UWISH2 - the UKIRT Widefield Infrared Survey for H2

Froebrich, Dirk and Davis, Chris J. and Ioannidis, G. and Gledhill, T. M. and Takami, M. and Chrysostomou, A and Drew, Janet E. and Eisloffel, Jochen and Gosling, Amanda and Gredel, Roland and Hatchell, Jennifer and Hodapp, Klaus W. and Kumar, M S N and Lucas, P.W. and Matthews, H. and Rawlings, M. G. and Smith, Michael D. and Stecklum, Bringfried and Varricatt, W. P. and Lee, H. T. and Teixeira, P. S. and Aspin, Colin and Khanzadyan, Tigran and Karr, J. and Kim, Hyun-Jeong and Koo, B. C. and Lee, J.J and Lee, Y.H and Magakian, Tigran Yu. and Movsessian, Tigran and Nikogossian, Elena H. and Pyo, Tae-Soo and Stanke, T (2011) UWISH2 - the UKIRT Widefield Infrared Survey for H2. Monthly Notices of the Royal Astronomical Society, 413 (1). pp. 480-492. ISSN 0035-8711. (doi:https://doi.org/10.1111/j.1365-2966.2010.18149.x) (Full text available)

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http://dx.doi.org/10.1111/j.1365-2966.2010.18149.x

Abstract

We present the goals and preliminary results of an unbiased, near-infrared, narrow-band imaging survey of the first galactic quadrant (10° < l < 65°; −1Graphic3 < b < +1Graphic3). This area includes most of the giant molecular clouds and massive star forming regions in the Northern hemisphere. The survey is centred on the 1–0 S(1) rovibrational line of H2, a proven tracer of hot, dense molecular gas in star-forming regions, around evolved stars, and in supernova remnants. The observations complement existing and upcoming photometric surveys (Spitzer-GLIMPSE, UKIDSS-GPS, JCMT-JPS, AKARI, Herschel Hi-GAL, etc.), though we probe a dynamically active component of star formation not covered by these broad-band surveys. Our narrow-band survey is currently more than 60 per cent complete. The median seeing in our images is 0.73 arcsec. The images have a 5σ detection limit of point sources of K∼ 18 mag and the surface brightness limit is 10−19 W m−2 arcsec−2 when averaged over our typical seeing. Jets and outflows from both low- and high-mass young stellar objects are revealed, as are new planetary nebulae and – via a comparison with earlier K-band observations acquired as a part of the UKIDSS GPS – numerous variable stars. With their superior spatial resolution, the UWISH2 data also have the potential to reveal the true nature of many of the extended green objects found in the GLIMPSE survey.

Item Type: Article
Additional information: Froebrich is the PI of this major UKIRT survey and was thus responsible for organizing observational campaigns, creating data bases and analyzing the data. Froebrich formed and led the UWISH2collaboetion and this paper presents the collaboration objectives and first results. Froebrich wrote, edited and revised the paper. ; number of additional authors: 32;
Uncontrolled keywords: stars: formation, ISM: individual objects: Galactic Plane, ISM: jets and outflows, ISM: kinematics and dynamics, infrared: stars
Subjects: Q Science > QB Astronomy
Divisions: Faculties > Sciences > School of Physical Sciences > Centre for Astrophysics and Planetary Sciences
Depositing User: Stewart Brownrigg
Date Deposited: 07 Mar 2014 00:05 UTC
Last Modified: 07 Dec 2018 09:57 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/40501 (The current URI for this page, for reference purposes)
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