New maser lines of methanol

Journal Article · Tue Jan 01 04:00:00 EST 1985 · Astrophys. J., Lett. Ed.; (United States)

DOI:https://doi.org/10.1086/184411· OSTI ID:6026074

Morimoto, M; Ohishi, M; Kanzawa, T

We found that the 4/sub -//sub 1/--3/sub 0/ E line (36.169 GHz) of methanol (CH/sub 3/OH) is a maser in Sgr B2, with an antenna temperature of up to 60 K and a velocity width of approx.10 km s/sup -1/. This maser is spatially extended with angular size of up to 90'', is distributed along the edge of H II regions, and apparently is not directly attached to star forming regions. Components with a narrow velocity width also exist. They are unresolved by our beam and have a velocity width of <1.5 km s/sup -1/.

• Research Organization: Nobeyama Radio Observatory
• OSTI ID: 6026074
• Journal Information: Astrophys. J., Lett. Ed.; (United States), Journal Name: Astrophys. J., Lett. Ed.; (United States) Vol. 288:1; ISSN AJLEA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics &amp; Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALCOHOLS
AMPLIFIERS
COSMIC RADIO SOURCES
ELECTRONIC EQUIPMENT
EMISSION
ENERGY-LEVEL TRANSITIONS
EQUIPMENT
EXCITATION
H2 REGIONS
HYDROXY COMPOUNDS
INTERSTELLAR GRAINS
MASERS
METHANOL
MICROWAVE AMPLIFIERS
MICROWAVE EQUIPMENT
NEBULAE
ORGANIC COMPOUNDS
PARTICLES
RADIAL VELOCITY
VELOCITY