Tag Archive for 'Elliptical galaxy'

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 DEC image shows Centaurus A, a giant galaxy located some 13 million light-years away in the constellation of Centaurus. Image credit: CTIO / NOIRLab / DOE / NSF / AURA / M. Soraisam, University of Illinois at Urbana-Champaign & NOIRLab / T.A. Rector, University of Alaska Anchorage & NOIRLab / M. Zamani, NOIRLab / D. de Martin, NOIRLab.

Nearby Elliptical Galaxy Hosts At Least 1,900 Globular Clusters

Jan 13, 2022 by News Staff

A research team led by University of Arizona’s Steward Observatory astronomers presents a new catalog of 40,502 globular cluster candidates in Centaurus...

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...

VLA image of the Messier 87 radio jet, made at multiple radio frequencies. The jet seen in this image is about 8,000 light-years long. This image clearly shows the corkscrew-like helical structure in the inner part of the jet, which originates at the bright spot at the left, at the core of the galaxy, where a supermassive black hole resides. Image credit: Sophia Dagnello / NRAO / AUI / NSF / Pasetto et al., doi: 10.3847/2041-8213/ac3a88.

Astronomers Spot Double-Helix Structure in Messier 87

Dec 8, 2021 by News Staff

Astronomers using NSF’s Karl G. Jansky Very Large Array have captured unprecedented high-fidelity radio images of a jet of material propelled from the...

Members of the Fornax Cluster fill this image from the Dark Energy Camera on the Víctor M. Blanco 4-m Telescope at Cerro Tololo Inter-American Observatory. Image credit: CTIO / NOIRLab / DOE / NSF / AURA / T.A. Rector, University of Alaska Anchorage & NSF’s NOIRLab / J. Miller, Gemini Observatory & NSF’s NOIRLab / M. Zamani, NSF’s NOIRLab / D. de Martin, NSF’s NOIRLab.

Dark Energy Camera Focuses on Fornax Cluster

Sep 24, 2021 by News Staff

Astronomers using the 570-megapixel Dark Energy Camera (DECam) on Víctor M. Blanco 4-m Telescope at Cerro Tololo Inter-American Observatory in Chile,...

Astronomers Capture Beautiful New Image of Centaurus A

Sep 2, 2021 by News Staff

Using the Dark Energy Camera (DEC) on the Víctor M. Blanco 4-m Telescope at Cerro Tololo Inter-American Observatory in Chile, astronomers have obtained...

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 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 image, taken by the NASA/ESA Hubble Space Telescope, shows the massive galaxy cluster ACO S 295. The image is made up of observations from Hubble’s Wide Field Camera 3 (WFC3) and Advanced Camera for Surveys (ACS) instruments in the infrared and optical parts of the spectrum. Seven filters were used to sample various wavelengths. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / F. Pacaud / D. Coe.

Hubble Spots Massive Cluster of Galaxies: ACO S 295

May 17, 2021 by Enrico de Lazaro

The Hubble team has released an incredibly beautiful shot of ACO S 295, a massive galaxy cluster located some 3.5 billion light-years away in the small...

This EHT image shows the polarized view of the black hole in Messier 87. The lines mark the orientation of polarization, which is related to the magnetic field around the shadow of the black hole. Image credit: EHT Collaboration.

EHT Captures Polarized-Light Image of Messier 87’s Supermassive Black Hole

Mar 24, 2021 by News Staff

Astronomers using the Event Horizon Telescope (EHT) — a planet-scale array of eight ground-based radio telescopes (ALMA, APEX, the IRAM 30-m telescope,...

This Hubble image shows GAL-CLUS-022058-38303, the largest, nearly-complete Einstein ring known. The image is made up of observations from Hubble’s Wide Field Camera 3 (WFC3) in the infrared and optical parts of the spectrum. Three filters were used to sample various wavelengths. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / Saurabh Jha, Rutgers the State University of New Jersey / L. Shatz.

Hubble Space Telescope Spots Enormous Einstein Ring

Dec 14, 2020 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have captured a striking photo of GAL-CLUS-022058-38303, the largest and one of the most complete...

Visualization of the new gauge developed to test the predictions of modified gravity theories against the measurement of the size of M87*’s shadow. Image credit: D. Psaltis, University of Arizona / EHT Collaboration.

Shadow of Messier 87’s Supermassive Black Hole Puts General Relativity to Test

Oct 2, 2020 by News Staff

The 2017 observations from the Event Horizon Telescope (EHT) of M87*, a 6.5-billion-solar-mass black hole in the center of the giant elliptical galaxy...

The EHT Collaboration unveiled the first direct visual evidence of the supermassive black hole in the center of the elliptical galaxy Messier 87 and its shadow. The shadow of a black hole seen here is the closest we can come to an image of the black hole itself, a completely dark object from which light cannot escape. The black hole’s boundary -- the event horizon from which the EHT takes its name -- is around 2.5 times smaller than the shadow it casts and measures just under 25 billion miles (40 billion km) across. Image credit: EHT Collaboration.

Crescent Shadow of Messier 87’s Supermassive Black Hole is Wobbling

Sep 23, 2020 by News Staff

In 2019, the Event Horizon Telescope (EHT) delivered the first resolved images of M87*, the supermassive black hole in the center of the giant elliptical...

This multi-frequency composite VLBA image shows young radio jets originating near a supermassive black hole at the core of the active galaxy TXS 0128+554; the jets in this image started about 80 years ago, stopped, then resumed about 10 years ago. Image credit: Lister et al / Sophia Dagnello, NRAO / AUI / NSF.

Astronomers Observe Young, Radio-Emitting Jets in Distant Active Galaxy

Aug 27, 2020 by News Staff

Around five years ago, NASA’s Fermi Gamma-ray Space Telescope detected high-energy gamma rays coming from TXS 0128+554, an elliptical galaxy located...

This Hubble image shows NGC 3147, a spiral galaxy located some 130 million light-years from Earth in the constellation of Draco. Image credit: NASA / ESA / S. Bianchi, Università degli Studi Roma Tre University / A. Laor, Technion-Israel Institute of Technology / M. Chiaberge, ESA, STScI & JHU.

Spiral Galaxies More Likely to Host Complex Life: Study

May 4, 2020 by News Staff

Giant elliptical galaxies are not as likely as previously thought to be cradles of complex life, according to a paper published in the Monthly Notices...

Reynolds et al used Chandra to look for extraordinarily low-mass axion-like particles in the Perseus galaxy cluster, a group of galaxies located 240 million light-years away from Earth. The observation lasting over five days showed no evidence for certain axion-like particles, which some theorists think can explain dark matter. The lack of detection in these Chandra observations helps rule out some versions of string theory, a set of models intended to tie together all known forces, interactions, and particles. Image credit: NASA / CXC / University of Cambridge / Reynolds et al.

Astrophysicists Perform Test of String Theory

Mar 25, 2020 by News Staff

Astrophysicists using NASA’s Chandra X-ray Observatory have looked for signs of an as-yet undetected particle predicted by string theory, a set of models...

The collision of two black holes. Image credit: Simulating eXtreme Spacetimes Project.

Astronomers Propose New Mechanism for Growth of Supermassive Black Hole Seeds

Mar 24, 2020 by Enrico de Lazaro

In a paper published in the Astrophysical Journal, a team of astronomers in Italy proposes that heavy seeds of supermassive black holes formed via the...

This image, taken by the FOcal Reducer/low dispersion Spectrograph 2 (FORS2) on ESO’s Very Large Telescope, shows the interacting galaxy pair NGC 470-NGC 474. Image credit: ESO.

VLT Spots Two Interacting Galaxies

Jan 13, 2020 by Enrico de Lazaro

Astronomers using ESO’s Very Large Telescope have captured a striking view of two interacting galaxies NGC 470 and NGC 474. This image, taken by the...

ESO’s Very Large Telescope captured this image of NGC 1404 with its FORS (FOcal Reducer and low dispersion Spectrograph) instrument; the bright foreground star to the lower left of the frame is named HD 22862. Image credit: ESO.

ESO Releases Stunning Image of Elliptical Galaxy NGC 1404

Oct 30, 2019 by News Staff

The European Southern Observatory (ESO) has released a gorgeous new image taken by ESO’s Very Large Telescope (VLT) of a giant elliptical galaxy called...

This Hubble image shows young globular clusters (blue) and filaments of cool gas (red) around NGC 1275 in the center of the Perseus cluster (also known as Abell 426), a group of over 1,000 galaxies located 240 million light-years from Earth. Image credit: Lim et al, doi: 10.1038/s41550-019-0909-6.

Astronomers Find Thousands of Young Globular Clusters around Perseus Cluster’s Central Galaxy

Oct 29, 2019 by Enrico de Lazaro

Many thousands of compact and massive star clusters have formed at an approximately steady rate over the past one billion years around NGC 1275, the central...

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