University of Hertfordshire

From the same journal

From the same journal

By the same authors

UWISH2-the UKIRT Widefield Infrared Survey for H-2

Research output: Contribution to journalLiterature review

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  • 905371

    Accepted author manuscript, 531 KB, PDF document

  • D. Froebrich
  • C. J. Davis
  • G. Ioannidis
  • M. Takami
  • A. Chrysostomou
  • J. Drew
  • J. Eisloeffel
  • A. Gosling
  • R. Gredel
  • J. Hatchell
  • K. W. Hodapp
  • M. S. N. Kumar
  • H. Matthews
  • M. G. Rawlings
  • M. D. Smith
  • B. Stecklum
  • W. P. Varricatt
  • H. T. Lee
  • P. S. Teixeira
  • C. Aspin
  • T. Khanzadyan
  • J. Karr
  • H. -J. Kim
  • B. -C. Koo
  • J. J. Lee
  • Y. -H. Lee
  • T. Y. Magakian
  • T. A. Movsessian
  • E. H. Nikogossian
  • T. S. Pyo
  • T. Stanke
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Original languageEnglish
Number of pages13
Pages (from-to)480-492
JournalMonthly Notices of the Royal Astronomical Society
Journal publication dateMay 2011
Volume413
Issue1
DOIs
Publication statusPublished - May 2011

Abstract

We present the goals and preliminary results of an unbiased, near-infrared, narrow-band imaging survey of the first galactic quadrant (10 degrees < l < 65 degrees; -1<file name="mnr_18149_mu1.gif" type="gif"/>3 < b < +1<file name="mnr_18149_mu2.gif" type="gif"/>3). 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 H-2, 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 5 Sigma detection limit of point sources of K similar to 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.

Notes

The definitive version can be found at : http://onlinelibrary.wiley.com/ Copyright Wiley-Blackwell

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