Search Results - "Homan, D"

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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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.

“…Abstract 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…”
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Residual Entropy as a Diagnostic and Stopping Metric for CLEAN by Homan, D. C., Roth, J. S., Pushkarev, A. B.

“…Abstract 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…”
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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.

“…Abstract We present multiepoch, parsec-scale core brightness temperature observations of 447 active galactic nucleus (AGN) jets from the MOJAVE and 2 cm Survey…”
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The Inner Jet of the Radio Galaxy M87 by Kovalev, Y. Y, Lister, M. L, Homan, D. C, Kellermann, K. I

“…We report new 2 cm VLBA images of the inner radio jet of M87 showing a limb-brightened structure and unambiguous evidence for a faint 3 mas long counterfeature…”
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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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Sub-Milliarcsecond Imaging of Quasars and Active Galactic Nuclei. III. Kinematics of Parsec-scale Radio Jets by Kellermann, K. I, Lister, M. L, Homan, D. C, Vermeulen, R. C, Cohen, M. H, Ros, E, Kadler, M, Zensus, J. A, Kovalev, Y. Y

“…We report the results of a 15 GHz (2 cm) multiepoch Very Long Baseline Array (VLBA) program, begun in 1994 to study the outflow in radio jets ejected from…”
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eRASSt J074426.3 + 291606: prompt accretion disc formation in a ‘faint and slow’ tidal disruption event by Malyali, A, Liu, Z, Merloni, A, Rau, A, Buchner, J, Ciroi, S, Di Mille, F, Grotova, I, Dwelly, T, Nandra, K, Salvato, M, Homan, D, Krumpe, M

“…ABSTRACT We report on multiwavelength observations of the tidal disruption event (TDE) candidate eRASSt J074426.3 + 291606 (J0744), located in the nucleus of a…”
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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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Erratum: “Monitoring of Jets in Active Galactic Nuclei with VLBA Experiments. XVIII. Kinematics and Inner Jet Evolution of Bright Radio-loud Active Galaxies” (2021, ApJ, 923, 30) by Lister, M. L., Homan, D. C., Kellermann, K. I., Kovalev, Y. Y., Pushkarev, A. B., Ros, E., Savolainen, T.

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The rebrightening of a ROSAT-selected tidal disruption event: repeated weak partial disruption flares from a quiescent galaxy? by Malyali, A, Liu, Z, Rau, A, Grotova, I, Merloni, A, Goodwin, A J, Anderson, G E, Miller-Jones, J C A, Kawka, A, Arcodia, R, Buchner, J, Nandra, K, Homan, D, Krumpe, M

“…ABSTRACT The ROSAT-selected tidal disruption event (TDE) candidate RX J133157.6−324319.7 (J1331) was detected in 1993 as a bright [0.2–2 keV flux of…”
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STUDIES OF THE JET IN BL LACERTAE. I. RECOLLIMATION SHOCK AND MOVING EMISSION FEATURES by Cohen, M H, Meier, D L, Arshakian, T G, Homan, D C, Hovatta, T, Kovalev, Y Y, Lister, M L, Pushkarev, A B, Richards, J L, Savolainen, T

“…Parsec-scale VLBA images of BL Lac at 15 GHz show that the jet contains a permanent quasi-stationary emission feature 0.26 mas (0.34 pc projected) from the…”
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MOJAVE – XXI. Decade-long linear polarization variability in AGN jets at parsec scales by Zobnina, D I, Aller, H D, Aller, M F, Homan, D C, Kovalev, Y Y, Lister, M L, Pashchenko, I N, Pushkarev, A B, Savolainen, T

“…ABSTRACT Using stacking of images obtained at different epochs, we studied the variability properties of linear polarization of active galactic nucleus (AGN)…”
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The long-term broad-line responsivity in MKN 110 by Homan, D, Lawrence, A, Ward, M, Bruce, A, Landt, H, MacLeod, C, Elvis, M, Wilkes, B, Huchra, J P, Peterson, B M

“…ABSTRACT We examine the long-term history of the optical spectrum of the extremely variable Active Galactic Nucleus (AGN) MKN 110. By combining various…”
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A radio flare associated with the nuclear transient eRASSt J234403−352640: an outflow launched by a potential tidal disruption event by Goodwin, A J, Anderson, G E, Miller-Jones, J C A, Malyali, A, Grotova, I, Homan, D, Kawka, A, Krumpe, M, Liu, Z, Rau, A

“…ABSTRACT We present an extensive radio monitoring campaign of the nuclear transient eRASSt J234402.9−352640 with the Australia Telescope Compact Array, one of…”
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A Connection Between Apparent VLBA Jet Speeds and Initial Active Galactic Nucleus Detections Made by the Fermi Gamma-Ray Observatory by Lister, M. L, Homan, D. C, Kadler, M, Kellermann, K. I, Kovalev, Y. Y, Ros, E, Savolainen, T, Zensus, J. A

“…In its first three months of operations, the Fermi Gamma-Ray Observatory has detected approximately one quarter of the radio-flux-limited MOJAVE sample of…”
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Improving the selection of changing-look AGNs through multiwavelength photometric variability by López-Navas, E, Sánchez-Sáez, P, Arévalo, P, Bernal, S, Graham, M J, Hernández-García, L, Homan, D, Krumpe, M, Lamer, G, Lira, P, Martínez-Aldama, M L, Merloni, A, Ríos, S, Salvato, M, Stern, D, Tubín-Arenas, D

“…ABSTRACT We present second epoch optical spectra for 30 changing-look (CL) candidates found by searching for Type-1 optical variability in a sample of active…”
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Comparison of spatial and temporal variations of aerosol optical thickness and particulate matter over Europe by Koelemeijer, R.B.A., Homan, C.D., Matthijsen, J.

“…To mitigate the harmful effect of particulates on human health, EU wide limit values for concentrations have been set. However, particulate matter (PM)…”
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STUDIES OF THE JET IN BL LACERTAE. II. SUPERLUMINAL ALFVÉN WAVES by Cohen, M. H., Meier, D. L., Arshakian, T. G., Clausen-Brown, E., Homan, D. C., Hovatta, T., Kovalev, Y. Y., Lister, M. L., Pushkarev, A. B., Richards, J. L., Savolainen, T.

“…ABSTRACT We study the kinematics of ridge lines on the parsec-scale jet of the active galactic nucleus BL Lacertae. We show that the ridge lines display…”
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