J/MNRAS/417/2239 SPIRE (f250um>17.4mJy) GOODS-N galaxies (Symeonidis+, 2011)
Herschel/HerMES: the X-ray-infrared correlation for star-forming galaxies
at z ∼ 1.
Symeonidis M., Georgakakis A., Seymour N., Auld R., Bock J., Brisbin D.,
Buat V., Burgarella D., Chanial P., Clements D.L., Cooray A., Eales S.,
Farrah D., Franceschini A., Glenn J., Griffin M., Hatziminaoglou E.,
Ibar E., Ivison R.J., Mortier A.M.J., Oliver S.J., Page M.J.,
Papageorgiou A., Pearson C.P., Perez-Fournon I., Pohlen M., Rawlings J.I.,
Raymond G., Rodighiero G., Roseboom I.G., Rowan-Robinson M., Scott D.,
Smith A.J., Tugwell K.E., Vaccari M., Vieira J.D., Vigroux L., Wang L.,
Wright G.
<Mon. Not. R. Astron. Soc., 417, 2239-2252 (2011)>
=2011MNRAS.417.2239S 2011MNRAS.417.2239S
ADC_Keywords: Galaxies, IR ; X-ray sources ; Millimetric/submm sources
Keywords: galaxies: general - galaxies: high-redshift - galaxies: starburst -
infrared: galaxies - X-rays: galaxies
Abstract:
For the first time, we investigate the X-ray/infrared (IR) correlation
for star-forming galaxies (SFGs) at z∼1, using SPIRE submm data
from the recently launched Herschel Space Observatory and deep X-ray
data from the 2-Ms Chandra Deep Field-North survey. We examine the
X-ray/IR correlation in the soft X-ray (SX; 0.5-2keV) and hard
X-ray (HX; 2-10keV) bands by comparing our z∼1 SPIRE-detected
SFGs to equivalently IR-luminous (LIR>1010L☉) samples in the
local/low-redshift Universe.
Description:
The IR data come from the Herschel/SPIRE Science Demonstration Phase
(SDP) observations of the Great Observatories Origins Deep Survey
(GOODS)-North, taken as part of the Herschel Multi-tiered
Extragalactic Survey (HerMES) guaranteed-time key programme.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 117 84 SPIRE sample of 84 SPIRE-detected, submm-bright
(f250um>17.4mJy) galaxies in the GOODS-N field,
observed as part of the Herschel/HerMES survey
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Seq [1/84] Sequential number,
[SGS2011] NN in Simbad
4- 12 F9.5 deg RAdeg IRAS 3.6um right ascension in decimal
degrees (J2000)
14- 21 F8.5 deg DEdeg IRAS 3.6um declination in decimal
degrees (J2000)
23- 26 F4.2 --- z ?=- Spectroscopic redshift (available only
for 67 sources)
28- 32 F5.2 [Lsun] logLIR ?=- Total IR luminosity (8-1000um)
34- 38 A5 --- --- [hdfn-]
39- 41 I3 --- HDF-N ? Cross-matched ID from the IC catalogue of
Hubble Deep Field-North (HDF-N) Chandra data
43 A1 --- l_FSX Limit flag on FSX (3σ limit)
44- 51 E8.3 mW/m2 FSX Flux in the soft band (0.5-2keV)
53 A1 --- l_FHX Limit flag on FHX (3σ limit)
54- 61 E8.3 mW/m2 FHX Flux in the hard band (2-7keV)
63- 67 F5.2 [10-7W] logLSX ? Luminosity in soft band (0.5-2keV)
69- 73 F5.2 [10-7W] logLHX ? Luminosity in hard band (2-7keV)
75- 79 F5.2 --- HR ? Hardness ratio, (H-S)/(H+S)
81- 84 F4.2 --- E_HR ? Error on HR (upper value)
86- 89 F4.2 --- e_HR ? Error on HR (lower value)
91- 95 F5.2 --- FHX/FR ? fHX/fR ratio used to identify AGN (1)
97-100 F4.2 --- E_FHX/FR ? Error on FHX/FR (upper value)
102-105 F4.2 --- e_FHX/FR ? Error on FHX/FR (lower value)
107-113 A7 --- Class Spectral class (2)
115-117 A3 --- XClass X-ray class (3)
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Note (1): FHX/FR ratio used to identify AGN (see Section 2.4), computed for
sources which are detected in both the R-band and the hard X-rays. Note that,
although we provide the corresponding HDF-N X-ray ID from the IC catalogue,
the fluxes and upper limits we present here are all derived using the
IRAC 3.6-um position of each SPIRE source to extract counts from the X-ray
map down to a Poisson significance <3x10-3 - see Section 2.2 for details.
Note (2): refers to the classification of the source by optical spectroscopy
(Barger et al. 2005ARA&A..43..827B 2005ARA&A..43..827B; Trouille et al. 2008, J/ApJS/179/1),
as follows:
SFG = star forming galaxy, sources with strong Balmer lines and no broad or
high-ionization lines
HEL AGN = high excitation line AGN, sources with [NeV] or CIV lines or
strong [OIII] lines, i.e. EW([OIII]λ5007)>3EW(Hβ)
BL AGN = broad-line AGN, sources with FWHM linewidths greater than 2000km/s
Note that the Trouille et al. (2008, Cat. J/ApJS/179/1) classification
applies only to X-ray sources. Where there is no information available, the
spectrum could not be classified.
Note (3): refers to whether the source is a star-forming galaxy (SFG) or
AGN-dominated in the X-rays, according to the criteria outlined in
Section 2.4. The three ambiguous sources (labelled 'Amb') are included in the
SFG subsample, but our conclusions do not change if instead they are included
in the AGN subsample.
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 01-Jun-2012