Infrared Observations of GEHRs (Giant Extragalactic HII Regions)

Details Infrared Observations of GEHRs (Giant Extragalactic HII Regions) Infrared Observations of GEHRs (Giant Extragalactic HII Regions)

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aas...191.8210h&link_type=abstract

American Astronomical Society, 191st AAS Meeting, #82.10; Bulletin of the American Astronomical Society, Vol. 29, p.1344

Astronomy and Astrophysics

Astronomy

Scientific paper

Prelimary results of a study of star formation in giant extragalactic HII regions in 3 galaxies (NGC 2903, M 61, and NGC 4449) in the near (1-5mu m) infrared are given. Broadband images as well as Brgamma (n = 7->4, 2.166mu m) hydrogen recombination line and adjacent narrow-band continuum images, at a plate scale of ~ 0.3arcsec per pixel (spatial resolution ~ 1arcsec ) are presented and comparison is made to previous optical BVR continuum and Hα observations. Brgamma emission is detected from two of the galaxies, NGC 2903 and M 61, while an upper limit is reported for the third. Where applicable, extinction estimates from the hydrogen recombination line emission are made.

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