H2 spectroscopy as an agent for extinction determinations The near-infrared curve for the Orion molecular cloud

Details H2 spectroscopy as an agent for extinction determinations The near-infrared curve for the Orion molecular cloud H2 spectroscopy as an agent for extinction determinations The near-infrared curve for the Orion molecular cloud

May 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...304..481d&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 304, May 1, 1986, p. 481-489.

Astronomy and Astrophysics

Astrophysics

20

Astronomical Spectroscopy, Hydrogen Clouds, Interstellar Extinction, Molecular Clouds, Near Infrared Radiation, Orion Nebula, High Resolution, Spectral Resolution

Scientific paper

A near-infrared (1.8 μm ≤ λ ≤ 3.5 μm) extinction curve for the Orion molecular cloud is presented. The curve is derived from high-resolution spectra of the Orion H2 source recorded from the Kuiper Airborne Observatory. The data reveal that the Orion extinction law is indistinguishable from a λ-1 form in the near-infrared, except for strongly enhanced extinction near λ ≡ 3 μm. The implications of these results, in the context of current interstellar grain models, are discussed.

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