Published October 1, 1986 | Version v1
Journal article Metadata-only

Observations of H2O masers in nearby galaxies

Creators

  • 1. Commonwealth Scientific and Industrial Research Organization, Epping (Australia). Div. of Radiophysics

Description

The 64-m radio telescope at Parkes has been used over a period of three years to search for 22-G HzH2O maser emission in the Magellanic Clouds and other nearby galaxies. In observations towards about 80 H II regions of the Large Magellanic Cloud, only four masers were detected. Comparison with H2O observations towards H II regions in our Galaxy suggests that the maser production is considerably lower in the LMC, perhaps indicating a lower rate of star formation. Three of the maser profiles are similar, consisting of several variable components, 1-2km s-1 wide, spread over about 20km s-1. In contrast, the fourth maser has a double-peaked profile similar to those of OH masers associated with circumstellar shells. (author)

Additional details

Publishing Information

Journal Title
Mon. Not. R. Astron. Soc.
Journal Volume
222
Journal Issue
3
Series
Mon. Not. R. Astron. Soc.
Journal Page Range
513-523
ISSN
0035-8711
CODEN
MNRAA

INIS

Country of Publication
United Kingdom
Country of Input or Organization
United Kingdom
INIS RN
18025620
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
EXPERIMENTAL DATA; GALAXIES; GHZ RANGE 01-100; H2 REGIONS; LINE WIDTHS; LUMINOSITY; MAGELLANIC CLOUDS; MASERS; RADIOWAVE RADIATION; WATER VAPOR
Descriptors DEC
AMPLIFIERS; COSMIC RADIO SOURCES; DATA; ELECTROMAGNETIC RADIATION; ELECTRONIC EQUIPMENT; EQUIPMENT; FLUIDS; FREQUENCY RANGE; GASES; GHZ RANGE; INFORMATION; MICROWAVE AMPLIFIERS; MICROWAVE EQUIPMENT; NUMERICAL DATA; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; RADIATIONS; VAPORS