Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Eric Clausen-Brown"'
Autor:
Preeti Kharb, Eric G. Blackman, Eric Clausen-Brown, Mousumi Das, Daniel A. Schwartz, Aneta Siemiginowska, Smitha Subramanian, Sravani Vaddi
Publikováno v:
The Astrophysical Journal, Vol 962, Iss 2, p 180 (2024)
We report superluminal jet motion with an apparent speed of β _app = 1.65 ± 0.57 in the radio-quiet (RQ) low-ionization nuclear emission-line region (LINER) galaxy KISSR 872. This result comes from two-epoch phase-referenced very long baseline inte
Externí odkaz:
https://doaj.org/article/130deade01eb422eae6a3e304a9e8b71
Autor:
Xiaofeng Zhu, Thomas Lin, Vishal Anand, Matthew Calderwood, Eric Clausen-Brown, Gord Lueck, Wen-Wai Yim, Cheng Wu
The core challenge in numerous real-world applications is to match an inquiry to the best document from a mutable and finite set of candidates. Existing industry solutions, especially latency-constrained services, often rely on similarity algorithms
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::147bf88962e5c7eb3506541b9fa3abef
Autor:
Maxim Lyutikov, Eric Clausen-Brown
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 426:1374-1384
The unusually short durations, high luminosities, and high photon energies of the Crab Nebula gamma-ray flares require relativistic bulk motion of the emitting plasma. We explain the Crab flares as the result of randomly oriented relativistic "minije
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c865fdab15a1b1407867f5eec6584188
https://doi.org/10.1111/j.1365-2966.2012.21349.x
https://doi.org/10.1111/j.1365-2966.2012.21349.x
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 419:3048-3059
We present an analytical class of equilibrium solutions for the structure of relativistic sheared and rotating magnetized jets that contain no boundary current sheets. We demonstrate the overall dynamical stability of these solutions and, most import
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34ed4ce3b8fbe679e421341ff8379203
https://doi.org/10.1111/j.1365-2966.2011.19946.x
https://doi.org/10.1111/j.1365-2966.2011.19946.x
Publikováno v:
Nature. 510:126-128
A study of 76 radio-loud active galaxies shows that the magnetic field in the bipolar jet that emanates from each galaxy is tightly correlated with the luminosity of the accretion disk; the jet-launching regions of these galaxies are therefore though
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99a7d330fa70a44a4c3773f83cc5541d
https://doi.org/10.1038/nature13399
https://doi.org/10.1038/nature13399
Autor:
T. G. Arshakian, Matthew L. Lister, Alexander B. Pushkarev, J. L. Richards, Yuri Y. Kovalev, Maurice Cohen, D. C. Homan, Tuomas Savolainen, Eric Clausen-Brown, Talvikki Hovatta, David L. Meier
We study the kinematics of ridge lines on the pc-scale jet of the active galactic nucleus BL Lac. We show that the ridge lines display transverse patterns that move superluminally downstream, and that the moving patterns are analogous to waves on a w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5173f595e6c12098a5546e09cd14e413
http://arxiv.org/abs/1409.3599
http://arxiv.org/abs/1409.3599
MOJAVE: MONITORING OF JETS IN ACTIVE GALACTIC NUCLEI WITH VLBA EXPERIMENTS.XI.SPECTRAL DISTRIBUTIONS
Autor:
Matthew L. Lister, Yuri Y. Kovalev, Talvikki Hovatta, Tuomas Savolainen, Eric Clausen-Brown, Margo F. Aller, Alexander B. Pushkarev, Hugh D. Aller, Daniel C. Homan
We have obtained milliarcsecond-scale spectral index distributions for a sample of 190 extragalactic radio jets through the MOJAVE project. The sources were observed in 2006 at 8.1, 8.4, 12.1, and 15.4 GHz, and we study the four-frequency spectrum in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::103f3bbfcae9c8dc4334baa355a7b15d
https://aaltodoc.aalto.fi/handle/123456789/21903
https://aaltodoc.aalto.fi/handle/123456789/21903
Autor:
Tuomas Savolainen, Talvikki Hovatta, Eric Clausen-Brown, Thomas P. Krichbaum, Alexander B. Pushkarev, Yuri Y. Kovalev, Mohammad Zamaninasab, Matthew L. Lister
Most current theoretical models link the launching of relativistic jets from active galactic nuclei to the presence of twisted magnetic fields close to the supermassive black hole. While these models predict a large-scale, ordered, helical magnetic f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06351a8d21450b1c808e6a87552fa523
https://resolver.caltech.edu/CaltechAUTHORS:20140114-103657735
https://resolver.caltech.edu/CaltechAUTHORS:20140114-103657735
Autor:
Matthew L. Lister, Tuomas Savolainen, Eric Clausen-Brown, Yuri Y. Kovalev, Alexander B. Pushkarev
We present a new method to measure Gamma*theta_j in flux-limited samples of active galactic nuclei (AGN) jets, where Gamma is the bulk Lorentz factor and theta_j is the jet's half-opening angle. The Gamma*theta_j parameter is physically important for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2830e0445b1b70fb35e1061512a90c14
http://arxiv.org/abs/1301.5751
http://arxiv.org/abs/1301.5751
We report that active galactic nucleus (AGN) jets are causally connected on parsec scales, based on 15 GHz Very Long Baseline Array (VLBA) data from a sample of 133 AGN jets. This result is achieved through a new method for measuring the product of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::373d1be8c79535fdfc710a506be71703