Millimeter emission lines in Orion A

Journal Article · Mon Nov 01 04:00:00 EST 1976 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/154774· OSTI ID:7330072

Lovas, F J; Johnson, D R; Buhl, D; Snyder, L E

During the course of a search of Orion A for signals from three large, organic molecules, several millimeter wave lines from known interstellar molecules were observed. Results of observations on methanol (CH/sub 3/OH), methyl cyanide (CH/sub 3/CN), methyl acetylene (CH/sub 3/CCH), acetaldehyde (CH/sub 3/CHO) and /sup 29/SiO are reported here. Emission signals from two hydrogen recombination lines (H41..cap alpha.. and H42..cap alpha..) detected from the H II region of Orion A are also reported. Negative results were obtained for several millimeter wave transitions of ethylene oxide (CH/sub 2/OCH/sub 2/), acetone ((CH/sub 3/)/sub 2/CO), and cyclopropenone (HCCOCH). (AIP)

• Research Organization: National Bureau of Standards
• OSTI ID: 7330072
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 209:3; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACETALDEHYDE
ALCOHOLS
ALDEHYDES
BALMER LINES
CHEMICAL COMPOSITION
CHEMISTRY
COSMIC RADIO SOURCES
COSMOCHEMISTRY
ELECTROMAGNETIC RADIATION
EMISSION SPECTRA
ENERGY-LEVEL TRANSITIONS
H2 REGIONS
HYDROXY COMPOUNDS
INTERSTELLAR SPACE
METHANOL
ORGANIC COMPOUNDS
RADIATIONS
RADIOWAVE RADIATION
SPACE
SPECTRA