Interstellar formaldehyde in Sagittarius B2

Journal Article · Sat Nov 01 04:00:00 EST 1980 · Sov. Astron. Lett. (Engl. Transl.); (United States)

OSTI ID:6440303

Gosachinskii, I V; Grachev, V G; Egorova, T M; Zhelenkov, S R; Il'in, G N; Komar, N P; Kurochkina, E N; Prozorov, V A; Ryzhkov, N F

The 6.2-cm absorption line of the H/sub 2/CO molecule has been observed with the RATAN-600 radio telescope at 0'.8 x 12' resolution. The distribution of H/sub 2/CO optical depth over the radio source Sgr B2 indicates that a gas envelope 11 pc in diameter may be present with a mean radial velocity nearly the same as the recombination-line velocities. The envelope is contracting, at a rate of 20--25 km/sec; it is also rotating at a peripheral velocity of roughly-equal15 km/sec.

• Research Organization: Leningrad Branch, Special Astrophysical Observatory, USSR Academy of Sciences, Pulkovo
• OSTI ID: 6440303
• Journal Information: Sov. Astron. Lett. (Engl. Transl.); (United States), Journal Name: Sov. Astron. Lett. (Engl. Transl.); (United States) Vol. 6:6; ISSN SALED
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION SPECTRA
ALDEHYDES
COSMIC RADIO SOURCES
DIAGRAMS
FORMALDEHYDE
INTERSTELLAR SPACE
OPTICAL DEPTH CURVE
ORGANIC COMPOUNDS
RADIAL VELOCITY
SPACE
SPECTRA
STAR EVOLUTION
VELOCITY