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, 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). 2163 -2183.

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Abstract

We present the first data release of the James Clerk Maxwell Telescope Plane Survey (JPS), the JPS Public Release 1. JPS is an 850-μm continuum survey of six fields in the northern inner Galactic plane in a longitude range of ℓ = 7°–63°, made with the Submillimetre Common-User Bolometer Array 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 7813 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 arcmin) emission, there is excellent correspondence with features in the 500-μm 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-μm sources, we find that 38 ± 1 per cent of sources show evidence of ongoing star formation. The JPS Public Release 1 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 ©: 2017 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
Uncontrolled Keywords: surveys, stars, formation, ISM, clouds, submillimetre, ISM
Subjects: Q Science > QB Astronomy
Divisions: Faculty of Natural Sciences > School of Physical and Geographical Sciences
Related URLs:
Depositing User: Symplectic
Date Deposited: 24 Aug 2017 13:59
Last Modified: 19 Mar 2019 12:01
URI: http://eprints.keele.ac.uk/id/eprint/3944

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