Nature of the nebula near. gamma. Cygni

Journal Article · Wed Nov 01 04:00:00 EST 1978 · Sov. Astron. AJ (Engl. Transl.); (United States)

OSTI ID:6034195

Bychkov, K V

The optical nebula near ..gamma.. Cyg is considered to result from the collision of radiatively cooling gas swept up by an expanding supernova remnant with a dense interstellar cloud. The collision would generate in the oncoming gas a bow shock whose hard radiation would ionize and heat the cloud. This process is analogous to the excitation of an H II zone, with the stationary shock front playing the role of the hot star. The model can reconcile the strong H..cap alpha.. emission of the nebula with the low gas velocities observed.

• Research Organization: Special Astrophysical Observatory, Academy of Sciences of the USSR
• OSTI ID: 6034195
• Journal Information: Sov. Astron. AJ (Engl. Transl.); (United States), Journal Name: Sov. Astron. AJ (Engl. Transl.); (United States) Vol. 22:6; ISSN SAAJA
• Country of Publication: United States
• Language: English

Related Subjects

640103 -- Astrophysics & Cosmology-- Quasi-Stellar
Radio
& X-Ray Sources-- (-1987)
640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BALMER LINES
COSMIC RADIO SOURCES
H2 REGIONS
INTERSTELLAR GRAINS
INTERSTELLAR SPACE
NEBULAE
PARTICLES
SHOCK WAVES
SPACE
SUPERNOVA REMNANTS