Early spectral evolution of Nova Sagittarii 2004 (V5114 Sagittarii)

Aims.We present optical and near-infrared spectral evolution of the Galactic nova <ASTROBJ>V5114 Sgr</ASTROBJ> (2004) during few months after the outburst.<BR /> Methods: .We use multi-band photometry and line intensities derived from spectroscopy to put constrains on the distance and the physical conditions of the ejecta of V5114 Sgr.<BR /> Results: .The nova showed a fast decline (t<SUB>2</SUB> ≃ 11 days) and spectral features of Fe II spectroscopic class. It reached M<SUB>V</SUB> = -8.7 ± 0.2 mag at maximum light, from which we derive a distance of 7700 ± 700 kpc and a distance...

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

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 month and day of...

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2003 AZ84

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

The Enigmatic Behaviour of the Old Nova RR Pic

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...

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