The Compact H II Region S88B: Excitation and Extinction

Details The Compact H II Region S88B: Excitation and Extinction The Compact H II Region S88B: Excitation and Extinction

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003apj...599.1173g&link_type=abstract

The Astrophysical Journal, Volume 599, Issue 2, pp. 1173-1188.

Astronomy and Astrophysics

Astronomy

4

Ism: Dust, Extinction, Ism: H Ii Regions, Infrared: Stars, Ism: Individual: Alphanumeric: S88B, Stars: Formation

Scientific paper

We have undertaken an investigation into the excitation of, and dust extinction to, the massive star formation region S88B. Studying stellar properties of the wide-field Two Micron All Sky Survey (2MASS) J (1.23 μm), H (1.65 μm), and Ks (2.16 μm) images, we have determined the extent of, and extinction to, the molecular cloud associated with the ultracompact H II regions S88B-1 and S88B-2 and with a newly described infrared H II region. Infrared observations of Brγ and Brα hydrogen recombination lines provide extinction maps to the infrared H II region, and 3.3 and 3.4 μm images show the polycyclic aromatic hydrocarbon (PAH) emission distribution. We also report the detection of an infrared counterpart to S88B-2.

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