2004AJ....127.1977O

Query : 2004AJ....127.1977O

2004AJ....127.1977O - Astron. J., 127, 1977-1981 (2004/April-0)

VLBI observations of the gigahertz-peaked spectrum galaxy PKS 1934-638.

OJHA R., FEY A.L., JOHNSTON K.J., JAUNCEY D.L., TZIOUMIS A.K. and REYNOLDS J.E.

Abstract (from CDS):

We present 8.4 GHz VLBI observations of the gigahertz-peaked spectrum source PKS 1934-638 made with the Australian Long Baseline Array. Our observations confirm the compact double nature of the source and yield measured separations of 42.7±0.4 mas at epoch 2002 July and 42.6±0.3 mas at epoch 2002 November, which, when combined with previous observations, yield a rate of separation of 23±10 µas/yr. This result suggests that over a timescale of 32.1 yr, the separation of the two components has changed marginally. Nominally, this provides support to the emerging consensus that compact symmetric objects (CSOs) are young sources. Our measurement of hot spot separation has, to our knowledge, the longest temporal coverage for a CSO reported in the literature.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Active - galaxies: individual (PKS 1934-638) - Galaxies: Jets - Galaxies: Kinematics and Dynamics

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 ICRF J193925.0-634245 Sy2 19 39 25.0245304992 -63 42 45.640373400   18.87 18.37 17.64   ~ 1332 2

Query : 2004AJ....127.1977O

Basic data :
ICRF J193925.0-634245 -- Seyfert 2 Galaxy
Other object types: otypes_help 		Rad (2020A&A,ICRF,...), AGN (2019MNRAS,[HB91],...), G (2011MNRAS,LEDA,...), cm (AT20G,ATPMN), MIR (WISEA,WISE), Sy2 (2010A&A), QSO (2016A&A), GiP ([FBN87]), * (Gaia), NIR (2MASS)
ICRS coord. (ep=J2000) : 		19 39 25.0245304992 -63 42 45.640373400 (Optical) [ 0.4852 0.5479 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		19 34 47.5891817654 -63 49 37.795201484 [ 0.4852 0.5479 90 ]
Gal coord. (ep=J2000) : 		332.7461263635278 -29.3893399426806 [ 0.4852 0.5479 90 ]
Proper motions mas/yr : 		0.785 0.471 [0.606 0.692 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 49490 [~] / z(spectroscopic) 0.18129000067700 [~] / cz 54349.3749137795 [~]
   (MIR) D 2019MNRAS.487.1823L
Parallaxes (mas): 		0.5329 [0.7576] A 2020yCat.1350....0G
Fluxes (7) :
B 18.87 [~] D 2008MNRAS.384..775M
V 18.37 [~] D 2016MNRAS.459.4259R
R 17.64 [~] D 2016MNRAS.459.4259R
G 19.990898 [0.007087] C 2020yCat.1350....0G
J 16.147 [0.125] C 2003yCat.2246....0C
H 15.602 [0.169] D 2003yCat.2246....0C
K 14.976 [0.143] C 2003yCat.2246....0C
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Identifiers (38) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

ICRF J193925.0-634245 2MASS J19392503-6342455 WISE J193924.90-634245.4 [VV2000c] J193925.0-634246
AT20G J193924.8-634245 MRC 1934-638 WMAP J1938-6343 [VV2003c] J193925.0-634246
AT20G J193924-634245 PKS J1939-6342 WMAP J1938-6341 [VV2006c] J193925.0-634246
ATPMN J193925.0-634245 PKS 1934-638 [CH94] 1934-638 [VV2010c] J193925.0-634246
GLEAM J193925-634246 PKS 1934-63 [FBN87] G1 [VV98c] J193925.0-634246
Gopal 1934-638 PMN J1939-6342 [HB91] 1934-638 Gaia DR2 6440702651792523136
IERS B1934-638 RORF 1934-638 [HSN2016] J294.85-63.71 Gaia DR3 6440702651792523136
1Jy 1934-638 SUMSS J193925-634243 [MEM2008] 260 Gaia DR1 6440702651792523136
1Jy 1934-63 VSOP J1939-6342 [RHL2016] 26
LEDA 89059 WISEA J193924.90-634245.4 [RSE2004] J1939-6343

References (1332 between 1850 and 2026) (Total 1332)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 3    Plx : 2    PM : 2   

   

Observing logs
Herschel : 2    ISO : 1   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : ICRF J193925.0-634245

Link by name to the catalogue in VizieR :

IERS B1934-638 2MASS J19392503-6342455 PKS J1939-6342 PKS 1934-638 PKS 1934-63
PMN J1939-6342 SUMSS J193925-634243 VSOP J1939-6342 WISEA J193924.90-634245.4 WISE J193924.90-634245.4
WMAP J1938-6343 WMAP J1938-6341 Gaia DR2 6440702651792523136 Gaia DR3 6440702651792523136 Gaia DR1 6440702651792523136

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