High-velocity, nonradiative shock emission in Kepler's supernova remnant

Journal Article · Wed Mar 01 04:00:00 EST 1989 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/185389· OSTI ID:6225171

Fesen, R A; Becker, R H; Blair, W P; Long, K S

Optical spectra of faint emission along the northern limb of Kepler's supernova remnant (SN 1604) show only H-alpha and H-beta line emissions over the spectral range 4700-7000 A. The detected H-alpha emission consists of a broad component and a narrow, unresolved component. The observational data suggests the presence of Balmer-dominated, or nonradiative, emission associated with the remnant's high-velocity shocks. Nonradiative shock models are used to interpret the width of the broad component and the flux ratio of the broad to narrow components. The shock velocity is estimated at 1670-2800 km/s. 29 refs.

• Research Organization: Colorado, University, Boulder; California, University, Davis; Lawrence Livermore National Laboratory, Livermore; Johns Hopkins University, Baltimore, MD
• OSTI ID: 6225171
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 338; ISSN ASJOA
• 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
BALMER LINES
COSMIC RADIO SOURCES
DATA PROCESSING
EMISSION SPECTRA
FILTERS
MATHEMATICAL MODELS
OPTICAL FILTERS
PROCESSING
SHOCK WAVES
SPECTRA
SUPERNOVA REMNANTS
VISIBLE SPECTRA
WAVE PROPAGATION