J/MNRAS/419/1097 The EVN Galactic Plane Survey - EGaPS (Petrov, 2012)
The EVN Galactic Plane Survey - EGaPS
Petrov L.
<Mon. Not. R. Astron. Soc. 419, 1097 (2012)>
=2012MNRAS.419.1097P 2012MNRAS.419.1097P
ADC_Keywords: VLBI ; Radio sources
Keywords: catalogs ; surveys ; interferometry
Abstract:
I present a catalogue of positions and correlated flux densities of
109 compact extragalactic radio sources in the Galactic plane
determined from analysis of a 48 hour VLBI experiment at 22GHz with
the European VLBI Network. The median position uncertainty is 9mas.
The correlated flux densities of detected sources are in the range of
20 to 300mJy. In addition to target sources, nine water masers have
been detected, two of them new. I derived position of masers with
accuracies 30 to 200mas and determined velocities of maser components
and their correlated flux densities.
Description:
The EGAPS catalog presents precise positions of 108 compact
extragalactic radio sources as well as median correlated flux
densities at 22GHz at baseline lengths short than 900km and at
baseline lengths longer than 1350km.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 100 109 EGAPS catalog of source positions and
correlated flux densities at 22 GHz
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See also:
I/251 : VLBI International Celestial Reference Frame (ICRF) (Ma+ 1997)
J/A+A/437/1135 : Near-IR astrometry of Southern ICRF quasars (Camargo+, 2005)
J/A+A/493/317 : Radio source selection for the ICRF (Lambert+, 2009)
J/A+A/520/A113 : 398 extragalactic radio sources VLBI detection (Bourda+ 2010)
J/AJ/125/2728 : Optical positions of ICRF sources (Assafin+, 2003)
J/AJ/127/3587 : VLBI ICRF. II (Fey+, 2004)
J/AJ/127/3609 : VLBI observations of southern ICRF sources (Ojha+, 2004)
J/AJ/130/2529 : 8.4GHz VLBI observations of Southern ICRF sources (Ojha+, 2005
J/AJ/142/105 : Optically Bright Extragalactic Radio Sources (Petrov+, 2011)
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 1 A1 --- Cat [CNU] Category (1)
4- 11 A8 --- IVS IVS name; B1950
13- 22 A10 --- IAU IAU name; J2000
25- 26 I2 h RAh Hour of Right Ascension (J2000)
28- 29 I2 min RAm Minute of Right Ascension (J2000)
31- 39 F9.6 s RAs Second of Right Ascension (J2000)
41 A1 --- DE- Sign of the Declination (J2000)
42- 43 I2 deg DEd Degree of Declination (J2000)
45- 46 I2 arcmin DEm Arcminute of Declination (J2000)
48- 55 F8.5 arcsec DEs Arcsecond of Declination (J2000)
59- 63 F5.2 mas e_RAs Uncertainty in RAs; without cosδ factor
66- 70 F5.2 mas e_DEs Uncertainty in DEs
73- 78 F6.3 --- Corr Correlation between RA and Dec
80- 85 I6 --- Nobs Number of observations used
89- 93 F5.3 Jy F(K)s K-band (22GHz) "short" flux density (2)
95-100 F6.3 Jy F(K)l ?=-1.0 K-band (22GHz) "long" flux density (3)
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Note (1): Source category as follows:
C = a source is considered as a calibrator
N = a source is considered as not a calibrator
U = coordinates of the source position are unreliable
Note (2): At baseline projection lengths shorter than 900km.
Note (3): At baseline projection lengths longer than 1350km.
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Acknowledgements:
Leonid Petrov, Leonid.Petrov(at)lpetrov.net
(End) Francois Ochsenbein [CDS] 10-Mar-2012