Завантаження...

Markarian 817 (captured by the Hubble Space Telescope)
 

 

Download top free photographs!

 

This photo was viewed 16 times and was downloaded in full size 5 times.

This photo was liked 0 times


Source page:
http://commons.wikimedia.org/wiki/File:Markarian_817_(captured_by_the_Hubble_Space_Telescope).jpg

Description Rings of brilliant blue stars encircle the bright, active core of this spiral galaxy, whose monster black hole is blasting material into space at over 14 million kilometres per hour. Viewed nearly face-on, the galaxy, called Markarian 817, shows intense star-forming regions and dark bands of interstellar dust along its spiral arms.

Observations by the new Cosmic Origins Spectrograph (COS) aboard the NASA/ESA Hubble Space Telescope captured the powerful outflow of material from this galaxy.

The COS spectrum of Markarian 817 highlights the outflow's dynamic nature. A gas cloud containing hydrogen that was detected in Hubble data taken in 1997 does not appear in the COS observation because the cloud has apparently been driven out by an outflow of material from the galaxy.

This discharge is being powered by a huge disc of matter encircling the supermassive black hole, which is 40 million times more massive than our Sun. The disc is driving the material out of the galaxy through powerful winds, produced by streams of charged particles. Some of the outflow rains back onto the galaxy. The rest settles into the intergalactic gas.

Markarian 817 is 430 million light-years away in the northern constellation of Draco. COS observed the galaxy on 4 August 2009, using its far-ultraviolet detector to distinguish the outflow from the galaxy’s core. The Hubble image was taken with the Wide Field Camera 3 on 2 August 2009. The composite image was made by using filters that isolate light from the blue, green and infrared portions of the spectrum, as well as emission from glowing hydrogen.
Date 2 August 2009(2009-08-02)
Source https://www.spacetelescope.org/images/html/heic0910n.html (direct link)
Author NASA, ESA and the Hubble SM4 ERO Team
Permission
(Reusing this file)
w:en:Creative Commons
attribution		 This file is licensed under the Creative Commons Attribution 3.0 Unported license.
ESA logo.svg
Attribution: ESA/Hubble
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).
Photo's description:

Rings of brilliant blue stars encircle the bright, active core of this spiral galaxy, whose monster black hole is blasting material into space at over 14 million kilometres per hour. Viewed nearly face-on, the galaxy, called Markarian 817, shows intense star-forming regions and dark bands of interstellar dust along its spiral arms.

Licensing:
Creative Commons Attribution 3.0 Unported


Only registered users can post comments. Please login.


EXIF data:
File name markarian_817__captured_by_the_hubble_space_telescope_.jpg
Size, Mbytes 2.3031884765625
Mime type image/jpeg




The images at Free-Photos.biz come mainly from Wikimedia Commons or from our own production. The photos are either in the public domain, or licensed under free linceses: Free-Photos.biz license, GPL, Creative Commons or Free-Art license. Some very few other photos where uploaded to Free-Photos.biz by our users and released into the public domain or into free usage under another free license (like GPL etc.)

While the copyright and licensing information supplied for each photo is believed to be accurate, Free-Photos.biz does not provide any warranty regarding the copyright status or correctness of licensing terms. If you decide to reuse the images from Free-Photos.biz, you should verify the copyright status of each image just as you would when obtaining images from other sources.

The use of depictions of living or deceased persons may be restricted in some jurisdictions by laws regarding personality rights. Such images are exhibited at Free-Photos.biz as works of art that serve higher artistic interests.

PRIVACY POLICY


By registering your account and/or by subscribing to new and newly rated photographs you agree we may send you the links to photos and we may occasionally share other information with you.

We do NOT disclose your personal data.





christianity portal