Search for Cometary Activity in KBO (24952) 1997 QJ4

Details Search for Cometary Activity in KBO (24952) 1997 QJ4 Search for Cometary Activity in KBO (24952) 1997 QJ4

Jun 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003em%26p...92..169m&link_type=abstract

Earth, Moon, and Planets, v. 92, Issue 1, p. 169-181 (2003).

Physics

2

Scientific paper

Deep imaging was performed with the Subaru Telescope on Mauna Kea centered on the position of the KBO (24952) 1997 QJ4 on 2 half-nights during October 2002. A deep search for evidence of a dust coma was conducted which could be indicative of cometary activity down to a limit of mV = 31 mag arcsec-2. No coma was detected, and from this sensitive upper limits on dust production can be set at Q < 0.01 kg s-1. Brightness variations consistent with rotational modulation were seen, implying a period of rotation longer than 4 hrs, with a range > 0.3 mag corresponding to a minimum projected axis ratio of 1:1.3.

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