Billions of light year aside , quasars are the undimmed objective in the universe . So bright , in fact , that we ’d never stick a in force look at what makes them tick … until scientists discovered a giant nebula relate galaxies and fueling one quasar .
A subclass of galaxies contain an incredibly alive galactic nucleus , think to contain a fundamental black hole millions of times the bulk of our Sun . This huge amount of activity makes these extragalactic nebula what ’s known as quasi - stellar receiving set root , or quasars for short . The quasar is basically the result of the massive accretion disc of debris , which can be anywhere from ten to ten - thousand times the size of the dim pickle itself . The improbably strong gravitative forces in the accretion disk make the detritus become exceedingly hot , emitting massive amounts of energy , which creates what we see as the quasi-stellar radio source .
There are two case of quasar , both defined in term of the thick , opaque ring that forms around them . If this band is positioned relative to our vantage point such that it looks like a circle and we can clearly see the quasar inside , then it ’s a Type I quasar . If the ring is position such that it blocks our horizon of the bright quasar within and hide all the radiation therapy , that ’s a Type II quasar . Not surprisingly , Type I quasar have attracted far more attention than Type II quasars , although a chemical group of uranologist led by Montserrat Villar Martin of Spain ’s Instituto de Astrofisica de Andalucía - CSIC are await to change that .
Using Chile ’s Very Large Telescope – you really have to appreciate the thought that goes into naming scope – and the Gran Telescopio Canarias on Spain ’s Canary Islands , Villar Martin and his squad zeroed in on SDSS J0123 + 00 , a Type II quasar . Although far firmly to detect than their bright brethren , Type II quasar are potentially far more useful to uranologist in understand the broad cosmic environs around the quasar . This is because the surround rings dim the otherwise overwhelmingly bright radiation , tolerate the stargazer to get a good look at what surrounds the quasar .
What they key out is nothing short of awe - inspiring . They chance upon a faint nebula of ionised gas surrounding the entire galaxy . This nebula is about six times the size of it of our own beetleweed at roughly 590,000 light-colored years long . The nebula acts as a cosmic bridge between SDSS J0123 + 00 and its neighboring galaxy , fortify the hypothesis that quasars are in part the result of intense interaction between galaxy . Here ’s a visual estimation of the vast nebula of ionized gas connected to galaxy SDSS J0123 + 00 and its quasi-stellar radio source :
https://www.youtube.com/watch?v=RTcy03fJt5I
Villar - Martin say this allow for strong backup for the idea that the accumulation discs that form quasi-stellar radio source are indeed the debris from these astronomic interactions , with the nebula a key link in the interchange of cosmic cloth . Indeed , the nebula is itself most likely write of the detritus of these interaction .
[ Monthly Notices of the Royal Astronomical Society ]
AstronomyAstrophysicsQuasarScienceSpace
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