News archive
3 items found page 1 of 1
|
|
| Galaxy NGC 4214: A star formation laboratory [heic1109] |
| Hubble's newest camera has taken an image of galaxy NGC 4214. This galaxy glows brightly with young stars and gas clouds, and is an ideal laboratory to research star formation and evolution. |
| Date: 12 May 2011 |
|
|
| Caught in the act by Herschel: galactic storms sweep away the gas |
| ESA's Herschel Space Observatory has detected massive amounts of molecular gas gusting at high velocities - in some cases in excess of 1000 kilometres per second - from the centres of a set of merging galaxies. Driven by star formation and central black holes, these powerful storms are strong enough to sweep away billions of solar masses of molecular gas and to interfere with global galactic processes. These observations indicate that, in the galaxies hosting the brightest Active Galactic Nuclei, outflows can clear the entire supply for creating stars and feeding the black hole. This finding provides long-sought-after evidence of highly energetic feedback processes taking place in galaxies as they evolve. |
| Date: 09 May 2011 |
|
|
| Two views of a lopsided galaxy [heic1108] |
| The Meathook Galaxy, or NGC 2442, has a dramatically lopsided shape. One spiral arm is tightly folded in on itself and host to a recent supernova, while the other, dotted with recent star formation, extends far out from the nucleus. The NASA/ESA Hubble Space Telescope and the MPG/ESO 2.2-metre telescope have captured two contrasting views of this asymmetric spiral galaxy. |
| Date: 04 May 2011 |
|
|
3 items found page 1 of 1
|
