J/other/AstBu/79.36 Radio measurements of radiosources (Kudryashova+, 2024)
Radio Sources of the Survey on the Declination of the Pulsar
in the Crab Nebula (Dec = +22 deg).
Kudryashova A.A., Bursov N.N., Trushkin S.A.
<Astrophys. Bull., 79, 36, (2024)>
=2024AstBu..79...36K 2024AstBu..79...36K (SIMBAD/NED BibCode)
ADC_Keywords: Galaxy catalogs ; Galaxies, optical ; Radio sources ;
Velocity dispersion ; Combined data
Keywords: catalogs: surveys - galaxies: active - radio continuum: galaxies
Abstract:
The results of the analysis of 205 brightest sources (S>15mJy),
which were found in the sky survey at the declination of the pulsar in
the Crab Nebula, are presented. The survey was conducted at a
frequency of 4.7GHz using a three-beam radiometer complex installed
in the focus of the Western Sector of the RATAN-600 radio telescope in
2018-2019. Based on the measurements taken and the data collected in
the CATS astrophysical catalog database, the radio spectra of the
objects were constructed. For a quarter of all detected sources, data
at frequencies above 4 GHz were obtained for the first time, and for
the rest they were supplemented. The variability of radiation sources
on the scales of the year, from days to months, has been studied. The
greatest change in the radio flux was found in the blazar B2 1324+22.
The search for daily variability was carried out for the 26 brightest
sources with an average value of S4.7∼250mJy. All sources are
identified with objects from optical and infrared catalogs. The radio
luminosity was calculated for 112 objects with a known redshift.
Description:
We present flux density measurements of 26 radiosources observed at
4.7GHz in daily mode in 28.05.2018 - 30.05.2019. Flux densities
presented in this table are avareged for each three days.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
sources.dat 33 26 List of the 26 bright sources
data.dat 36 3172 Flux densities of the 26 bright sources at 4.7GHz
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See also:
VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)
Byte-by-byte Description of file: sources.dat
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Bytes Format Units Label Explanations
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1- 14 A14 --- Name Source name, JHHMMSS+DDMMSS
16- 17 I2 h RAh Right ascension (J2000)
19- 20 I2 min RAm Right ascension (J2000)
22- 23 I2 s RAs Right ascension (J2000)
25 A1 --- DE- Declination sign (J2000)
26- 27 I2 deg DEd Declination (J2000)
29- 30 I2 arcmin DEm Declination (J2000)
32- 33 I2 arcsec DEs Declination (J2000)
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Byte-by-byte Description of file: data.dat
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Bytes Format Units Label Explanations
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1- 14 A14 --- Name Source name, JHHMMSS+DDMMSS
16- 20 I5 d MJD Modified Julian day
24- 29 F6.1 mJy S Flux density at 4.7GHz of source
32- 36 F5.1 mJy e_S Flux density at 4.7GHz error
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Acknowledgements:
Anastasya Kudryashova, akudryasova(at)yandex.ru
(End) Patricia Vannier [CDS] 02-May-2025