The Open UniversitySkip to content
 

Search for the return of activity in active asteroid 176P/LINEAR

Hsieh, Henry H.; Denneau, Larry; Fitzsimmons, Alan; Hainaut, Olivier R.; Ishiguro, Masateru; Jedicke, Robert; Kaluna, Heather M.; Keane, Jacqueline V.; Kleyna, Jan; Lacerda, Pedro; MacLennan, Eric M.; Meech, Karen J.; Moskovitz, Nick A.; Riesen, Timm; Schunova, Eva; Snodgrass, Colin; Trujillo, Chadwick A.; Urban, Laurie; Vereš, Peter; Wainscoat, Richard J. and Yang, Bin (2014). Search for the return of activity in active asteroid 176P/LINEAR. Astronomical Journal, 147(4), article no. 89.

DOI (Digital Object Identifier) Link: https://doi.org/10.1088/0004-6256/147/4/89
Google Scholar: Look up in Google Scholar

Abstract

We present the results of a search for the reactivation of active asteroid 176P/LINEAR during its 2011 perihelion passage using deep optical observations obtained before, during, and after that perihelion passage. Deep composite images of 176P constructed from data obtained between 2011 June and 2011 December show no visible signs of activity, while photometric measurements of the object during this period also show no significant brightness enhancements similar to that observed for 176P between 2005 November and 2005 December when it was previously observed to be active. An azimuthal search for dust emission likewise reveals no evidence for directed emission (i.e., a tail, as was previously observed for 176P), while a one-dimensional surface brightness profile analysis shows no indication of a spherically symmetric coma at any time in 2011. We conclude that 176P did not in fact exhibit activity in 2011, at least not on the level on which it exhibited activity in 2005, and suggest that this could be due to the devolatization or mantling of the active site responsible for its activity in 2005.

Item Type: Journal Item
Copyright Holders: 2014 The American Astronomical Society.
ISSN: 1538-3881
Extra Information: 12 pp.
Keywords: comets; minor planets; asteroids
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Research Group: Space
Item ID: 43028
Depositing User: Colin Snodgrass
Date Deposited: 20 May 2015 12:57
Last Modified: 07 Dec 2018 10:31
URI: http://oro.open.ac.uk/id/eprint/43028
Share this page:

Metrics

Altmetrics from Altmetric

Citations from Dimensions

Actions (login may be required)

Policies | Disclaimer

© The Open University   contact the OU