Absolute spectrophotometry and photometric evolution of Nova Scuti 2005 N.1 (≡ V476 Sct)

Details Absolute spectrophotometry and photometric evolution of Nova Scuti 2005 N.1 (≡ V476 Sct) Absolute spectrophotometry and photometric evolution of Nova Scuti 2005 N.1 (≡ V476 Sct)

Jul 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006mnras.369.1755m&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 369, Issue 4, pp. 1755-1759.

Astronomy and Astrophysics

Astronomy

5

Novae: Cataclysmic Variables, Novae, Cataclysmic Variables

Scientific paper

Our CCD photometry of Nova Scuti 2005 N.1 shows it to be a fast nova, characterized by t2 = 15 and t3 = 28d, affected by an E(B - V) ~ 1.9 mag reddening, appearing at a position (±0.04 arcsec) (+/-0.09 arcsec, J2000) and peaking at V ~ 11.1 mag on ~September 28.1 UT. Absolute spectrophotometry places it within the FeII class. The profile of emission lines is characterized by a double peak with a velocity separation of 690 kms-1 and a width at half intensity of 1200 kms-1. The distance to the nova is 4 +/- 1 kpc, and its height above the Galactic plane is z = 80 +/- 20 pc. The highly crowded field affects a possible identification of the progenitor, whose pre-outburst magnitude should, however, have been 22 < V < 25 mag, thus below the limit of photographic surveys. A deep B V RCIC photometric sequence is provided to support continued observations of the advanced decline phases.

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