2015MNRAS.450L..57G

Query : 2015MNRAS.450L..57G

2015MNRAS.450L..57G - Mon. Not. R. Astron. Soc., 450, L57-L60 (2015/June-2)

VLBI observation of the newly discovered z = 5.18 quasar SDSS J0131-0321.

GABANYI K.E., CSEH D., FREY S., PARAGI Z., GURVITS L.I., AN T. and ZHANG Y.K.

Abstract (from CDS):

Few high-redshift, radio-loud quasars are known to date. The extremely luminous, radio-bright quasar, SDSS J013127.34-032100.1 was recently discovered at a redshift of z = 5.18. We observed the source with high resolution very long baseline interferometry (VLBI) at 1.7 GHz with the European VLBI Network (EVN) and found a single compact radio component. We estimated a lower limit to the brightness temperature of the detected radio component, TB ∼ 1011 K. Additionaly, when compared to archival radio data, the source showed significant flux density variation. These two findings are indicative of the blazar nature of the source.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): techniques: interferometric - galaxies: active - galaxies: high-redshift - quasars: individual: SDSS J013127.34-032100.1

Simbad objects: 5

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Number of rows : 5
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 J012335.7-034839 AG? 01 23 35.77473822 -03 48 39.3142790           ~ 14 1
2 QSO J0131-0321 QSO 01 31 27.3474070344 -03 21 00.075737592           ~ 47 0
3 QSO J0906+6930 Bla 09 06 30.74874670 +69 30 30.8287169       21.65   ~ 96 1
4 7C 102336.6+255813 QSO 10 26 23.62115 +25 42 59.4292   24.98 23.18     ~ 86 1
5 QSO J1146+4037 QSO 11 46 57.7910518704 +40 37 08.602166820   24.80 22.78     ~ 60 0

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