J/A+A/416/35 Radio Emission from VLA FIRST Survey AGN (Wadadekar, 2004)
Search for radio emission from AGN in the FIRST Survey Area
Wadadekar Y.
<Astron. Astrophys. 416, 35 (2004)>
=2004A&A...416...35W 2004A&A...416...35W
ADC_Keywords: Galaxies, Seyfert ; Surveys
Keywords: galaxies: active - methods: statistical - catalogs - surveys
Abstract:
Using the most recent (April 2003) version of the VLA FIRST survey
radio catalog (Cat. VIII/71), we have searched for radio emission
from >2800 AGN taken from the most recent (2001) version of the
Veron-Cetty and Veron AGN catalog (Cat. VII/224, superseded by 2003,
Cat. VII/235). These AGN lie in the ∼9033 square degrees of sky
already covered by the VLA FIRST survey. Our work has resulted in
positive detection of radio emission from 775 AGN of which 214 are new
detections at radio wavelengths.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 83 776 AGN with radio detections
table4.dat 61 2068 AGN not detected in the radio
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See also:
VII/235 : Quasars and Active Galactic Nuclei (11th Ed.) (Veron+, 2003)
VIII/71 : The FIRST Survey Catalog, Version 03Apr11 (Becker+ 2003)
Byte-by-byte Description of file: table3.dat table4.dat
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Bytes Format Units Label Explanations
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1 A1 --- n_Name [*] '*' if not detected in radio in VV01,
Cat. VII/224
2- 19 A18 --- Name Object Name (1)
21- 24 A4 --- Class Object class (1)
26- 30 F5.3 --- z Redshift
31 A1 --- n_z [*] Flag on z (2)
33- 37 F5.2 mag Vmag ? Photoelectric or photographic V magnitude
38 A1 --- n_Vmag [*ORI] Flag on Vmag (3)
41- 42 I2 h RAh Right ascension (J2000.0)
44- 45 I2 min RAm Right ascension (J2000.0)
47- 50 F4.1 s RAs Right ascension (J2000.0)
53 A1 --- DE- Declination sign (J2000.0)
54- 55 I2 deg DEd Declination (J2000.0)
57- 58 I2 arcmin DEm Declination (J2000.0)
60- 61 I2 arcsec DEs Declination (J2000.0)
63- 69 F7.2 mJy Fpeak ? Peak radio flux density at 1.4GHz (4)
72- 78 F7.2 mJy Fint ? Integrated radio flux density at 1.4GHz (4)
80- 83 F4.2 arcsec Sep ? Angular separation between AGN and FIRST
source (4)
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Note (1): As listed in Veron-Cetty and Veron, 2001A&A...374...92V 2001A&A...374...92V,
Cat. VII/224 (superseded by VII/235)
The classification of the object is:
S1 : Seyfert 1 spectrum
S1h: broad polarized Balmer lines detected
S1i: broad Paschen lines observed in the infrared
S1n: narrow-line Seyfert 1
S1.0, S1.2, S1.5, S1.8, S1.9: intermediate Seyfert galaxies
S2 : Seyfert 2 spectrum
S3 : Seyfert 3 or liner
S3b: Seyfert 3 or liner with broad Balmer lines
S3h: Seyfert 3 or liner with broad polarized Balmer lines detected
S : unclassified Seyfert
S? : possibly a Seyfert
H2 : nuclear HII region
HP : high optical polarization (>3%)
Note (2): A * in front of the redshift means that it has been estimated
from a low dispersion slitless spectrum and is of lesser accuracy.
Note (3): Where V magnitudes are not available other magnitudes are listed.
These include Photographic (*), red (R), photographic O- or J- plates (O)
Note (4): In table3.dat only
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Acknowledgements: Yogesh Wadadekar
(End) Yogesh Wadadekar [STScI, USA] 01-Dec-2003