An extremely slow nova?

Authors
Whitelock, P Marang, F
Citation
P. Whitelock et F. Marang, An extremely slow nova?, M NOT R AST, 323(1), 2001, pp. L13-L16
Citations number
22
Categorie Soggetti
Space Sciences
Journal title
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN journal
00358711 → ACNP
Volume
323
Issue
1
Year of publication
2001
Pages
L13 - L16
Database
ISI
SICI code
0035-8711(20010501)323:1<L13:AESN>2.0.ZU;2-3
Abstract
The binary companion to the peculiar F supergiant HD 172481 is shown to be a Mira variable with a pulsation period of 312 d. Its characteristics are w ithin the normal range found for solitary Miras of that period, although it s pulsation amplitude and mass-loss rate (M) over dot similar to 3 x 10(-6) M. yr(-1) are higher than average. Reasons are given for suspecting that t he F supergiant, which has L similar to 10(4) L., is a white dwarf burning hydrogen accreted from its companion.