|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'504'928
Articles rated: 2609
26 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Optical Studies of 8 AM Herculis-Type Cataclysmic Variable Stars | | John R. Thorstensen
; Mokhine Motsoaledi
; David A. H. Buckley
; Patrick Woudt
; Brian Warner
; | | Date: |
Mon, 15 Jun 2020 01:27:19 GMT (1864kb,D) | | Abstract: | We report detailed follow-up observations of 8 cataclysmic variable stars
(CVs) that are apparently AM Her stars, also called polars. For all, we either
determine orbital periods for the first time, or improve on existing
determinations. The seven for which we have spectra show the high-amplitude
radial velocity curves and prominent HeII 4686 emission lines characteristic of
strongly magnetic CVs, and their periods, which range from 81 to 219 minutes,
are also typical for AM Her stars. Two objects from the Gaia-alerts index,
Gaia18aot and Gaia18aya, are newly identified as CVs. Another, RX J0636.3+6554,
eclipses deeply, while CSS080228:081210+040352 shows a sharp dip that is
apparently a partial eclipse. The spectrum of Gaia18aya has a cyclotron
harmonic near 5500 Angstroms that constrains the surface field to about 49
Megagauss or greater. | | Source: | arXiv, 2006.8078 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER