal=(help) - ^ Jewitt, David; Kim, Yoonyoung (2020-12-01). "Outbursting Quasi-Hilda Asteroid P/2010 H2 (Vales)". The Planetary Science Journal. 1: 77. arXiv:2010.05012. doi:10.3847/PSJ/abbef6. ISSN 2632-3338.
- ^ Oldroyd, William J.; Chandler, Colin Orion; Trujillo, Chadwick A.; Burris, William A.; Kueny, Jay K.; Hsieh, Henry H.; Farrell, Kennedy A.; DeSpain, Jarod A.; Mazzucato, Michele T.; Bosch, Milton K. D.; Shaw-Diaz, Tiffany; Gonano, Virgilio (2023-03-01). "Comet-like Activity Discovered on Quasi-Hilda Asteroid 2009 DQ118". Research Notes of the American Astronomical Society. 7: 42. doi:10.3847/2515-5172/acc17c. ISSN 2515-5172.
- ^ Trujillo, Chadwick A.; Chandler, Colin Orion; Oldroyd, William J.; Burris, William A.; Hsieh, Henry H.; Kueny, Jay K.; Mazzucato, Michele T.; Bosch, Milton K. D.; Shaw-Diaz, Tiffany; Gonano, Virgilio (2023-05-26). "Cometary Activity on Quasi-Hilda Object 2018 CZ16". Research Notes of the AAS. 7 (5): 106. doi:10.3847/2515-5172/acd7f0. ISSN 2515-5172.
- ^ Chandler, Colin Orion; Oldroyd, William J.; Trujillo, Chadwick A.; Burris, William A.; Hsieh, Henry H.; Kueny, Jay K.; Farrell, Kennedy A.; DeSpain, Jarod A.; Sedaghat, Nima; Magbanua, Mark Jesus Mendoza; Sheppard, Scott S.; Mazzucato, Michele T.; Bosch, Milton K. D.; Shaw-Diaz, Tiffany; Gonano, Virgilio (November 2023). "New Active Quasi-Hilda Asteroid 2004 CV50: A Citizen Science Discovery". Research Notes of the AAS. 7 (11): 237. doi:10.3847/2515-5172/ad09c1. ISSN 2515-5172.