Eden, DJ, Moore, TJT, Plume, R, Urquhart, JS, Thompson, MA, Parsons, H, Dempsey, JT, Rigby, AJ, Morgan, LK, Thomas, HS et al (show 35 more authors)
(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.
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 |
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Uncontrolled Keywords: | surveys, stars: formation, ISM: clouds, submillimetre: ISM |
Depositing User: | Symplectic Admin |
Date Deposited: | 25 Sep 2017 07:30 |
Last Modified: | 19 Jan 2023 06:54 |
DOI: | 10.1093/mnras/stx874 |
Open Access URL: | https://arxiv.org/pdf/1704.02982.pdf |
Related URLs: | |
URI: | https://livrepository.liverpool.ac.uk/id/eprint/3009585 |