output
19992026
most citedFirst M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole

4.3k citations

Showing 2023 · astro-ph.GAShow all

15 papers · 2 filters

astro-ph.GA2023★ 5 cited

Powerful Radio Sources in the Southern Sky. II. A SWIFT X-Ray Perspective

F. Massaro, S. V. White, A. Paggi +18

We recently constructed the G4Jy-3CRE, a catalog of extragalactic radio sources based on the GLEAM 4-Jy (G4Jy) sample, with the aim of increasing the number of powerful radio galax…

astro-ph.GA2023★ 17 cited

Probing magnetic fields in the circumgalactic medium using polarization data from MIGHTEE

K. Böckmann, M. Brüggen, V. Heesen +10

The detection and study of magnetic fields surrounding galaxies is important to understand galaxy evolution since magnetic fields are tracers for dynamical processes in the circumg…

astro-ph.GA2023★ 8 cited

Powerful Radio Sources in the Southern Sky. I. Optical Identifications

F. Massaro, S. V. White, A. Garcia-Perez +18

Since the early sixties, our view of radio galaxies and quasars has been drastically shaped by discoveries made thanks to observations of radio sources listed in the Third Cambridg…

astro-ph.GA2023

A Wideband Polarization Observation of Hydra A with the Jansky Very Large Array

Lerato Baidoo, Richard A. Perley, Jean Eilek +3

We present results of a wideband high-resolution polarization study of Hydra A, one of the most luminous FR I radio galaxies known and amongst the most well-studied. The radio emis…

astro-ph.GA2023

The brightest (and faintest) sources in the radio sky

Sarah V. White

Radio observations allow us to identify a wide range of active galactic nuclei (AGN), which are galaxies that have gas accreting onto the supermassive black-hole at the centre. By…

astro-ph.GA2023★ 19 cited

The Population of the Galactic Center Filaments: Position Angle Distribution Reveal a Degree-scale Collimated Outflow from Sgr A* along the Galactic Plane

F. Yusef-Zadeh, R. G. Arendt, M. Wardle +1

We have examined the distribution of the position angle (PA) of the Galactic center filaments with lengths and as well as their length distribution as a functi…

astro-ph.GA2023★ 7 cited

The C-Band All-Sky Survey (C-BASS): New Constraints on the Integrated Radio Spectrum of M 31

Stuart E. Harper, Adam Barr, C. Dickinson +11

The Andromeda galaxy (M31) is our closest neighbouring spiral galaxy, making it an ideal target for studying the physics of the interstellar medium in a galaxy very similar to our…

astro-ph.GA2023★ 12 cited

NGC 1436: the making of a lenticular galaxy in the Fornax cluster

Alessandro Loni, Paolo Serra, Marc Sarzi +25

We study the evolutionary path of the Fornax cluster galaxy NGC1436, which is known to be currently transitioning from a spiral into a lenticular morphology. This galaxy hosts a…

astro-ph.GA2023★ 90 cited

The LOFAR Two-metre Sky Survey Deep Fields Data Release 1: V. Survey description, source classifications and host galaxy properties

P. N. Best, R. Kondapally, W. L. Williams +26

Source classifications, stellar masses and star formation rates are presented for 80,000 radio sources from the first data release of the Low Frequency Array Two-metre Sky Survey (…

astro-ph.GA2023★ 23 cited

The MeerKAT Fornax Survey II. The rapid removal of HI from dwarf galaxies in the Fornax cluster

D. Kleiner, P. Serra, F. M. Maccagni +12

We present MeerKAT Fornax Survey atomic hydrogen (HI) observations of the dwarf galaxies located in the central ~2.5 x 4 deg of the Fornax galaxy cluster. The HI images present…

astro-ph.GA2023★ 25 cited

MIGHTEE-HI: The first MeerKAT HI mass function from an untargeted interferometric survey

Anastasia A. Ponomareva, Matt J. Jarvis, Hengxing Pan +17

We present the first measurement of the HI mass function (HIMF) using data from MeerKAT, based on 276 direct detections from the MIGHTEE Survey Early Science data covering a period…

astro-ph.GA2023★ 13 cited

Catching Tidal Dwarf Galaxies at a Later Evolutionary Stage with ALFALFA

Laurin M. Gray, Katherine L. Rhode, Lukas Leisman +11

We present deep optical imaging and photometry of four objects classified as "Almost-Dark" galaxies in the ALFALFA survey because of their gas-rich nature and extremely faint or mi…

astro-ph.GA2023★ 5 cited

MIGHTEE-\HI: Possible interactions with the galaxy NGC~895

Brenda Namumba, Javier Román, Jesus Falcon Barroso +29

The transformation and evolution of a galaxy is strongly influenced by interactions with its environment. Neutral hydrogen (\HI) is an excellent way to trace these interactions. He…

astro-ph.GA2023★ 10 cited

Mining Mini-Halos with MeerKAT I. Calibration and Imaging

K. S. Trehaeven, V. Parekh, N. Oozeer +7

Radio mini-halos are clouds of diffuse, low surface brightness synchrotron emission that surround the Brightest Cluster Galaxy (BCG) in massive cool-core galaxy clusters. In this p…

astro-ph.GA2023★ 5 cited

Discovery of Hydrogen Radio Recombination Lines at z=0.89 towards PKS 1830-211

Kimberly L. Emig, Neeraj Gupta, Pedro Salas +14

We report the detection of stimulated hydrogen radio recombination line (RRL) emission from ionized gas in a galaxy using 580--1670 MHz observations from the MeerKAT Absor…