Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-11-04
Astronomy and Astrophysics
Astrophysics
5 pages, 4 figures, accepted by A&A
Scientific paper
10.1051/0004-6361:20066110
TV Ret was classified as a cataclysmic variable due to an outburst observed in 1977. We intended to confirm this classification and derive some basic properties of the system. Low resolution optical spectra were obtained for a spectral classification of the object. We find that the object is not a cataclysmic variable but an emission line galaxy with a redshift z=0.0964. An R-image taken in very good seeing conditions shows that the object is extended. We show that TV Ret is a blue dwarf galaxy, probably compact, with an absolute magnitude of MB = -17.5, a metallicity of 0.12 solar, and an average temperature of 1.3 10^4 K. The line ratios place it among the HII galaxies, although close to the border of the Seyfert2s. The outburst, which was observed in 1977, could thus be explained by a supernova explosion. However, with an absolute magnitude around MB = -21, it was an extremely bright one.
Horst Hannes
Lidman Chris
Saviane Ivo
Schmidtobreick Linda
Tappert Claus
No associations
LandOfFree
The emission line galaxy TV Reticuli: Evidence for an ultraluminous supernova does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The emission line galaxy TV Reticuli: Evidence for an ultraluminous supernova, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The emission line galaxy TV Reticuli: Evidence for an ultraluminous supernova will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-75895