Star formation in the NGC 7129 region - A CO molecular-line and far-infrared continuum study

Details Star formation in the NGC 7129 region - A CO molecular-line and far-infrared continuum study Star formation in the NGC 7129 region - A CO molecular-line and far-infrared continuum study

Dec 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...226..439b&link_type=abstract

Astrophysical Journal, Part 1, vol. 226, Dec. 1, 1978, p. 439-441, 443-454.

Astronomy and Astrophysics

Astronomy

54

Far Infrared Radiation, Infrared Astronomy, Nebulae, Star Formation, Astronomical Maps, Carbon Monoxide, Early Stars, Interstellar Gas, Molecular Spectra

Scientific paper

Results are presented for a joint radio/IR study of the region around NGC 7129, a reflection nebula seen against a large dark cloud. The results reported include high-angular-resolution (C-12)O and (C-13)O line measurements, high-angular-resolution observations in the range from 35 to 200 microns, and observations at 10 to 20 microns of selected objects in the nebula. Important constraints are placed on the total stellar luminosities, dust densities and temperatures, and heating and cooling processes occurring in the nebula. Specifically, it is found that: (1) the (C-13)O and dust column densities increase significantly from west to east across the nebula; (2) the (C-13)O column density in the vicinity of the two brightest visible stars decreases relative to the column density north and south of those stars; (3) kinetic temperature increases along the whole boundary of the nebulosity; and (4) the strongest far-IR source in NGC 7129 is coincident with the pre-main-sequence star LkH-alpha 234.

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