Time-resolved optical spectroscopy of IR GEM in quiescence

Bibcode
1991AJ....101..196L
DOI
10.1086/115678
Lazaro, C.; Martinez-Pais, I. G.; Arevalo, M. J.; Solheim, J. E.
Bibliographical reference

Astronomical Journal (ISSN 0004-6256), vol. 101, Jan. 1991, p. 196-200.

Advertised on:
1
1991
Number of authors
4
IAC number of authors
3
Citations
3
Refereed citations
3
Description
Spectroscopic observations of the dwarf nova IR Gem in the range 4000-7000 A, covering a whole orbital period, are presented. The dates of the observations (February 3-6, 1987) were at the end of the decline from an outburst and the beginning of quiescence. Evidence of phase related variations in H-alpha equivalent width is found, showing a maximum at phase 0.5. The mean quiescence spectra are compared with published accretion disk models, deriving a mass transfer rate for the system of about 10 to the -10th solar mass/yr, but it is shown that these models do not reproduce satisfactorily the observed spectra.
Type
Refereed
Dwarf novae

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