Photometry, Spectroscopy, And Doppler Tomography Of The Eclipsing LMXB EXO 0748-676 = UY Vol

Details Photometry, Spectroscopy, And Doppler Tomography Of The Eclipsing LMXB EXO 0748-676 = UY Vol Photometry, Spectroscopy, And Doppler Tomography Of The Eclipsing LMXB EXO 0748-676 = UY Vol

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21714421m&link_type=abstract

American Astronomical Society, AAS Meeting #217, #144.21; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

We present optical spectra and Doppler tomography of the low-mass X-ray binary EXO 0748-676 = UY Vol. UY Vol is an eclipsing X-ray binary hosting a neutron star. With a total of 65 spectra spread over 4 nights, we have complete phase coverage and construct trailed spectra and Doppler tomograms for thirteen lines and line blends. Although we were not able to detect fluorescent N III/C III emission from the irradiated secondary, we do detect S-wave emission of several He II lines and O II 5289A. Our analysis of the trailed spectra and tomograms allows us to constrain the origin of the line emission. UY Vol has spent the better part of the last two decades in a burst state, but since our spectroscopy, the source has entered a quiescent phase. The optical counterpart, originally 17th mag has faded substantially to R 22 mag. We present a new light-curve of the source in its quiescent state.
This work is partially supported by the National Science Foundation under Grant No. AST-0908789 and by NASA/Louisiana Board of Regents grant NNX07AT62A/LEQSF(2007-10) Phase3-02.

Affiliated with

Also associated with

No associations

Rating

Photometry, Spectroscopy, And Doppler Tomography Of The Eclipsing LMXB EXO 0748-676 = UY Vol 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 Photometry, Spectroscopy, And Doppler Tomography Of The Eclipsing LMXB EXO 0748-676 = UY Vol, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photometry, Spectroscopy, And Doppler Tomography Of The Eclipsing LMXB EXO 0748-676 = UY Vol will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1394639