J/ApJ/774/68 [CII]157.7um feature in LIRGs (Diaz-Santos+, 2013)
Explaining the [C II]157.7 µm deficit in luminous infrared galaxies -
First results from a Herschel/PACS study of the GOALS sample.
Diaz-Santos T., Armus L., Charmandaris V., Stierwalt S., Murphy E.J.,
Haan S., Inami H., Malhotra S., Meijerink R., Stacey G., Petric A.O.,
Evans A.S., Veilleux S., van der Werf P.P., Lord S., Lu N., Howell J.H.,
Appleton P., Mazzarella J.M., Surace J.A., Xu C.K., Schulz B.,
Sanders D.B., Bridge C., Chan B.H.P., Frayer D.T., Iwasawa K.,
Melbourne J., Sturm E.
<Astrophys. J., 774, 68 (2013)>
=2013ApJ...774...68D 2013ApJ...774...68D
ADC_Keywords: Galaxies, IR ; Spectra, infrared
Keywords: galaxies: ISM; galaxies: nuclei; galaxies: starburst;
infrared: galaxies
Abstract:
We present the first results of a survey of the [CII]157.7µm
emission line in 241 luminous infrared galaxies (LIRGs) comprising the
Great Observatories All-sky LIRG Survey (GOALS) sample, obtained with
the PACS instrument on board the Herschel Space Observatory. The [CII]
luminosities, L[CII], of the LIRGs in GOALS range from ∼107 to
2x109L☉.
Description:
We have obtained FIR spectroscopic observations for 153 LIRG systems
of the GOALS sample (Armus et al. 2009PASP..121..559A 2009PASP..121..559A) using the
Integral Field Spectrometer (IFS) of the PACS instrument on board
Herschel. The data were collected as part of an OT1 program
(OT1larmus1; P.I.: L. Armus) awarded with more than 165hr of
observing time.
Our observations were complemented with the inclusion of the remaining
LIRGs in the GOALS sample for which [CII] observations are publicly
available in the archive (as of 2012 October) from various Herschel
projects.
As part of the Spitzer GOALS legacy, all galaxies observed with
Herschel/PACS have available Spitzer/IRS low resolution (R∼60-120)
slit spectroscopy (SL module: 5.5-14.5um, and LL module: 14-38um).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 92 252 Herschel/PACS measurements for the GOALS sample
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See also:
VI/139 : Herschel Observation Log (Herschel Science Centre, 2013)
J/ApJS/206/1 : Mid-IR properties of GOALS nearby LIRGs (Stierwalt+, 2013)
J/ApJ/765/L26 : Swift/BAT ultra-hard X-ray data from GOALS LIRGs (Koss+, 2013)
J/ApJ/755/171 : [CII]158um line fluxes of AGN from Herschel (Sargsyan+, 2012)
J/ApJ/741/32 : Spatial extent of LIRGs in the MIR. II. (Diaz-Santos+, 2011)
J/A+A/533/A119 : GOODS-Herschel North and South catalogs (Elbaz+, 2011)
J/MNRAS/415/1479 : LESS photometric redshift survey (Wardlow+, 2011)
J/ApJ/723/993 : Spatial extent of LIRGs in the MIR. I. (Diaz-Santos+, 2010)
J/ApJ/715/572 : GOALS UV and FIR properties (Howell+, 2010)
J/ApJS/182/628 : Spitzer quasar and ULIRG evolution study (Veilleux+, 2009)
J/MNRAS/395/1695 : Spitzer MIR spectroscopy of LIRGs (Hernan-Caballero+, 2009)
J/ApJS/178/280 : Compendium of ISO far-IR extragalactic data (Brauher+, 2008)
J/AJ/126/1607 : IRAS Revised Bright Galaxy Sample (Sanders+, 2003)
J/ApJS/95/1 : Atlas of Quasar Energy Distributions (Elvis+ 1994)
http://goals.ipac.caltech.edu/ : GOALS home page
http://www.cosmos.esa.int/web/herschel/science-archive : Herschel archive
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 16 A16 --- Name Galaxy name
17 A1 --- f_Name [*] Slit not located at continuum peak (1)
19- 20 I2 h RAh Hour of Right Ascension (J2000)
22- 23 I2 min RAm Minute of Right Ascension (J2000)
25- 28 F4.1 s RAs Second of Right Ascension (J2000)
30 A1 --- DE- Sign of the Declination (J2000)
31- 32 I2 deg DEd Degree of Declination (J2000)
34- 35 I2 arcmin DEm Arcminute of Declination (J2000)
37- 38 I2 arcsec DEs Arcsecond of Declination (J2000)
40- 44 F5.1 Mpc Dist [15/400] Armus et al. 2009PASP..121..559A 2009PASP..121..559A distance
46 A1 --- l_Flux Limit flag on Flux
47- 51 F5.3 fW/m2 Flux [0.03/10] The [C II] 157.7 micron flux (2)
53- 57 F5.3 fW/m2 e_Flux [0.005/0.2]? Uncertainty in Flux
59 A1 --- l_Ratio Limit flag on Ratio
60- 64 F5.2 10-3 Ratio [0.08/20.1] The [C II]/FIR flux ratio (3)
66- 69 F4.2 10-3 e_Ratio [0.01/8.7]? Uncertainty in Ratio
71- 76 F6.2 Jy S63 [0.3/123.8] Continuum flux density at 63um (4)
78- 81 F4.2 Jy e_S63 [0.04/2.2] Uncertainty in S63
83- 87 F5.2 Jy S158 [0.6/76.3] Continuum flux density at 158um (5)
89- 92 F4.2 Jy e_S158 [0.02/1.1] Uncertainty in S158
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Note (1): Galaxies marked with an asterisk have their [C II] flux and
continuum measurements obtained at the position of the IRS slit.
The Spitzer/IRS pointing is located >4.7" from the position of the
[CII]+continuum peak for these 11 galaxies.
Note (2): As measured from the spaxel at which the [CII] line + continuum
emission of the galaxy peaks within the PACS FoV; that is, within an
effective aperture of ∼9.4"x9.4" (Section 3.2).
Note (3): Where the far-IR fluxes have been scaled to match the aperture of
the [C II] measurements.
Note (4): Under the [O I] line extracted at the same position and with the same
aperture size as in the Flux column.
Note (5): Under the [C II] line extracted at the same position and with the
same aperture size as in the Flux column.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 27-Feb-2015