J/ApJ/656/770 Mid-IR spectrum of star-forming galaxies (Smith+, 2007)
The mid-infrared spectrum of star-forming galaxies: global properties of
polycyclic aromatic hydrocarbon emission.
Smith J.D.T., Draine B.T., Dale D.A., Moustakas J., Kennicutt R.C.Jr,
Helou G., Armus L., Roussel H., Sheth K., Bendo G.J., Buckalew B.A.,
Calzetti D., Engelbracht C.W., Gordon K.D., Hollenbach D.J., Li A.,
Malhotra S., Murphy E.J., Walter F.
<Astrophys. J., 656, 770-791 (2007)>
=2007ApJ...656..770S 2007ApJ...656..770S
ADC_Keywords: Galaxies, spectra ; Galaxies, IR
Keywords: galaxies: active - galaxies: ISM - infrared: galaxies -
techniques: spectroscopic
Abstract:
We present a sample of low-resolution 5-38um Spitzer IRS spectra of
the inner few square kiloparsecs of 59 nearby galaxies spanning a
large range of star formation properties. A robust method for
decomposing mid-infrared galaxy spectra is described and used to
explore the behavior of PAH emission and the prevalence of silicate
dust extinction.
Description:
SINGS includes uniform 5-38um spectral mapping with the Infrared
Spectrograph (IRS). Full observational details regarding the SINGS
spectral mapping program can be found in Kennicutt et al.
(2003PASP..115..928K 2003PASP..115..928K).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 85 59 Sample parameter
table4.dat 242 59 Recovered dust feature and line strengths
table8.dat 43 802 Noise-free MIR template spectra
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Galaxy Galaxy name
10- 16 A7 --- Type Nuclear type based on optical
classification (1)
18- 21 F4.1 Mpc Dist Adopted distance (2)
23- 24 I2 h RAh Center of extraction aperture
right ascension (J2000)
26- 27 I2 min RAm Center of extraction aperture
right ascension (J2000)
29- 33 F5.2 s RAs Center of extraction aperture
right ascension (J2000)
35 A1 --- DE- Center of extraction aperture
declination sign (J2000)
36- 37 I2 deg DEd Center of extraction aperture
declination (J2000)
39- 40 I2 arcmin DEm Center of extraction aperture
declination (J2000)
42- 45 F4.1 arcsec DEs Center of extraction aperture
declination (J2000)
47- 50 F4.1 arcsec Size1 Extraction aperture size
51 A1 --- --- [x]
52- 55 F4.1 arcsec Size2 Extraction aperture size
57- 61 F5.2 kpc+2 Area Physical extraction aperture area
63- 68 F6.1 deg PA [-180/180] Extraction aperture position angle
east of north of first (slit aligned) axis
of extraction rectangle
70- 74 F5.1 10+8solLum LTIR Total infrared luminosity (3-1100um) within
the extraction aperture
76- 79 F4.2 --- fTIR Fraction of global TIR contained in
the aperture
81- 85 F5.2 ---- LIR/LB ?=- Total infrared-to-B-band luminosity ratio
in the aperture
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Note (1): Based on the optical classification methodology of Kauffmann et
al. (2003MNRAS.346.1055K 2003MNRAS.346.1055K) applied to the compiled spectroscopic sample
of Moustakas et al. (2007ApJ...660L..31M 2007ApJ...660L..31M). See also Dale et al. (2006,
Cat. J/ApJ/646/161).
Note (2): Adopted distances from the literature compilation and local flow
model of Masters et al. (2008AJ....135.1738M 2008AJ....135.1738M).
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Galaxy Galaxy name
10- 17 E8.2 W/m2/sr F6.2 The 6.2um dust feature intensity
19- 26 E8.2 W/m2/sr e_F6.2 ? Uncertainty in F6.2 (1)
28- 35 E8.2 W/m2/sr F7.7 The 7.7um Complex dust feature intensity
37- 44 E8.2 W/m2/sr e_F7.7 Uncertainty in F7.7
46- 53 E8.2 W/m2/sr F8.3 The 8.3um dust feature intensity
55- 62 E8.2 W/m2/sr e_F8.3 ? Uncertainty in F8.3 (1)
64- 71 E8.2 W/m2/sr F8.6 The 8.6um dust feature intensity
73- 80 E8.2 W/m2/sr e_F8.6 ? Uncertainty in F8.6 (1)
82- 89 E8.2 W/m2/sr F11.3 The 11.3um Complex dust feature intensity
91- 98 E8.2 W/m2/sr e_F11.3 Uncertainty in 11.3
100-107 E8.2 W/m2/sr F12.0 The 12.0um dust feature intensity
109-116 E8.2 W/m2/sr e_F12.0 ? Uncertainty in F12.0 (1)
118-125 E8.2 W/m2/sr F12.6 The 12.6um Complex dust feature intensity
127-134 E8.2 W/m2/sr e_F12.6 Uncertainty in F12.6
136-143 E8.2 W/m2/sr F13.6 The 13.6um dust feature intensity
145-152 E8.2 W/m2/sr e_F13.6 ? Uncertainty in F13.6 (1)
154-161 E8.2 W/m2/sr F16.4 The 16.4um dust feature intensity
163-170 E8.2 W/m2/sr e_F16.4 ? Uncertainty in F16.4 (1)
172-179 E8.2 W/m2/sr F17.0 The 17um Complex dust feature intensity
181-188 E8.2 W/m2/sr e_F17.0 Uncertainty in F17.0
190-197 E8.2 W/m2/sr F17.4 The 17.4um dust feature intensity
199-206 E8.2 W/m2/sr e_F17.4 ? Uncertainty in F17.4 (1)
208-215 E8.2 W/m2/sr NeII The [NeII] line intensity (12.813µm)
217-224 E8.2 W/m2/sr e_NeII ? Uncertainty in NeII (1)
226-233 E8.2 W/m2/sr NeIII The [NeIII] line intensity (15.555µm)
235-242 E8.2 W/m2/sr e_NeIII Uncertainty in NeIII
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Note (1): Blank uncertainties represent NaN values.
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Byte-by-byte Description of file: table8.dat
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Bytes Format Units Label Explanations
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1- 8 F8.4 um Lambda Wavelength
10- 15 F6.4 --- Temp1 Template 1 relative fnu flux density
17- 22 F6.4 --- Temp2 Template 2 relative fnu flux density
24- 29 F6.4 --- Temp3 Template 3 relative fnu flux density
31- 36 F6.4 --- Temp4 Template 4 relative fnu flux density
38- 43 F6.4 --- LumWei Luminosity-weighted relative fnu flux density
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 10-Dec-2008