Tag Archive for 'Galaxy cluster'

Abell 2744 takes on a ghostly look where total starlight has been artificially colored blue in this Hubble view. Image credit: NASA / ESA / IAC / HFF Team / STScI.

Astrophysicists Unveil Most Detailed Maps of Dark Matter to Date

Mar 2, 2017 by News Staff

A team of astrophysicists led by Yale Professor Priyamvada Natarajan has unveiled the most detailed maps to date of dark matter, offering a detailed case...

Astronomers combined data from ALMA’s 7- and 12-m antennas to produce the sharpest possible image of RX J1347.5–1145, the center of which shows up here in the dark ‘hole’ in the ALMA observations. The energy distribution of the CMB photons shifts and appears as a temperature decrease at the wavelength observed by ALMA, hence a dark patch is observed in this image at the location of the cluster. The optical image of RX J1347.5–1145 was taken with Hubble. Image credit: NASA / ESA / Hubble / T. Kitayama, Toho University / ALMA.

Astronomers Use ALMA to Hunt for Universe’s Oldest Light

Feb 20, 2017 by News Staff

This image shows the first measurements of the so-called Sunyaev-Zel’dovich effect (SZE) from the Atacama Large Millimeter/submillimeter Array. Astronomers...

Composite image showing how powerful radio jets from the supermassive black hole at the center of a galaxy in the Phoenix Cluster inflated huge ‘bubbles’ in the hot, ionized gas surrounding the galaxy (the cavities inside the blue region imaged by NASA's Chandra X-ray observatory). Hugging the outside of these bubbles, ALMA discovered an unexpected trove of cold gas, the fuel for star formation (red). The background image is from the NASA/ESA Hubble Space Telescope. Image credit: ALMA / ESO / NAOJ / NRAO / NASA / ESA / Hubble / CXC / MIT / H. Russell et al / M. McDonald et al / B. Saxton.

Powerful Black Hole at Heart of Phoenix Cluster’s Central Galaxy Surprises Astronomers

Feb 15, 2017 by News Staff

A University of Cambridge-led team of astronomers has discovered a surprising connection between a supermassive black hole and the giant galaxy where it...

This SDSS image shows a group of dwarf galaxies that are gravitationally bound together. The detection of seven such groups lends support to the idea that large galaxies formed by the collision and merger of smaller galaxies in the early Universe. Image credit: Sloan Digital Sky Survey.

Researchers Find Seven Isolated Clusters of Dwarf Galaxies

Jan 26, 2017 by News Staff

An international team of researchers led by National Radio Astronomy Observatory and University of Virginia astrophysicist Sabrina Stierwalt has spotted...

B.H.C. Emonts et al found that the Spiderweb, a massive galaxy in the center of a distant protocluster, is forming from a large reservoir of molecular gas. In this artist’s conception of the protocluster, the protogalaxies are shown in white and pink, and the blue indicates the location of the carbon monoxide gas. Image credit: M. Kornmesser / ESO.

Astronomers Witness Birth of Massive Cluster Galaxy

Dec 3, 2016 by Enrico de Lazaro

Massive galaxies may grow from cold molecular gas that condenses as stars rather than forming in violent mergers, according to an international team of...

Left: this deep Hubble image of the galaxy cluster ZwCl 1715.5+4229 (also known as ZwCl 8193) shows the full extent of the giant galaxy 2MASX 17171926+4226571 and some of its gravitationally lensed background galaxies. The white ‘X’ marks the VLBA radio position, the white ‘+’ marks the Hubble optical position of the giant galaxy’s core, and the white box bounds the zoomed image at right. Right: this shallower zoomed Hubble image of the galaxy cluster reveals the core of the giant galaxy, the smaller galaxy, several cluster galaxies, and extended interaction debris. The Hubble position of the giant galaxy’s core is marked by the white ‘+,’ and optical identification of B3 1715+425 is enclosed by a white circle centered on its Hubble position. Image credit: J.J. Condon et al / NASA / ESA / Hubble / NSF / VLBA.

Astronomers Find ‘Nearly Naked’ Supermassive Black Hole Two Billion Light-Years Away

Nov 3, 2016 by News Staff

A team of scientists led by National Radio Astronomy Observatory astronomer James Condon has found the shredded remains of a small galaxy that passed through...

This composite image shows the young galaxy cluster CL J1001 in X-rays from Chandra (purple), infrared data from ESO’s UltraVISTA survey (red, green, and blue), and radio waves from the Atacama Large Millimeter/submillimeter Array (green). Image credit: X-ray – NASA / CXC / CEA / T. Wang et al; infrared – ESO / UltraVISTA; radio – ESO / NAOJ / NRAO / ALMA.

Astronomers Find Young Galaxy Cluster 11.1 Billion Light-Years Away

Aug 31, 2016 by News Staff

Using five space- and four ground-based telescopes, an international team of astronomers has found the most distant galaxy cluster to date. This composite...

In the center of this Hubble image is the immense galaxy cluster Abell S1063, located 4 billion light-years away, and surrounded by magnified images of galaxies much farther. Image credit: NASA / ESA / J. Lotz, STScI.

Hubble Snaps Extraordinary Image of Galaxy Cluster Abell S1063

Jul 21, 2016 by News Staff

The NASA/ESA Hubble Space Telescope has captured a striking photo of Abell S1063, a massive cluster of galaxies in the constellation Grus. In the center...

Color image of MACS J2129.4-0741 taken with the NASA/ESA Hubble Space Telescope: an image of the faint, distant galaxy was split into three by a powerful gravitational lens; by comparing the spectra of the three images (white boxes), astronomers could show they were all the same object 13 billion light-years away. Image credit: Marusa Bradac / Hubble Space Telescope / W. M. Keck Observatory.

Astronomers Detect Faintest Early-Universe Galaxy Ever

May 23, 2016 by News Staff

Astronomers have detected and confirmed the faintest early-Universe galaxy ever using the 10-m Keck II telescope at the W. M. Keck Observatory, Hawaii. Color...

This Hubble image shows a giant group of galaxies in the constellation of Leo. Image credit: NASA / ESA / Hubble / Judy Schmidt, www.geckzilla.com.

Hubble Spots Giant Group of Galaxies in Leo

May 23, 2016 by News Staff

The NASA/ESA Hubble Space Telescope has captured a stunning image of an enormous group of galaxies in the constellation of Leo. This Hubble image shows...

This image shows the Fornax Galaxy Cluster. The brightest galaxies are labeled. Image credit: ESO / Aniello Grado / Luca Limatola.

ESO’s VST Telescope Takes Stunning Image of Fornax Galaxy Cluster

Apr 13, 2016 by News Staff

ESO’s VLT Survey Telescope (VST) at Paranal Observatory in Chile has taken the best ever photo of a concentration of galaxies known as the Fornax Cluster. This...

This image of the galaxy cluster MACS J0416 combines data from three telescopes - Hubble (showing the galaxies and stars), Chandra (diffuse emission in blue), and the Jansky Very Large Array (diffuse emission in pink). MACS J0416 acts as a powerful natural lens by bending and magnifying the light of far-more-distant objects behind it. Image credit: NASA / ESA / CXC / NRAO / AUI / NSF / STScI / G. Ogrean, Stanford University / J. Lotz, STScI / HFF Team.

Astronomers Snap Image of Huge Cluster of Galaxies

Mar 21, 2016 by News Staff

Astronomers have taken a stunning photo of a very massive cluster of galaxies, MACS J0416.1-2403. This image of the galaxy cluster MACS J0416 combines...

This composite image of the galaxy cluster MACS J0717 was made by combining data from NASA’s Chandra and Hubble space telescopes, and NRAO’s Jansky Very Large Array. Image credit: NASA / ESA / CXC / NRAO / AUI / NSF / STScI / R. van Weeren, Harvard-Smithsonian Center for Astrophysics / J. Lotz, STScI / HFF Team.

Three Telescopes Capture Image of Extremely Distant Galaxy Cluster

Mar 14, 2016 by Natali Anderson

NRAO’s Karl J. Jansky Very Large Array and two of NASA’s space telescopes — Chandra X-ray Observatory and Hubble — have captured a stunning...

This Hubble image shows thousands of galaxies swimming in the inky blackness of space; a few foreground stars from our Milky Way Galaxy are also visible. Image credit: NASA / ESA / HST Frontier Fields Team / STScI / Judy Schmidt, www.geckzilla.com.

NASA’s Hubble Space Telescope Focuses on Pandora’s Box

Mar 7, 2016 by News Staff

This parallel field observation from NASA’s Hubble Space Telescope reveals a diverse collection of galaxies in the direction of the constellation Sculptor. This...

Visible in this image are galaxies within the galaxy cluster Abell 428: the jet-producing spiral galaxy LEDA 97372 (left) and the spiral galaxy [LOY2001] J031549.8-190623 (right). Image credit: NASA / ESA / Hubble / Judy Schmidt, www.geckzilla.com.

Hubble Sees Spirals in Galaxy Cluster Abell 428

Jan 25, 2016 by Sergio Prostak

Two bright objects in this Hubble Space Telescope image are massive spiral galaxies in the galaxy cluster known as Abell 428, in the constellation of Eridanus,...

New images from the NASA/ESA Hubble Space Telescope show the faintest and earliest known galaxies in the Universe. This image shows the galaxy cluster MACSJ0717.5+3745 (MACS0717). It is one of the most massive galaxy clusters known, and it is also the largest known gravitational lens. Of all of the galaxy clusters known and measured, this cluster lenses the largest area of the sky. Image credit: NASA / ESA / HST Frontier Fields Team / STScI.

Astronomers Discover 252 Ultra-Faint Dwarf Galaxies in Early Universe

Oct 22, 2015 by News Staff

Using observations from the NASA/ESA Hubble Space Telescope, astronomers have discovered over 250 ultra-faint dwarf galaxies in three extremely distant...

This image, using data from Spitzer and the Hubble Space Telescope, shows the galaxy cluster SpARCS1049+56. At the middle of the picture is the largest, central member of the family of galaxies (upper right red dot of central pair). Unlike other central galaxies in clusters, this one is bursting with the birth of new stars. Image credit: NASA / STScI / ESA / JPL-Caltech / McGill.

Astronomers Discover Unique Cluster of Galaxies Almost 10 Billion Light-Years Away

Sep 11, 2015 by News Staff

A multinational group of astronomers has discovered a distant cluster of galaxies with active star formation occurring in close proximity to the cluster’s...

This Hubble image shows the cluster of galaxies MACS0416.1-2403. Bright yellow ‘elliptical’ galaxies can be seen, surrounded by numerous blue spiral and amorphous galaxies. Gravitational arcs can also be seen. This image forms the test data that the machine learning algorithm is applied to, having not previously seen the image. Image credit: NASA / ESA / J. Geach / A. Hocking.

Astronomers Teach AI to ‘See’ Astronomical Images

Jul 8, 2015 by News Staff

Astronomers at the University of Hertfordshire in Hatfield, UK, have taught a machine to automatically recognize and classify galaxies in astronomical...

This is an artist’s concept of a Type Ia supernova exploding in the intergalactic space between galaxies within a galactic cluster. Image credit: Alex Parker / NASA / SDSS.

Hubble Confirms Two Solitary Supernovae

Jun 5, 2015 by News Staff

New observations with the Advanced Camera for Surveys on the NASA/ESA Hubble Space Telescope confirm that two Type Ia supernovae discovered six years ago...

This image shows the quadruple quasar SDSS J0841+3921 (quasars are indicated by arrows). Image credit: Joseph Hennawi / Fabrizio Arrigoni-Battaia.

Astronomers Discover First Quadruple Quasar

May 15, 2015 by News Staff

Astronomers using two 10-m optical/infrared telescopes at the W. M. Keck Observatory have discovered the first quadruple quasar, catalogued as SDSS J0841+3921. This...

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