J/A+A/486/73 AMIGA VII. FIR and radio study (Sabater+, 2008)
The AMIGA sample of isolated galaxies.
VII. Far-infrared and radio continuum study of nuclear activity.
Sabater J., Leon S., Verdes-Montenegro L., Lisenfeld U., Sulentic J.,
Verley S.
<Astron. Astrophys. 486, 73 (2008)>
=2008A&A...486...73S 2008A&A...486...73S
ADC_Keywords: Surveys ; Galaxies, radio ; Infrared sources
Keywords: galaxies: evolution - galaxies: interaction - galaxies: active -
surveys
Abstract:
This paper is part of a series involving the AMIGA project (Analysis
of the Interstellar Medium of Isolated GAlaxies). This project
provides a statistically-significant sample of the most isolated
galaxies in the northern sky. We present a study of the nuclear
activity in a well-defined sample of the most isolated galaxies (total
sample: n=1050, complete subsample: n=719) in the local Universe
traced by their far-infrared (FIR) and radio continuum emission.
We use the well-known radio continuum-FIR correlation to select
radio-excess galaxies that are candidates to host an active galactic
nucleus (AGN), as well as the FIR colours to find obscured
AGN-candidates. We also used the existing information on nuclear
activity in the Veron-Cetty catalogue and in the NASA Extragalactic
Database. A final catalogue of AGN-candidate galaxies has been
produced that will provide a baseline for studies on the dependence of
activity on the environment. Our sample is mostly radio quiet,
consistent with its high content of late-type galaxies. At most ∼1.5%
of the galaxies show a radio excess with respect to the radio-FIR
correlation, and this fraction even goes down to less than 0.8% after
rejection of back/foreground sources using FIRST. We find that the
fraction of FIR colour selected AGN-candidates is ∼28% with a lower
limit of ∼7%. Our final catalogue contains 89 AGN candidates and is
publicly available on the AMIGA web page
(http://www.iaa.csic.es/AMIGA.html).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 34 81 Galaxies from AMIGA sample listed as active in
the literature
table2.dat 35 20 Radio-excess galaxies found using the radio-FIR
correlation
table4.dat 23 8 Radio-excess galaxies in FIRST
table5.dat 31 197 Classified galaxies using the IRAS colour method
table6.dat 47 89 Catalogue of AGN-candidates for the total sample
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See also:
VII/82 : Catalogue of Isolated Galaxies (Karachentseva+ 1986)
VII/83 : Isolated Triplets of galaxies (Karachentseva+ 1988)
VII/213 : Hickson's Compact groups of Galaxies (Hickson+ 1982-1994)
J/A+A/411/391 : Revised positions for Cat. of Isolated galaxies (Leon+, 2003)
J/A+A/436/443 : Recession velocities of CIG galaxies (Verdes-Montenegro+ 2005)
J/A+A/449/937 : AMIGA II. Morphological refinement (Sulentic+, 2006)
J/A+A/462/507 : AMIGA III. IRAS data (Lisenfeld+, 2007)
J/A+A/470/505 : AMIGA IV. Neighbours around CIG galaxies (Verley+, 2007)
J/A+A/472/121 : AMIGA V. Isolation parameters (Verley+, 2007)
J/A+A/485/475 : AMIGA VI. GIG galaxies radio continuum properties (Leon+ 2008)
J/A+A/532/A117 : AMIGA VIII. Flux ratio asymmetry parameter (Espada+, 2011)
http://www.iaa.es/AMIGA.html : AMIGA HomePage
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- CIG CIG (VII/82) galaxy number (K73 NNNN in Simbad)
8- 18 A11 --- Type1 NED classification (1)
22- 27 A6 --- Type2 Veron-Cetty Catalogue (Cat. VII/248)
classification (1)
30- 34 A5 --- Type3 This study classification (1)(2)
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Note (1): Classification as follows:
Sy = Seyfert
HII = nuclear HII region
Sbrt = starburst
SBNG = small bright nucleus galaxy
NLAGN = narrow-line active galaxy (a mixture of Seyfert 2's, LINERS,
and starburst/AGN composites)
DANS = dwarf amorphous nuclei starburst galaxy
Note (2): Classification obtained discarding those cases where a
disagreement was found between the NED and Veron-Cetty classification.
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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 A1 --- Sample [S] S for galaxy belonging to the complete
subsample
3- 6 I4 --- CIG CIG (VII/82) galaxy number
(K73 NNNN in Simbad)
9- 13 F5.2 [solLum] logLFIR Far-infrared luminosity, from Lisenfeld et
al., (2007, Cat. J/A+A/462/507)
16 I1 --- l_logLFIR [0/1] 0=detection, 1=upper limit on logLFIR
20- 24 F5.2 [W/Hz] logL1.4GHz Radio continuum luminosity a 1.4GHz from
Leon et al. (2008, Cat. J/A+A/485/475)
27- 30 A4 --- MType Morphological type (2)
32- 35 F4.1 --- Excess Radio luminosity excess (1)
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Note (1): ratio of actual to expected radio flux from radio-FIR correlation
Note (2): From Sulentic et al. (2006, Cat. J/A+A/449/937), except for
CIG 999 (Karachentseva, 1973, Cat. VII/82, NED).
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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- 4 I4 --- CIG CIG (VII/82) number (K73 NNNN in Simbad)
7- 10 F4.1 mJy NVSS NVSS (Cat. VIII/65) radio continuum flux
at 1.4GHz
13- 17 F5.2 mJy FIRST FIRST (Cat. VIII/71) radio continuum flux
at 1.4GHz (1)
20- 23 F4.1 arcsec Dist Distance to the nearest FIRST source if more
than one source is present
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Note (1): Sum of FIRST fluxes within the NVSS search radius if more than
one source is present.
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1 A1 --- Sample [S] S for galaxy belonging to the complete
subsample
3- 6 I4 --- CIG CIG (VII/82) number (K73 NNNN in Simbad)
9- 13 F5.2 Jy S25um Flux density at 25um (1)
15 I1 --- l_S25um [0/1] 0=detection, 1=upper limit on S25um
18- 22 F5.2 Jy S60um Flux density at 60um (1)
24 I1 --- l_S60um [0/1] 0=detection, 1=upper limit on S60um
26- 31 A6 --- Type Classification (2)
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Note (1): Data from Lisenfeld et al., (2007, Cat. J/A+A/462/507).
Note (2): The value can be "AGN" for AGN-candidate galaxies with the IRAS
colour methor or "normal" in any other case.
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- CIG CIG (VII/82) number (K73 NNNN in Simbad)
6- 7 I2 h RAh Right ascension (J2000)
9- 10 I2 min RAm Right ascension (J2000)
12- 16 F5.2 s RAs Right ascension (J2000)
18 A1 --- DE- Declination sign (J2000)
19- 20 I2 deg DEd Declination (J2000)
22- 23 I2 arcmin DEm Declination (J2000)
25- 28 F4.1 arcsec DEs Declination (J2000)
30- 34 A5 --- Type1 Classification in the literature (see table1)
36- 41 A6 --- Type2 AGN candidates using the FIR colour criterion
43 I1 --- F3 [0/1] 1 if radio-excess candidate galaxy using
a factor 3 cutoff, 0 if not
45 I1 --- F5 [0/1] 1 if radio-excess candidate galaxy using
a factor 5 cutoff, 0 if not
47 I1 --- Sample [0/1] 1 if galaxy belongs to the complete
subsample, 0 if not
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Acknowledgements:
J. Sabater, jsm(at)iaa.es
History:
Copied at http://www.iaa.csic.es/AMIGA.html
References:
Leon et al., Paper I 2003A&A...411..391L 2003A&A...411..391L, Cat. J/A+A/411/391
Sulentic et al., Paper II 2006A&A...449..937S 2006A&A...449..937S Cat. J/A+A/449/937
Lisenfeld et al., Paper III 2007A&A...462..507L 2007A&A...462..507L, Cat. J/A+A/462/507
Verley et al., Paper IV 2007A&A...470..505V 2007A&A...470..505V, Cat. J/A+A/470/505
Verley et al., Paper V 2007A&A...472..121V 2007A&A...472..121V, Cat. J/A+A/472/121
Leon et al., Paper VI 2008A&A...485..475L 2008A&A...485..475L, Cat. J/A+A/485/475
Espada et al., Paper VIII 2011A&A...532A.117E 2011A&A...532A.117E, Cat. J/A+A/532/A117
Lisenfeld et al., Paper IX 2011A&A...534A.102L 2011A&A...534A.102L, Cat. J/A+A/534/A102
Fernandez Lorenzo et al., Paper X 2012A&A...540A..47F 2012A&A...540A..47F, Cat. J/A+A/540/A47
(End) J. Sabater [IAA-CSIC], Patricia Vannier [CDS] 04-Jul-2008