Published March 10, 2016 | Version v1
Journal article Metadata-only

An OH(1720 MHZ) Maser and a nonthermal radio source INSGR B2(M): An SNR–molecular cloud interaction site?

Creators

  • 1. CIERA, Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208 (United States)
  • 2. National Radio Astronomy Observatory, Charlottesville, VA 22903 (United States)
  • 3. Department of Physics and Astronomy, Macquarie University, Sydney, NSW 2109 (Australia)
  • 4. Leiden Observatory, Leiden University, P.O. Box 9513, NL-2300 RA Leiden (Netherlands)

Description

Sgr B2 is a well-known star-forming molecular cloud complex in the Galactic center region showing evidence of high energy activity as traced by the Kα neutral Fe i line at 6.4 keV, as well as GeV and TeV γ-ray emission. Here, we present Very Large Array and GMRT observations with respective resolutions of ≈ 3.''5 x 1.''2 and 25'' x 25'' and report the detection of an OH(1720 MHz) maser, with no accompanying OH 1665, 1667, and 1612 MHz maser emission.

Availability note (English)

Available from http://dx.doi.org/10.3847/2041-8205/819/2/L35

Additional details

Identifiers

DOI
10.3847/2041-8205/819/2/L35;

Publishing Information

Journal Title
Astrophysical Journal Letters
Journal Volume
819
Journal Issue
2
Journal Page Range
[6 p.]
ISSN
2041-8205

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
51039749
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
CLOUDS; COSMIC RADIATION; DETECTION; GALAXIES; GEV RANGE; INTERACTIONS; KEV RANGE; MASERS; MOLECULES; RESOLUTION; STARS; SUPERNOVA REMNANTS; TEV RANGE
Descriptors DEC
AMPLIFIERS; COSMIC RADIO SOURCES; ELECTRONIC EQUIPMENT; ENERGY RANGE; EQUIPMENT; IONIZING RADIATIONS; MICROWAVE AMPLIFIERS; MICROWAVE EQUIPMENT; RADIATIONS