Search Results - "Pushkarev, A A"

Significant core shift variability in parsec-scale jets of active galactic nuclei by Plavin, A V, Kovalev, Y Y, Pushkarev, A B, Lobanov, A P

“…Abstract The apparent position of jet base (core) in radio-loud active galactic nuclei changes with frequency because of synchrotron self-absorption. Studying…”
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MOJAVE. XVII. Jet Kinematics and Parent Population Properties of Relativistically Beamed Radio-loud Blazars by Lister, M. L., Homan, D. C., Hovatta, T., Kellermann, K. I., Kiehlmann, S., Kovalev, Y. Y., Max-Moerbeck, W., Pushkarev, A. B., Readhead, A. C. S., Ros, E., Savolainen, T.

“…We present results from a parsec-scale jet kinematics study of 409 bright radio-loud active galactic nuclei (AGNs) based on 15 GHz Very Long Baseline Array…”
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Milky Way scattering properties and intrinsic sizes of active galactic nuclei cores probed by very long baseline interferometry surveys of compact extragalactic radio sources by Pushkarev, A. B., Kovalev, Y. Y.

“…We have measured the angular sizes of radio cores of active galactic nuclei (AGNs) and analysed their sky distributions and frequency dependences to study…”
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Core shift in parabolic accelerating jets by Nokhrina, E E, Pushkarev, A B

“…ABSTRACT The core-shift method is a powerful method to estimate the physical parameters in relativistic jets from active galactic nuclei. The classical…”
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A transition from parabolic to conical shape as a common effect in nearby AGN jets by Kovalev, Y Y, Pushkarev, A B, Nokhrina, E E, Plavin, A V, Beskin, V S, Chernoglazov, A V, Lister, M L, Savolainen, T

“…ABSTRACT Observational studies of collimation in jets in active galactic nuclei (AGN) are a key to understanding their formation and acceleration processes. We…”
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Physical parameters of active galactic nuclei derived from properties of the jet geometry transition region by Nokhrina, E E, Kovalev, Y Y, Pushkarev, A B

“…ABSTRACT We use the observed jet boundary transition from parabolic to conical shape, which was previously discovered to be a possible common property in…”
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Monitoring Of Jets in Active Galactic Nuclei with VLBA Experiments. XVIII. Kinematics and Inner Jet Evolution of Bright Radio-loud Active Galaxies by Lister, M. L., Homan, D. C., Kellermann, K. I., Kovalev, Y. Y., Pushkarev, A. B., Ros, E., Savolainen, T.

“…We have analyzed the parsec-scale jet kinematics of 447 bright radio-loud active active galactic nuclei (AGN), based on 15 GHz Very Long Baseline Array (VLBA)…”
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Residual Entropy as a Diagnostic and Stopping Metric for CLEAN by Homan, D. C., Roth, J. S., Pushkarev, A. B.

“…We propose the use of entropy, measured from the spatial and flux distribution of pixels in the residual image, as a potential diagnostic and stopping metric…”
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Multiplex label-free biosensor for detection of autoantibodies in human serum: Tool for new kinetics-based diagnostics of autoimmune diseases by Orlov, A.V., Pushkarev, A.V., Znoyko, S.L., Novichikhin, D.O., Bragina, V.A., Gorshkov, B.G., Nikitin, P.I.

“…A multiplex label-free biosensor is developed for diagnostics of autoimmune diseases by highly sensitive measuring in human serum both critical characteristics…”
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MOJAVE. XIX. Brightness Temperatures and Intrinsic Properties of Blazar Jets by Homan, D. C., Cohen, M. H., Hovatta, T., Kellermann, K. I., Kovalev, Y. Y., Lister, M. L., Popkov, A. V., Pushkarev, A. B., Ros, E., Savolainen, T.

“…We present multiepoch, parsec-scale core brightness temperature observations of 447 active galactic nucleus (AGN) jets from the MOJAVE and 2 cm Survey programs…”
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Determination of the Spectrum of a Pulsed Ion Beam from Current and Voltage Oscillograms by Pushkarev, A. I.

“…An algorithm for calculating the energy spectrum of a pulsed ion beam generated by a direct-acting accelerator is presented. The ion spectrum is calculated…”
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Tracing Milky Way scattering by compact extragalactic radio sources by Koryukova, T A, Pushkarev, A B, Plavin, A V, Kovalev, Y Y

“…ABSTRACT We used archival very long baseline interferometry (VLBI) data of active galactic nuclei (AGN) observed from 1.4 to 86 GHz to measure the angular size…”
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Direction of Parsec-scale Jets for 9220 Active Galactic Nuclei by Plavin, A. V., Kovalev, Y. Y., Pushkarev, A. B.

“…The direction of parsec-scale jets in active galactic nuclei (AGNs) is essential information for many astrophysical and astrometric studies, including linear…”
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Multifrequency study of the gamma-ray flaring BL Lacertae object PKS 2233–148 in 2009–2012 by Pushkarev, A B, Butuzova, M S, Kovalev, Y Y, Hovatta, T

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MOJAVE XVI: Multiepoch Linear Polarization Properties of Parsec-scale AGN Jet Cores by Hodge, M. A., Lister, M. L., Aller, M. F., Aller, H. D., Kovalev, Y. Y., Pushkarev, A. B., Savolainen, T.

“…We present an analysis of the core linear polarization properties of 387 parsec-scale active galactic nuclei (AGNs) jets. Using 15 GHz VLBA data, we revisit…”
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Multiple imaging of the quasar 2005 + 403 formed by anisotropic scattering by Koryukova, T A, Pushkarev, A B, Kiehlmann, S, Readhead, A C S

“…ABSTRACT We report on the low Galactic latitude (b = 4${_{.}^{\circ}}$3) quasar 2005 + 403, the second active galactic nuclei, in which we detected a rare…”
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TXS 0128+554: A Young Gamma-Ray-emitting Active Galactic Nucleus with Episodic Jet Activity by Lister, M. L., Homan, D. C., Kovalev, Y. Y., Mandal, S., Pushkarev, A. B., Siemiginowska, A.

“…We have carried out a Chandra X-ray and multifrequency radio Very Long Baseline Array study of the active galactic nucleus (AGN) TXS 0128+554, which is…”
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MOJAVE. XII. ACCELERATION AND COLLIMATION OF BLAZAR JETS ON PARSEC SCALES by Homan, D C, Lister, M L, Kovalev, Y Y, Pushkarev, A B, Savolainen, T, Kellermann, K I, Richards, J L, Ros, E

“…We report on the acceleration properties of 329 features in 95 blazar jets from the MOJAVE Very Long Baseline Array program. Nearly half the features and…”
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A decade of joint MOJAVE–Fermi AGN monitoring: localization of the gamma-ray emission region by Kramarenko, I G, Pushkarev, A B, Kovalev, Y Y, Lister, M L, Hovatta, T, Savolainen, T

“…ABSTRACT Within the MOJAVE VLBA programme (Monitoring of Jets in AGN with VLBA Experiments), we have accumulated observational data at 15 GHz for hundreds of…”
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MOJAVE – XX. Persistent linear polarization structure in parsec-scale AGN jets by Pushkarev, A B, Aller, H D, Aller, M F, Homan, D C, Kovalev, Y Y, Lister, M L, Pashchenko, I N, Savolainen, T, Zobnina, D I

“…ABSTRACT We analysed the parsec-scale linear polarization properties of 436 active galactic nuclei (AGNs) based on 15 GHz polarimetric Very Long Baseline Array…”
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