The JCMT Plane Survey: first complete data release - emission maps and compact source catalogue
The JCMT Plane Survey: first complete data release - emission maps and compact source catalogue
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DOI：
10.1093/mnras/stx874
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发表时间：
2017-04
影响因子：
4.8
通讯作者：
D. Eden;T. Moore;R. Plume;J. Urquhart;M. Thompson;H. Parsons;J. Dempsey;A. Rigby;L. Morgan;H. Thomas;D. Berry;J. Buckle;C. Brunt;H. Butner;D. Carretero;A. Chrysostomou;M. Currie;H. deVilliers;M. Fich;A. Gibb;M. Hoare;T. Jenness;G. Manser;J. Mottram;C. Natário;F. Olguin;N. Peretto;M. Pestalozzi;D. Polychroni;R. O. Redman;C. Salji;L. J. Summers;K. Tahani;A. Traficante;J. Difrancesco;A. Evans;G. Fuller;D. Johnstone;D. Johnstone;G. Joncas;S. Longmore;P. Martin;J. Richer;B. Weferling;G. White;G. White;M. Zhu
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文献类型：
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作者：
D. Eden;T. Moore;R. Plume;J. Urquhart;M. Thompson;H. Parsons;J. Dempsey;A. Rigby;L. Morgan;H. Thomas;D. Berry;J. Buckle;C. Brunt;H. Butner;D. Carretero;A. Chrysostomou;M. Currie;H. deVilliers;M. Fich;A. Gibb;M. Hoare;T. Jenness;G. Manser;J. Mottram;C. Natário;F. Olguin;N. Peretto;M. Pestalozzi;D. Polychroni;R. O. Redman;C. Salji;L. J. Summers;K. Tahani;A. Traficante;J. Difrancesco;A. Evans;G. Fuller;D. Johnstone;D. Johnstone;G. Joncas;S. Longmore;P. Martin;J. Richer;B. Weferling;G. White;G. White;M. Zhu
我们提出的第一个数据发布的詹姆斯克拉克麦克斯韦望远镜平面调查（JPS），JPS公共发布1。JPS是一个850 μm的连续测量，测量银道内面北方经度范围l = 7°-63°的6个区域，使用亚毫米波普通用户测辐射热仪阵列2。第一次发布的数据包括六个JPS区域的发射图，平均像素到像素噪声为7.19 mJy beam-1，当在光束上平滑时，以及包含7813个源的紧凑源目录。星表95%的完整性极限估计为0.04 Jy光束-1和0.3 Jy峰值和积分通量密度分别。包含在致密源目录中的发射占总量的42 ± 5%，除了大尺度（大于8弧分）发射外，与500 μm赫歇尔图中的特征有很好的对应关系。我们发现，在二维匹配的情况下，在以l = 20°、30°、40°和50°为中心的场中，98% ± 2%的源与分子云有关，而在l = 30°和40°的场中，91% ± 3%的源与致密的分子团有关。将JPS星表与Herschel 70 μm源相匹配，我们发现38 ± 1%的源显示了正在进行的星星形成的证据。JPS第一次公开发布的图像和目录将是研究银河系中星星形成以及环境和旋臂在星星形成过程中的作用的宝贵资源。
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.