The Precursor of PSN J12355230+2755559 in NGC 4559

Details The Precursor of PSN J12355230+2755559 in NGC 4559 The Precursor of PSN J12355230+2755559 in NGC 4559

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012atel.3865....1v&link_type=abstract

The Astronomer's Telegram, #3865

Astronomy and Astrophysics

Astronomy

Optical, Supernovae, Transient, Variables

Scientific paper

Schuyler D. Van Dyk (Spitzer Science Center/Caltech), Mohan Ganeshalingam, Jeffrey M. Silverman, and Alexei V. Filippenko (UC Berkeley) report identification of the precursor of the "SN impostor" PSN J12355230+2755559 in archival Hubble Space Telescope (HST) WFPC2 and ACS/HRC multi-band images, the former dating from 2001 May 25 and the latter from 2005 March 8 UT. Using the discovery images of the SN impostor made with the Katzman Automatic Imaging Telescope (KAIT) from 2012 January 11 UT, we have isolated a candidate star, using absolute astrometry with an uncertainty 0.7" (approximately an error circle of 15-pixel radius on both the WFPC2/PC or ACS/HRC images).

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