|
comments
OEJV# |
Publication's title |
Author |
|
Date |
|
Abstract / note |
|
|
|
0200 | Multi-epoch optical photometry and spectroscopy of AT-2019bsd: a fast FeII-type nova in M31 153 kB | U. Munari, P. Ochner | | 2019-07-30 | | We have obtained multi-epoch BV photometry and optical spectroscopy of the unclassified transient AT 2019bsd that appeared in March 2019 within a few arcmin from the center of M31. Our observations show it to be a FeII-class nova, characterized by a t2=9 days decline time and a FWHM=1650 km/s expansion velocity. The heliocentric radial velocity derived from hydrogen and FeII emission lines is about −,,400 km/s, in agreement with the bulk −,,300 km/s velocity of M31 galaxy. The absolute magnitude of AT 2019bsd close to peak brightness is M(V)=−,,9.6 mag with an uncertainty of 0.2 mag depending on the adopted reddening, and it is in agreement with prediction from magnitude at maximum vs rate of decline relations. Simbad object(s): AT 2019bsd, | comments: 0 |
|
No comments have been added yet...
Write your comment:
Your comment will be posted to OEJV portal and sent to the author by e-mail.
The OEJV is registered as on-line continuous journal: ISSN 1801-5964.
* These web pages are hosted on the server of Express Astronomical Information (EAI) *
Created by © Web Services, 2005
|