Early spectral evolution of Nova Sgr 2004 (Ederoclite+, 2006)

Scritto in Pubblicazioni

Data files of FEROS observations are given with four digits (referring
to month and day of observation) and an "f" indicating that that is a
FEROS observation.

Data files of observations carried out at Cerro Tololo are named with
four digits (referring to month and day of observation) and a "t"
indicating that these are CTIO observations.

Observations carried out with the NIRIS instrument are given in three
dat files. Although they were carried out on a single night, for
uniformity with the rest of the files, these data files are named with
four digits (referring to…

continua

2003 AZ84

Scritto in Pubblicazioni

Available from the Minor Planet Center.
Available from the Minor Planet Center.

The Enigmatic Behaviour of the Old Nova RR Pic

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We report preliminary results of an observing run at the 1—m telescope
at CTIO during which we followed RR Pic over several nights in February
2005. The resulting light curves show no sign of an eclipse. Apart from
the 3.48 h period, which is usually interpreted as the orbital one, we
find an additional period at P=3.78 h, which we interpret as the
superhump period of the system. We furthermore present high resolution
Doppler maps in Hα, Hβ and He II, which we derived from
observations at the NTT, La Silla in February 2004. They show strong
variations in the emission distribution from one…

continua

2003 EG

Scritto in Pubblicazioni

Available from the Minor Planet Center.
Available from the Minor Planet Center.