Access to Astronomical Catalogues

Search catalogue
obsoleted
in preparation
catalog without ftp or VizieR link
J/AZh/87/739   Steep and ultra-steep spectra RC sources       (Parijskij+, 2010)

Spectroscopy of "Big Trio" objects using the "Scorpio" spectrograph of the 6-m telescope of the Special Astrophysical Observatory. Parijskij Yu.N., Kopylov A.I., Temirova A.V., Soboleva N.S., Zhelenkova O.P., Verkhodanov O.V., Goss W.M., Fathkullin T.A. <Astron. Zh. 87, 739 (2010)> =2010AZh....87..739P =2010ARep...54..675P
ADC_Keywords: Radio sources ; Galaxies, radio ; QSOs ; Magnitudes ; Morphology Abstract: We present the results of spectroscopy of 71 objects with steep and ultra-steep spectra (alpha←0.9, S∝nualpha) from the "Big Trio" (RATAN-600-VLA-BTA) project, performed with the "Scorpio" spectrograph on the 6-m telescope of the Special Astrophysical Observatory (Russian Academy of Sciences). Redshifts were determined for these objects. We also present several other parameters of the sources, such as their R magnitudes, maximum radio sizes in seconds of arc, flux densities at 500, 1425, and 3940MHz, radio luminosities at 500 and 3940MHz, and morphology. Of the total number of radio galaxies studied, four have redshifts 1≤z<2, three have 2≤z<3, one has 3≤z<4, and one has z=4.51. Thirteen sources have redshifts 0.7<z<1 and 15 have 0.2<z<0.7. Of all the quasars studied, five have redshifts 0.7<z<1, seven have 1≤z<2, four have 2≤z<3, and one has z=3.57. We did not detect any spectral lines for 17 objects. Description: The data obtained from our observations with the "Scorpio" spectrograph mounted on the 6-m SAO telescope are collected in four tables. In total, we studied 71 objects with steep and ultra-steep spectra from the RC catalog. These include 17 quasars, with the other objects being radio galaxies. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 130 22 Radio galaxies with z>0.7 table2.dat 130 15 Radio galaxies with z<0.7 table3.dat 130 17 Quasars table4.dat 131 17 Radio galaxies with no emission lines detected
See also: VIII/33 : Spectral characteristics of RATAN (RC) Catalog (Bursov+ 1989) J/A+AS/87/1 : RATAN-600 7.6 cm catalog of radio sources (Parijskij+ 1991) Byte-by-byte Description of file: table[123].dat
Bytes Format Units Label Explanations
1- 2 I2 --- Seq Sequential number 4- 13 A10 --- RCJ RCJ designation (HHMM+DDMMA) 15- 16 I2 h RAh Right ascension (J2000) 18- 19 I2 min RAm Right ascension (J2000) 21- 25 F5.2 s RAs Right ascension (J2000) 27 A1 --- DE- Declination sign (J2000) 28- 29 I2 deg DEd Declination (J2000) 31- 32 I2 arcmin DEm Declination (J2000) 34- 37 F4.1 arcsec DEs Declination (J2000) 39 A1 --- l_Rmag Limit flag on Rmag 40- 43 F4.1 mag Rmag R magnitude 45- 49 F5.3 --- zsp Spectroscopic redshift 51- 55 F5.1 arcsec LAS Largest angular size 57- 61 F5.1 mJy S3.94 Flux density at 3940MHz 63- 65 I3 mJy S1.4 Flux density at 1400MHz 67- 70 I4 mJy S0.5 Flux density at 500MHz 72- 77 F6.3 --- SI3.94 Spectral index at 3940MHz 79- 84 F6.3 --- SI0.5 Spectral index at 500MHz 86- 93 E8.3 10+7W L3.94 Luminosity at 3940MHz 95-102 E8.3 10+7W L0.50 Luminosity at 500MHz 104-116 A13 --- Morph Morphology (G1) 118-130 A13 --- Note Note (2)
Note (2): Notes as follows: n = presence of narrow emission lines in the spectrum B = presence of broad emission lines in the spectrum abs = presence of absorption lines in the spectrum BLRG = broad-line radio galaxy
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Seq Sequential number 4- 13 A10 --- RCJ RCJ designation (HHMM+DDMMA) 15- 16 I2 h RAh Right ascension (J2000) 18- 19 I2 min RAm Right ascension (J2000) 21- 25 F5.2 s RAs Right ascension (J2000) 27 A1 --- DE- Declination sign (J2000) 28- 29 I2 deg DEd Declination (J2000) 31- 32 I2 arcmin DEm Declination (J2000) 34- 37 F4.1 arcsec DEs Declination (J2000) 39 A1 --- l_Rmag [>] Limit flag on Rmag 40- 43 F4.1 mag Rmag R magnitude 44 A1 --- u_Rmag [)] Uncertainty flag on Rmag 46 A1 --- l_LAS Limit flag on LAS 47- 51 F5.2 arcsec LAS Largest angular size 53- 55 I3 mJy S3.94 Flux density ar 3940MHz 57- 62 F6.3 --- SI3.94 Spectral index at 3940MHz 64- 69 F6.3 --- SI0.5 Spectral index at 500MHz 71- 85 A15 --- Morph Morphology (G1) 87-113 A27 s ExpTime Exposure time(s) 115-131 A17 --- Note Note
Global notes: Note (G1): Morphology code, as follows: P = point-like object D = double source T = triple source C = presence of a core BC = presence of a bright core WC = presence of a weak core CL = core and lobe structure (distinct components) CJ = core and jet structure (the core not distinguishable from the extended jet) FRI/FRII = object of Fanaroff-Riley types I/II
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 17-Sep-2010
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service

© UDS/CNRS

Contact