Coordinated Observations of the Active Binary σ 2 CrB with Chandra, EUVE, and the VLA

Details Coordinated Observations of the Active Binary σ 2 CrB with Chandra, EUVE, and the VLA Coordinated Observations of the Active Binary σ 2 CrB with Chandra, EUVE, and the VLA

Oct 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000head....5.4214o&link_type=abstract

American Astronomical Society, HEAD Meeting #5, #42.14; Bulletin of the American Astronomical Society, Vol. 32, p.1257

Astronomy and Astrophysics

Astronomy

Scientific paper

We report on coordinated observations of the short-period active binary σ 2 CrB (F6V + G0V, P orb=1.14 d) taken with the Chandra X-ray Observatory, the Extreme Ultraviolet Explorer, and the Very Large Array. EUVE observations span more than 7 orbital periods of the system. Centered in the middle of the nine day EUVE observation is a Chandra ACIS-S+HETGS grating observation lasting 85 ks and an overlapping 12 hour multifrequency VLA observation. We discuss the coronal variability, present high-resolution X-ray spectra and preliminary analysis including the search for flares, and tie the thermal high temperature emission together with nonthermal coronal emission. RAO acknowledges funding from a NASA GSRP fellowship, grant NGT5-50241. AB and TRA acknowledge funding from NASA grant NAG5-3226, and JLL acknowledges support from NASA through grants S-56500-D and H-04630D.

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