Results 91 to 100 of about 719 (181)

Monster Radio Jet (>66 kpc) Observed in Quasar at z ∼​​​​​ 5

open access: yesThe Astrophysical Journal Letters
We present the discovery of a large extended radio jet associated with the extremely radio-loud quasar J1601+3102 at z  ∼​​​​​ 5 from subarcsecond resolution imaging at 144 MHz with the International LOFAR Telescope.
Anniek J. Gloudemans   +8 more
doaj   +1 more source

A LARGE AREA SEARCH FOR RADIO-LOUD QUASARS WITHIN THE EPOCH OF REIONIZATION [PDF]

open access: green, 2004
M. J. Jarvis   +5 more
openalex   +1 more source

Do All the Quasars and High-excitation Radio Galaxies (HERGs) in the 3CRR Catalog Contain a Magnetically Arrested Disk (MAD)?

open access: yesThe Astrophysical Journal
Based on the magnetization, an accretion disk with a large-scale magnetic field can be separated into either standard and normal evolution or magnetically arrested disk (MAD), which are difficult to identify from observations. It is still unclear whether
Shuang-Liang Li, Wenwen Zuo, Xinwu Cao
doaj   +1 more source

High-Redshift, Radio-Loud Quasars

open access: yes, 2000
I discuss two programs to study radio-loud quasars at high (z>4) redshift. Quasars are the most luminous, non-transient objects known and are observed to the earliest cosmic epochs. At lower redshifts, radio-loud quasars are associated with host galaxies having deVaucoleurs profiles. By association, identifying and studying a sample of high-redshift,
openaire   +2 more sources

Discovery of Radio-Loud Broad Absorption Line Quasars Using Ultraviolet Excess and Deep Radio Selection [PDF]

open access: bronze, 1998
M. S. Brotherton   +7 more
openalex   +1 more source

Circumgalactic Environments Around Distant Quasars 3C 9 and 4C 05.84

open access: yesThe Astrophysical Journal
We present results from the Quasar hosts Unveiled by high Angular Resolution Techniques survey studying the circumgalactic medium (CGM) by observing rest-frame UV emission lines Ly α , C iv , and He ii around two radio-loud quasars, 3C 9 ( z = 2.02) and ...
Sanchit Sabhlok   +8 more
doaj   +1 more source

Electromagnetic counterparts to massive black-hole mergers. [PDF]

open access: yesLiving Rev Relativ, 2022
Bogdanović T, Miller MC, Blecha L.
europepmc   +1 more source

Home - About - Disclaimer - Privacy