The infrared coronal lines of recent novae

Journal Article · Thu Mar 01 04:00:00 EST 1990 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/168537· OSTI ID:6865710

Greenhouse, M A; Grasdalen, G L; Woodward, C E; Benson, J; Gehrz, R D ^[1]

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1. Wyoming Infrared Observatory, Laramie (USA) Minnesota Univ., Minneapolis (USA)

IR coronal line emissions are reported in the novae V1819 Cyg and V827 Her; high-resolution near-IR spectra of coronal line emission in the nova QU Vul have also been obtained, increasing the number of known IR coronal line novae from two to four. Each of the four is found to be characterized by approximately the same Si VI/Si VII line-intensity ratio, which indicates a common coronal-zone electron temperature of 300,000 K. The coronal-line novae are noted to possess a remarkably similar near-IR spectrum, suggesting that their coronal line emission will only occasionally be observed at optical wavelengths. 51 refs.

• OSTI ID: 6865710
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 352; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATMOSPHERES
CHEMICAL COMPOSITION
ELECTROMAGNETIC RADIATION
ELECTRON TEMPERATURE
EMISSION SPECTRA
ERUPTIVE VARIABLE STARS
INFRARED RADIATION
INFRARED SPECTRA
NEAR INFRARED RADIATION
NOVAE
RADIATIONS
SPECTRA
SPECTROPHOTOMETRY
STARS
STELLAR ATMOSPHERES
VARIABLE STARS