Optical parameters of elliptical galaxies are tightly correlated, but theirx-ray parameters vary widely. The x-ray luminosity L_x ranges over more than anorder of magnitude for ellipticals having similar optical luminosity L_B. Thesource of this scatter has been elusive. We show here that the...
This year has delivered some awe-inspiring imagery of space, from the James Webb Space Telescope’s stunning shots of faraway stars and galaxies to images of the skies taken from here on planet Earth
A new image from the Hubble Space Telescope shows a small dwarf galaxy called IC 3430 that’s located 45 million light-years away. This galaxy is classified as both a dwarf galaxy, because of its small size, and an elliptical galaxy, because of its form. Elliptical galaxies are smooth and...
The never-seen-before galaxies are key to interpreting the development of the first stars and the formation of the first galaxies that later evolved into the elliptical galaxies like our own Milky Way that now populate the universe, the space agency said. One major goal of the program is to ...
Euclid is on a mission to shed light on two of the universe's greatest mysteries: dark energy and dark matter. TheEuropean Space Agency (ESA)said "spiral and elliptical galaxies, nearby and distant stars, star clusters, and much more" could be seen in the images released on Monda...
Scientists believe that Messier 31 is expected to collide with the Milky Way in approximately 4.5 billion years, and will merge to create a massive elliptical orlenticular galaxy. Clearly, you won’t have to worry about this happening for a while, but it is fascinating to think of this scena...
galaxies: elliptical and lenticular, cDgalaxies: fundamental parametersgalaxies: generalgalaxies: kinematics and dynamicsWe present an approach for utilizing astrometric orbit information to improve the yield of planetary images and spectra from a follow-on direct detection mission. This approach is based...
The imaged SMBH lies at the centre of the supergiant elliptical galaxy Messier 87, which is located in the Virgo constellation at a distance of around 50 million light years. Although relatively close in astronomical terms, its very large mass makes its size on the sky comparable to that of...
Astrophysicists have long tried to simulate the formation of our spiral galaxy, the Milky Way. Until now, such attempts have faltered on one of two points: Either the simulated spiral galaxies displayed too many stars at the center or the overall stellar mass was several times too big. For...
However, studying the detailed features of BH through optical astronomical observation poses considerable challenges. Recently, Event Horizon Telescope (EHT) collaboration exhibited images of two supermassive BHs, i.e., M87* [2,3,4,5,6,7] at the center of the giant elliptical galaxy M87 in ...