Discovery of a large-amplitude photometric wave in the RS CVn binary BD +61 deg 1211 /= DM UMa/ and constraints on starspot models for the observed variation

Details Discovery of a large-amplitude photometric wave in the RS CVn binary BD +61 deg 1211 /= DM UMa/ and constraints on starspot models for the observed variation Discovery of a large-amplitude photometric wave in the RS CVn binary BD +61 deg 1211 /= DM UMa/ and constraints on starspot models for the observed variation

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...251..585k&link_type=abstract

Astrophysical Journal, Part 1, vol. 251, Dec. 15, 1981, p. 585-590.

Astronomy and Astrophysics

Astrophysics

15

Binary Stars, Radiant Flux Density, Stellar Spectra, Stellar Spectrophotometry, X Ray Sources, Light Curve, Photosphere, Stellar Models, Stellar Temperature, Temperature Distribution

Scientific paper

RS CVn binaries exhibit strong coronal chromospheric activity. The classic optical photometric indicator of RS CVn activity is a distortion wave, which, in the canonical model of Hall (1972), results from a large-scale, nonuniform distribution of starspots on the stellar surface. The discovery of such a photometric wave is discussed. Several strking features of this wave provide motivation for detailed modeling of the assumed underlying starspot distribution. A rather general starspot model is described. The model is used to derive constraints on various physical parameters of the system. The results of the investigation confirm that the canonical starspot of RS CVn activity can provide a good explanation of the observed optical behavior. The model fitting indicates that the system has an unusually extensive distribution of spots.

Affiliated with

Also associated with

No associations

Rating

Discovery of a large-amplitude photometric wave in the RS CVn binary BD +61 deg 1211 /= DM UMa/ and constraints on starspot models for the observed variation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Discovery of a large-amplitude photometric wave in the RS CVn binary BD +61 deg 1211 /= DM UMa/ and constraints on starspot models for the observed variation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Discovery of a large-amplitude photometric wave in the RS CVn binary BD +61 deg 1211 /= DM UMa/ and constraints on starspot models for the observed variation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1260903