Astronomers map galactic space geysers

Astronomers say the so-called space geysers are being spewed out of newly-formed stars
Comment E-mail Print Share
First Published: Thu, Jan 03 2013. 06 13 PM IST
The milky way galaxy. A team of astronomers say that the “monster outflows” of energy which are visible from Earth and are streaming from the centre of the Milky Way at an estimated 1,000km per second. Photo: Nasa
The milky way galaxy. A team of astronomers say that the “monster outflows” of energy which are visible from Earth and are streaming from the centre of the Milky Way at an estimated 1,000km per second. Photo: Nasa
Melbourne: A team of astronomers have claimed that they have helped map “monster outflows” of energy which are visible from Earth and are streaming from the centre of the Milky Way at an estimated 1,000km per second.
Astronomers who are observing the phenomenon from a telescope in New South Wales (NSW) were qouted by ABC report as saying that the so-called space geysers are being spewed out of newly-formed stars and not from a black hole at the centre of the galaxy as previously thought.
The outflows were detected by astronomers from NSW and the US, Italy and The Netherlands. The findings have been reported in Nature publication.
“These outflows contain an extraordinary amount of energy—about a million times the energy of an exploding star,” the research team’s leader, CSIRO’s Ettore Carretti, said.
“They are not coming in our direction, but go up and down from the Galactic Plane. We are 30,000 light-years away from the Galactic Centre, in the Plane. They are no danger to us,” he said.
From top to bottom the outflows extend 50,000 light-years out of the galactic plane, equal to half the diameter of our galaxy. Seen from Earth, the outflows stretch about two-thirds across the sky from horizon to horizon.
Gianni Bernardi, from Harvard-Smithsonian Centre for Astrophysics, said the Parkes observations show that the energy streams are caused by “star-power” and not by a “black hole accretion disc” spinning in the centre of the Milky Way.
“The options were a quasar-like outburst from the black hole at the galactic centre, or star-power—the hot winds from young stars, and exploding stars,” he said.
Comment E-mail Print Share
First Published: Thu, Jan 03 2013. 06 13 PM IST
More Topics: astronomers | space geysers | galaxy | stars | earth |
blog comments powered by Disqus
  • Wed, Sep 17 2014. 04 45 PM
  • Wed, Sep 10 2014. 03 54 PM
ALSO READ close

Nasa expects to find first traces of alien life within next 20 years

Subscribe |  Contact Us  |  mint Code  |  Privacy policy  |  Terms of Use  |  Advertising  |  Mint Apps  |  About HT Media  |  Jobs
Contact Us
Copyright © 2014 HT Media All Rights Reserved