Spectrophotometry of the H-alpha region in the spectrum of HR 1099 during the February 1978 radio flare

Abstract

view Abstract Citations (15) References (10) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Spectrophotometry of the Halpha region in the spectrum of HR 1099 during the February 1978 radio flare. Fraquelli, D. A. Abstract Spectrophotometry of the Ha emission line in the spectrum of HR 1099 (= HD 22468= V7 11 Tauri) was obtained during the radio flare of February 1978. The profiles observed during the flare have higher peak intensities and larger equivalent widths than profiles obtained outside of the flare at approximately the same orbital phases. Both the general shapes of the profiles and the equivalent widths appear to correlate with the radio flux. A preflare profile exhibits a flare-type profile, suggesting that radio outbursts in RS CVn systems may be preceded by Ha enhancement. Publication: The Astronomical Journal Pub Date: December 1978 DOI: 10.1086/112360 Bibcode: 1978AJ.....83.1535F Keywords: Binary Stars; H Alpha Line; Radio Bursts; Radio Stars; Stellar Spectrophotometry; Radiant Flux Density; Spectral Line Width; Astrophysics; H Alpha:RS CVn Binaries; Radio Bursts:RS CVn Binaries; RS CVn Binaries:Spectrophotometry full text sources ADS | data products SIMBAD (1)