High-resolution 1.5-5 micron spectroscopy of the Becklin-Neugebauer source in Orion

Details High-resolution 1.5-5 micron spectroscopy of the Becklin-Neugebauer source in Orion High-resolution 1.5-5 micron spectroscopy of the Becklin-Neugebauer source in Orion

Jul 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...223l..47h&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 223, July 1, 1978, p. L47-L50.

Astronomy and Astrophysics

Astronomy

68

Early Stars, Infrared Astronomy, Interstellar Matter, Stellar Evolution, Stellar Spectra, Absorption Spectra, Astronomical Spectroscopy, Carbon Monoxide, Doppler Effect, Fourier Transformation, H Ii Regions, H Lines, High Resolution, Spectrum Analysis, Standard Deviation, Stellar Models

Scientific paper

High-resolution 1.5- to 5-micron spectra of the Becklin-Neugebauer source in Orion exhibit both Brackett-alpha and Brackett-gamma emission localized within 1.4 arcsec of the continuum source as well as CO absorption arising in the obscuring molecular cloud. The data support the hypothesis that BN is a young B0 or B1 star surrounded by a compact H II region and an expanding dust envelope. The object is apparently driving massive supersonic expansion of the surrounding cloud material (the radio 'plateau' source) into OMC-1.

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