Tag Archive for 'Omega Centauri'

Omega Centauri is about 10 times as massive as other big globular clusters. Image credit: NASA / ESA / Hubble / Maximilian Häberle, MPIA.

Astronomers Find Intermediate-Mass Black Hole in Milky Way’s Most Massive Globular Cluster

Jul 10, 2024 by News Staff

Using more than 500 images from the NASA/ESA Hubble Space Telescope, astronomer have found evidence for a 20,000-solar-mass black hole at the center of...

This composite image shows Omega Centauri, a globular cluster some 17,710 light-years away in the constellation of Centaurus; in the image, the Chandra data are shown along an optical view from Hubble and infrared view from Spitzer. Image credit: NASA / CXC / San Francisco State University / Cool et al. / ESA / STScI / JPL / Caltech / SAO / N. Wolk.

Astronomers Find Group of Spider Pulsars in Omega Centauri

Dec 4, 2023 by News Staff

Spider pulsars are a type of millisecond pulsar that strips their companion stars of their atmospheres through energetic winds. This composite image shows...

An artist’s impression of what one of extreme horizontal branch stars, and its giant whitish spot, might look like. The spot is bright, takes up a quarter of the star’s surface and is caused by magnetic fields. As the star rotates, the spot on its surface comes and goes, causing visible changes in brightness. Image credit: ESO / L. Calçada, INAF-Padua / S. Zaggia.

Astronomers Detect Giant Spots on Extremely Hot Stars in Three Globular Clusters

Jun 2, 2020 by News Staff

Using several instruments on ESO’s Very Large Telescope, VLT Survey Telescope and the New Technology Telescope, astronomers have discovered giant spots...

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...

The globular cluster Omega Centauri is seen in all its splendor in this image captured with the WFI camera from ESO’s La Silla Observatory. The image shows only the central part of the cluster. Image credit: ESO.

Astronomers Solve Mystery of ‘Blue Hook’ Stars

Jun 29, 2015 by News Staff

An international team of astronomers, led by Dr Francesca D’Antona from the INAF-Osservatorio Astronomico di Roma, Italy, has found that the so-called...