Dust Emission Spectra of the Nova V1112 Persei

Abstract

Abstract Infrared spectra of the dusty nova V1112 Persei (Nova Persei 2020) are presented from 29 and 48 days after the onset of dust formation, the later epoch corresponding to when obscuration by the nova dust was at a maximum. The dust emission was featureless and had temperatures of approximately 880 K and 690 K for the two epochs, respectively. Some dust formed along the line of sight and the total extinction for V1112 Per increased from E(B-V) = 0.8 prior to dust formation, to 1.2 on February 3, to 1.4 by February 22. Emission lines of both carbon and oxygen were present along with the dust emission indicating that the dust did not consume all of either of these element.