Access to Astronomical Catalogues

← Click to display the menu
J/other/Nat/458.737   BLAST sources at 250, 350 and 500um    (Devlin+, 2009)

Over half of the far-infrared background light comes from galaxies at z∼1.2. Devlin M.J., Ade P.A.R., Aretxaga I., Bock J.J., Chapin E.L., Griffin M., Gundersen J.O., Halpern M., Hargrave P.C., Martin P.G., Mauskopf P., Moncelsi L., Netterfield C.B., Ngo H., Olmi L., Pascale E., Patanchon G., Rex M., Scott D., Semisch C., Thomas N., Truch M.D.P., Tucker C., Tucker G.S., Viero M.P., Wiebe D. <Nature, 458, 737-739 (2009)> =2009Natur.458..737D
ADC_Keywords: Millimetric/submm sources Abstract: Submillimetre surveys during the past decade have discovered a population of luminous, high-redshift, dusty starburst galaxies. In the redshift range 1 less than or equal to z less than or equal to 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 30K with spectral energy distributions peaking at 100um in the rest frame. At 1 less than or equal to z less than or equal to 4, the peak is redshifted to wavelengths between 200 and 500um. 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), 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 500um. Combining our results at 500 mum with those at 24um, we determine that all of the FIRB comes from individual galaxies, with galaxies at z greater than or equal to 1.2 accounting for 70% of it. As expected, at the longest wavelengths the signal is dominated by ultraluminous galaxies at z>1. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tables2.dat 97 1756 *Source list 1. Sources at 250um tables3.dat 97 1440 *Source List 2. Sources at 350um tables4.dat 97 1111 *Source List 3. Sources at 500um
Note on tables2.dat: BLASTgoods-s2006-12-21cat2502008-11-243sigbid.dat Note on tables3.dat: BLASTgoods-s2006-12-21cat3502008-11-243sigbid.dat Note on tables4.dat: BLASTgoods-s2006-12-21cat5002008-11-243sigbid.dat
See also: J/ApJ/681/428 : BLAST sources in Galactic plane survey (Chapin+, 2008) J/ApJ/703/285 : Radio and 24um BLAST counterparts in CDFS (Dye+, 2009) J/ApJ/707/1779 : BLAST: the redshift survey (Eales+, 2009) J/ApJS/191/222 : BLAST observations of the SEP field (Valiante+, 2010) J/MNRAS/411/505 : BLAST/LABOCA obs. in Extended Chandra DFS (Chapin+, 2011) Byte-by-byte Description of file: tables2.dat tables3.dat tables4.dat
Bytes Format Units Label Explanations
1- 5 A5 --- --- [BLAST] 7- 20 A14 --- BLAST BLAST name (JHHMMSS+DDMMSS) 22 A1 --- --- [(] 23- 25 I3 um Band Observed band (250, 350 or 500) 26- 28 A3 --- --- [um)] 30- 38 F9.4 pix Xpos X position 40- 48 F9.4 pix Ypos Y position 50- 58 F9.6 deg RAdeg Right ascension in decimal degrees (J2000) 60- 69 F10.6 deg DEdeg Declination in decimal degrees (J2000) 71- 78 F8.6 Jy Flux Flux in the observed band 80- 87 F8.6 Jy Noise Noise 89- 97 F9.6 --- S/N Signal-to-noise ratio
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 02-Nov-2011
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service

© UDS/CNRS

Contact