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Swift J1644+5734: the EVN view

Published online by Cambridge University Press:  23 June 2017

Z. Paragi ,
J. Yang ,
S. Komossa ,
A. van der Horst ,
L. I. Gurvits ,
R. M. Campbell ,
D. Giannios  and
T. An
Z. Paragi
Affiliation:
Joint Institute for VLBI ERIC (JIVE), Postbus 2, NL-7990 AA Dwingeloo, the Netherlands email: zparagi@jive.eu
J. Yang
Affiliation:
Joint Institute for VLBI ERIC (JIVE), Postbus 2, NL-7990 AA Dwingeloo, the Netherlands email: zparagi@jive.eu Dept. of Earth and Space Sciences, Chalmers Univ. of Technology, Onsala Space Observatory SE-439 92 Onsala, Sweden Shanghai Astronomical Observatory, Chinese Acad. of Sciences, 200030 Shanghai, P.R. China
S. Komossa
Affiliation:
QianNan Normal University for Nationalities, Longshan Street, Duyun City of Guizhou Province, China
A. van der Horst
Affiliation:
Dept. of Physics, The George Washington University, 725 21st Street NW, Washington, DC 20052, USA
L. I. Gurvits
Affiliation:
Joint Institute for VLBI ERIC (JIVE), Postbus 2, NL-7990 AA Dwingeloo, the Netherlands email: zparagi@jive.eu Dept. of Astrodynamics and Space Missions, Delft University of Technology, NL-2629 HS Delft, the Netherlands
R. M. Campbell
Affiliation:
Joint Institute for VLBI ERIC (JIVE), Postbus 2, NL-7990 AA Dwingeloo, the Netherlands email: zparagi@jive.eu
D. Giannios
Affiliation:
Dept. of Physics and Astronomy, Purdue University, 525 Northwestern Avenue, West Lafayette, IN 47907, USA
T. An
Affiliation:
Shanghai Astronomical Observatory, Chinese Acad. of Sciences, 200030 Shanghai, P.R. China Key Lab. of Radio Astronomy, Chinese Academy of Sciences, 210008 Nanjing, P.R. China
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Abstract

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A small fraction of Tidal Disruption Events (TDE) produce relativistic jets, evidenced by their non-thermal X-ray spectra and transient radio emission. Here we present milliarcsecond-resolution imaging results on TDE J1644+5734 with the European VLBI Network (EVN). These provide a strong astrometric constraint on the average apparent jet velocity βapp < 0.27, that constrains the intrinsic jet velocity for a given viewing angle.

Keywords

techniques: interferometricastrometryradio continuum: galaxiesgalaxies: activeX-rays: burstsblack hole physics
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S324: New Frontiers in Black Hole Astrophysics , September 2016 , pp. 119 - 122
Copyright
Copyright © International Astronomical Union 2017 

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