Archival HST study of novae. I. The Seyfert galaxy NGC 3627 |
| |
Authors: | S. Alis,A.T. Saygaç |
| |
Affiliation: | a ?stanbul University, Science Faculty, Astronomy and Space Sciences Department, 34119 Universite, ?stanbul, Turkey b Visiting Researcher, INAF-Osservatorio Astronomico di Capodimonte, via Moiariello 16, 80131 Napoli, Italy |
| |
Abstract: | A V-band nova search was carried out in NGC 3627 with archival Hubble Space Telescope WFPC2 data which was obtained in the period between November 1997 and January 1998. A total of four novae candidates were discovered which corresponds to a global nova rate of R = 83.65 ± 7.58 yr−1. Taking into account the K-band luminosity obtained from 2MASS (Jarrett et al., 2003) yielded a luminosity specific nova rate (LSNR) of νK = 9.60 ± 1.64 novae per year per 1010L⊙,K. Excluding one of the candidates which may be a long-period variable leads to a LSNR of νK = 7.20 ± 1.23 novae per year per 1010L⊙,K. These values are higher than other known nova rates for external galaxies except the Magellanic Clouds. |
| |
Keywords: | Novae Cataclysmic variables Galaxies: individual (NGC 3627) Galaxies: Seyfert |
本文献已被 ScienceDirect 等数据库收录! |
|