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17/03/2019

Science & Technology - Astronomy picture of the day : M106: A Spiral Galaxy with a Strange Center

2019 March 17
See Explanation.  Clicking on the picture will download
 the highest resolution version available.
M106: A Spiral Galaxy with a Strange Center 
Image Credit: NASAESO , NAOJ, Giovanni Paglioli; Assembling and Processing: R. Colombari and R. Gendler

Explanation: What's happening at the center of spiral galaxy M106? A swirling disk of stars and gas, M106's appearance is dominated by blue spiral arms and red dust lanes near the nucleus, as shown in the featured image. The core of M106 glows brightly in radio waves and X-rays where twin jets have been found running the length of the galaxy. An unusual central glow makes M106 one of the closest examples of the Seyfert class of galaxies, where vast amounts of glowing gas are thought to be falling into a central massive black holeM106, also designated NGC 4258, is a relatively close 23.5 million light years away, spans 60 thousand light years across, and can be seen with a small telescope towards the constellation of the Hunting Dogs (Canes Venatici).

BIOMES - Prairies - savanes - brousses

Des prairies, des savanes et des brousses, il y en a aussi dans les régions tempérées. FuturaSciences