Photometric study of two novae in M31

Abstract

We report $R_c{I}_c$ light curves of 2 novae in the M31 galaxy which were detected in the four year Nainital Microlensing Survey. One of these novae has been tracked from the initial increase in flux while other has been observed during its descending phase of brightness. The photometry of the first nova during the outburst phase suggests its peak $R_c$ magnitude to be about 17.2 mag with a flux decline rate of 0.11 mag day${}^{-1}$ which indicates that it was a fast nova. A month after its outburst, it shows reddening followed by a plateau in $I_c$ flux. The second nova exhibits a bump in $R_c$ and $I_c$, possibly about three weeks after the outburst.

arXiv comment6 pages, 7 figs, Accepted to A&A, replaced with revised version Fri, 16 Oct 2003

References in corpus (1)

• Identification of 13 Cepheids and 333 Other Variables in M31

Cited by in corpus (10)

• X-ray monitoring of optical novae in M31 from July 2004 to February 2005
• Optical novae: the major class of supersoft X-ray sources in M 31
• A Spectroscopic and Photometric Survey of Novae in M31
• Classical novae from the POINT-AGAPE microlensing survey of M31 -- I. The nova catalogue
• A Close Look at the Population of Supersoft and Quasi-Soft X-Ray Sources Observed in M31 with XMM-Newton
• Pixel lensing: Microlensing towards M31
• The Wendelstein Calar Alto Pixellensing Project (WeCAPP): the M31 Nova catalogue
• Nainital Microlensing Survey -- detection of short period Cepheids in the disk of M31
• A Long-term photometric variability and spectroscopic study of luminous blue variable AF And in M31
• Long-term photometric study of a faint W UMa binary in the direction of M31