A search for coronal emission lines in HD 153919 /3U 1700-37/

Abstract

view Abstract Citations (1) References (17) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A search for coronal emission lines in HD 153919 (3U 1700-37). Lambert, D. L. ; Tomkin, J. Abstract Low-noise Reticon spectra of HD 153919, which is identified with the X-ray source 3U 1700-37, do not show the 5303-A forbidden Fe XIV emission line previously reported by Dupree et al. (1977). The new spectra provides an upper limit to the central intensity of a forbidden Fe XIV line which is at least a factor of 6 below the intensity reported by Dupree et al. A variation in the forbidden Fe XIV emission-line flux could occur if the X-ray flux were variable on a time scale of years. Publication: The Astrophysical Journal Pub Date: February 1979 DOI: 10.1086/182898 Bibcode: 1979ApJ...228L..37L Keywords: Astronomical Spectroscopy; Eclipsing Binary Stars; Iron; Line Spectra; O Stars; Optical Emission Spectroscopy; X Ray Sources; Absorption Spectra; Emission Spectra; Helium Atoms; Hydrogen Atoms; Radial Velocity; Radiant Flux Density; Spectral Line Width; Stellar Coronas; Ultraviolet Spectroscopy; Astrophysics; Emission Lines:Of Stars; Of Stars:X-Ray Binaries full text sources ADS | data products SIMBAD (2)