NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Optical and UV spectra of RS CVn starsThe observed phenomenology in RS CVn and related binary systems is considered in terms of its modeling according to solar activity by examining UV and optical spectroscopy. Current data are examined to validate the existence of cool starspots, plage, prominences, and flares, as well as to determine the consistency of spatial correlations given by these data. RS CVn stars show spots at or near the poles, contrasting the low latitudes of solar spots; plage appears to be associated with cool spots on BY Draconis-like systems; plage and prominences, although identified as distinct phenomena, are theorized to be the same event in some cases. More spectroscopic and photometric observations are proposed to identify the detailed structure and locations of spots. UV and visible data are also required to distinguish plage regions from flare variations as well as determine the relation of extended structures to starspot and plage phenomena in RS CVn systems.
Document ID
19910060284
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Ramsey, Lawrence W.
(Pennsylvania State University University Park, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Subject Category
Astrophysics
Accession Number
91A44907
Funding Number(s)
CONTRACT_GRANT: NAG5-563
CONTRACT_GRANT: NSF AST-86-18167
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available