The Spectroscopic Classes of M31N 2007-12a and M31N 2007-12b

Details The Spectroscopic Classes of M31N 2007-12a and M31N 2007-12b The Spectroscopic Classes of M31N 2007-12a and M31N 2007-12b

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007atel.1332....1s&link_type=abstract

The Astronomer's Telegram, #1332

Other

5

Optical, Novae, Transients

Scientific paper

Spectra (410-950 nm) of two recent M31 nova candidates, M31N 2007-12a and M31N 2007-12b (ATel #1324), obtained on 2007 December 15.2 UT with the 9.2m Hobby-Eberly Telescope (+ Marcario Low-Resolution Spectrograph) by M. Shetrone and A. Westfall, confirms that both objects are indeed classical novae. The spectrum of M31N 2007-12a is characterized by strong Balmer and Fe II emission lines (FWHM H&alpha ~ 1700 km/s), while the spectrum of M31N 2007-12b on the other hand displays strong and broad (FWHM H&alpha ~ 4500 km/s) Balmer, He I, and N III 464.0 nm emission features.

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