Tag Archive for 'Radio galaxy'

This Hubble image shows NGC 612, a lenticular galaxy some 388 million light-years in the constellation of Sculptor. Image credit: NASA / ESA / Hubble / A. Barth, University of California, Irvine / B. Boizelle, Brigham Young University / Gladys Kober, NASA & Catholic University of America.

Hubble Takes Close Look at NGC 612

Oct 4, 2023 by Enrico de Lazaro

NASA has released a beautiful photo taken by the Hubble Space Telescope of the lenticular galaxy NGC 612. This Hubble image shows NGC 612, a lenticular...

This Hubble image shows Arp 308, a pair of massive galaxies located some 250 million light-years away in the constellation of Cetus. Image credit: NASA / ESA / J. Blakeslee, NOIRLab / W. Sparks, SETI Institute / Gladys Kober, NASA & Catholic University of America.

Hubble Space Telescope Focuses on Arp 308

May 10, 2023 by Enrico de Lazaro

The Hubble team has released a beautiful new image of two massive galaxies, NGC 545 and NGC 547, collectively known as Arp 308. This Hubble image shows...

This radio-infrared image shows the radio galaxy Alcyoneus. Image credit: Oei et al., arXiv: 2202.05427.

LOFAR Telescope Spots Biggest Radio Galaxy Ever

Feb 16, 2022 by Natali Anderson

The newly-discovered radio galaxy, dubbed Alcyoneus, has a projected length of 16.3 million light-years (4.99 Mpc). This radio-infrared image shows the...

This MWA image shows Centaurus A at radio wavelengths, revealing vast lobes of plasma that reach far beyond the visible galaxy, which occupies only a small patch at the center of the image. The dots in the background are not stars, but radio galaxies much like Centaurus A, at far greater distances. Image credit: Ben McKinley, ICRAR & Curtin University / Connor Matherne, Louisiana State University.

Radio Astronomers Spot Bipolar Outflow from Centaurus A’s Supermassive Black Hole

Dec 23, 2021 by News Staff

Centaurus A (NGC 5128) is a giant elliptical galaxy 12 million light-years away in the constellation of Centaurus. In its center lies an actively feeding...

A compilation of the new science results from LOFAR. Image credit: Ramírez-Olivencia et al. / NASA, ESA / Hubble Heritage Team / STScI / AURA / A. Evans, University of Virginia, Charlottesville / NRAO / Stony Brook University / R. Cumming / C. Groeneveld / R. Timmerman / LOFAR / Kukreti / Sloan Digital Sky Survey / A. Kappes / F. Sweijen / DESI Legacy Imaging Survey / S. Badole / L. Calcada / W.L. Williams.

LOFAR Captures Most Detailed Images Ever Seen of Distant Galaxies

Aug 19, 2021 by News Staff

Using data from the Low Frequency Array (LOFAR), a radio telescope that operates at frequencies between 10 and 240 MHz and consists of 52 stations spread...

The two galaxies Norris et al. think are responsible for the streams of electrons (shown as curved arrows) that form the ‘dancing ghosts;’ but the authors don’t understand what is causing the filament labelled as 3. Image credit: Jayanne English & Ray Norris / EMU Project / Dark Energy Survey.

ASKAP Radio Telescope Spots ‘Dancing Ghost’ Galaxies

Aug 10, 2021 by News Staff

Astronomers using CSIRO’s Australian Square Kilometre Array Pathfinder (ASKAP) telescope, a radio telescope situated about 800 km north of Perth, in...

The new highest resolution EHT image of the Centaurus A’s jet launching region. Image credit: R. Bors / CSIRO / ATNF / Feain et al. / Morganti et al. / Junkes et al. / ESO / WFI / MPIfR / APEX / Weiß et al. / NASA / CXC / CfA / Kraft et al. / TANAMI / Müller et al. / EHT / Janssen et al.

Event Horizon Telescope Captures Image of Centaurus A’s Black Hole Jet

Jul 20, 2021 by Natali Anderson

Astronomers from the Event Horizon Telescope (EHT) Collaboration have imaged a jet in the heart of the nearby radio galaxy Centaurus A and identified the...

This composite image, taken by the Very Large Array and Hubble, shows the galaxy cluster MACS J0717.5+3745. Pullout shows the distant galaxy J0717+3745, far beyond the cluster, and likely the faintest radio-emitting object ever detected. The prominent red-orange objects are radio relics -- large structures possibly caused by shock waves -- inside MACS J0717.5+3745. Image credit: Heywood et al. / Sophia Dagnello, NRAO / AUI / NSF / STScI.

Gravity of Giant Cluster Magnifies Light and Radio Waves from Distant Galaxy

Mar 17, 2021 by Enrico de Lazaro

The newly-discovered galaxy, named VLAHFF-J071736+374506 (J0717+3745 for short), is likely the faintest radio-emitting object yet found, according to astronomers...

An artist’s impression of a thin gas cloud formed by tidal disruption from a passing star. Wang et al. think this is one of the possible ways the cold clump of gas detected in the study could have been formed. Image credit: Mark Myers / OzGrav.

Radio Astronomers Detect ‘Invisible’ Filament of Cold Gas

Feb 5, 2021 by News Staff

Using CSIRO’s Australian Square Kilometre Array Pathfinder (ASKAP) and background radio galaxies, astronomers have spotted a long cloud of cold hydrogen...

This image shows the giant radio galaxy MGTC J095959.63+024608.6; in the background is the sky as seen in optical light; overlaid in red is the radio light from the giant radio galaxy, as seen by MeerKAT. Image credit: I. Heywood, University of Oxford / Rhodes University / South African Radio Astronomy Observatory / CC BY 4.0.

Two New Giant Radio Galaxies Discovered

Jan 20, 2021 by News Staff

Astronomers using the MeerKAT radio telescope at the South African Radio Astronomy Observatory in Cape Town, South Africa, have discovered two new radio...

ASKAP radio continuum image of ORC 1 (contours) overlaid onto a DES 3-color composite image. Two galaxies of interest: ‘C’ lies near the center of ORC 1 and ‘S’ coincides with the southern radio peak. Image credit: Norris et al, arXiv: 2006.14805.

New Class of Radio-Astronomical Objects Discovered: Odd Radio Circles

Jul 13, 2020 by Natali Anderson

An international team of astronomers has discovered an unexpected new class of radio-astronomical objects, consisting of a circular disk, which in some...

PKS 2014-55 is classified as ‘X-shaped’ because of its appearance in previous relatively blurry images. The detail provided in this radio image obtained with the MeerKAT telescope indicates that its shape is best described as a double boomerang. Two powerful jets of radio waves, indicated in blue color, each extend 2.5 million light-years into space. Eventually, they are ‘turned back’ by the pressure of tenuous intergalactic gas. As they flow back towards the central galaxy, they are deflected by its relatively high gas pressure into the shorter, horizontal, arms of the boomerang. The background image shows visible light from myriad galaxies in the distant Universe. Image credit: NRAO / AUI / NSF / SARAO / DES.

Astronomers Crack Mystery of X-Shaped Radio Galaxies

May 8, 2020 by News Staff

Astronomers using the MeerKAT telescope at the South African Radio Astronomy Observatory in Cape Town, South Africa, have solved a longstanding mystery...

This composite image shows the surroundings of a supermassive black hole that is triggering star formation across the longest distance ever seen; as hot gas swirls around the black hole, it emits large amounts of X-rays that Chandra detects; the black hole is also the source of radio-wave emission from a jet of high-energy particles -- previously detected by scientists with the VLA -- that stretches about a million light-years. Image credit: NASA / CXC / INAF / R. Gilli et al / NRAO / VLA / STScI.

Supermassive Black Hole Triggers Star Formation in Multiple Galaxies

Dec 5, 2019 by News Staff

Enormous black holes usually affect their surroundings through the so-called ‘negative feedback’ — in other words, suppressing the formation...

VLA image of Cygnus A’s central region. Image credit: Carilli et al / NRAO / AUI / NSF.

Astronomers Capture Direct Image of Active Galactic Nucleus Torus

Apr 5, 2019 by News Staff

Astronomers using NSF’s Karl G. Jansky Very Large Array (VLA) have caught the direct image of the thick torus surrounding the supermassive black hole...

An artistic illustration of a binary black hole. Image credit: NASA / ESA / G. Bacon, STScI.

Double Supermassive Black Hole is Most Compact Ever Found

Sep 19, 2017 by News Staff

Astronomers have discovered what may be the most compact binary supermassive black hole ever known in a galaxy about 400 million light years from Earth. An...

Enjoying Spectacular Fireworks in Early Universe

Sep 19, 2012 by Sergio Prostak

New observations from the Herschel Space Observatory have revealed that prodigious star formation in galaxies of the early Universe were often accompanied...