Eden, DJ, Moore, TJT, Plume, R, Urquhart, JS, Thompson, MA, Parsons, H, Dempsey, JT, Rigby, AJ, Morgan, LK, Thomas, HS, Berry, D, Buckle, J, Brunt, CM, Butner, HM, Carretero, D, Chrysostomou, A, Currie, MJ, deVilliers, HM, Fich, M, Gibb, AG et al, Hoare, MG, Jenness, T, Manser, G, Mottram, JC, Natario, C, Olguin, F, Peretto, N, Pestalozzi, M, Polychroni, D, Redman, RO, Salji, C, Summers, LJ, Tahani, K, Traficante, A, diFrancesco, J, Evans, A, Fuller, GA, Johnstone, D, Joncas, G, Longmore, SN, Martin, PG, Richer, JS, Weferling, B, White, GJ and Zhu, M (2017) The JCMT Plane Survey: First complete data release - emission maps and compact source catalogue. Monthly Notices of the Royal Astronomical Society, 469 (2). pp. 2163-2183. ISSN 0035-8711

Preview

Text stx874.pdf - Published Version Download (21MB) | Preview

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.

Item Type:	Article
Additional Information:	This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society Published by Oxford University Press on behalf of the Royal Astronomical Society.
Uncontrolled Keywords:	astro-ph.GA; astro-ph.GA
Subjects:	Q Science > QB Astronomy
Divisions:	Astrophysics Research Institute
Publisher:	Oxford University Press
Related URLs:	http://arxiv.org/abs/1704.02982v1
Date Deposited:	13 Apr 2017 13:30
Last Modified:	21 Mar 2022 11:42
DOI or ID number:	10.1093/mnras/stx874
URI:	https://researchonline.ljmu.ac.uk/id/eprint/6262

View Item