A large HST program: effective temperatures of cataclysmic variable white dwarfs

Journal
Date Issued
2015
Author(s)
Pala, A. F.
•
Gaensicke, B.
•
Beuermann, K.
•
Bildsten, L.
•
•
Godon, P.
•
Henden, A.
•
Hubeny, I.
•
Knigge, C.
•
Long, K.
•
Marsh, T.
•
Patterson, J.
•
Schreiber, M. R.
•
Sion, E. M.
•
Szkody, P.
•
Townsley, D.
•
Zorotovic, M.
Abstract
We present HST/COS spectroscopy for 40 cataclysmic variables (CVs), observed as part of a 122 orbit HST program. In 31 CVs, the white dwarf (WD) is recognisable through its broad Lyα absorption profile and we measure the WD effective temperatures (Teff) by fitting the HST data of these 31 systems assuming log g = 8.35, which corresponds to the average mass for CV WDs (0.8M⊙). Our results nearly double the number of CV WDs with an accurate temperature measurement.
Coverage
The Golden Age of Cataclysmic Variables and Related Objects - III (Golden2015)
Start page
32
Conferenece
3rd Conference on Golden Age of Cataclysmic Variables and Related Objects
Conferenece place
Palermo
Conferenece date
7-12 September
Uri
Url
Issn Identifier
1824-8039
Ads BibCode
2015gacv.workE..32P
Rights
open.access
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