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Space VLBI Observations of Mkn 501
被引：7
作者：
Giovannini, G
Cotton, WD
Feretti, L
Lara, L
Venturi, T
机构：
[1] Univ Bologna, Dipartimento Fis, I-40126 Bologna, Italy
[2] CNR, Ist Radioastron, I-40129 Bologna, Italy
[3] Natl Radio Astron Observ, Charlottesville, VA 22903 USA
[4] CSIC, Inst Astrofis Andalucia, E-18080 Granada, Spain
来源：
VSOP RESULTS AND THE FUTURE OF SPACE VLBI
|
2000年
/
26卷
/
04期
关键词：
D O I：
10.1016/S0273-1177(99)01193-X
中图分类号：
V [航空、航天];
学科分类号：
08 ;
0825 ;
摘要：
We present here two epochs of Space VLBI Observations at 18 cm of the BL-Lac type object Mkn 501. Thanks to the high resolution of these new data we have found that the inner jet is centrally brightened at its beginning but becomes extended and limb brightened at similar to 8 mas from the core. Moreover a comparison between the two epochs shows the presence of a proper motion with apparent velocity = 6.7c. Observational data have been used to constrain the jet velocity and orientation. (C) 2000 COSPAR. Published by Elsevier Science Ltd.
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页码：693 / 696
页数：4
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