Tag Archive for 'Star cluster'

An artist’s impression of a group of stellar-mass black holes in the center of NGC 6397. Image credit: NASA / ESA / Hubble / N. Bartmann.

Astronomers Find Large Group of Stellar-Mass Black Holes in NGC 6397

Feb 11, 2021 by News Staff

Astronomers using the NASA/ESA Hubble Space Telescope have found evidence for dozens of stellar-mass black holes lurking in the core-collapsed, globular...

Adamo et al. investigated the rate of star formation within six merging galaxy systems (from left to right, from top to bottom): NGC 3256, NGC 1614, NGC 4194, NGC 3690, NGC 6052, and NGC 34. Image credit: NASA / ESA / Hubble Heritage Team / STScI / AURA / A. Evans / University of Virginia, Charlottesville / NRAO / Stony Brook University / Adamo et al.

Astronomers Study Star Formation in Six Galaxy Mergers

Jan 8, 2021 by Natali Anderson

Astronomers using the NASA/ESA Hubble Space Telescope have detected and studied numerous young star clusters in six merging galaxy systems. Adamo et al....

This Hubble images shows Caldwell 45, a spiral galaxy located 59 million light-years away in the constellation Boötes. Also known as NGC 5248, this galaxy is notable for the ring structure around its nucleus. These nuclear rings are characterized by hot spots of starburst activity. Caldwell 45 was discovered by astronomer William Herschel in 1784. The galaxy has an apparent magnitude of 10 and can be spotted using a small telescope, though it won’t appear very bright. A larger telescope is needed to make out the galaxy’s spiral arms. The best time of year to observe Caldwell 45 is during the northern hemisphere’s spring and the southern hemisphere’s autumn. This stunning image of Caldwell 45 is a composite of observations made by Hubble’s Wide Field Camera 3 (WFC3) and Wide Field and Planetary Camera 2 (WFPC2) in visible, infrared, and ultraviolet light. It captures the glowing red clouds where new stars are forming, scattered along the galaxy’s winding arms. These observations of Caldwell 45 were made to help astronomers learn more about gas in the galaxy’s starburst regions, as well as to better understand the structure of its nuclear rings. Image credit: NASA / ESA / J. Lee, California Institute of Technology / A. Filippenko, University of California, Berkeley / Gladys Kober, Catholic University of America.

NASA Releases Stunning Images of 30 Caldwell Objects

Dec 15, 2020 by News Staff

NASA has released more than 50 new Hubble images featuring 30 galaxies, star clusters, and nebulae. All of these objects belong to a collection known to...

The globular cluster RBC EXT8. Image credit: ESASky / CFHT.

Astronomers Find Extremely Metal-Deficient Globular Cluster in Andromeda Galaxy

Oct 16, 2020 by News Staff

Astronomers using the High-Resolution Echelle Spectrometer (HIRES) on the Keck I telescope at W. M. Keck Observatory and the Canada-France-Hawaii Telescope...

This Hubble image NGC 1805, a globular cluster located 163,000 light-years away in the constellation of Dorado. The color image is made up of observations from Hubble’s Wide Field Camera 3 (WFC3) in the ultraviolet, near-infrared, and optical parts of the spectrum. Four 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 / J. Kalirai.

Hubble Sees Beautiful Globular Cluster: NGC 1805

Sep 7, 2020 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has captured the brilliance of a globular cluster called NGC 1805. This Hubble image NGC 1805, a globular cluster located...

An artist’s conception of a potential solar companion, which theorists believe was developed in the Sun’s birth cluster and later lost. If proven, the solar companion theory would provide additional credence to theories that the Oort Cloud formed as we see it today, and that Planet Nine was captured rather than formed in place. Image credit: M. Weiss.

Early Solar System May Have Had Two Suns

Aug 19, 2020 by News Staff

In a paper published in the Astrophysical Journal Letters, Harvard University astrophysicists Avi Loeb and Amir Siraj show that an equal-mass stellar companion...

An artist’s impression of the thin stream of stars torn from the Phoenix globular cluster, wrapping around the Milky Way (left). Wan et al targeted bright red giant stars (right) to measure the chemical composition of the disrupted Phoenix globular cluster. Image credit: James Josephides, Swinburne Astronomy Productions / S5 Collaboration.

Ancient Globular Cluster Was Tidally Disrupted by Milky Way Two Billion Years Ago

Jul 30, 2020 by News Staff

The Phoenix stellar stream, a thin over-density of stars in the halo of our Milky Way Galaxy originally identified by the Dark Energy Survey, is composed...

This Hubble image shows the open cluster NGC 2203. The image includes optical and near-infrared observations from Hubble’s Wide Field Camera 3 (WFC3). 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 / L. Girardi

Hubble Space Telescope Views NGC 2203

Jul 27, 2020 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have captured a striking photo of the open cluster NGC 2203. This Hubble image shows the open cluster...

This multiwavelength mosaic, which combines more than 750 ALMA radio images and 9 Hubble infrared images, shows the star protocluster G286.21+0.17. ALMA reveals molecular clouds (purple) and Hubble reveals stars and glowing dust (yellow and red). Image credit: ALMA / ESO / NAOJ / NRAO / Y. Cheng et al / AUI / NSF / S. Dagnello / NASA / ESA / Hubble.

ALMA and Hubble Capture Celestial Fireworks in Massive Stellar Protocluster

Jul 2, 2020 by News Staff

Using the Atacama Large Millimeter/submillimeter Array (ALMA) and the NASA/ESA Hubble Space Telescope, astronomers have observed G286.21+0.17, a massive...

An artist’s impression of the Roque 12 binary system in the Pleiades cluster. Image credit: Sci-News.com / NASA / ESA / AURA / Caltech.

Young Brown Dwarf in Pleiades Cluster Has Companion

Jun 11, 2020 by Natali Anderson

Astronomers have found evidence of a substellar companion — a low-mass brown dwarf or a giant planet — orbiting Roque 12, a member of the young...

This Hubble image shows the massive globular cluster NGC 6441. The image is made up of observations from Hubble’s Wide Field Camera 3 (WFC3) and Advanced Camera for Surveys (ACS) in the ultraviolet and optical parts of the spectrum. Four 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 / G. Piotto.

Hubble Snaps Beautiful Image of Globular Cluster NGC 6441

Jun 1, 2020 by Enrico de Lazaro

NASA has released a beautiful new image taken by the Hubble Space Telescope of NGC 6441, one of about 150 globular clusters belonging to our Milky Way...

This Hubble image shows the star cluster Westerlund 2. Image credit: NASA / ESA / Hubble Heritage Team / STScI / AURA / A. Nota / Westerlund 2 Science Team.

Westerlund 2’s Core is No Place to Form Planets, Astronomers Say

May 29, 2020 by News Staff

Astronomers using the NASA/ESA Hubble Space Telescope have observed young stars in a crowded stellar cluster called Westerlund 2. They’ve found that...

Intermediate-Mass Black Hole Found in Outskirts of Lenticular Galaxy

Apr 1, 2020 by News Staff

A bright X-ray source in a massive star cluster in the outskirts of 6dFGS gJ215022.2-055059, a barred lenticular galaxy located about 806 million light-years...

This image from NASA’s Spitzer Space Telescope shows NGC 2264. The newly-revealed protostars appear as pink and red specks toward the center of the image. Image credit: NASA / JPL-Caltech / P.S. Teixeira, Center for Astrophysics.

Spitzer Space Telescope Sees Protostars in NGC 2264

Dec 24, 2019 by Enrico de Lazaro

NASA has released a photo taken by its Spitzer Space Telescope that shows numerous newborn stars, or protostars, in NGC 2264. This image from NASA’s...

This image from ESO’s Very Large Telescope shows the emission nebula RCW 36. Image credit: ESO.

Very Large Telescope Takes Close Look at Emission Nebula RCW 36

Dec 9, 2019 by News Staff

Using the Focal Reducer and low dispersion Spectrograph (FORS) instrument on ESO’s Very Large Telescope (VLT), astronomers have obtained a remarkable...

This Hubble image reveals an ancient, glimmering ball of stars called NGC 1466. It is a globular cluster that is slowly moving through space on the outskirts of the Large Magellanic Cloud. NGC 1466 has a mass equivalent to roughly 140,000 Suns and an age of around 13.1 billion years, making it almost as old as the Universe itself. Image credit: NASA / ESA / Hubble.

Hubble Observes Five Aging Star Clusters in Large Magellanic Cloud

Sep 10, 2019 by News Staff

A team of astronomers from Italy and Germany has used the NASA/ESA Hubble Space Telescope to observe five aging star clusters — all born at about...

Gaia’s all-sky view of our Milky Way Galaxy and neighboring galaxies, based on measurements of nearly 1.7 billion stars. Brighter regions indicate denser concentrations of especially bright stars, while darker regions correspond to patches of the sky where fewer bright stars are observed. The color representation is obtained by combining the total amount of light with the amount of blue and red light recorded by Gaia in each patch of the sky. The bright horizontal structure that dominates the image is the Galactic plane, the flattened disc that hosts most of the stars in our home Galaxy. In the middle of the image, the Galactic center appears vivid and teeming with stars. Darker regions across the Galactic plane correspond to foreground clouds of interstellar gas and dust, which absorb the light of stars located further away, behind the clouds. Many of these conceal stellar nurseries where new generations of stars are being born. Sprinkled across the image are also many globular and open clusters -- groupings of stars held together by their mutual gravity, as well as entire galaxies beyond our own. The two bright objects in the lower right of the image are the Large and Small Magellanic Clouds, two dwarf galaxies orbiting the Milky Way. In small areas of the image where no color information was available -- to the lower left of the Galactic center, to the upper left of the Small Magellanic Cloud, and in the top portion of the map -- an equivalent grayscale value was assigned. Image credit: ESA / Gaia / DPAC.

ESA’s Gaia Space Telescope Traces Milky Way’s Stellar Families

Sep 2, 2019 by News Staff

Astronomers using data from ESA’s Gaia spacecraft have identified a number of clusters, associations and co-moving groups of stars within about 3,300...

This Spitzer image shows the Cepheus C and Cepheus B regions. The image was compiled using data from Spitzer’s Infrared Array Camera (IRAC) and the Multiband Imaging Photometer (MIPS). The colors correspond with IRAC wavelengths of 3.6 microns (blue), 4.5 microns (cyan) and 8 microns (green), and 24 microns (red) from the MIPS instrument. Image credit: NASA / JPL-Caltech.

Spitzer Sees Stars and Dense Clouds in Cepheus

Jun 3, 2019 by News Staff

A large celestial mosaic from NASA’s Spitzer Space Telescope shows multiple clusters of stars and clouds of gas and dust in the constellation of Cepheus. This...

This Hubble image shows a globular cluster called Messier 75. Image credit: NASA / ESA / Hubble / F. Ferraro et al.

Hubble Observes Globular Cluster Messier 75

Apr 22, 2019 by News Staff

NASA has released an absolutely beautiful photo taken by the NASA/ESA Hubble Space Telescope of the globular cluster Messier 75. This Hubble image shows...

This image of Messier 62 is a composite of separate exposures acquired by Hubble’s Wide Field Camera 3 (WFC3) and Advanced Camera for Surveys (ACS) instruments. It is based on data obtained through four filters. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / S. Anderson et al.

Hubble Space Telescope Sees Messier 62

Apr 15, 2019 by News Staff

NASA has released a stunning image snapped by the agency’s Hubble Space Telescope of the globular cluster Messier 62. This image of Messier 62 is a composite...

«‹4 567 8 ›»