Optical Spectroscopy and Progenitor Identification of the Low- Luminosity Transient in UGC2773

Details Optical Spectroscopy and Progenitor Identification of the Low- Luminosity Transient in UGC2773 Optical Spectroscopy and Progenitor Identification of the Low- Luminosity Transient in UGC2773

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009atel.2187....1b&link_type=abstract

The Astronomer's Telegram, #2187

Astronomy and Astrophysics

Astronomy

2

Novae, Supernovae, Transients

Scientific paper

We observed the transient source in UGC 2773 (CBET #1931; hereafter UGC2773 OT2009-1) with the Gemini Multi-Object Spectrograph on the Gemini-North 8-m telescope on 2009 September 2.60 UT. A pair of 1200 sec exposures were obtained with a wavelength coverage of 5000-9000A at a resolution of about 3.5A. The spectrum is dominated by a bright and narrow H-alpha emission line with a width of about 350 km/s, strong CaII IR triplet lines with an apparent P Cygni profile (with the minimum blue-shifted by 365 km/s relative to the systemic velocity of UGC 2773), [CaII] emission lines, and NaI D lines with a P Cygni profile.

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