ROSAT X ray survey observations of active chromospheric binary systems and other selected sources
Abstract
The connection between processes that produce optical chromospheric activity indicators and those that produce x-rays in RS CVn binary systems by taking advantage of the ROSAT All-Sky Survey (RASS) results and our unique ground-based data set was investigated. In RS CVn systems, excess emission in the Ca 2 resonance (K & H) and infrared triplet (IRT) lines and in the Balmer lines of hydrogen is generally cited as evidence for chromospheric activity, which is usually modeled as scaled up solar-type activity. X-ray emission in RS CVn systems is believed to arise from coronal loop structures. Results from spectra data obtained from RASS observations are discussed and presented.
- Publication:
-
Pennsylvania State Univ. Report
- Pub Date:
- April 1993
- Bibcode:
- 1993psu..rept.....R
- Keywords:
-
- Chromosphere;
- Optical Activity;
- Sky Surveys (Astronomy);
- X Ray Astronomy;
- X Ray Binaries;
- Balmer Series;
- Coronal Loops;
- Rosat Mission;
- Solar Activity;
- Astronomy