Farihi, J;
(2005)
Cool versus ultracool white dwarfs.
Astronomical Journal
, 129
(5)
pp. 2382-2385.
10.1086/429527.
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Abstract
A preliminary BVRIJHK analysis of the white dwarfs SSSPM J2231-7514 and SSSPM J2231-7515 is presented. Although both stars were reported to have T eff < 4000 K, the analysis here indicates T eff ≈ 4250 K for both SSSPM J2231-7514 and SSSPM J2231-7515. Given substantial scientific interest in the coolest extant degenerate stars, it is necessary to distinguish sub-4000 K objects from the bulk of cool white dwarfs. This analysis reiterates the importance of near-infrared observations in constraining the spectral energy distributions and effective temperatures of the coolest white dwarfs and briefly discusses their possible origins.
| Type: | Article |
|---|---|
| Title: | Cool versus ultracool white dwarfs |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1086/429527 |
| Publisher version: | http://dx.doi.org/10.1086/429527 |
| Language: | English |
| Additional information: | Copyright © 2005. The American Astronomical Society. All rights reserved. |
| Keywords: | binaries: visual; stars: fundamental parameters; stars: individual (SSSPM J2231-7514 SSSPM J2231-7515) ; white dwarfs |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1477415 |
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