CASSOWARY 20: a Wide Separation Einstein Cross Identified with the X-shooter Spectrograph (2009)
Pettini, Max, Christensen, Lise, D'Odorico, Sandro, Belokurov, Vasily, Evans, N. Wyn, Hewett, Paul C., ...
We have used spectra obtained with X-shooter, the triple arm optical-infrared spectrograph recently commissioned on the Very Large Telescope (VLT) of the European Southern Observatory (ESO), to...
The Structure of Novae Ejecta: Implications for the Outburst (2009)
Williams, Robert, Mason, Elena
The spectral evolution of novae provides information on the physical conditions, kinematics, and geometry of the ejecta after outburst. We present spectroscopic evidence for the existence of two...
VV Pup in a low state: secondary-star irradiation or stellar activity? (2008)
Mason, Elena, Howell, Steve B., Barman, Travis, Szkody, Paula, Wickramasinghe, Dayal
Aims. Emission lines in polars show complex profiles with multiple components that are typically ascribed to the accretion stream, threading region, accretion spot, and the irradiated secondary-star....
Williams, Robert, Mason, Elena, Della Valle, Massimo, Ederoclite, Alessandro
A high-resolution spectroscopic survey of postoutburst novae reveals short-lived heavy element absorption systems in a majority of novae near maximum light, having expansion velocities of 400-1000...
High resolution spectra of novae and the quadratic zeeman effect (2006)
High resolution spectra of novae and the quadratic zeeman effect
High Resolution Spectra of Novae and the Quadratic Zeeman Effect (2006)
Williams, Robert, Mason, Elena
High resolution spectra of novae after outburst reveal distinctive characteristics in the line profiles and intensities. The higher Balmer lines are often broader than the lower members of the...
High resolution spectra of novae and the quadratic zeeman effect (2006)
Mason, Elena, Williams, Robert
Los espectros de alta resolución de novas después de las erupciones revelan características distintivas en los per les e intensidades de las léneas. Las léneas de Balmer más altas son...
Thesis (Ph. D.)--University of Wyoming, 2001.