Tag Archive for 'Star cluster'

Astronomers Find Two-Planet System in Beehive Cluster

Sep 11, 2018 by Natali Anderson

Astronomers using data from the Kepler spacecraft’s K2 mission have discovered two mini-Neptune exoplanets orbiting a star in an open star cluster called...

An artist’s conception of exoplanets in a dense star cluster. Image credit: Michael Bachofner.

Milky Way’s Biggest Globular Cluster Unlikely to Host Habitable Exoplanets

Aug 14, 2018 by News Staff

Close encounters between stars in Omega Centauri, the only star cluster visible to the naked eye, leave little room for habitable planets, according to...

This Hubble/ACS image shows NGC 2108, a globular cluster located in the constellation Dorado, about 164,000 light-years away. Image credit: NASA / ESA / Hubble.

Hubble Observes Globular Cluster NGC 2108

Aug 6, 2018 by News Staff

The NASA/ESA Hubble Space Telescope has captured a striking photo of the colorful globular cluster NGC 2108. This Hubble/ACS image shows NGC 2108, a globular...

This image from the HAWK-I/GRAAL system on ESO’s Very Large Telescope shows the super star cluster RCW 38. Image credit: K. Muzic / ESO.

ESO’s Very Large Telescope Takes Closer Look at RCW 38

Jul 11, 2018 by Natali Anderson

The High Acuity Wide field K-band Imager (HAWK-I) on ESO’s Very Large Telescope (VLT) in Chile has taken the most detailed infrared image so far of a...

This Hubble image shows a globular cluster called NGC 6397. Image credit: NASA / ESA / T. Brown, S. Casertano & J. Anderson, STScI.

Globular Clusters Could Have Been Birthplace of Supermassive Stars

Jun 25, 2018 by News Staff

University of Surrey’s Professor Mark Gieles and colleagues may have found a solution to a problem that has perplexed astronomers for several decades:...

The globular cluster NGC 6139 as seen by the NASA/ESA Hubble Space Telescope. Image credit: NASA / ESA / Hubble.

Hubble Sees Massive Globular Cluster: NGC 6139

Jun 25, 2018 by News Staff

A new image from the NASA/ESA Hubble Space Telescope shows off the massive globular cluster NGC 6139. The globular cluster NGC 6139 as seen by the NASA/ESA...

An artist’s impression of an intermediate-mass black hole. Image credit: Sci-News.com.

Astronomers See Best Evidence Yet of Intermediate-Mass Black Hole

Jun 20, 2018 by News Staff

Astronomers know that small black holes — objects ranging from 10 times to 100 times the Sun’s mass — are the remnants of dying stars, and...

Globular clusters could be up to 4 billion years younger than previously thought. This image shows a binary star system within a globular cluster. Image credit: Mark A. Garlick / University of Warwick.

Globular Star Clusters May Be Significantly Less Ancient than Previously Thought

Jun 7, 2018 by News Staff

Once thought to be formed soon after the Universe itself, new research from the Universities of Warwick and Auckland finds globular clusters may be only...

These six images represent the variety of star-forming regions in nearby galaxies. The galaxies -- part of LEGUS survey -- are two dwarf galaxies (UGC 5340 and UGCA 281) and four large spiral galaxies (NGC 4258, NGC 3368, NGC 3627, and NGC 6744). They are between 19 million and 42 million light-years from Earth. The images are a blend of UV and visible light from Hubble’s WFC3 and ACS instruments. Image credit: NASA / ESA / LEGUS Team.

Hubble Surveys Star-Forming Galaxies in Local Universe

May 18, 2018 by News Staff

Astronomers using the NASA/ESA Hubble Space Telescope have completed the sharpest, most comprehensive UV-light survey of star-forming galaxies in the local...

The Chandra image (right) shows the inner region of NGC 6231 where red, green, and blue represent low, medium, and high-energy X-rays; the brightest X-ray emission is white. An infrared image from NASA’s Wide-field Infrared Survey explorer is shown on the left. Image credit: NASA / CXC / University of Valparaiso / M. Kuhn et al / WISE / JPL.

NASA’s Chandra X-ray Observatory Observes Young Cluster NGC 6231

May 4, 2018 by News Staff

First discovered by Italian mathematician and priest Giovanni Battista Hodierna in 1654, NGC 6231 is a young star cluster located in the constellation...

A snapshot of a simulation showing a binary black hole formed in the center of a globular cluster. Image credit: Northwestern Visualization / Carl Rodriguez.

Globular Star Clusters May Foster Repeated Merging of Multiple Black Holes

Apr 12, 2018 by News Staff

Stellar-mass black holes that reside in globular clusters — small regions of space, usually at the edges of a galaxy, that are packed with hundreds...

This image shows the nearby globular cluster NGC 6397, located at a distance of 7,800 light-years in the southern constellation Ara. Image credit: NASA / ESA / T. Brown & S. Casertano, STScI / J. Anderson, STScI.

Astronomers Make First Precise Distance Measurement to Ancient Globular Cluster

Apr 5, 2018 by News Staff

Astronomers using the NASA/ESA Hubble Space Telescope have for the first time precisely measured the distance to one of the oldest objects in the Universe...

This Hubble image shows the globular cluster NGC 3201. Image credit: NASA / ESA / Hubble.

Hubble Space Telescope Sees NGC 3201

Jan 22, 2018 by News Staff

In this image, the NASA/ESA Hubble Space Telescope has captured the brilliance of an ancient globular cluster named NGC 3201. This Hubble image shows the...

Artist’s impression of the black hole-star system in NGC 3201, a globular cluster located approximately 16,300 light-years away towards the southern constellation Vela. Image credit: ESO / L. Calçada / Spaceengine.org.

Astronomers Detect Lonely Black Hole in Globular Cluster NGC 3201

Jan 18, 2018 by News Staff

An international team of astronomers led by Georg-August-Universität Göttingen researcher Benjamin Giesers has discovered a star in the globular cluster...

This artist’s concept depicts a three-planet system. Image credit: NASA / JPL-Caltech.

Three-Planet System Found in Hyades Cluster

Oct 16, 2017 by Sergio Prostak

Astronomers using data from the NASA Kepler spacecraft’s reborn K2 mission have discovered a planetary system containing at least three exoplanets, orbiting...

This image from Kepler shows members of the Pleiades star cluster taken during Campaign 4 of the K2 Mission. Kepler was not designed to look at stars this bright; they cause the camera to saturate, leading to long spikes and other artifacts in the image. Despite this serious image degradation, the new technique has allowed astronomers to carefully measure changes in brightness of these stars as Kepler observed them for almost three months. Image credit: NASA / Aarhus University / T. White.

NASA’s Kepler Space Telescope Discovers Variability in Pleiades

Aug 25, 2017 by News Staff

Using a novel photometric technique to enhance observations from NASA’s Kepler Space Telescope, astronomers have performed the most detailed study yet...

This illustration shows a likely configuration of a gravitational lensing system discovered by the team: the milli-lens is located in or near the intervening spiral galaxy; the lens is magnifying blobs of jet material within the active galaxy PKS1413+135, but the blobs are too small to be seen in the radio image (top left); only when the blobs move far away from the yellow core do they expand and are visible as the pink blobs in the image. Image credit: Anthony Readhead / Caltech / MOJAVE.

Gravitational ‘Milli-Lens’ Reveals Clumps of Hot Gas Streaming from Supermassive Black Hole

Aug 16, 2017 by News Staff

An international team of astronomers has found evidence for a unique gravitational lensing system, in which a massive star cluster is magnifying an extremely...

False-color near-infrared image of the core of the young massive cluster RCW 38 taken with the adaptive-optics camera NACO on ESO’s Very Large Telescope. RCW 38 lies at a distance of about 5,500 light years from the Sun. The field of view of the central image is approximately 1 arc minute, or 1.5 light-years across. The insets, each spanning about 0.07 light-years on a side, show a subset of the faintest and least massive cluster candidate brown dwarfs (indicated by arrows) of RCW 38 discovered in this new image. Image credit: Muzic et al.

Milky Way Galaxy is Home to At Least 25 Billion Brown Dwarfs

Jul 5, 2017 by News Staff

A new estimate suggests that the Milky Way’s population of brown dwarfs — objects too large to be a planet but too small to be a star — exceeds...

This Hubble image shows the supernova remnant N103B (top of the image). N103B was a Type Ia supernova, located in the Large Magellanic Cloud. Owing to its relative proximity to Earth, astronomers observe the remnant to search for a potential stellar survivor of the explosion. The orange-red filaments visible in the image show the shock fronts of the supernova explosion. These filaments allow astronomers to calculate the original centre of the explosion. The filaments also show that the explosion is no longer expanding as a sphere, but is elliptical in shape. Astronomers assume that part of material ejected by the explosion hit a denser cloud of interstellar material, which slowed its speed. The shell of expanding material being open to one side supports this idea. The gas in the lower half of the image and the dense concentration of stars in the lower left are the outskirts of the rich star cluster NGC 1850. Image credit: NASA / ESA / Hubble.

Astronomers Observe Type Ia Supernova Remnant in Large Magellanic Cloud

Mar 30, 2017 by News Staff

An international team of astronomers has used the NASA/ESA Hubble Space Telescope to observe N103B, a supernova remnant in our neighboring galaxy the Large...

This image, taken with Hubble’s Wide Field Camera 3, shows the super star cluster Westerlund 1. Image credit: NASA / ESA / Hubble.

Hubble Spots Monster Star Cluster

Mar 6, 2017 by Natali Anderson

The NASA/ESA Hubble Space Telescope has captured this vivid image of Westerlund 1, a young super star cluster. This image, taken with Hubble’s Wide Field...

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