The early stages of NOVA Oph 2003 (V2573 Oph)

Free access article

Issue		A&A Volume 411, Number 2, November IV 2003


Page(s)		L461 - L464
Section		Letters
DOI		http://dx.doi.org/10.1051/0004-6361:20031419

A&A 411, L461-L464 (2003)
DOI: 10.1051/0004-6361:20031419

Letter

The early stages of NOVA Oph 2003 (V2573 Oph)

S. Kimeswenger and M. F. M. Lechner

Institut für Astrophysik der Universität Innsbruck, Technikerstr. 25, 6020 Innsbruck, Austria
(Received 4 August 2003 / Accepted 12 September 2003)

Abstract
Intermediate resolution spectroscopy of NOVA Oph 2003 (V2573 Oph), which was first detected March 21 ${\rm th}$ 2003 but reported July 19 ${\rm th}$ 2003, obtained 19 ${\rm th}$ to 23 ${\rm rd}$ of July is presented here. The photometry during the early phases of the object is shortly discussed. We also retrieved very accurate astrometry of the target in this crowded field. This is needed to be able to do further observations of the post-nova during the next years. The inspection of the sky survey plates gives a possible progenitor candidate and allows to derive a lower limit for the outburst magnitude of about 10 $\fm$ 0. The spectrum shows an overall expansion of 2200 km s ^-1 and has clearly complex outflow substructures. The spectroscopy identifies this object as classical nova, "Fe II" subclass.

Key words: stars: novae -- stars: individual: NOVA Oph2003 = V2573 Oph

Offprint request: S. Kimeswenger, stefan.kimeswenger@uibk.ac.at

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