Over half of the far-infrared background light comes from galaxies at z ≥ 1.2

被引:151
作者
Devlin, Mark J. [1 ]
Ade, Peter A. R. [2 ]
Aretxaga, Itziar [3 ]
Bock, James J. [4 ]
Chapin, Edward L. [5 ]
Griffin, Matthew [2 ]
Gundersen, Joshua O. [6 ]
Halpern, Mark [5 ]
Hargrave, Peter C. [2 ]
Hughes, David H. [3 ]
Klein, Jeff [1 ]
Marsden, Gaelen [5 ]
Martin, Peter G. [7 ,8 ]
Mauskopf, Philip [2 ]
Moncelsi, Lorenzo [2 ]
Netterfield, Calvin B. [8 ,9 ]
Ngo, Henry [5 ]
Olmi, Luca [10 ,11 ]
Pascale, Enzo [2 ]
Patanchon, Guillaume [12 ]
Rex, Marie [1 ]
Scott, Douglas [5 ]
Semisch, Christopher [1 ]
Thomas, Nicholas [6 ]
Truch, Matthew D. P. [1 ]
Tucker, Carole [2 ]
Tucker, Gregory S. [13 ]
Viero, Marco P. [8 ]
Wiebe, Donald V. [9 ]
机构
[1] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA
[2] Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales
[3] Inst Nacl Astrofis Opt & Electr, Puebla, Mexico
[4] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
[5] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada
[6] Univ Miami, Dept Phys, Coral Gables, FL 33146 USA
[7] Univ Toronto, Canadian Inst Theoret Astrophys, Toronto, ON M5S 3H8, Canada
[8] Univ Toronto, Dept Astron & Astrophys, Toronto, ON M5S 3H4, Canada
[9] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada
[10] Univ Puerto Rico, Dept Phys, Rio Piedras, PR 00931 USA
[11] INAF Osservatorio Astrofis Arcetri, I-50125 Florence, Italy
[12] Univ Paris Diderot, Lab APC, F-75205 Paris, France
[13] Brown Univ, Dept Phys, Providence, RI 02912 USA
基金
英国科学技术设施理事会; 美国国家科学基金会; 加拿大自然科学与工程研究理事会;
关键词
DEGREE EXTRAGALACTIC SURVEY; DEEP SUBMILLIMETER SURVEY; FIELD-SOUTH SURVEY; NUMBER COUNTS; SOURCE CATALOGS; STAR-FORMATION; HIGH-REDSHIFT; LOCKMAN HOLE; SPITZER; CHANDRA;
D O I
10.1038/nature07918
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Submillimetre surveys during the past decade have discovered a population of luminous, high-redshift, dusty starburst galaxies(1-8). In the redshift range 1 <= z <= 4, these massive submillimetre galaxies go through a phase characterized by optically obscured star formation at rates several hundred times that in the local Universe. Half of the starlight from this highly energetic process is absorbed and thermally re-radiated by clouds of dust at temperatures near 30 K with spectral energy distributions peaking at 100 mu m in the rest frame(9). At 1 <= z <= 4, the peak is redshifted to wavelengths between 200 and 500 mu m. The cumulative effect of these galaxies is to yield extragalactic optical and far-infrared backgrounds with approximately equal energy densities. Since the initial detection of the far-infrared background (FIRB)(10), higher-resolution experiments have sought to decompose this integrated radiation into the contributions from individual galaxies. Here we report the results of an extragalactic survey at 250, 350 and 500 mu m. Combining our results at 500 mu m with those at 24 mu m, we determine that all of the FIRB comes from individual galaxies, with galaxies at z >= 1.2 accounting for 70% of it. As expected, at the longest wavelengths the signal is dominated by ultraluminous galaxies at z > 1.
引用
收藏
页码:737 / 739
页数:3
相关论文
共 28 条
  • [1] Abergel A, 1996, ASTRON ASTROPHYS, V308, pL5
  • [2] Submillimetre-wavelength detection of dusty star-forming galaxies at high redshift
    Barger, AJ
    Cowie, LL
    Sanders, DB
    Fulton, E
    Taniguchi, Y
    Sato, Y
    Kawara, K
    Okuda, H
    [J]. NATURE, 1998, 394 (6690) : 248 - 251
  • [3] The Hubble Deep Field North SCUBA Super-map -: I.: Submillimetre maps, sources and number counts
    Borys, C
    Chapman, S
    Halpern, M
    Scott, D
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2003, 344 (02) : 385 - 398
  • [4] CONFUSION AND FLUX-DENSITY ERROR DISTRIBUTIONS
    CONDON, JJ
    [J]. ASTROPHYSICAL JOURNAL, 1974, 188 (02) : 279 - 286
  • [5] The SCUBA half-degree extragalactic survey -: II.: Submillimetre maps, catalogue and number counts
    Coppin, K.
    Chapin, E. L.
    Mortier, A. M. J.
    Scott, S. E.
    Borys, C.
    Dunlop, J. S.
    Halpern, M.
    Hughes, D. H.
    Pope, A.
    Scott, D.
    Serjeant, S.
    Wagg, J.
    Alexander, D. M.
    Almaini, O.
    Aretxaga, I.
    Babbedge, T.
    Best, P. N.
    Blain, A.
    Chapman, S.
    Clements, D. L.
    Crawford, M.
    Dunne, L.
    Eales, S. A.
    Edge, A. C.
    Farrah, D.
    Gaztanaga, E.
    Gear, W. K.
    Granato, G. L.
    Greve, T. R.
    Fox, M.
    Ivison, R. J.
    Jarvis, M. J.
    Jenness, T.
    Lacey, C.
    Lepage, K.
    Mann, R. G.
    Marsden, G.
    Martinez-Sansigre, A.
    Oliver, S.
    Page, M. J.
    Peacock, J. A.
    Pearson, C. P.
    Percival, W. J.
    Priddey, R. S.
    Rawlings, S.
    Rowan-Robinson, M.
    Savage, R. S.
    Seigar, M.
    Sekiguchi, K.
    Silva, L.
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2006, 372 (04) : 1621 - 1652
  • [6] The SCUBA HAlf degree extragalactic survey -: VI.: 350-μm mapping of submillimetre galaxies
    Coppin, Kristen
    Halpern, Mark
    Scott, Douglas
    Borys, Colin
    Dunlop, James
    Dunne, Loretta
    Ivison, Rob
    Wagg, Jeff
    Aretxaga, Itziar
    Battistelli, Elia
    Benson, Andrew
    Blain, Andrew
    Chapman, Scott
    Clements, Dave
    Dye, Simon
    Farrah, Duncan
    Hughes, David
    Jenness, Tim
    van Kampen, Eelco
    Lacey, Cedric
    Mortier, Angela
    Pope, Alexandra
    Priddey, Robert
    Serjeant, Stephen
    Smail, Ian
    Stevens, Jason
    Vaccari, Mattia
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2008, 384 (04) : 1597 - 1610
  • [7] The cosmic infrared background resolved by Spitzer -: Contributions of mid-infrared galaxies to the far-infrared background
    Dole, H
    Lagache, G
    Puget, JL
    Caputi, KI
    Fernández-Conde, N
    Le Floc'h, E
    Papovich, C
    Pérez-González, PG
    Rieke, GH
    Blaylock, M
    [J]. ASTRONOMY & ASTROPHYSICS, 2006, 451 (02) : 417 - 429
  • [8] Far-infrared source counts at 70 and 160 microns in Spitzer deep surveys
    Dole, H
    Le Floc'h, E
    Pérez-González, PG
    Papovich, C
    Egami, E
    Lagache, G
    Alonso-Herrero, A
    Engelbracht, CW
    Gordon, KD
    Hines, DC
    Krause, O
    Misselt, KA
    Morrison, JE
    Rieke, GH
    Rieke, MJ
    Rigby, JR
    Young, ET
    Bai, L
    Blaylock, M
    Neugebauer, G
    Beichman, CA
    Frayer, DT
    Mould, JR
    Richards, PL
    [J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2004, 154 (01) : 87 - 92
  • [9] The Canada-UK deep submillimeter survey. IV. The survey of the 14 hour field
    Eales, S
    Lilly, S
    Webb, T
    Dunne, L
    Gear, W
    Clements, D
    Yun, M
    [J]. ASTRONOMICAL JOURNAL, 2000, 120 (05) : 2244 - 2268
  • [10] Eddington AS, 1939, MON NOT R ASTRON SOC, V100, P0353