1994A&A...284..331O

Query : 1994A&A...284..331O

1994A&A...284..331O - Astronomy and Astrophysics, volume 284, 331-339 (1994/4-1)

An updated list of radio flux density calibrators.

OTT M., WITZEL A., QUIRRENBACH A., KRICHBAUM T.P., STANDKE K.J., SCHALINSKI C.J. and HUMMEL C.A.

Abstract (from CDS):

We present new flux densities in the range 0.7cm ≤λ≤21cm for the radio sources in the calibrator list of Baars et al. (1977). Most of these sources show significant variability on the time scale of a decade, with the notable exception of 3C286 and 3C295. We use these sources to link our relative measurements to the absolute scale of Baars et al.; for the other sources we present updated spectra. We assess the suitability of the individual sources for use as flux density calibrators.

Abstract Copyright: ∼

Journal keyword(s): observational methods - radio continuum: general

Simbad objects: 17

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Number of rows : 17
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 3C 48 QSO 01 37 41.2996631208 +33 09 35.080388820   16.62 16.20     ~ 2812 2
2 NAME W 3 OH HII 02 27 04.1 +61 52 22           ~ 1024 2
3 NAME Per B AGN 04 37 04.37535450 +29 40 13.8179631   21.7       ~ 514 2
4 ICRF J054236.1+495107 Sy1 05 42 36.13789710 +49 51 07.2337139   18.45 17.80 17.210   ~ 1493 1
5 2C 553 QSO 06 27 10.1 -05 53 06           ~ 157 1
6 NAME Hya A LIN 09 18 05.66848602 -12 05 43.8060823   14.38 14.8     ~ 1011 1
7 ATO J146.9381+07.4223 Sy1 09 47 45.1433922288 +07 25 20.595729756   17.37 16.95     ~ 375 0
8 [OKM2018] SWIFT J1104.8+7689 Sy1 11 04 13.8611496720 +76 58 58.194549084   15.70 15.72 15.40   ~ 543 1
9 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7181 3
10 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4338 2
11 3C 295 Sy2 14 11 20.6 +52 12 09   22.34 20.80 18.54   ~ 979 5
12 ICRF J145907.5+714019 Sy1 14 59 07.58390804 +71 40 19.8668093   17.24 16.78 17.2   ~ 493 1
13 NAME Hercules A rG 16 51 07.9886687784 +04 59 35.547131472     18.25     ~ 465 1
14 2C 1473 AGN 17 20 28.1680537512 -00 58 46.582453920   15.36       ~ 324 1
15 NAME Cyg A Sy2 19 59 28.35656837 +40 44 02.0972325   16.22 15.10     ~ 2365 2
16 DR 21 SFR 20 39 01.6 +42 19 38           O4.5 1053 0
17 NGC 7027 PN 21 07 01.571952 +42 14 10.47120   10.358 8.831 10.157   ~ 2457 1

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