English

Comet 252P/LINEAR: born (almost) dead?

Earth and Planetary Astrophysics 2016-03-09 v1

Abstract

Previous studies have revealed Jupiter-family comet 252P/LINEAR as a comet that was recently transported into the near-Earth object (NEO) region in 1800\sim1800~AD yet only being weakly active. In this Letter, we examine the "formed (almost) dead" hypothesis for 252P/LINEAR using both dynamical and observational approaches. By statistically examining the dynamical evolution of 252P/LINEAR over a period of 10710^7~years, we find the median elapsed residency in the NEO region to be 4×1024\times10^2~years which highlights the likelihood of 252P/LINEAR as an (almost) first-time NEO. With available cometary and meteor observations, we find the dust production rate of 252P/LINEAR to be at the order of 10610^6~kg per orbit since its entry to the NEO region. These two lines of evidence support the hypothesis that the comet was likely to have formed in a volatile-poor environment. Cometary and meteor observations during the comet's unprecedented close approach to the Earth around 2016 Mar. 21 would be useful for the understanding of the surface and evolutionary properties of this unique comet.

Keywords

Cite

@article{arxiv.1601.07837,
  title  = {Comet 252P/LINEAR: born (almost) dead?},
  author = {Quan-Zhi Ye and Peter G. Brown and Paul A. Wiegert},
  journal= {arXiv preprint arXiv:1601.07837},
  year   = {2016}
}

Comments

ApJL in press

R2 v1 2026-06-22T12:38:45.873Z