Astronomy and Astrophysics – Astronomy
Scientific paper
May 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...354..701c&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 354, May 10, 1990, p. 701-707.
Astronomy and Astrophysics
Astronomy
24
Herbig-Haro Objects, Infrared Astronomy Satellite, Infrared Spectra, Pre-Main Sequence Stars, Stellar Spectra, Stellar Temperature, Bolometers, Emission Spectra, Flux Density, Histograms, Spectral Resolution, Stellar Luminosity
Scientific paper
Using IRAS COADDed images, candidates are suggested for the exciting stars of Herbig-Haro objects from the Reipurth and Graham sample. The IRAS low-resolution spectrometer provides spectra for 20 of the 46 candidate stars so far identified as exciting young, unevolved H-H systems. These reveal 10-micron silicate absorption features, or are too red to show detectable flux near 10 microns. The histogram of bolometric luminosities for 46 young Herbig-Haro exciting stars has a median of 13 solar luminosities and a mode between 16 and 32 solar luminosities. Although the enlarged sample of known exciting stars has more of the higher luminosity objects than an earlier sample, the histogram still represents a generally low-luminosity distribution.
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