J/ApJ/742/27 15GHz and jet properties of MOJAVE blazars (Lister+, 2011)
γ-ray and parsec-scale jet properties of a complete sample of blazars
from the MOJAVE program.
Lister M.L., Aller M., Aller H., Hovatta T., Kellermann K.I., Kovalev Y.Y.,
Meyer E.T., Pushkarev A.B., Ros E., (the MOJAVE Collaboration),
Ackermann M., Antolini E., Baldini L., Ballet J., Barbiellini G.,
Bastieri D., Bechtol K., Bellazzini R., Berenji B., Blandford R.D.,
Bloom E.D., Boeck M., Bonamente E., Borgland A.W., Bregeon J., Brigida M.,
Bruel P., Buehler R., Buson S., Caliandro G.A., Cameron R.A., Caraveo P.A.,
Casandjian J.M., Cavazzuti E., Cecchi C., Chang C.S., Charles E.,
Chekhtman A., Cheung C.C., Chiang J., Ciprini S., Claus R.,
Cohen-Tanugi J., Conrad J., Cutini S., de Palma F., Dermer C.D.,
do Couto e Silva E., Drell P.S., Drlica-Wagner A., Favuzzi C., Fegan S.J.,
Ferrara E.C., Finke J., Focke W.B., Fortin P., Fukazawa Y., Fusco P.,
Gargano F., Gasparrini D., Gehrels N., Germani S., Giglietto N.,
Giordano F., Giroletti M., Glanzman T., Godfrey G., Grenier I.A.,
Guiriec S., Hadasch D., Hayashida M., Hays E., Horan D., Hughes R.E.,
Johannesson G., Johnson A.S., Kadler M., Katagiri H., Kataoka J.,
Knodlseder J., Kuss M., Lande J., Longo F., Loparco F., Lott B.,
Lovellette M.N., Lubrano P., Madejski G.M., Mazziotta M.N., McConville W.,
McEnery J.E., Mehault J., Michelson P.F., Mizuno T., Monte C.,
Monzani M.E., Morselli A., Moskalenko I.V., Murgia S., Naumann-Godo M.,
Nishino S., Nolan P.L., Norris J.P., Nuss E., Ohno M., Ohsugi T.,
Okumura A., Omodei N., Orlando E., Ozaki M., Paneque D., Parent D.,
Pesce-Rollins M., Pierbattista M., Piron F., Pivato G., Raino S.,
Readhead A., Reimer A., Reimer O., Richards J.L., Ritz S.,
Sadrozinski H.F.-W., Sgro C., Shaw M.S., Siskind E.J., Spandre G.,
Spinelli P., Takahashi H., Tanaka T., Thayer J.G., Thayer J.B.,
Thompson D.J., Tosti G., Tramacere A., Troja E., Usher T.L.,
Vandenbroucke J., Vasileiou V., Vianello G., Vitale V., Waite A.P.,
Wang P., Winer B.L., Wood K.S., Zimmer S., (the Fermi LAT Collaboration)
<Astrophys. J., 742, 27 (2011)>
=2011ApJ...742...27L 2011ApJ...742...27L
ADC_Keywords: Active gal. nuclei ; Radio continuum ; Surveys ; Gamma rays ;
BL Lac objects ; QSOs
Keywords: BL Lacertae objects: general - galaxies: active - galaxies: jets -
gamma rays: galaxies - quasars: general - radio continuum: galaxies
Abstract:
We investigate the Fermi Large Area Telescope γ-ray and 15GHz
Very Long Baseline Array radio properties of a joint γ-ray and
radio-selected sample of active galactic nuclei (AGNs) obtained during
the first 11 months of the Fermi mission (2008 August 4-2009 July 5).
Our sample contains the brightest 173 AGNs in these bands above
declination -30° during this period, and thus probes the full
range of γ-ray loudness (γ-ray to radio band luminosity
ratio) in the bright blazar population. The latter quantity spans at
least 4 orders of magnitude, reflecting a wide range of spectral
energy distribution (SED) parameters in the bright blazar population.
The BL Lac objects, however, display a linear correlation of
increasing γ-ray loudness with synchrotron SED peak frequency,
suggesting a universal SED shape for objects of this class.
Description:
We list the radio flux density data for our sample in Table 3. For
each AGN we selected a VLBA "reference" epoch, which was chosen to be
the closest MOJAVE VLBA observation to the end of the initial 11 month
Fermi period. In the case of 41 sources, no VLBA data were available
within this period, so we used the first available MOJAVE VLBA epoch
following this period. The latter epoch dates ranged from 2009 July 23
to 2010 November 29. We also collected radio variability statistics
for 84% of our AGN sample using 15GHz OVRO and UMRAO data taken during
the first 11 months of the Fermi mission (Richards et al. 2011,
Cat. J/ApJS/194/29; Aller et al. 2003ApJ...586...33A 2003ApJ...586...33A).
The 15GHz radio VLBA data were obtained as part of the MOJAVE
observing program (Lister et al. 2009, Cat. J/AJ/137/3718), and
consist of linear polarization and total intensity images with a
typical image FWHM restoring beam of approximately 1mas. This
corresponds to a scale of a few parsecs at the typical redshifts (z∼1)
of our sample AGNs.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2.dat 113 173 General properties of AGNs in the combined
γ-ray and radio samples
table3.dat 59 173 Flux data
table4.dat 43 173 Jet data
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See also:
J/ApJS/199/31 : Fermi LAT second source catalog (2FGL) (Nolan+, 2012)
J/A+A/535/A69 : AGN Fermi/LAT γ-ray and 37GHz fluxes (Nieppola+, 2011)
J/ApJ/741/30 : Radio/gamma-ray correlation in AGN (Ackermann+, 2011)
J/ApJS/194/29 : Observations of blazars at 15GHz (Richards+, 2011)
J/ApJ/726/16 : γ-ray loud blazars (Linford+, 2011)
J/ApJ/722/L7 : Fermi/LAT detected MOJAVE AGNs (Pushkarev+, 2010)
J/ApJ/718/587 : The Fermi-AT20G catalog (Mahony+, 2010)
J/ApJ/715/429 : First Fermi-LAT AGN catalog (1LAC) (Abdo+, 2010)
J/ApJS/188/405 : Fermi-LAT first source catalog (1FGL) (Abdo+, 2010)
J/ApJ/716/30 : SED of Fermi bright blazars (Abdo+, 2010)
J/ApJ/710/764 : Extended radio emission in MOJAVE blazars (Kharb+, 2010)
J/ApJ/709/1407 : SED of the Fermi blazars (Li+, 2010)
J/AJ/138/1874 : MOJAVE. VI. Kinematic analysis of blazar jets (Lister+, 2009)
J/AJ/137/3718 : 15GHz monitoring of AGN jets with VLBA (Lister+, 2009)
J/A+A/488/867 : Synchrotron peak frequency of 135 AGN (Nieppola+, 2008)
J/ApJS/175/97 : CGRaBS: γ-ray blazar candidates (Healey+, 2008)
J/A+A/445/441 : SED of BL Lacertae objects (Nieppola+, 2006)
J/AJ/131/1262 : Polarization images at 15GHz of AGN jets (Homan+, 2006)
J/AJ/130/2473 : Fine-scale structure in 250 sources at 15GHz (Kovalev+, 2005)
J/AJ/130/1389 : Linear polarization of AGN jets at 15GHz (Lister+, 2005)
http://www.physics.purdue.edu/MOJAVE : MOJAVE home page
http://fermi.gsfc.nasa.gov/ssc/ : Fermi Science Support Center page
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- Name IAU name (JHHMM+DDMM)
12- 19 A8 --- BName IAU name (HHMM+DDd; B1950)
21- 32 A12 --- 1FGL 1FGL name if any (JHHMM.m+DDMM)
34- 47 A14 --- Alias Other name
49- 55 F7.5 --- z [0.00436/3.396]? Redshift
57- 82 A26 --- Aut Author's name reference for the redshift
84-102 A19 --- r_z Bibcode for the redshift if any
104 A1 --- Opt [UBQG] Optical classification (B=BL Lac,
Q=quasar, G=radio galaxy, U=unidentified)
106-108 A3 --- SED [HILSP] Spectral energy distribution class:
High/Intermediate/Low Spectral Peaked
110-111 I2 --- r_SED [1/11]? Literature reference for SED data (2)
113 A1 --- Set [RGB] Sample membership: Radio, Gamma-ray, or Both
--------------------------------------------------------------------------------
Note (2): Reference as follows:
1 = Chang 2010, PhD thesis, Max-Planck-Institut fur Radioastronomie
2 = Abdo et al. 2010, Cat. J/ApJ/716/30
3 = Abdo et al. 2010, Cat. J/ApJS/188/405
4 = Meyer et al. 2011, ApJ, submitted
5 = Nieppola et al. 2006, Cat. J/A+A/445/441
6 = Nieppola et al. 2008, Cat. J/A+A/488/867
7 = Aatrokoski et al. 2011A&A...536A..15P 2011A&A...536A..15P
8 = Tavecchio et al. 2010MNRAS.401.1570T 2010MNRAS.401.1570T
9 = Ruger et al. 2010MNRAS.401..973R 2010MNRAS.401..973R
10 = Impey & Neugebauer 1988AJ.....95..307I 1988AJ.....95..307I
11 = 2LAC catalog, Ackermann et al. 2011ApJ...743..171A 2011ApJ...743..171A
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- Name IAU name (JHHMM+DDMM)
12- 19 A8 --- BName IAU name (HHMM+DDd; B1950)
21- 31 A11 "YYYY/MMM/DD" Epoch VLBA observation date
33- 37 F5.2 Jy Ftot [0.05/24.38] Total 15GHz VLBA flux density
39- 43 F5.2 Jy Fmed ? Single dish OVRO 15GHz median flux
density during the 11 month Fermi era
44 A1 --- f_Fmed [a] a=UMRAO 14.5GHz data
46- 50 F5.2 Jy Farc ? Arcsecond scale 15GHz flux density
52 A1 --- l_Gr Limit flag on Gr
53- 59 F7.1 --- Gr [2.4/14584] Ratio of average >100MeV
γ-ray energy luminosity to 15GHz
radio luminosity
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- Name IAU name (JHHMM+DDMM)
12- 19 A8 --- BName IAU name (HHMM+DDd; B1950)
21- 22 I2 deg OA [5/68]? Opening angle of the jet
24- 27 I4 deg PA [-180/180]? Position angle of parsec-scale jet
29 A1 --- l_Tb Limit flag on Tb
30- 33 F4.1 [K] Tb [8.5/13.9] log of core brightness temperature
35 A1 --- l_ml Limit flag on ml
36- 39 F4.2 % ml [0.04/9.4]? Fractional linear polarization of
the core
41- 43 I3 deg EVPA [0/180]? Linear polarization electric vector
position angle at the location of the core
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Emmanuelle Perret [CDS] 06-Mar-2013