Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989lock.rept.....s&link_type=abstract
Final Report Lockheed Missiles and Space Co., Palo Alto, CA. Solar and Astrophysics Lab.
Astronomy and Astrophysics
Astrophysics
Algol, Binary Stars, Cool Stars, Microwave Frequencies, Stellar Rotation, Variability, X Rays, Coronas, Eclipses, Iue, Occultation, Very Large Array (Vla)
Scientific paper
Ginga x ray observations of highly active cool star coronae were obtained and analyzed in an effort to better understand the nature of their time variability. The possible types of variability studied included x ray occultations via eclipses in a binary system, rotational modulation of x ray emission, flares, and a search for microflaring. Observation of both sigma2 CrB and Algol were performed successfully by Ginga. The sigma2 CrB observations occurred on 27 to 30 June 1988, and the Algol observations on 12 to 14 January 1989. In the sigma2 CrB observation, simultaneous IUE and Very Large Array (VLA) observations were obtained during part of the Ginga observation. Flaring activity was detected on sigma2 CrB in the Ginga 1.7 to 11 KeV band and in the IUE microwave region. A large flare on Algol which lasted well over 12 hours was detected, began with a maximum temperature of 65 MK which gradually decayed to 36 MK, and evidence was shown of highly ionized Fe line emission.
No associations
LandOfFree
Investigation of X ray variability in highly active cool stars 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 Investigation of X ray variability in highly active cool stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Investigation of X ray variability in highly active cool stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-766051