The First Confirmed La Silla-QUEST Type Ia SN (LSQ11bk)
ATel #3812; E. Hadjiyska (Yale), D. Rabinowitz (Yale), C. Baltay (Yale), N. Ellman (Yale), R. McKinnon (Yale), P. Nugent (LBNL), M. Phillips (LCO), N. Morrell (LCO), E. Hsiao (LCO)
on 17 Dec 2011; 22:12 UT
Credential Certification: Ellie Hadjiyska (ellie.hadjiyska@yale.edu)
Subjects: Optical, Supernovae
Referred to by ATel #: 4037, 4039, 4059, 4063, 4076, 4079, 4299, 4300, 4303, 4336, 4337, 4339, 4357, 4362, 4379, 4415, 4460, 4469, 4493, 4504, 4545, 4550, 4553, 4571, 4576, 4594, 4618, 4620, 4624, 4626, 4644, 4646, 4649, 4673, 4696, 4698, 4703, 4729, 4731, 4809, 4935, 4940, 4955, 4990, 5060, 5067, 5088, 5100, 5233, 5247, 5249, 5250, 5284, 5290, 5296, 5329, 5331, 5335, 5338, 5356, 5373, 5380, 5392, 5443, 5453, 5459, 5510, 5521, 5566, 5578, 5595, 5596, 5602, 5615, 5617, 5620, 5622, 5645, 5648, 5650, 5678, 5681, 5683, 5686, 5696, 5714, 5716, 5718, 5738, 5748, 5755, 5796, 5805, 5813, 5825, 5834, 5839, 5842, 5857, 5860, 5864, 5912, 5914, 5915, 5934, 5937, 5938, 5961, 5968, 5970, 5998, 6037, 6078, 6080, 6124, 6495, 6508, 6698
We report the discovery of a Type Ia SN at z=0.04 on December 6.058
(when the variable was at magnitude R = 17.2), as part of the La Silla-QUEST
(LSQ) transient survey conducted with Yale University's 160-megapixel QUEST
camera on the 1.0-m Schmidt Telescope of the European Southern Observatory
at La Silla, Chile (Rabinowitz et al. 2011, Ap.J. 732, 512). The source's
position is RA = 4h20m44s.27, Dec = -8o35'55".46 (equinox 2000.0). A
faint source is reported at this position in the Guide Star Catalog V2.3.2
(with F = 20.96). Followup LSQ observations taken during December 7-17
reveal a gradual brightness increase by > 0.7 mag. A spectrum (range 0.4-1.0 um)
taken on December 16 with IMACS on the Magellan-Baade 6.5-m telescope at
the Carnegie Institution's Las Campanas Observatory identified the source as
a Type Ia SN near peak. Additional follow up observations have been
initiated with the Swope Telescope and RetroCam since December 15.
