New or Increased Cometary Activity in (2060) 95P/Chiron

Matthew M. Dobson,Megan E. Schwamb,Alan Fitzsimmons,Michael S. P. Kelley,Tim Lister,Luke J. Shingles,Larry Denneau,A. N. Heinze,Ken W. Smith,John L. Tonry,Henry Weiland,David. R. Young,Susan D. Benecchi,Anne J. Verbiscer

Research Notes of the AAS（2021）

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摘要

Abstract Asteroid Terrestrial-impact Last Alert System (ATLAS) observations of Centaur (2060) 95P/Chiron show a brightening in the apparent magnitude not due rotational light curves or phase effects. This onset or enhancement of cometary activity started after 2021 February 8 UT and continued in later observations from 2021 June 18 UT onward. Recent ATLAS observations and deeper follow-up imaging obtained using the Las Cumbres Observatory 1.0 m robotic telescope network find no confirmed signature of coma or tail-like features.

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