Infrared studies of the Herbig-Haro object 1-2 region

Details Infrared studies of the Herbig-Haro object 1-2 region Infrared studies of the Herbig-Haro object 1-2 region

Feb 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...301..346h&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 301, Feb. 1, 1986, p. 346-354.

Astronomy and Astrophysics

Astrophysics

49

Herbig-Haro Objects, Infrared Spectra, Interstellar Matter, Molecular Clouds, Pre-Main Sequence Stars, Stellar Spectra, Astronomical Maps, Continuous Spectra, Far Infrared Radiation, Near Infrared Radiation, Stellar Evolution

Scientific paper

Far-infrared (50 - 100 μm) photometric mapping and near-infrared spectroscopic mapping of the Herbig-Haro (HH) 1-2 region are presented. Both lobes of the double-lobed far-infrared source in this region are found to be nearly coincident with recently discovered radio continuum sources. Near-infrared spectroscopic maps made at 2.12 μm (Δλ = 0.06 μm) and 2.2 μm (Δλ = 0.5 μm) reveal widespread molecular hydrogen emission [υ = 1→0, S(1)] associated with the optical nebulae HH 1, HH 2, and in a region between the two HH sources. In addition, there is probably some scattered continuum visible near and southeast of the Cohen-Schwartz star. The data are consistent with a picture in which each far-infrared lobe contains a highly obscured young star surrounded by a highly nonspherically symmetric dust cloud. The direction of the temperature gradients, however, are such that some heating by the Cohen-Schwartz star and/or the HH nebulae themselves is not ruled out.

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