IRAS and optical observations of the high-latitude dust cloud LYNDS 1642

Details IRAS and optical observations of the high-latitude dust cloud LYNDS 1642 IRAS and optical observations of the high-latitude dust cloud LYNDS 1642

Oct 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...184..269l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 184, no. 1-2, Oct. 1987, p. 269-278. ZWO-supported research.

Astronomy and Astrophysics

Astronomy

58

Cosmic Dust, Infrared Astronomy Satellite, Interstellar Extinction, Nebulae, Radiative Transfer, Albedo, Infrared Radiation

Scientific paper

Relationships between infrared brightness, optical brightness, and extinction are studied in order to investigate the properties of dust in L1642. Good correlation is found between the optical surface brightness I(opt) and the 100-micron surface brightness, and the observed relationship between I(opt) and the optical depth at 100 microns is shown to be described by a model of radiative transfer in the cloud. Strong infrared signals at 12 and 25 microns are found to be emitted from L 1642. Good qualitative agreement between the photographic and the 100-micron surface brightness distributions over the cloud area is also found.

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