Results 61 to 70 of about 45,937 (210)

Relativistic jets in narrow-line Seyfert 1 galaxies. New discoveries and open questions

EPJ Web of Conferences, 2013
Before the launch of the Fermi satellite only two classes of AGNs were known to produce relativistic jets and thus emit up to the γ-ray energy range: blazars and radio galaxies, both hosted in giant elliptical galaxies.
D’Ammando F., Orienti M., Finke J., Larsson J., Giroletti M.   +4 more
doaj   +1 more source

Stars Bisected by Relativistic Blades

The Astrophysical Journal Letters, 2023
We consider the dynamics of an equatorial explosion powered by a millisecond magnetar formed from the core collapse of a massive star. We study whether these outflows—generated by a priori magneto-centrifugally driven, relativistic magnetar winds—might ...
Marcus DuPont, Andrew MacFadyen
doaj   +1 more source

Formation of relativistic MHD jets: stationary state solutions & numerical simulations [PDF]

, 2008
We discuss numerical results of relativistic magnetohydrodynamic (MHD) jet formation models. We first review some examples of stationary state solutions treating the collimation and acceleration process of relativistic MHD jets.
Fendt, Christian, Memola, Elisabetta
core   +1 more source

Modeling the Detectability of Energetic Heliospheric Ions at Pluto During the New Horizons Flyby

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract We investigate the detectability of heliospheric helium ions at energies up to 100 keV by the New Horizons (NH) spacecraft during its flyby through Pluto's induced magnetosphere. The Pluto Energetic Particle Spectrometer Science Investigation energetic ion detector observed a reduction in their flux by an order of magnitude as the spacecraft ...
Randall T. Ruch, Sven Simon, Peter Kollmann, C. Michael Haynes   +3 more
wiley   +1 more source

Validation of VERB‐3D Simulation Results in Response to the COSPAR ISWAT Challenge

Space Weather, Volume 24, Issue 5, May 2026.
Abstract In response to the first long‐term simulation challenge issued by the COSPAR International Space Weather Action Team (ISWAT) G3‐04 team (“Internal Charging Effects and the Relevant Space Environment”), we evaluate the performance of the Versatile Electron Radiation Belt‐3D model by simulating the radiation belt electron dynamics for the entire
Xingzhi Lyu, Dedong Wang, Miroslav Hanzelka, Shangchun Teng, Alexander Y. Drozdov, Angelica Castillo, Yuri Y. Shprits   +6 more
wiley   +1 more source

Discovery of synchrotron emission from a YSO jet

EPJ Web of Conferences, 2013
Synchrotron emission at radio wavelengths is commonly found in relativistic jets from active galactic nuclei (AGNs) and microquasars and allows the study of the magnetic field in these kind of jets.
Carrasco-González Carlos, Rodríguez Luis F., Anglada Guillem, Martí Josep, Torrelles Jose M., Osorio Mayra   +5 more
doaj   +1 more source

CHANDRA Observations of X-ray Jet Structure on kpc to Mpc Scales

, 2003
With its exquisite spatial resolution of better than 0.5 arcsecond, the Chandra observatory is uniquely capable of resolving and studying the spatial structure of extragalactic X-ray jets on scales of a few to a few hundred kilo-parsec.
B.P. Miller, Celotti, D.A. Schwartz, D.L. Jauncey, D.M. Worrall, D.W. Murphy, Dermer, E.S. Perlman, Felten, Ghisellini, H.L. Marshall, J.E.J. Lovell, M. Birkinshaw, Marshall, Pen, R.A. Preston, Schwartz, Tavecchio, Wilson   +18 more
core   +2 more sources

Could Narrow Bipolar Events Serve as a Distinct Lightning Proxy for Revealing Overshooting Thunderclouds Development?

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Narrow bipolar events (NBEs) are often generated in overshooting thunderclouds (OT) penetrating the stratosphere. However, how and under what conditions OT produces such discharges remains unclear. With 3‐year lightning observations and simultaneous cloud top brightness temperature measurements over South China, we developed a more accurate OT
Baojun Wu, Feifan Liu, Baoyou Zhu, Gaopeng Lu, Wenhao Xu, Ming Luo, Weitao Lyu, Jiuhou Lei   +7 more
wiley   +1 more source

The Relativistic Outflow Driven by the Large-scale Magnetic Field from an Accretion Disk

The Astrophysical Journal
Outflows/jets are ubiquitous in a wide range of astrophysical objects, yet the mechanisms responsible for their generation remain elusive. One hypothesis is that they are magnetically driven.
Wei Xie, Wei-Hua Lei
doaj   +1 more source

Deflection of jets induced by jet-cloud & jet-galaxy interactions [PDF]

, 2000
The model first introduced by Raga & Canto (1996) in which astrophysical jets are deflected on passing through an isothermal high density region is generalised by taking into account gravitational effects on the motion of the jet as it crosses the high ...
Longair, M. S., Mendoza, S.
core   +2 more sources