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J/A+A/495/691  Multifrequency catalogue of blazars, Roma-BZCAT  (Massaro+, 2009)

Roma-BZCAT: a multifrequency catalogue of blazars. Massaro E., Giommi P., Leto C., Marchegiani P., Maselli A., Perri M., Piranomonte S., Sclavi S. <Astron. Astrophys., 495, 691-696 (2009)> =2009A&A...495..691M
ADC_Keywords: QSOs ; BL Lac objects ; Galaxy catalogs ; Redshifts ; Photometry Keywords: BL Lacertae objects: general - galaxies: quasars: general - catalogs Abstract: We present a new catalogue of blazars based on multifrequency surveys and on an extensive review of the literature. Blazars are classified as BL Lacertae objects, as flat spectrum radio quasars or as blazars of uncertain/transitional type. Each object is identified by a root name, coded as BZB, BZQ and BZU for these three subclasses respectively, and by its coordinates. This catalogue is being built as a tool useful for the identification of the extragalactic sources that will be detected by present and future experiments for X and gamma-ray astronomy, like Swift, AGILE, Fermi-GLAST and Simbol-X. An electronic version is available from the ASI Science Data Center web site at http://www.asdc.asi.it/bzcat. Description: The Roma-BZCAT is structured in two parts. Part 1, at present the only one available on-line, contains the lists of blazars, which are classified in three main groups, according to their spectral properties. Each blazar is identified by a three-letter code, where the first two are BZ for blazar and the third one specifies the type, followed by the truncated equatorial coordinates (J2000). The codes are defined in the "Note (G1)" below. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file bzcat1.dat 106 2837 Multi-frequency catalogue of blazars (Roma-BZCAT) Version 1.0 (2009-November) bzcat4.dat 92 3149 Multi-frequency catalogue of blazars (Roma-BZCAT) Version 4.1.1 (2012-August)
Byte-by-byte Description of file: bzcat1.dat
Bytes Format Units Label Explanations
1- 4 I4 --- Seq Sequential number 6- 18 A13 --- Name Source name (based on J2000 position) 20- 21 I2 h RAh Right ascension (J2000.0) 23- 24 I2 min RAm Right ascension (J2000.0) 26- 29 F4.1 s RAs Right ascension (J2000.0) 31 A1 --- DE- Declination sign (J2000.0) 32- 33 I2 deg DEd Declination (J2000.0) 35- 36 I2 arcmin DEm Declination (J2000.0) 38- 41 F4.1 arcsec DEs Declination (J2000.0) 43- 47 F5.3 --- z Redshift 49- 52 F4.1 mag Rmag ?=99. R magnitude 54- 56 A3 --- Class Source classification (G1) 84- 90 F7.1 mJy FR Radio flux, from NVSS or SUMSS (2) 92- 98 F7.3 fW/m2 FX X-ray flux (in 10-12erg/cm2/s) 100-101 A2 --- u_z [?] Comment (uncertainty) on redshift 103-104 A2 --- n_Rmag Comment on Rmag (other band) 106 A1 --- r_FR [fpsw] Origin of radio flux (2)
Note (2): Frequencies are from: * f = FIRST: 1.4GHz (Cat. VIII/71) * s = SUMSS: 843MHz (Cat. VIII/81) * p = PMN: 5GHz (Cat. VIII/38) * w = PKSCAT: 1.41GHz (Cat. VIII/15)
Byte-by-byte Description of file: bzcat4.dat
Bytes Format Units Label Explanations
1- 4 I4 --- Seq [1-3419] Sequential number 6- 18 A13 --- Name Source name (based on J2000 position) 20- 21 I2 h RAh Right ascension (J2000.0) 23- 24 I2 min RAm Right ascension (J2000.0) 26- 29 F4.1 s RAs Right ascension (J2000.0) 31 A1 --- DE- Declination sign (J2000.0) 32- 33 I2 deg DEd Declination (J2000.0) 35- 36 I2 arcmin DEm Declination (J2000.0) 38- 41 F4.1 arcsec DEs Declination (J2000.0) 43- 47 F5.3 --- z Redshift 48- 49 A2 --- u_z [ >?] Uncertainty flag on Redshift 51- 54 F4.1 mag Rmag ? R-band magnitude 56- 58 A3 --- Class Source classification (G1) 60- 66 F7.1 mJy F1.4 Radio flux 1.4GHz (from NVSS or SUMSS) 68- 74 F7.1 mJy F143 Radio flux 143GHz 76- 82 F7.3 fW/m2 FX X-ray flux 0.1-2.4keV (in 10-12erg/cm2/s) 84- 92 E9.2 ph/cm2/s Fgam γ-ray flux 1-100GeV (Fermi)
Global Notes: Note (G1): the classifications are: BZB = BL Lac objects, used for AGNs with a featureless optical spectrum or only with absorption lines of galaxian origin and weak and narrow emission lines; BZ? = BL Lac candidates BZQ = flat-spectrum radio quasars, with an optical spectrum showing broad emission lines and dominant blazar characteristics; BZU = blazars of uncertain type, adopted for sources with peculiar characteristics but also showing blazar activity: for instance, occasional presence/absence of broad spectral lines or features, transition objects between a radio galaxy and a BL Lac, galaxies hosting a low luminosity blazar nucleus, etc.;
History: * 19-Nov-2009: Version 2837 sources (file bzcat1.dat) copied at http://www.asdc.asi.it/bzcat/ * 29-Aug-2013: Version 3149 sources (V4.1.1) copied V4.1.1 from http://www.asdc.asi.it/bzcat/ The unexplained flags for the redshift "el" (BZBJ1231+1421) or "cl" (BZBJ1234-3856) where ignored.
(End) Patricia Vannier, Francois Ochsenbein [CDS] 29-Aug-2013
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

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