T
T. G. Arshakian
Researcher at University of Cologne
Publications - 18
Citations - 435
T. G. Arshakian is an academic researcher from University of Cologne. The author has contributed to research in topics: Blazar & Emission spectrum. The author has an hindex of 9, co-authored 18 publications receiving 406 citations. Previous affiliations of T. G. Arshakian include Isaac Newton Institute.
Papers
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Journal ArticleDOI
Flare-like Variability of the Mg II λ2800 Emission Line in the Γ-Ray Blazar 3C 454.3
J. León-Tavares,J. León-Tavares,V. H. Chavushyan,Víctor M. Patiño-Álvarez,E. Valtaoja,T. G. Arshakian,T. G. Arshakian,Luka Č. Popović,Luka Č. Popović,Merja Tornikoski,A. P. Lobanov,A. P. Lobanov,A. Carraminana,L. Carrasco,Anne Lähteenmäki +14 more
TL;DR: In this article, the authors reported the detection of a statistically significant flare-like event in the Mg II λ2800 emission line of 3C 4543 during the outburst of autumn 2010.
Journal ArticleDOI
Flare-like variability of the Mg II\lambda 2800\AA\ emission line in the gamma-ray blazar 3C 454.3
Jonathan León-Tavares,V. H. Chavushyan,Víctor M. Patiño-Álvarez,Esko Valtaoja,T. G. Arshakian,L. C. Popovic altaffilmark,Merja Tornikoski,A. Lobanov,A. Carraminana,L. Carrasco,Anne Lähteenmäki +10 more
TL;DR: In this article, the authors reported the detection of a statistically significant flare-like event in the Mg II\lambda 2800\AA\ emission line of 3C 454.3 during the outburst of autumn 2010.
Journal ArticleDOI
Studies of the Jet in BL Lacertae. II. Superluminal Alfv\'en Waves
Maurice Cohen,David L. Meier,T. G. Arshakian,Eric Clausen-Brown,D. C. Homan,Talvikki Hovatta,Yuri Y. Kovalev,Matthew L. Lister,Alexander B. Pushkarev,J. L. Richards,Tuomas Savolainen +10 more
TL;DR: In this article, the authors studied the kinematics of ridge lines on the pc-scale jet of the active galactic nucleus BL Lac and showed that the ridge lines display transverse patterns that move superluminally downstream, and that the moving patterns are analogous to waves on a whip.
Journal ArticleDOI
Polarized synchrotron radiation from the Andromeda galaxy M 31 and background sources at 350 MHz
TL;DR: In this paper, the authors derived a data cube in Faraday depth and compared two symmetric ranges of negative and positive Faraday depths and presented a catalogue of 33 polarized sources and their Faraday rotation in the M 31 field.
Journal ArticleDOI
Studies of the jet in bl lacertae. ii. superluminal alfvén waves
Maurice Cohen,David L. Meier,T. G. Arshakian,T. G. Arshakian,Eric Clausen-Brown,Daniel C. Homan,Talvikki Hovatta,Talvikki Hovatta,Yuri Y. Kovalev,Yuri Y. Kovalev,Matthew L. Lister,Alexander B. Pushkarev,Alexander B. Pushkarev,J. L. Richards,Tuomas Savolainen,Tuomas Savolainen +15 more
TL;DR: In this paper, the authors studied the kinematics of ridge lines on the pc-scale jet of the active galactic nucleus BL Lac and showed that the ridge lines display transverse patterns that move superluminally downstream, and that the moving patterns are analogous to waves on a whip.