IY UMa: A literal probe of accretion disc structure

Details IY UMa: A literal probe of accretion disc structure IY UMa: A literal probe of accretion disc structure

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004hst..prop10271h&link_type=abstract

HST Proposal ID #10271

Computer Science

Hst Proposal Id #10271 Hot Stars

Scientific paper

IY UMa is a recently-discovered double-lined eclipsing CV with an extremely high inclination. The orientation allows us a view into a narrow shock-heated cavity driven into the disc edge by the accretion stream from the mass donor star. This {literal} probe is so far unique. At the orbital phase when we look into the hot cavity, the emission from the cavity should be a significant fraction of the total UV flux. Comparison with our hydrodynamic simulations of the stream-disc impact will allow us to determine the structure of the cool quiescent outer disc. We will fully characterise the white dwarf, measuring its rotation rate, surface gravity, effective temperature, chemical abundances, accretion rate and gravitational redshift. The obscuration of the inner UV emitting regions by vertical structure associated with spiral density waves will be measured and interpreted by comparison with our simulations. The observations will be performed in the CVZ.

Affiliated with

Also associated with

No associations

Rating

IY UMa: A literal probe of accretion disc structure 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 IY UMa: A literal probe of accretion disc structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and IY UMa: A literal probe of accretion disc structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1011219