The JCMT Plane Survey: First complete data release - emission maps and compact source catalogue
Abstract
We present the first data release of the James Clerk Maxwell Telescope (JCMT) Plane Survey (JPS), the JPS Public Release 1 (JPSPR1). JPS is an 850-um continuum survey of six fields in the northern inner Galactic Plane in a longitude range of l=7-63, made with the Sub-millimetre Common-User Bolometer Array 2 (SCUBA-2). This first data release consists of emission maps of the six JPS regions with an average pixel-to-pixel noise of 7.19 mJy beam^-1, when smoothed over the beam, and a compact-source catalogue containing 7,813 sources. The 95 per cent completeness limits of the catalogue are estimated at 0.04 Jy beam^-1 and 0.3 Jy for the peak and integrated flux densities, respectively. The emission contained in the compact-source catalogue is 42 +- 5 per cent of the total and, apart from the large-scale (greater than 8') emission, there is excellent correspondence with features in the 500-um Herschel maps. We find that, with two-dimensional matching, 98 +- 2 per cent of sources within the fields centred at l=20, 30, 40 and 50 are associated with molecular clouds, with 91 +- 3 per cent of the l=30 and 40 sources associated with dense molecular clumps. Matching the JPS catalogue to Herschel 70-um sources, we find that 38 +- 1 per cent of sources show evidence of ongoing star formation. The images and catalogue will be a valuable resource for studies of star formation in the Galaxy and the role of environment and spiral arms in the star formation process.
Cite
@article{arxiv.1704.02982,
title = {The JCMT Plane Survey: First complete data release - emission maps and compact source catalogue},
author = {D. J. Eden and T. J. T. Moore and R. Plume and J. S. Urquhart and M. A. Thompson and H. Parsons and J. T. Dempsey and A. J. Rigby and L. K. Morgan and H. S. Thomas and D. Berry and J. Buckle and C. M. Brunt and H. M. Butner and D. Carretero and A. Chrysostomou and M. J. Currie and H. M. deVilliers and M. Fich and A. G. Gibb and M. G. Hoare and T. Jenness and G. Manser and J. C. Mottram and C. Natario and F. Olguin and N. Peretto and M. Pestalozzi and D. Polychroni and R. O. Redman and C. Salji and L. J. Summers and K. Tahani and A. Traficante and J. diFrancesco and A. Evans and G. A. Fuller and D. Johnstone and G. Joncas and S. N. Longmore and P. G. Martin and J. S. Richer and B. Weferling and G. J. White and M. Zhu},
journal= {arXiv preprint arXiv:1704.02982},
year = {2017}
}
Comments
22 pages, 18 figures, 4 tables. Full version of Table 3 available from http://www.canfar.phys.uvic.ca/vosui/#/JPSPR1 Accepted for publication in Monthly Notices of the Royal Astronomical Society