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An Extremely Slow Nova? | | Patricia Whitelock
; Freddy Marang
; | | Date: |
28 Feb 2001 | | Journal: | Mon.Not.Roy.Astron.Soc. 323 (2001) L13 | | Subject: | astro-ph | | Affiliation: | South African Astronomical Observatory | | Abstract: | The binary companion to the peculiar F supergiant HD 172481 is shown to be a Mira variable with a pulsation period of 312 days. Its characteristics are within the normal range found for solitary Miras of that period, although its pulsation amplitude and mass-loss rate (M(dot) ~ 3 x 10^{-6} solar masses per year) are higher than average. Reasons are given for suspecting that the F supergiant, which has L ~ 10^4 solar luminosities, is a white dwarf burning hydrogen accreted from its companion. | | Source: | arXiv, astro-ph/0102498 | | Services: | Forum | Review | PDF | Favorites | |
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