1999MNRAS.309..474L

Query : 1999MNRAS.309..474L

1999MNRAS.309..474L - Mon. Not. R. Astron. Soc., 309, 474-480 (1999/October-3)

Upper limits on K-band polarization in three high-redshift radio galaxies: 53W091, 3C 441 and MRC 0156-252.

LEYSHON G., DUNLOP J.S. and EALES S.A.

Abstract (from CDS):

We present the results of K-band imaging polarimetry of three radio galaxies, including the very red and apparently old z=1.55 galaxy 53W091. We find weak evidence for polarization in components of 3C 441 and in the south-eastern companion of 53W091, but no evidence of significant polarization in 53W091 itself. We also find strong evidence that MRC 0156-252 is unpolarized. We present upper limits for the K-band polarization of all three sources. For 53W091, the lack of significant K-band polarization provides further confidence that its red R-K colour can be attributed to a mature stellar population, consistent with the detailed analyses of its ultraviolet spectral-energy distribution which indicate a minimum age of 2-3.5Gyr.

Abstract Copyright: 1999, Royal Astronomical Society

Journal keyword(s): polarization - galaxies: active - galaxies: individual: LBDS 53W091 - galaxies: individual: MRC 0156-252 - galaxies: individual: 3C 441 - infrared: galaxies

Nomenclature: Fig.3, Table 2: [LDE99] 3C 441 A (Nos E-H, J).

CDS comments: Fig.1: field of WSTB 53W091, [SDS97] Galaxy 3a, 4. Fig.3: objects 'a' = [EC90] 3C 441 a. Table 2: 'Star S' (3C 441 S) not identified.

Simbad objects: 17

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Number of rows : 17
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 3C 22.0 Sy1 00 50 56.21976 +51 12 03.3552   22.0       ~ 153 1
2 3C 41.0 rG 01 26 44.388 +33 13 11.22   21       ~ 172 1
3 MRC 0156-252 rG 01 58 33.480 -24 59 32.01   22.7       ~ 58 1
4 3C 114 rG 04 20 22.104 +17 53 54.82   22       ~ 72 2
5 3C 265.0 Sy1 11 45 28.95577 +31 33 47.2434   20.0       ~ 250 1
6 3C 277.2 Sy1 12 53 32.425 +15 42 25.29   21.5       ~ 152 1
7 4C 02.37 rG 13 39 32.44801 +01 45 22.5898           ~ 21 1
8 3C 324.0 Sy1 15 49 49.170 +21 25 39.50   21.5       ~ 312 1
9 WSTB 53W91 rG 17 22 32.73 +50 06 01.9           ~ 79 0
10 [SDS97] Galaxy 4 G 17 22 35.7 +50 06 03           ~ 2 0
11 [SDS97] Galaxy 3a G 17 22 35.7 +50 06 04           ~ 3 0
12 3C 356 QSO 17 24 20.232 +50 57 14.47   21.5 21.5     ~ 225 1
13 3C 441 rG 22 06 04.917 +29 29 20.01   21.0       ~ 198 3
14 HD 215806 * 22 46 40.2387415872 +58 17 43.950809976 9.05 9.52 9.23     O 58 0
15 [EC90] 3C 441 c Rad ~ ~           ~ 3 0
16 [EC90] 3C 441 d Rad ~ ~           ~ 2 0
17 [EC90] 3C 441 a Rad ~ ~           ~ 3 0

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