Results 101 to 110 of about 2,777 (189)

RAD@home Citizen Science Discovery of Two Spiral Galaxies Where the 30–220 kpc Radio Lobes Are Possibly Shaped by Ram Pressure Stripping

Galaxies
We report the RAD@home citizen science discovery of two rare spiral-host radio galaxies (NGC 3898 and WISEA J221656.57-132042434.1 or RAD-“Thumbs up” galaxy), both exhibiting asymmetric radio lobes extending over 30 to 220 kiloparsec scales. We present a
Prakash Apoorva, Ananda Hota, Pratik Dabhade, P. K. Navaneeth, Dhruv Nayak, Arundhati Purohit   +5 more
doaj   +1 more source

Low-frequency Probes of the Persistent Radio Sources Associated with Repeating Fast Radio Bursts

The Astrophysical Journal
The discovery of persistent radio sources (PRSs) associated with three repeating fast radio bursts (FRBs) has provided insight into the local environments of these FRBs.
Yash Bhusare, Yogesh Maan, Ajay Kumar
doaj   +1 more source

The Cosmic Ultraviolet Baryon Survey (CUBS). VIII. Group Environment of the Most Luminous Quasars at z ≈ 1

The Astrophysical Journal
We investigate the group-scale environment of 15 luminous quasars (luminosity L _3000 > 10 ^46 erg s ^−1 ) from the Cosmic Ultraviolet Baryon Survey (CUBS) at redshift z ≈ 1.
Jennifer I-Hsiu Li, Sean D. Johnson, Erin Boettcher, Sebastiano Cantalupo, Hsiao-Wen Chen, Mandy C. Chen, David R. DePalma, Zhuoqi (Will) Liu, Nishant Mishra, Patrick Petitjean, Zhijie Qu, Gwen C. Rudie, Joop Schaye, Fakhri S. Zahedy   +13 more
doaj   +1 more source

Circular Mystery: Exploring Diffuse Emission Surrounding a Radio Galaxy with uGMRT and VLA Multiwavelength Observations

The Astrophysical Journal
We report the discovery of J1218+1813, a circular diffuse radio source detected in the Very Large Array (VLA) FIRST survey at 1400 MHz. The source has an angular diameter of approximately one arcminute, corresponding to a physical size of ∼180 kpc, and ...
Shobha Kumari, Sabyasachi Pal, Souvik Manik   +2 more
doaj   +1 more source

The Merging Galaxy Cluster Environment Affects the Morphology of Radio Active Galactic Nuclei

The Astrophysical Journal
It has previously been found that the galaxy cluster environment can affect the fueling and evolution of active galactic nuclei (AGN). This work examines the effect of the merging cluster environment on the properties of radio AGN by comparing the radio ...
Mary Rickel, Emily Moravec, Yjan A. Gordon, Martin J. Hardcastle, Jonathon C. S. Pierce, Lawrence E. Bilton, Ian D. Roberts   +6 more
doaj   +1 more source

Cosmological zoom-in simulation of odd radio circles as merger-driven shocks in galaxy groups

Astronomy & Astrophysics
Context. A new class of distinct radio objects, commonly referred to as odd radio circles (ORCs), has been recently discovered. The origin of these features remains unclear because their peculiar properties challenge our current understanding of ...
Ivleva Anna, Böss Ludwig M., Dolag Klaus, Koribalski Bärbel S., Khabibullin Ildar   +4 more
doaj   +1 more source

Delayed and Fast-rising Radio Flares from an Optical and X-Ray-detected Tidal Disruption Event in the Center of a Dwarf Galaxy

The Astrophysical Journal Letters
AT 2018cqh is a unique tidal disruption event (TDE) discovered in a dwarf galaxy. Both the light-curve fitting and galaxy scaling relationships suggest a central black hole mass in the range of 5.9 < log M _BH / M _☉ < 6.4. The r-band peak luminosity is ∼
Fabao Zhang, Xinwen Shu, Lei Yang, Luming Sun, Zhumao Zhang, Yibo Wang, Guobin Mou, Xue-Guang Zhang, Tianyao Zhou, Fangkun Peng   +9 more
doaj   +1 more source

The radio and optical axes of radio elliptical galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 1987
SANSOM, AE, DANZIGER, IJ, EKERS, RD, FOSBURY, RAE, GOSS, WM, MONK, AS, SHAVER, PA, SPARKS, WB, WALL, JV   +8 more
openaire   +2 more sources

Very Long Baseline Array Observations of Parsec-scale Radio Emission in Dual Active Galactic Nuclei

The Astrophysical Journal
It is believed that dual active galactic nuclei (AGN) form during galaxy mergers. Studying dual-AGN emission can provide valuable insights into galaxy merging and evolution.
Wancheng Xu, Lang Cui, Xiang Liu, Tao An, Hongmin Cao, Pengfei Jiang, Luis C. Ho, Ning Chang, Xiaolong Yang, Yuling Shen, Guiping Tan, Zhenhua Han, Junhui Fan, Ming Zhang   +13 more
doaj   +1 more source

A tidal disruption event from an intermediate-mass black hole revealed by comprehensive multi-wavelength observations. [PDF]

Nat Commun
Wang J, Huang M, Xue Y, Jiang N, Huang S, Wang Y, Zhu J, Zhu S, Dai L, Jin C, Luo B, Shu X, Sun M, Wang T, Zou F.   +14 more
europepmc   +1 more source