Time-resolved Spectroscopy of AL Comae Berenices

Details Time-resolved Spectroscopy of AL Comae Berenices Time-resolved Spectroscopy of AL Comae Berenices

Feb 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998apj...494l.223h&link_type=abstract

Astrophysical Journal Letters v.494, p.L223

Other

13

Stars: Low-Mass, Brown Dwarfs, Stars: Variables: Other, Stars: Individual Constellation Name: Al Comae

Scientific paper

We present time-resolved spectroscopy for AL Com, one of the faintest known tremendous outburst amplitude dwarf novae (TOADs). Using newly produced models for a white dwarf and red secondary, we show that the star AL Com has orbitally phase-resolved broad absorption features of yet unidentified origin and an optically thin accretion disk. Radial velocities measured from the few spectra available show essentially no motion of the white dwarf, leading to a strict upper limit on the secondary mass of <=0.18 Msolar, with a likely value of 0.04-0.09 Msolar. This agrees well with recent theoretical arguments placing the TOADs as post-period minimum cataclysmic variables.

Affiliated with

Also associated with

No associations

Rating

Time-resolved Spectroscopy of AL Comae Berenices does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Time-resolved Spectroscopy of AL Comae Berenices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time-resolved Spectroscopy of AL Comae Berenices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1223576