2012CBET.3148....2W


Query : 2012CBET.3148....2W

2012CBET.3148....2W - Central Bureau Electronic Telegrams, 3148, 2 (2012/June-0)

Supernova 2012cw in NGC 3166 = PSN J10134795+0326026.

WANG X.-F., LIU Q., ZHANG J.-J., ZHANG T.-M. and BRIMACOMBE J.

Abstract (from CDS):

X.-F. Wang and Q. Liu, Tsinghua Center for Astrophysics, Tsinghua University; J.-J. Zhang, Yunnan Astronomical Observatory of China (YNAO); and T.-M. Zhang, National Astronomical Observatory of China, report on an optical spectrogram (range 340-920 nm) of PSN J10134795+0326026 = SN 2012cw that was obtained on June 18.5 UT with the 2.4-m telescope (+ YFOSC) at the LiJiang Gaomeigu Station of the YNAO. The spectrum is consistent with a type-Ic supernova around maximum light. Cross-correlation with a library of supernova spectra using the "Supernova Identification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) shows that 2012cw matches the normal type-Ic supernova 2004aw at +2 days. Adopting a recession velocity 1345 km/s for the host galaxy, NGC 3166 (after de Vaucouleurs et al. 1991, RC3.9C; via the NED), they measure the velocity of the Si II 635.5-nm absorption feature to be about 11400 km/s.

Abstract Copyright: ∼

Journal keyword(s):

Simbad objects: 3

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Number of rows : 3
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 NGC 3166 GiP 10 13 45.7270131936 +03 25 29.310401424   11.2       ~ 246 0
2 SN 2012cw SN* 10 13 47.95 +03 26 02.6           SNIc 12 2
3 SN 2004aw SN* 11 57 50.24 +25 15 55.1   18.06       SNIc 209 1

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