J/A+A/363/141 Radio-loud galaxies in the ROSAT survey. IV. (Reich+, 2000)
Radio-loud active galaxies in the northern ROSAT All-Sky Survey.
IV. Properties of sources stronger than 100 mJy at 5 GHz.
Reich W., Fuerst E., Reich P., Kothes R., Brinkmann W., Siebert J.
<Astron. Astrophys. 363, 141 (2000)>
=2000A&A...363..141R 2000A&A...363..141R
ADC_Keywords: Galaxies, radio ; QSOs ; X-ray sources ; Polarization
Keywords: polarization - galaxies: active - quasars: general -
radio continuum: general - X-rays: general
Abstract:
We present multi-frequency radio data for 741 extragalactic sources
with a 5GHz integrated flux density of >100mJy. These sources have
been selected from a cross-correlation of an early ROSAT All-Sky
Survey source list with a list of compact radio sources of the 5GHz
Green Bank northern sky survey (RGB sample, Cat. VIII/52). The
majority of sources were quasi-simultaneously observed with the
Effelsberg 100-m telescope at 11cm, 6cm, and 2.8cm. We have determined
the spectrum, size and linear polarization properties of these
sources. We compare the radio data with ROSAT measurements and optical
data. We find that the X-ray selected radio sources, when compared
with unbiased radio source samples, are on average slightly more
compact, show a higher fractional polarization, a higher absolute
rotation measure (RM), and have flatter spectra. Absolute RMs are
larger for steep spectrum than for flat spectrum sources and for
extended than for compact sources. The average redshift increases with
the radio flux density, which indicates that the X-ray selected radio
sources have a larger fraction of beamed radio emission. All source
characteristics of the sample are in accordance with present
unification schemes for AGN, where X-ray selected sources are
preferably looked at face on.
Description:
Table 1 lists the results for 741 sources of Effelsberg radio
observations together with the ROSAT X-ray data and optical
identifications as far as available. Table 2 lists 57 additional
observations from 48 sources from Table 1, which were observed more
than once.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 250 741 Data for 741 source
table2.dat 250 57 Repeated observations
--------------------------------------------------------------------------------
See also:
IX/10A : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999)
VIII/52 : The MIT-Green Bank 5GHz Survey (Bennett+, 1986-91)
J/A+A/319/413 : ROSAT detected quasars. I. (Brinkmann+ 1997)
J/A+A/323/739 : ROSAT detected quasars. II. (Brinkmann+ 1997)
Byte-by-byte Description of file: table?.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 A3 --- --- [RGB]
4- 15 A12 --- RGB Green Bank catalog (VIII/52) name
16 A1 --- n_RGB [*] *: source with repeated observations
18- 26 A9 --- Bname Name based on 1950 position (HHMM+DDMM)
28- 32 A5 --- r_Pos Position references (2)
34- 39 I6 mJy F11cm ? Integrated 11cm (2.7GHz) flux density
41- 45 I5 mJy F6cm ? Integrated 6cm (5GHz) flux density
47- 51 I5 mJy F2.8cm ? Integrated 2.8cm (10.7GHz) flux density
53- 57 F5.2 --- SI11-6 ? Spectral index 11cm/6cm (1)
59- 62 F4.2 --- e_SI11-6 ? Error of spectral index 11cm/6cm
64- 73 E10.4 mW/m2 F11-2.8 Integrated flux density (11cm to 2.8cm)
75 I1 --- q_F11cm [1/4]? Error class see Note (3)
77 I1 --- q_F6cm [1/4]? Error class see Note (3)
79 I1 --- q_F2.8cm [1/4]? Error class see Note (3)
81- 85 F5.2 --- SI6-2.8 ? Spectral index 6cm/2.8cm (1)
87- 90 F4.2 --- e_SI6-2.8 ? Error of spectral index 6cm/2.8cm
92-101 E10.4 mW/m2 Fx Integrated flux density (0.1-2.4 KeV)
103-108 F6.4 --- z ? Measured redshift
110-114 F5.2 mag Vmap ? Optical magnitude (V at most)
116-118 I3 arcsec D11a ? RA source size 11cm
119 A1 --- n_D11a [u] u: Unresolved (point-like sources)
120 A1 --- --- [x]
121-123 I3 arcsec D11d ? DE source size 11cm
124 A1 --- n_D11d [u] u: Unresolved (point-like sources)
126-128 I3 arcsec D6a ? RA source size 6cm
129 A1 --- n_D6a [u] u: Unresolved (point-like sources)
130 A1 --- --- [x]
131-133 I3 arcsec D6d ? DE source size 6cm
134 A1 --- n_D6d [u] u: Unresolved (point-like sources)
136-138 I3 arcsec D2.8a ? RA source size 2.8cm
139 A1 --- n_D2.8a [u] u: Unresolved (point-like sources)
140 A1 --- --- [x]
141-143 I3 arcsec D2.8d ? DE source size 2.8cm
144 A1 --- n_D2.8d [u] u: Unresolved (point-like sources)
146-150 F5.2 --- SI11+ ? Spectral index fit 11cm/6cm/2.8cm (1)
152-155 F4.2 --- e_SI11+ ? Error of spectral index fit
157-159 F3.1 --- SIx ? X-ray power law photon index (1)
161-163 F3.1 --- e_SIx ? Error of x-ray power law photon index
165-166 I2 % e_Fx Error of X-ray flux density
168-170 A3 --- OptID Optical identification see Note (4)
172-181 A10 --- Name Common source name
182 A1 --- l_Pol11 Limit flag on Pol11cm
183-184 I2 % Pol11 ? Percentage polarization at 11cm
185 A1 --- --- [/]
186-188 I3 deg PA11 ? Polarisation angle at 11cm
190 A1 --- l_Pol6 Limit flag on Pol6cm
191-192 I2 % Pol6 ? Percentage polarization at 6cm
193 A1 --- --- [/]
194-196 I3 deg PA6 ? Polarisation angle at 6cm
198 A1 --- l_Pol2.8 Limit flag on Pol2.8cm
199-200 I2 % Pol2.8 ? Percentage polarization at 2.8cm
201 A1 --- --- [/]
202-204 I3 deg PA2.8 ? Polarisation angle at 2.8cm
207-211 F5.2 yr Ep11cm ? Date of 11cm measurement (1900+)
213-217 F5.2 yr Ep6cm ? Date of 6cm measurement (1900+)
219-223 F5.2 yr Ep2.8cm ? Date of 2.8cm measurement (1900+)
225-229 F5.2 10+21cm-2 NH Column density of neutral hydrogen
231-232 I2 h RAh Right Ascension J2000 (hours) (5)
234-235 I2 min RAm Right Ascension J2000 (minutes) (5)
237-240 F4.1 s RAs Right Ascension J2000 (seconds) (5)
241 A1 --- fPos [*] indicates a position accurate to 1' (5)
242 A1 --- DE- Declination J2000 (sign) (5)
243-244 I2 deg DEd Declination J2000 (degrees) (5)
246-247 I2 arcmin DEm Declination J2000 (minutes) (5)
249-250 I2 arcsec DEs ? Declination J2000 (seconds) (5)
--------------------------------------------------------------------------------
Note (1): Spectral index α as: S ∝ να
Note (2): The following abbreviations are used:
N = Neumann et al. (1994A&AS..106..303N 1994A&AS..106..303N)
K = Kuehr et al. (1979 MPIfR preprint No.55, 1981A&AS...45..367K 1981A&AS...45..367K) and
Tabara & Inoue (1980A&AS...39..379T 1980A&AS...39..379T)
O = Ott et al. (1994A&A...284..331O 1994A&A...284..331O) and
Tabara & Inoue (1980A&AS...39..379T 1980A&AS...39..379T)
GR = Reich et al., Table 1 (1998A&AS..131...11R 1998A&AS..131...11R)
GR1 = Reich et al., Table 3 (1998A&AS..131...11R 1998A&AS..131...11R)
Note (3): Error class (quality) takes the following values:
1 = error ≤ 9%
2 = error ≤ 14%
3 = error ≤ 23%
4 = error > 23%
Note (4): Optical identifications from Brinkmann et al. (1997A&A...323..739B 1997A&A...323..739B)
and Laurent-Muehleisen et al. (1997A&AS..122..235L 1997A&AS..122..235L) as follows:
G = galaxy
QSO = quasar
BLL = BL Lac type object
GCL = galaxy cluster
* = star
Note (5): the position was added in March 2007, from the log of the
observations at Bonn observatory. However 534 positions only could
be retrieved; the other positions, derived from the RGB name, are
accurate to 1' only and are flagged with a '*' in the fPos column.
--------------------------------------------------------------------------------
History:
* 30-Nov-2000: Original version
* 17-May-2001: in table1.dat, RGBJ0000.0+0000 replaced by RGBJ0425.5+1755
on 17-May-2001
* 28-Mar-2007: Positions added (when possible), see Note (5) above.
* 02-Jun-2007: A few more positions added, see Note (5) above.
Acknowledgements:
Wolfgang Reich <p098wre(at)mpifr-bonn.mpg(de)>
(End) Wolfgang Reich [Bonn], Patricia Bauer [CDS] 17-May-2001