Spectroscopic Diagnostics of Precessing Discs: the Stream-Disc Impact in XTEJ1118+480 (= KV UMa) in outburst

Details Spectroscopic Diagnostics of Precessing Discs: the Stream-Disc Impact in XTEJ1118+480 (= KV UMa) in outburst Spectroscopic Diagnostics of Precessing Discs: the Stream-Disc Impact in XTEJ1118+480 (= KV UMa) in outburst

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004rmxac..20..160h&link_type=abstract

Compact Binaries in the Galaxy and Beyond, Proceedings of the conference held 17-22 November, 2003 in La Paz, Baja California Su

Astronomy and Astrophysics

Astronomy

Accretion, Accretion Discs, Stars: Individual (Xtej1118+480)

Scientific paper

We present orbital trailed spectrograms of XTEJ1118+480 taken at the rise to outburst maximum in 2000. These show an evolving S-wave feature arising from the stream impact on the edge of the eccentric precessing disc. By comparing the observed S-waves with those generated in an SPH simulation, we deduce the disc precession phases corresponding to our observations. Hence we infer changes in the disc precession period around the outburst maximum: taken at face value our spectroscopy suggests a precession period temporarily as short as 20 days.

Affiliated with

Also associated with

No associations

Rating

Spectroscopic Diagnostics of Precessing Discs: the Stream-Disc Impact in XTEJ1118+480 (= KV UMa) in outburst 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 Spectroscopic Diagnostics of Precessing Discs: the Stream-Disc Impact in XTEJ1118+480 (= KV UMa) in outburst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectroscopic Diagnostics of Precessing Discs: the Stream-Disc Impact in XTEJ1118+480 (= KV UMa) in outburst will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-771919