Spectroscopic identification of two M31 novae
ATel #4216; Y. Cao (Caltech) and M. M. Kasliwal (Carnegie Institute for Science & Princeton University)
on 26 Jun 2012; 22:36 UT
Credential Certification: Yi Cao (firstname.lastname@example.org)
We obtained spectra of two recent M31 nova candidates with the Dual Imaging Spectrograph
mounted on the ARC-3.5m telescope at Apache Point Observatory on 2012 June 26 UT.
PNV J00432192+4120244 (ATel #4186), also designated internally as PTF12fsf, shows a nebular
spectrum with strong Balmer series, O I 7773, O I 8227 and O I 8446, N I 8212 and N I 8692,
Fe II (37, 38, 42) emission lines. The Halpha has a FWHM of about 1,800 km/s. This spectrum
confirms that PTF12fsf is a M31 nova of Fe II type.
PNV J00423707+4122160 (ATel #4205), which is designated internally as PTF12fyz, consists of a
very weak continuum spectrum superposed by strong Halpha and weak Hbeta emission as
well as O I 7773, O I 8227 and O I 8446 and Fe II (73) emission lines. The Halpha has a FWHM of
about 1,500 km/s. The O I lines show P-Cygni profiles. Therefore, we tentatively classify
PTF12fyz as a Fe II type nova in M31.