galaxy

05/15/2013 - 13:08

This multi-wavelength view shows 4C+29.30, a galaxy located some 850 million light years from Earth. The radio emission comes from two jets of particles that are speeding at millions of miles per hour away from a supermassive black hole at the center of the galaxy. The estimated mass of the black hole is about 100 million times the mass of our Sun. The ends of the jets show larger areas of radio emission located outside the galaxy.

 

04/18/2013 - 09:42

Using the telescope network ALMA, astronomers have been able to determine the positions of more than 100 of the most prolific galaxies with unprecedented accuracy. The exact positions could help to solve the mystery of the supposedly extremely high star formation rates: Accordingly the amount of radiation released is not from one but from several galaxies - each of which have more moderate star formation rate and in accordance with theoretical models.

 

03/22/2013 - 08:30

A group of astronomers led by Amelia Stutz of the Max Planck Institute for Astronomy in Heidelberg have discovered the youngest known protostar yet: stellar embryos deeply embedded in unexpectedly dense dust cocoons. The discovery promises new insights into the earliest stages of star formation, and consequently into the way our home star, the Sun, came into being. The scientists used both the Herschel Space Telescope and the submillimetre telescope APEX for their observations.

 

03/07/2013 - 11:15

These days the core of the Milky Way galaxy is a pretty tame place...cosmically speaking. The galactic black hole at the center is a sleeping giant. Existing stars are peacefully circling. Although conditions are favorable, there doesn’t even seem to be much new star formation going on.

 

02/27/2013 - 14:44

 A rapidly rotating supermassive black hole has been found in the heart of a spiral galaxy by ESA’s XMM-Newton and NASA’s NuSTAR space observatories, opening a new window into how galaxies grow.

 

02/13/2013 - 12:59

New data from NASA's Chandra X-ray Observatory suggest a highly distorted supernova remnant may contain the most recent black hole formed in the Milky Way galaxy. The remnant appears to be the product of a rare explosion in which matter is ejected at high speeds along the poles of a rotating star.