Publication Date:
2014-08-06
Description:
The United Kingdom Infrared Telescope (UKIRT) Widefield Infrared Survey for Fe + (UWIFE) is a 180 deg 2 imaging survey of the first Galactic quadrant (7° 〈 l 〈 62°; | b | 1 $_{.}^{\circ}$ 5) that uses a narrow-band filter centred on the [Fe ii ] 1.644-μm emission line. The [Fe ii ] 1.644-μm emission is a good tracer of dense, shock-excited gas, and the survey will probe violent environments around stars: star-forming regions, evolved stars, and supernova remnants, among others. The UWIFE survey is designed to complement the existing UKIRT Widefield Infrared Survey for H 2 (UWISH2). The survey will also complement existing broad-band surveys. The observed images have a nominal 5 detection limit of 18.7 mag for point sources, with a median seeing of 0.83 arcsec. For extended sources, we estimate a surface brightness limit of 8.1 10 –20 W m –2 arcsec –2 . In this paper, we present an overview and some preliminary results of this survey.
Print ISSN:
0035-8711
Electronic ISSN:
1365-2966
Topics:
Physics
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