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VV Pup in a low state: secondary-star irradiation or stellar activity?
Elena Mason, Steve B. Howell, Travis Barman +2
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 irradia…
Milliarcsecond angular resolution of reddened stellar sources in the vicinity of the Galactic Center
A. Richichi, O. Fors, E. Mason +2
For the first time, the lunar occultation technique has been employed on a very large telescope in the near-IR with the aim of achieving systematically milliarcsecond resolution on…
Transient Heavy Element Absorption Systems in Novae: Episodic Mass Ejection from the Secondary Star
Robert Williams, Elena Mason, Massimo Della Valle +1
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 veloci…
Life on the fast lane: the burst mode at the VLT at present and in the future
A. Richichi, O. Fors, E. Mason +3
The recent implementation of the high-speed burst mode at the ISAAC instrument on UT1, and its propagation to other ESO instruments, has opened the door to observational capabiliti…
Standard stars for linear polarization
L. Fossati, S. Bagnulo, E. Mason +1
We present the analysis of the observations of standard stars for linear polarization obtained from 1999 to 2005 within the context of the calibration plan of the FORS1 instrument…
High Resolution Spectra of Novae and the Quadratic Zeeman Effect
Robert Williams, Elena Mason
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 me…