Measurement of the integrated Faraday rotations of BL Lac objects

被引:24
作者
Pushkarev, AB [1 ]
机构
[1] PN Lebedev Phys Inst, Ctr Astro Space, Moscow 117924, Russia
关键词
D O I
10.1134/1.1398915
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present the results of multi-frequency polarization VLA observations of radio sources from the complete sample of northern, radio-bright BL Lac objects compiled by H. Kuhr and G. Schmidt. These were used to determine the integrated rotation measures of 18 sources, 15 of which had never been measured previously, which hindered analysis of the intrinsic polarization properties of objects in the complete sample. These measurements make it possible to correct the observed orientations of the linear polarizations of these sources for the effect of Faraday rotation. The most probable origin for Faraday rotation in these objects is the Galactic interstellar medium. The results presented complete measurements of the integrated rotation measures for all 34 sources in the complete sample of BL Lac objects. (C) 2001 MAIK "Nauka/Interperiodica".
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页码:667 / 675
页数:9
相关论文
共 11 条
[2]   The λ=6 cm VLBI polarization structure of nine BL Lacertae objects [J].
Gabuzda, DC ;
Pushkarev, AB ;
Cawthorne, TV .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1999, 307 (03) :725-736
[3]  
KRAUS JD, 1967, RADIO ASTRONOMY
[4]  
KUHR H, 1990, ASTRON J, V99, P1, DOI 10.1086/115305
[5]  
PACHOLCZYK AG, 1970, RADIO ASTROPHYSICS
[6]  
REYNOLDS C, 2001, IN PRESS MON NOT R A
[7]   BL-LACS ROTATION MEASURE [J].
RUDNICK, L ;
JONES, TW ;
EDGAR, BK ;
PEDELTY, JA .
ASTRONOMICAL JOURNAL, 1984, 89 (03) :316-318
[8]   ROTATION MEASURES FOR COMPACT VARIABLE RADIO-SOURCES [J].
RUDNICK, L ;
JONES, TW .
ASTRONOMICAL JOURNAL, 1983, 88 (04) :518-526
[9]  
RUSK R, 1988, THESIS U TORONTO
[10]   THE FARADAY-ROTATION MEASURES OF EXTRA-GALACTIC RADIO-SOURCES [J].
SIMARDNORMANDIN, M ;
KRONBERG, PP ;
BUTTON, S .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1981, 45 (01) :97-111