Near-infrared spectroscopy of V1112 Per (Nova Per 2020)
ATel #14256; D. P. K. Banerjee (PRL, India), Melissa Shahbandeh (Florida State Univ.), C. E. Woodward, (University of Minnesota), A. Evans (Keele Univ.), Eric Hsiao (Florida State Univ.), Vishal Joshi (PRL, India)
on 9 Dec 2020; 18:38 UT
Credential Certification: Dipankar P.K. Banerjee (dpkb12345@gmail.com)
Subjects: Infra-Red, Nova
We report near infrared (NIR) spectroscopic measurements of V1112 Per (Nova Per 2020) obtained on 2020-12-02.6 UT from the NASA Infrared Telescope Facility at Mauna Kea, Hawaii. The observations, covering the wavelength range 0.7-2.5 microns, were acquired with the SpeX instrument in the cross-dispersed mode at R = 1200. The nova, discovered on UT 2020 Nov 25.813, showed prominent He lines early after outburst, a trait of the He/N class of novae, but transitioned soon thereafter into a typical Fe II nova (ATel #14229, #14230, #14243). The NIR spectrum reported here is typical of the Fe II type novae, displaying strong CI lines along with the other usual lines of HI, OI, NI and NaI. The HeI 1.083 micron line is weakly present. Most of the emission lines show strong P-Cygni absorption features. The observed FWHM of the emission component of the Paschen beta 1.2818 micron line is ~ 900 km/s while the separation between emission peak and the P Cyg absorption minimum is ~ 1200 km/s. Neither first overtone CO emission, nor any sign of dust formation, is seen as yet.
