Comet-like Activity Discovered on Quasi-Hilda Asteroid 2009 DQ118
Comet-like Activity Discovered on Quasi-Hilda Asteroid 2009 DQ118
复制标题
在类希尔达小行星 2009 DQ118 上发现类彗星活动
DOI:
10.3847/2515-5172/acc17c
复制
发表时间:
2023
期刊:
影响因子:
--
通讯作者:
V. Gonano
中科院分区:
文献类型:
--
作者:
W. J. Oldroyd;C. O. Chandler;C. Trujillo;W. A. Burris;J. Kueny;H. Hsieh;Kennedy A. Farrell;Jarod A. DeSpain;Michele T. Mazzucato;Milton K. D. Bosch;Tiffany Shaw;V. Gonano
We report evidence of comet-like activity on asteroid 2009 DQ118, a quasi-Hilda object near the 3:2 interior mean-motion resonance with Jupiter. This discovery was made by volunteers as part of the Active Asteroids Citizen Science project, a NASA Partner hosted on the Zooniverse platform. Follow-up archival searches yielded over 20 images of 2009 DQ118 exhibiting a comet-like tail on UT 2016 March 8 and 9 acquired with the Dark Energy Camera on the Blanco 4 m telescope at the Cerro Tololo Inter-American Observatory, Chile. These images were taken when 2009 DQ118 was near its 2016 perihelion passage. 2009 DQ118 will next reach perihelion on UT 2023 April 22; hence, the next several months are an excellent time to observe 2009 DQ118 to search for a second epoch of activity for this object.