HELP: the Herschel Extragalactic Legacy Project

被引：71

作者：

Shirley, R. ^{[1
,2
,3
]}

Duncan, K. ^{[4
,5
]}

Varillas, M. C. Campos ^{[1
]}

Hurley, P. D. ^{[1
]}

Roehlly, Y. ^{[1
,7
]}

Smith, M. W. L. ^{[8
]}

Aussel, H. ^{[9
]}

Bakx, T. ^{[8
,10
,11
]}

Buat, V ^{[7
,12
]}

Burgarella, D. ^{[7
]}

Christopher, N. ^{[13
]}

Duivenvoorden, S. ^{[1
]}

Eales, S. ^{[8
]}

Efstathiou, A. ^{[13
]}

Solares, E. A. Gonzalez ^{[3
]}

Griffin, M. ^{[8
]}

Jarvis, M. ^{[14
,15
]}

Lo Faro, B. ^{[7
]}

Marchetti, L. ^{[15
,16
,17
]}

McCheyne, I ^{[1
]}

Papadopoulos, A. ^{[13
]}

Penner, K. ^{[9
]}

Pons, E. ^{[3
,7
]}

Prescott, M. ^{[15
,18
]}

Rigby, E. ^{[4
]}

Rottgering, H. ^{[4
]}

Saxena, A. ^{[4
,19
]}

Scudder, J. ^{[1
,20
]}

Vaccari, M. ^{[15
,17
,18
]}

Wang, L. ^{[21
,22
]}

Oliver, S. J. ^{[1
]}

Malek, K. ^{[6
,7
]}

机构：

[1] Univ Sussex, Astron Ctr, Dept Phys & Astron, Brighton BN1 9QH, E Sussex, England

[2] Univ Southampton, Astron Ctr, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England

[3] Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England

[4] Leiden Univ, Sterrewacht Leiden, NL-2300 RA Leiden, Netherlands

[5] Royal Observ, Blackford Hill, Edinburgh EH9 3HJ, Midlothian, Scotland

[6] Natl Ctr Nucl Res, Ul Pasteura 7, PL-02093 Warsaw, Poland

[7] Aix Marseille Univ, LAM, CNES, CNRS, F-13004 Marseille, France

[8] Cardiff Univ, Sch Phys & Astron, Queens Bldg, Cardiff CF24 3AA, Wales

[9] Univ Paris, Lab AIM Paris Saclay, CE Saclay, CEA DSM Irfu CNRS, F-91190 St Aubin, France

[10] Nagoya Univ, Grad Sch Sci, Div Particle & Astrophys Sci, Nagoya, Aichi 4648602, Japan

[11] Natl Astron Observ Japan, 2-2-1-1 Osawa, Mitaka, Tokyo 1818588, Japan

[12] Inst Univ France IUF, F-75231 Paris, France

[13] European Univ Cyprus, Sch Sci, CY-1516 Nicosia, Cyprus

[14] Univ Oxford, Dept Phys, Astrophys, Keble Rd, Oxford OX1 3RH, England

[15] Univ Western Cape, Dept Phys & Astron, ZA-7535 Cape Town, South Africa

[16] Univ Cape Town, Dept Astron, ZA-7701 Cape Town, South Africa

[17] INAF Ist Radioastron, Via Gobetti 101, I-40129 Bologna, Italy

[18] Univ Western Cape, Interuniv Inst Data Intens Astron, ZA-7535 Cape Town, South Africa

[19] UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England

[20] Oberlin Coll, Dept Phys & Astron, Oberlin, OH 44074 USA

[21] SRON Netherlands Inst Space Res, NL-9747 AD Groningen, Netherlands

[22] Univ Groningen, Kapteyn Astron Inst, Postbus 800, NL-9700 AV Groningen, Netherlands

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2021年 / 507卷 / 01期

关键词：

techniques: photometric; Astronomical databases: catalogues; surveys; galaxies: evolution; infrared: galaxies; submillimetre: galaxies; ACTIVE GALACTIC NUCLEI; STAR-FORMING GALAXIES; DEEP FIELD-SOUTH; SQUARES IMAGE ESTIMATION; LY-ALPHA EMITTERS; X-RAY SOURCES; REDSHIFT SURVEY; PHOTOMETRIC REDSHIFTS; SPECTROSCOPIC SURVEY; OPTICAL SPECTROSCOPY;

D O I：

10.1093/mnras/stab1526

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the Herschel Extragalactic Legacy Project (HELP). This project collates, curates, homogenizes, and creates derived data products for most of the premium multiwavelength extragalactic data sets. The sky boundaries for the first data release cover 1270 deg(2) defined by the Herschel SPIRE extragalactic survey fields; notably the Herschel Multi-tiered Extragalactic Survey (HerMES) and the Herschel Atlas survey (H-ATLAS). Here, we describe the motivation and principal elements in the design of the project. Guiding principles are transparent or 'open' methodologies with care for reproducibility and identification of provenance. A key element of the design focuses around the homogenization of calibration, meta data, and the provision of information required to define the selection of the data for statistical analysis. We apply probabilistic methods that extract information directly from the images at long wavelengths, exploiting the prior information available at shorter wavelengths and providing full posterior distributions rather than maximum-likelihood estimates and associated uncertainties as in traditional catalogues. With this project definition paper, we provide full access to the first data release of HELP; Data Release 1 (DR1), including a monolithic map of the largest SPIRE extragalactic field at 385 deg(2) and 18 million measurements of PACS and SPIRE fluxes. We also provide tools to access and analyse the full HELP data base. This new data set includes far-infrared photometry, photometric redshifts, and derived physical properties estimated from modelling the spectral energy distributions over the full HELP sky. All the software and data presented is publicly available.

引用

页码：129 / 155

页数：27

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