4 papers · 1 filter
A new reddening for RR Tel from the HeII Paschen lines
Pierluigi Selvelli, Piercarlo Bonifacio
From the available STIS data of RR Tel, that have provided a coverage with absolutely calibrated data in a wide wavelength range, we have obtained a new determination of its redden…
UVES-VLT Observations of the OIII Bowen Lines in RR Tel
Pierluigi Selvelli, Piercarlo Bonifacio
The exceptional resolution of UVES has allowed the detection of weak spectral features and the separation of components in blended lines. The intensities of all of the OIII fluores…
First results of UVES at VLT: revisiting RR Tel
Pier Luigi Selvelli, Piercarlo Bonifacio
We present here the first results of UVES observations of RR Tel. The exceptional performances of the instrument have allowed the detection of new spectral features and have led to…
Photometry of Nova V 1493 Aql
Piercarlo Bonifacio, Pierluigi Selvelli, Elisabetta Caffau
We report on photometric observations of V 1493 Aql during the early decline and highlight some uncommon aspects of the light curve. V 1493 Aql was hotter at maximum light than in…