Smith, A. J. and Bock, J. and Cooray, A. and Dowell, C. D. and Zemcov, M. (2012) HerMES: point source catalogues from deep Herschel-SPIRE observations. Monthly Notices of the Royal Astronomical Society, 419 (1). pp. 377-389. ISSN 0035-8711 http://resolver.caltech.edu/CaltechAUTHORS:20120224-154058470
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We describe the generation of single-band point source catalogues from submillimetre Herschel-SPIRE observations taken as part of the Science Demonstration Phase of the Herschel Multi-tiered Extragalactic Survey (HerMES). Flux densities are found by means of peak finding and the fitting of a Gaussian point-response function. With highly confused images, careful checks must be made on the completeness and flux-density accuracy of the detected sources. This is done by injecting artificial sources into the images and analysing the resulting catalogues. Measured flux densities at which 50 per cent of injected sources result in good detections at (250, 350 and 500) μm range from (11.6, 13.2 and 13.1) to (25.7, 27.1 and 35.8) mJy, depending on the depth of the observation (where a ‘good’ detection is taken to be one with positional offset less than one full-width half-maximum of the point-response function, and with the measured flux density within a factor of 2 of the flux density of the injected source). This paper acts as a reference for the 2010 July HerMES public data release.
|Additional Information:||© 2011 The Authors. Monthly Notices of the Royal Astronomical Society © 2011 RAS. Accepted 2011 August 25. Received 2011 August 25; in original form 2011 January 17. Article first published online: 6 Oct 2011. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA. SPIRE has been developed by a consortium of institutes led by Cardiff University (UK) and including the University of Lethbridge (Canada); NAOC (China); CEA, LAM (France); IFSI, the University of Padua (Italy); IAC (Spain); Stockholm Observatory (Sweden); Imperial College London, RAL, UCL-MSSL, UKATC, the University of Sussex (UK); Caltech, JPL, NHSC, the University of Colorado (USA). This development has been supported by national funding agencies: CSA (Canada); NAOC (China); CEA, CNES, CNRS (France); ASI (Italy); MCINN (Spain); SNSB (Sweden); STFC (UK) and NASA (USA). The released HerMES data are available through the HeDaM data base (http://hedam.oamp.fr), operated by CeSAM and hosted by the Laboratoire d’Astrophysique de Marseille. Data presented in this paper were analysed using HIPE, a joint development by the Herschel Science Ground Segment Consortium, consisting of ESA, the NASA Herschel Science Center and the HIFI, PACS and SPIRE consortia. (See http://herschel.esac.esa. int/DpHipeContributors.shtml.) We acknowledge support from the Science and Technology Facilities Council (grant numbers ST/F002858/1 and ST/I000976/1. We are grateful to the anonymous referee for helpful and constructive comments.|
|Subject Keywords:||methods: data analysis; catalogues; galaxies: photometry; submillimetre: galaxies|
|Official Citation:||Smith, A. J., Wang, L., Oliver, S. J., Auld, R., Bock, J., Brisbin, D., Burgarella, D., Chanial, P., Chapin, E., Clements, D. L., Conversi, L., Cooray, A., Dowell, C. D., Eales, S., Farrah, D., Franceschini, A., Glenn, J., Griffin, M., Ivison, R. J., Mortier, A. M. J., Page, M. J., Papageorgiou, A., Pearson, C. P., Pérez-Fournon, I., Pohlen, M., Rawlings, J. I., Raymond, G., Rodighiero, G., Roseboom, I. G., Rowan-Robinson, M., Savage, R., Scott, D., Seymour, N., Symeonidis, M., Tugwell, K. E., Vaccari, M., Valtchanov, I., Vigroux, L., Ward, R., Wright, . and Zemcov, M. (2012), HerMES: point source catalogues from deep Herschel-SPIRE observations. Monthly Notices of the Royal Astronomical Society, 419: 377–389. doi: 10.1111/j.1365-2966.2011.19709.x|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Ruth Sustaita|
|Deposited On:||27 Feb 2012 17:54|
|Last Modified:||07 Nov 2012 23:35|
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