Imaging X-ray observations and the temperature structure of the Cygnus Loop

Journal Article · Sat Dec 01 04:00:00 EST 1979 · Astrophys. J., Lett. Ed.; (United States)

DOI:https://doi.org/10.1086/183118· OSTI ID:5543483

Tuohy, I R; Nousek, J A; Garmire, G P

Imaging X-ray observations of the northeast portion of the Cygnus Loop (NGC 6992) reveal that X-ray emission extends 5' beyond the optical filaments. Comparison with (Fe XIV) lambda5303 measurements across the emitting shell (Woodgate et al.) is consistent with a temperature gradient across the shell from 10/sup 6.1/ K (outside) to 10/sup 6.3/ (inside). Both X-ray and (Fe XIV) intensity and spatial structure can be explained by a Sedov adiabatic blast wave with a shock velocity of 290 +- 15 km s/sup -1/.

• Research Organization: California Institute of Technology
• OSTI ID: 5543483
• Journal Information: Astrophys. J., Lett. Ed.; (United States), Journal Name: Astrophys. J., Lett. Ed.; (United States) Vol. 234:2; ISSN AJLEA
• Country of Publication: United States
• Language: English

Related Subjects

640103* -- Astrophysics & Cosmology-- Quasi-Stellar
Radio
& X-Ray Sources-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABUNDANCE
ATOMIC IONS
CHARGED PARTICLES
CHEMICAL COMPOSITION
CHEMISTRY
COSMIC RADIO SOURCES
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
COSMOCHEMISTRY
EMISSIVITY
IONS
IRON IONS
NEBULAE
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
SHOCK WAVES
SPECTRA
SUPERNOVA REMNANTS
SURFACE PROPERTIES
TELESCOPE COUNTERS
X-RAY SPECTRA