Galaxies and black holes

Updated: Oct 24, 2019


Two Black Holes Dancing in 3C 75 observed from the Chandra X-ray observatory! Awesome right! In the center of the active Galaxy 3C 75, two bright sources at the center of this composite x-ray (blue)/radio(pink) image are co-orbiting supermassive black holes powering the giant radio source 3C 75.


These two bright sources are surrounded by multimillion degree x-ray emitting gas and are blasting out relativistic particles. The supermassive black holes are separated by 25,000 light years. Placed at the cores of two merging galaxies in the Abell 400 galaxy cluster they are about 300 light years away.




Astronomers believe and conclude that these two supermassive black holes are bound together by gravity in a binary system in part because the jets consistent swept back appearance is most likely due to their common motion as they speed through the hot cluster gas at 1200 km/s. This spectacular comic merge are common in crowded galaxy cluster environment in the distant universe. In the final staged the mergers are expected to be intense sources of gravitational waves.


Image Credit: X-Ray:NASA/CXC/D. Hudson,T. Reiprich et al.(AIfA);Radio: NRAO/VLA/NRL

The Helix Nebula taken with the CFHT at top of a dormant volcano in Hawaii, USA. Our sun 🌞might one day look like this Helix Nebula, one of the brightest and resemblance of a planetary nebula. This Nebula is given technical designation of NGC7293 ☄️and lies 700 light-years away towards the constellation of the water Bearer (Aquaries) and also spans for approximately 2.5 light-years.




A gas cloud created at the end of the life of a sun-like star, with the outer gasses of the star expelled into space 🌫appear from our angle view as if we are looking down a Helix. The Central Stellar core is defined to become a white dwarf star and because it glows so strongly in causes the expelled gas in the space to fluoresce. If you look close up of the inner edge of the Nebula, complex gas 💨knots of unknown origin can be found. Image Credit: CFHT, Coelum, MegaCam, J.-C. Cuillandre (CFHT) & G. A. Anselmi (Coelum)

Unexpected X-Rays from Perseus Galaxy Cluster observed from the Chandra X-ray observatory Pictured, a composite image of this galaxy cluster shows visible and radio light in red filter and X-ray light from the earth orbiting the Chandra Observatory in blue filter.





However, Perseus Cluster shines strangely in one specific color of X-rays and the hypothesis to why is debated to be the long sought identity of DARK MATTER! At the center of the cluster is a 3.5 Kilo-electron volt (KeV) X-ray color that glows strongly only when regions outside of the cluster center are observed, while areas surrounding that likely central supermassive black hole is deficient in 3.5 KeV X-rays. One proposed resolution (although controversial) is that this might be the never seen before florescent dark matter FDM.


Thus is could absorb 3.5 KeV X-radiation and it might then emit these X-rays from all over the cluster, creating an emission line! Although if seen superposed infront of the central region surrounding the black hole, FDM’s absorption would be more prominent creating an absorption line.

Image Credit: X-ray: NASA/CXO/Oxford University/J. Conlon et al.; Radio: NRAO/AUI/NSF/Univ. of Montreal/Gendron-Marsolais et al.; Optical: NASA/ESA/IoA/A. Fabian et al.; DSS

#galaxy #space #astronomy #YasAsghari #Yas #blackhole

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