Tag Archive for 'Gravitational lens'

This artist’s concept shows what the young, ‘dead,’ disk galaxy MACS 2129-1 (right) would look like when compared with our Milky Way Galaxy (left). Although three times as massive as the Milky Way, it is only half the size. MACS 2129-1 is also spinning more than twice as fast as the Milky Way. Note that regions of the Milky Way are blue from bursts of star formation, while MACS 2129-1 is yellow, signifying an older star population and no new star birth. Image credit: NASA / ESA / Z. Levy, STScI.

Hubble Spots Massive, ‘Dead’ Disk Galaxy in Early Universe

Jun 23, 2017 by News Staff

Using a powerful astronomical technique called gravitational lensing, the NASA/ESA Hubble Space Telescope made a stunning discovery — the first example...

This illustration reveals how the gravitation of the white dwarf Stein 2051B warps space and bends the light of a distant star behind it. The NASA/ESA Hubble Space Telescope captured images of Stein 2051B as it passed in front of the background star. During the close alignment, Stein 2051B deflected the starlight, which appeared offset by about 2 milli-arcseconds from its actual position. From this measurement, astronomers calculated that the white dwarf’s mass is roughly 68% of the Sun’s mass. Image credit: NASA / ESA / A. Field, STScI.

Hubble Measures Deflection of Star’s Light by Foreground White Dwarf

Jun 7, 2017 by News Staff

The first observation of displacement of a star due to bending of its light by another celestial body other than our Sun is revealed in new research. This...

Hubble’s view on iPTF16geu. Image credit: NASA / ESA / Hubble.

Hubble Spots Multiply-Imaged, Gravitationally Lensed Type Ia Supernova

Apr 21, 2017 by News Staff

The powerful vision of the NASA/ESA Hubble Space Telescope has allowed astronomers to analyze for the first time the multiple images of a gravitationally...

This artist’s impression shows what the galaxy A2744_YD4 might look like. Image credit: ESO / M. Kornmesser.

ALMA Detects Vast Amounts of Interstellar Dust, Oxygen in Very Young, Distant Galaxy

Mar 9, 2017 by News Staff

New observations using the Atacama Large Millimeter/submillimeter Array (ALMA) have demonstrated that A2744_YD4 — the youngest and most remote galaxy...

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...

HE0435-1223, located in the centre of this wide-field image, is among the five best lensed quasars discovered to date. The foreground galaxy creates four almost evenly distributed images of the distant quasar around it. Image credit: NASA / ESA / Hubble / S.H. Suyu et al.

Astronomers Use Gravitational Lensing to Measure Hubble Constant

Jan 27, 2017 by News Staff

Astronomers from the international H0LiCOW (H0 Lenses in COSMOGRAIL’s Wellspring) collaboration have made a new measurement of the Hubble constant —...

This map of dark matter was obtained from data from the KiDS survey, using ESO’s VLT Survey Telescope. It reveals an expansive web of dense (light) and empty (dark) regions. This image is one out of five patches of the sky observed by KiDS. The invisible dark matter is seen rendered in pink, covering an area of sky around 420 times the size of the full Moon. This image reconstruction was made by analyzing the light collected from over 3 million galaxies more than 6 billion light-years away. The observed galaxy images were warped by the gravitational pull of dark matter as the light traveled through the Universe. Some small dark regions, with sharp boundaries, appear in this image. They are the locations of bright stars and other nearby objects that get in the way of the observations of more distant galaxies and are hence masked out in the map as no weak-lensing signal can be measured in these areas. Image credit: Kilo-Degree Survey Collaboration / H. Hildebrandt & B. Giblin / ESO.

Deep Space Images Shed More Light on Dark Matter

Dec 7, 2016 by News Staff

An international research team led by Dr. Massimo Viola from the Leiden Observatory and Dr. Hendrik Hildebrandt from the Argelander-Institut für Astronomie...

This illustration depicts a newly discovered brown dwarf. Image credit: NASA / JPL-Caltech.

Astronomers Find Brown Dwarf 16,300 Light-Years Away

Nov 11, 2016 by News Staff

A multinational team of astronomers has spotted a brown dwarf orbiting a K-type dwarf star approximately 16,300 light-years away. The object was discovered...

Astronomers Confirm Existence of Giant Circumbinary Exoplanet 8,000 Light-Years Away

Sep 22, 2016 by News Staff

Astronomers using the NASA/ESA Hubble Space Telescope have confirmed the existence of a Saturn-mass exoplanet in the binary system OGLE-2007-BLG-349L,...

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...

Canarias Einstein ring: the central lensing galaxy is shown in red and the blue Einstein ring is visible all around it. Image credit: M. Bettinelli et al / DECam / CTIO.

Canarias Einstein Ring: Astronomers Capture Rare Image of Lensed Galaxy

Jun 5, 2016 by Sergio Prostak

Astronomers have spotted an almost complete Einstein ring — an image of a far-off galaxy lensed by gravity — in the vicinity of the Sculptor...

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...

Composite image of the gravitational lens SDP.81 showing the distorted ALMA image of the more distant galaxy (red arcs) and the Hubble optical image of the nearby lensing galaxy (blue center object). By analyzing the distortions in the ring, astronomers have determined that a dark dwarf galaxy (data indicated by white dot near left lower arc segment) is lurking nearly 4 billion light-years away. Image credit: Y. Hezaveh, Stanford University / ALMA / NRAO / ESO / NAOJ / NASA / ESA / Hubble Space Telescope.

Astronomers Spot Dwarf Dark-Matter Dominated Galaxy 4 Billion Light-Years Away

Apr 15, 2016 by News Staff

Analysis of the very high resolution Atacama Large Millimeter/submillimeter Array (ALMA) observations of the gravitational lens SDP.81 reveals a dwarf...

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 image shows the Tayna galaxy, an extremely faint and distant galaxy that existed only 400 million years after the Big Bang. Image credit: NASA / ESA / L. Infante, Pontificia Universidad Catolica de Chile.

Tayna Galaxy: Astronomers Spot Faintest Galaxy in Early Universe

Dec 5, 2015 by Enrico de Lazaro

Using two orbiting telescopes – the NASA/ESA Hubble Space Telescope and NASA’s Spitzer Space Telescope, astronomers have found the faintest galaxy...

This composite image shows the gravitationally lensed galaxy SDP.81; the bright orange central region of the ring reveals the glowing dust in this distant galaxy; the surrounding lower-resolution portions of the ring trace the millimeter wavelength light emitted by carbon monoxide; the diffuse blue element at the center of the ring is from the intervening lensing galaxy. Image credit: ALMA / NRAO / ESO / NAOJ / B. Saxton / AUI / NSF / NASA / ESA / Hubble / T. Hunter.

ALMA Sees Star Nurseries in Gravitationally Lensed Galaxy SDP 81

Jun 8, 2015 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) radio telescope in Chile have captured detailed images of the gravitationally...

This map of our Milky Way Galaxy shows the location of the gas giant OGLE-2014-BLG-0124Lb and other exoplanets discovered with microlensing. Image credit: NASA / JPL-Caltech.

Astronomers Discover Extrasolar Gas Giant 13,000 Light-Years Away

Apr 15, 2015 by News Staff

Astronomers using NASA’s Spitzer Space Telescope and the Polish Optical Gravitational Lensing Experiment (OGLE) telescope at the Las Campanas Observatory...

ALMA Images of Lensed Galaxy SDP.81 Reveal Einstein Ring

Apr 8, 2015 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have captured stunning images of a gravitationally lensed galaxy called HATLAS...

The Planck all-sky map at submillimeter wavelengths; the band running through the middle corresponds to dust in the Milky Way Galaxy; the black dots indicate the location of the proto-cluster candidates identified by Planck and subsequently observed by Herschel. The inset images showcase some of the observations made by Herschel’s SPIRE instrument; the contours represent the density of galaxies. Image credit: ESA / Planck Collaboration / H. Dole / D. Guéry / G. Hurier / IAS / University Paris-Sud / CNRS / CNES.

Astronomers Discover Over 200 Young Galactic Clusters in Distant Cosmos

Apr 1, 2015 by News Staff

An international team of astronomers using data from two ESA’s space telescopes, Planck and Herschel, has identified more than 200 proto-clusters of...

This image shows four different images of SN Refsdal whose light has been distorted and magnified by the massive galaxy cluster MACS J1149+2223 in front of it. The huge mass of the cluster and one of the galaxies within it is bending the light from a supernova behind them and creating four separate images of the supernova. The light has been magnified and distorted due to gravitational lensing and as a result the images are arranged around the elliptical galaxy in a formation known as an Einstein cross. Image credit: NASA / ESA / S. Rodney, JHU / FrontierSN team / T. Treu, UCLA / P. Kelly, UC Berkeley / GLASS team / J. Lotz, STScI / Frontier Fields team / M. Postman, STScI / CLASH team / Z. Levay, STScI.

SN Refsdal: Hubble Spots Four Magnified Images of Same Supernova

Mar 6, 2015 by News Staff

Due to the gravitational lensing technique, a team of astronomers led by Dr Patrick Kelly from the University of California, Berkeley, has observed four...

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