Eden, D. J.D. J.EdenMoore, T. J. T.T. J. T.MoorePlume, R.R.PlumeUrquhart, J. S.J. S.UrquhartThompson, M. A.M. A.ThompsonParsons, H.H.ParsonsDempsey, J. T.J. T.DempseyRigby, A. J.A. J.RigbyMorgan, L. K.L. K.MorganThomas, H. S.H. S.ThomasBerry, D.D.BerryBuckle, J.J.BuckleBrunt, C. M.C. M.BruntButner, H. M.H. M.ButnerCarretero, D.D.CarreteroChrysostomou, A.A.ChrysostomouCurrie, M. J.M. J.CurriedeVilliers, H. M.H. M.deVilliersFich, M.M.FichGibb, A. G.A. G.GibbHoare, M. G.M. G.HoareJenness, T.T.JennessManser, G.G.ManserMottram, J. C.J. C.MottramNatario, C.C.NatarioOlguin, F.F.OlguinPeretto, N.N.PerettoPestalozzi, M.M.PestalozziPolychroni, D.D.PolychroniRedman, R. O.R. O.RedmanSalji, C.C.SaljiSummers, L. J.L. J.SummersTahani, K.K.TahaniTraficante, A.A.TraficantediFrancesco, J.J.diFrancescoEvans, A.A.EvansFuller, G. A.G. A.FullerJohnstone, D.D.JohnstoneJoncas, G.G.JoncasLongmore, S. N.S. N.LongmoreMartin, P. G.P. G.MartinRicher, J. S.J. S.RicherWeferling, B.B.WeferlingWhite, G. J.G. J.WhiteZhu, M.M.Zhu2025-12-302025-12-3020171365-2966https://hdl.handle.net/20.500.12740/24154We present the first data release of the James Clerk Maxwell Telescope Plane Survey (JPS), the JPS Public Release 1. JPS is an 850-mu m continuum survey of six fields in the northern inner Galactic plane in a longitude range of l = 7 degrees - 63 degrees, 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-mu m Herschel maps. We find that, with two-dimensional matching, 98 +/- 2 per cent of sources within the fields centred at l = 20 degrees, 30 degrees, 40 degrees and 50. are associated with molecular clouds, with 91 +/- 3 per cent of the l = 30 degrees and 40 degrees sources associated with dense molecular clumps. Matching the JPS catalogue to Herschel 70-mu m 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.Acceso Abiertosurveysstars: formationISM: cloudssubmillimetre: ISMhttp://dx.doi.org/10.1093/mnras/stx874