STELLAR SURFACE PHENOMENA : ASYMMETRIC LIGHT CURVES OF THE RS CVN BINARIES LAM AND AND II PEG.
In: Publications of the Astronomical Society of the Pacific, Jg. 92 (1980-10-01), Heft 549, S. 717-724
Online
serialPeriodical
Zugriff:
The feasibility of applying the star-spot model to explain the unusual asymmetric light curves exhibited by the noneclipsing RS CVn-like binaries lambda And and II Peg is examined. A simple spot model incorporating two cool dark regions separated by 40-100 degrees in longitude and with size ratio approximately 2 to 1 can reproduce the observed light variations to a precision of approximately 0.01 m. For lambda And, two-color photometry obtained by Guinan shows a markedly different amplitude in the ultraviolet compared with the red, and permits us to establish a temperature difference delta T between photosphere and spot of approximately 800 K.
Titel: |
STELLAR SURFACE PHENOMENA : ASYMMETRIC LIGHT CURVES OF THE RS CVN BINARIES LAM AND AND II PEG.
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Autor/in / Beteiligte Person: | Bopp, B. W. ; Noah, P. V. |
Link: | |
Zeitschrift: | Publications of the Astronomical Society of the Pacific, Jg. 92 (1980-10-01), Heft 549, S. 717-724 |
Veröffentlichung: | 1980 |
Medientyp: | serialPeriodical |
ISSN: | 0004-6280 (print) ; 1538-3873 (print) |
DOI: | 10.1086/130736 |
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