Open AccessCarbon Monoxide Emission and Spectra Prior to Dust Formation of the Nova V606 Vulpeculae
Author(s) -
R. J. Rudy,
Amanda J. Bayless,
John P. Subasavage
Publication year - 2022
Publication title -
research notes of the aas
Language(s) - English
Resource type - Journals
ISSN - 2515-5172
DOI - 10.3847/2515-5172/ac53b4
Subject(s) - nova (rocket) , carbon monoxide , spectral line , astrophysics , emission spectrum , physics , infrared , chemistry , astronomy , organic chemistry , aeronautics , engineering , catalysis
Visible and infrared spectra, from two, widely separated epochs, are presented for the nova V606 Vulpeculae. The first, acquired 7 days after the nova reached maximum light, displayed emission from carbon monoxide plus a wealth of low excitation atomic lines characterisic of an Fe ii -type novae early in its spectral development. The second, from 80 days later and after additional mass ejection, provided a spectral snapshot of a nova just prior to dust formation. It also was dominated by emission lines of mostly neutral atomic species, many of which included P-Cygni components. However, no spectral features from any molecules were detected, leaving in question what constituted the building blocks of the dust grains that formed shortly thereafter.