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A 150 MG magnetic white dwarf in the cataclysmic variable RX J1554.2+2721
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UNSPECIFIED (2004) A 150 MG magnetic white dwarf in the cataclysmic variable RX J1554.2+2721. ASTROPHYSICAL JOURNAL, 613 (2 Part 2). L141-L144. ISSN 0004-637X
Full text not available from this repository.Abstract
We report the detection of Zeeman-split Lyalpha absorption pi and sigma(+) lines in the far-ultraviolet Hubble Space Telescope/Space Telescope Imaging Spectrograph (STIS) spectrum of the magnetic cataclysmic variable RX J1554.2 + 2721. Fitting the STIS data with magnetic white dwarf model spectra, we derive a field strength of B similar or equal to 144 MG and an effective temperature of 17,000 K less than or similar to T-eff less than or similar to 23,000 K. This measurement makes RX J1554.2 + 2721 only the third cataclysmic variable containing a white dwarf with a field exceeding 100 MG. Similar to the other high-field polar AR UMa, RX J1554.2 + 2721 is often found in a state of feeble mass transfer, which suggests that a considerable number of high-field polars may still remain undiscovered.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QB Astronomy |
| Journal or Publication Title: | ASTROPHYSICAL JOURNAL |
| Publisher: | UNIV CHICAGO PRESS |
| ISSN: | 0004-637X |
| Date: | 1 October 2004 |
| Volume: | 613 |
| Number: | 2 Part 2 |
| Number of Pages: | 4 |
| Page Range: | L141-L144 |
| Publication Status: | Published |
| URI: | http://wrap.warwick.ac.uk/id/eprint/7969 |
Data sourced from Thomson Reuters' Web of Knowledge
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