Tomographic Separation of Composite Spectra. III. Ultraviolet Detection of the Hot Companion of phi Persei

Citations Over TimeTop 14% of 1995 papers

Abstract

view Abstract Citations (40) References (25) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Tomographic Separation of Composite Spectra. III. Ultraviolet Detection of the Hot Companion of phi Persei Thaller, Michelle L. ; Bagnuolo, William G., Jr. ; Gies, Douglas R. ; Penny, Laura R. Abstract We have used archival lUE high-dispersion UV spectra of the Be binary φ Per and published spectroscopic radial velocity curves to reconstruct the individual primary and secondary spectra using Doppler tomography. The primary's spectrum has rotationally broadened photospheric lines (consistent with a spectral type B0.5 III-Ve) and narrow "shell" lines formed in its circumstellar disk. The recovered secondary spectrum (which contributes only ≍12% of the UV flux) has a very different appearance, with strong emission in C IV λ1550 and many narrow, weak absorption lines (mainly Fe v) similar to those found in the spectra of hot 0-type subdwarfs (in particular the sdO6 star HD 49798). These results strongly support Poeckert's (1981) model in which the secondary is the stripped-down core of a once massive star. Such objects could be the progenitors of unusual supernovae. Publication: The Astrophysical Journal Pub Date: August 1995 DOI: 10.1086/176016 Bibcode: 1995ApJ...448..878T Keywords: STARS: BINARIES: SPECTROSCOPIC; STARS: EARLY-TYPE; STARS: EMISSION-LINE; BE; STARS: INDIVIDUAL CONSTELLATION NAME: PHI PERSEI; ULTRAVIOLET: STARS full text sources ADS | data products SIMBAD (2) MAST (1) INES (1) Related Materials (10) Part 1: 1992ApJ...385..708B Part 2: 1994ApJ...423..446B Part 4: 1997ApJ...483..439P Part 5: 1997ApJ...485..350L Part 6: 1999ApJ...518..450P Part 7: 2001ApJ...548..889P Part 8: 2002ApJ...565.1216H Part 9: 2002ApJ...575.1050P Part 10: 2002ApJ...574..957G Part 11: 2008ApJ...681..554P

Related Papers

• → Self-Absorption Effects in the Soft X-Ray Mα and Mβ Emission Spectra of the Rare Earth Elements(1967)72 cited
• → UV Line Emission of Symbiotic Stars(1982)11 cited
• → On the ultraviolet energy distributions and the temperatures of peculiar B and A stars(1985)8 cited
• → UV line emission of symbiotic stars(1982)1 cited