Results 91 to 100 of about 1,075,291 (208)

Giant Radio Galaxies and Cosmic-Ray Acceleration

The Astrophysical Journal, 2004
Giant radio galaxies (GRGs) are prime and unique laboratories for constraining the plasma processes that accelerate relativistic electrons within large intergalactic volumes. The evidence for short radiative loss times rules out certain scenarios for energy transport within their very large dimensions.
P. P. Kronberg, S. A. Colgate, H. Li, Q. W. Dufton   +3 more
openaire   +1 more source

The Search for Very High Energy γ-rays from Misaligned AGN [PDF]

, 2013
The aim of this work is to study the potential for emission at very high energies (100 GeV) by misaligned active galactic nuclei (AGN) and the future prospects for observations of these objects with the next generation imaging atmospheric Cherenkov ...
CHEESEBROUGH, ALISTAIR
core  

A Comprehensive Study of Morphology and Kinematics in Extended Nebulae Around UV-luminous Quasars at z ≈ 1

The Astrophysical Journal
Gas flows between galaxies and the circumgalactic medium (CGM) play a central role in galaxy evolution and can become observable as giant nebulae when illuminated by quasars. We present an ensemble study of nebulae around 30 UV-luminous quasars at z  ≈ 0.
Zhuoqi (Will) Liu, Sean D. Johnson, Eric F. Bell, Zhijie Qu, Benoît Epinat, Hsiao-Wen Chen, Marc Rafelski, Jennifer I-Hsiu Li, Alexander Beckett, Mandy C. Chen, Sayak Dutta, David DePalma, Gwen C. Rudie, Joop Schaye, Patrick Petitjean, Sebastiano Cantalupo, Elise Fuller, Wolfram Kollatschny, Sebastián López, Nishant Mishra, Sowgat Muzahid, Andrea Travascio, Fakhri S. Zahedy   +22 more
doaj   +1 more source

Mapping Jet-gas Coupling and Energetic Ionized Outflows in High-redshift Radio Galaxies with JWST/NIRSpec

The Astrophysical Journal
We present spatially resolved maps of morphology, kinematics, and energetics of warm ionized gas in six powerful radio galaxies at z  ∼ 3.5-4, using JWST/NIRSpec integral field unit to quantify jet-driven feedback in the early Universe.
Namrata Roy, Timothy Heckman, Alaina Henry, Wuji Wang, Pranav Kukreti   +4 more
doaj   +1 more source

A search for giant radio galaxies in recent deep radio surveys

, 2017
2 pages, no figures, report of the results of a 6-week internship, to appear in Memoria del Verano de la Investigaci\'on de la Pen\'insula de Yucat\'an, JAGUAR ...
Miller, Brissa Gómez, Andernach, Heinz
openaire   +2 more sources

Early assembly of the most massive galaxies [PDF]

, 2009
The current consensus is that galaxies begin as small density fluctuations in the early Universe and grow by in situ star formation and hierarchical merging(1).
Chris A. Collins, Scott T Kay (16045382), Nicola Mehrtens (16047884), Ed Lloyd-Davies, Hoyle, Ben, Hosmer, Mark, Christopher J. Miller, Ben Hoyle, Mehrtens, Nicola, Robert G. Mann, Pedro T. P. Viana, Martin Sahlén (267044), S Adam Stanford (16061237), Mark Hosmer (16070585), Robert C Nichol (16067396), John P Stott (16070582), Martin Sahlén, Sahlen, Martin, John P. Stott, Kathy Romer (4460893), Matt Hilton (6956609), Viana, Pedro T. P., Mann, Robert G., Ben Hoyle (6914513), Stott, John P., Matt Hilton, Robert G Mann (7965452), Andrew Liddle, Stanford, S. Adam, Christopher J Miller (16070591), A. Kathy Romer, Davidson, Michael, Ed Lloyd-Davies (16075100), Romer, A. Kathy, Robert C. Nichol, Andrew Liddle (16042793), Pedro T P Viana (16045379), Nichol, Robert C., Kay, Scott T., Michael J. West, Chris A Collins (16061234), Scott T. Kay, Collins, Chris A., Michael Davidson, Mark Hosmer, West, Michael J., Michael Davidson (699678), S. Adam Stanford, Michael J West (5524436), Liddle, Andrew, Nicola Mehrtens, Miller, Christopher J., Hilton, Matt, Lloyd-Davies, Ed   +53 more
core   +1 more source

88th Annual Meeting of the Meteoritical Society 2026: Abstracts

Meteoritics &Planetary Science, Volume 61, Issue S1, Page S48-S551, August 2026.
wiley   +1 more source

Spectral-ageing analysis of selected distant giant radio galaxies [PDF]

, 2005
Very deep 4.9 GHz observations with the VLA are used to supplement available radio maps at the frequencies of 325 MHz (WENSS, survey) and 1.4 GHz (NVSS survey) in order to study the synchrotron spectra and radiative ages of relativistic particles in the ...
Machalski, J.,, Machalski, Jerzy, Jamrozy, M.,, Jamrozy, Marek   +3 more
core  

The Radio Spectral Energy Distribution and Star Formation Calibration in MIGHTEE-COSMOS Highly Star-forming Galaxies at 1.5 < z < 3.5

The Astrophysical Journal
Studying the radio spectral energy distribution (SED) of distant galaxies is essential for understanding their assembly and evolution over cosmic time.
Fatemeh Tabatabaei, Maryam Khademi, Matt J. Jarvis, Russ Taylor, Imogen H. Whittam, Fangxia An, Reihaneh Javadi, Eric J. Murphy, Mattia Vaccari   +8 more
doaj   +1 more source

The giant radio galaxy 8C0821+695 and its environment

, 2000
11 pages; 8 figures; accepted in A& ...
Lara, L., Mack, K.-H., Lacy, M., Klein, U., Cotton, W.D., Feretti, L., Giovannini, G., Murgia, M.   +7 more
openaire   +3 more sources