Spectroscopic confirmation of the 2023 outburst of M31N 2008-12a
ATel #16367; Judhajeet Basu (IIA), Sudhanshu Barway (IIA), G. C. Anupama (IIA), Shatakshi Chamoli (IIA), S. Pramod Kumar (IIA)
on 7 Dec 2023; 07:57 UT
Distributed as an Instant Email Notice Novae
Credential Certification: Sudhanshu Barway (sudhanshu.barway@iiap.res.in)
We obtained an optical spectrum of the recurrent nova M31N 2008-12a during its ongoing (2023) outburst (ATel #16365, #16364, #16362, #16361, AT2023yvj) with the low-resolution HFOSC instrument mounted on the 2-m Himalayan Chandra Telescope (HCT) of the Indian
Astronomical Observatory (IAO), Hanle. The spectrum was obtained on 2023 Dec 06.582 in the wavelength range of 3500-7500 A with an exposure of 2700s.
The spectrum shows prominent H-Balmer lines and the He I line at 5876 A. The FWHM of the H alpha line indicates a velocity of 3000 km/s. The spectrum is similar to the previous outbursts.
We will continue monitoring the nova using facilities at IAO.
We thank the HCT observers for sparing time to carry out the ToO observations. IAO is operated by the Indian Institute of Astrophysics, Bengaluru, India.
