2003A&A...408..915S


C.D.S. - SIMBAD4 rel 1.7 - 2020.09.30CEST17:53:24

2003A&A...408..915S - Astronomy and Astrophysics, volume 408, 915-919 (2003/9-4)

Photometry of SN 2002bo with template image subtraction.

SZABO G.M., SARNECZKY K., VINKO J., CSAK B., MESZAROS Sz., SZEKELY P. and BEBESI Z.

Abstract (from CDS):

VRI photometry of the type Ia supernova 2002bo is presented. This SN exploded in a dusty region of the host galaxy NGC 3190, thus, subtraction of a template frame was necessary to obtain reliable photometry. We used a template frame of NGC 3190 taken during the course of our galaxy imaging project, fortunately, just a few days before SN 2002bo was discovered. The aim of this project is to collect template frames of nearby galaxies that are potential hosts of bright SNe. Subtraction of pre-SN images helped us to exclude the background light contamination of the host galaxy. The maximum occurred at JD 2452346, with maximal V brightness of 13.58mag MLCS analysis led to T0(B)=JD 2452346.1±0.8 (fiducial B-maximum), E(B-V)=0.24mag±0.02mag, µ0=32.46±0.06, Δ=-0.14±0.04. E(B-V)=0.24(2)mag indicates a significant extinction in the host galaxy as the galactic reddening is negligible toward NGC 3190. The accepted value of Δ indicates that SN 2002bo was a slightly overluminous SN by about 0.14mag relative to fiducial SN type Ia. The distance turned out to be 31.0±3 Mpc. In addition, the heavily obscured SN 2002cv was also detected on the I frame taken on JD 2452434 (June 8, 2002), and a variable star is found in the field, very close to the host galaxy.

Abstract Copyright:

Journal keyword(s): supernovae: individual: SN 2002bo, SN 2002cv - galaxies: fundamental parameters - stars: variables

CDS comments: Table 1 : designations 'A' in column 1 not in Simbad.

Simbad objects: 8

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Number of rows : 8

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 GSC 01425-00629 * 10 18 00.6846777344 +21 49 33.883149873   13.8       ~ 1 0
2 SN 2002cv SN* 10 18 03.68 +21 50 06.2         16.67 SNIa 49 1
3 NGC 3189 GiP 10 18 05.643 +21 49 54.98 12.60 12.12 11.15 11.14   ~ 359 2
4 SN 2002bo SN* 10 18 06.51 +21 49 41.7   13.95       SNIa 277 1
5 TYC 1425-496-1 * 10 18 11.2446084006 +21 53 05.351100413   11.80 11.72     ~ 1 0
6 GSC 01425-00035 * 10 18 17.5287347733 +21 49 10.081263698   14.2       ~ 1 0
7 GSC 01425-00042 * 10 18 27.2934551341 +21 50 46.322158209   13.2       ~ 1 0
8 GSC 01425-00713 * 10 18 28.4557002873 +21 48 12.723326348   14.8       ~ 1 0

    Equat.    Gal    SGal    Ecl

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2020.09.30-17:53:24

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