INFRARED SPECTROSCOPY OF SYMBIOTIC STARS. IX. D-TYPE SYMBIOTIC NOVAE

Time-series spectra of the near-infrared 1.6 mu m region have been obtained for five of the six known D-type symbiotic novae. The spectra map the pulsation kinematics of the Mira component in the Mira-white dwarf binary system and provide the center-of-mass velocity for the Mira. The Miras in most D...

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Veröffentlicht in:	The Astrophysical journal 2013-06, Vol.770 (1), p.1-25
Hauptverfasser:	Hinkle, Kenneth H, FEKEL, FRANCIS C, Joyce, Richard R, Wood, Peter
Format:	Artikel
Sprache:	eng
Schlagworte:	ABSORPTION SPECTROSCOPY ASTROPHYSICS, COSMOLOGY AND ASTRONOMY Binary systems CARBON MONOXIDE DUSTS INFRARED SPECTRA Infrared spectroscopy Kinematics MASS MOLECULES NOVAE Progenitors (astrophysics) Pulsation PULSATIONS SCATTERING Spectra STAR EVOLUTION STELLAR WINDS SUPERNOVAE SYMBIOTIC STARS WHITE DWARF STARS
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Zusammenfassung:	Time-series spectra of the near-infrared 1.6 mu m region have been obtained for five of the six known D-type symbiotic novae. The spectra map the pulsation kinematics of the Mira component in the Mira-white dwarf binary system and provide the center-of-mass velocity for the Mira. The Miras in most D-symbiotic novae have descended from intermediate mass progenitors. The large amount of mass lost from the Mira combined with the massive white dwarf companion suggests that these systems are supernova candidates. However, timescales and the number of objects make these rare events.
ISSN:	0004-637X 1538-4357
DOI:	10.1088/0004-637X/770/1/28