Published September 1989 | Version v1
Report Metadata-only

H53α emission from M82

Creators

  • 1. Edinburgh Univ. (UK). Dept. of Astronomy
  • 2. Royal Observatory, Edinburgh (UK)
  • 3. Nobeyama Radio Observatory, (Japan)

Description

The first detection of H53α emission from another galaxy has been made. At the frequency of this transition (43 GHz) spontaneous emission dominates and dust extinction can be completely ignored. The inferred photo-ionization rate is NLyC = 1.1 x 1054 s-1; a factor of 5 larger than estimates based on large-aperture Brα observations due to significant dust attenuation at 4 μm. Together with other data, this high value of the ionization rate has important implications for the allowed mass-range of stars present

Part of:
Infrared Spectroscopy in astronomy

Additional details

Publishing Information

Imprint Title
Infrared Spectroscopy in astronomy
Imprint Pagination
613 p.
Journal Page Range
p. 521-524.
Report number
ESA-SP--290

Conference

Title
22. ESLAB Symposium on infrared spectroscopy in astronomy.
Dates
7-9 Dec 1988.
Place
Salamanca (Spain).

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
21088869
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
EMISSION SPECTRA; GALAXIES; HYDROGEN; INFRARED RADIATION; RECOMBINATION; STAR EVOLUTION
Descriptors DEC
ELECTROMAGNETIC RADIATION; ELEMENTS; NONMETALS; RADIATIONS; SPECTRA

Optional Information