Results 131 to 140 of about 39,820 (206)

Hybrid Morphology Radio Sources from the MeerKAT Absorption Line Survey (MALS): Radio, Mid-infrared, and Environmental Characteristics

open access: yesThe Astrophysical Journal
Hybrid morphology radio sources (HyMoRSs) are a rare subclass of radio galaxies that display a Fanaroff–Riley type I (FR I) morphology on one side of the central supermassive black hole and a type II (FR II) morphology on the other.
Souvik Manik   +4 more
doaj   +1 more source

MWA and VLA Observations of Diffuse Radio Lobes in M87

open access: yesThe Astrophysical Journal
This study investigates the projected, quasi-symmetric ∼46 kiloparsec-scale diffuse radio lobes surrounding the giant elliptical galaxy M87, utilizing well-sampled wideband (60 MHz–10.55 GHz) observations from the Murchison Widefield Array and Very Large
Linhui Wu   +14 more
doaj   +1 more source

A Dichotomy in the 1–24 GHz Parsec-scale Radio Spectra of Radio-quiet Quasars

open access: yesThe Astrophysical Journal
We present the parsec-scale radio spectra of a representative sample of 13 Palomar–Green radio-quiet quasars, based on our new Very Long Baseline Array (VLBA) observations at 8.4 and 23.6 GHz and our earlier VLBA studies at 1.5 and 5.0 GHz.
Sina Chen   +5 more
doaj   +1 more source

Discovery of spectacular quasar-driven superbubbles in red quasars. [PDF]

open access: yesSci Adv, 2023
Shen L   +9 more
europepmc   +1 more source

Performance of the Sardinia Radio Telescope Using the Dual-Polarized Cryogenic C-Low Receiver in the 4.2-5.6 GHz Frequency Band. [PDF]

open access: yesSensors (Basel)
Schirru L   +16 more
europepmc   +1 more source

Ultrahigh-energy gamma-ray emission associated with black hole-jet systems. [PDF]

open access: yesNatl Sci Rev
Cao Z   +316 more
europepmc   +1 more source

The Ellis-Baldwin test. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci
Secrest NJ.
europepmc   +1 more source

CONfirm: A Spectacular Galactic Scale MHD Powered Wind in ESO~320-G030

open access: yes, 2023
Gorski M   +25 more
europepmc   +1 more source

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