Astronomers studying a monolithic and unusual spiral galaxy have found hint at the possible fate of our own home , the Milky Way .
The extragalactic nebula has a number of interesting properties , before we even get into the really weird hooey . The extragalactic nebula isrotating speedily , may be one of the most massive galaxies in our local existence , and seems to be innocent of star - forming regions , with over 93 per centum of the star mass in the galaxy forming more than around 10 billion year ago .
But what sparked the interest group of the young team is that it is one of thelargest radio sourcesever found , with gigantic radio jet-propelled plane stretch 6 million light - years across emanating from the galactic core . That is unexpected , give that these jets are almost always find in elliptical galaxies .
The giant spiral galaxy compared to our own.Image credit: Bagchi and Ray et al./Hubble Space Telescope (CC BY 4.0)
" These bright and tremendous radio jets and lobe mark J2345−0449 as a unique source even among very monolithic spirals and the speedily acquire model of [ elephantine radio galaxies ] in the local Universe , which themselves pose many important astrophysical question , " the squad explain in their study .
" doubtless , this is a very strange occurrence , since for reason still nameless , such large - weighing machine , powerful radio jets ( typically on 100–1,000 kpc scale ) are almost only launched from bulge - dominated elliptical beetleweed host [ supermassive sinister holes ] , whereas the server of J2345−0449 is a spiral galaxy . therefore , such counterintuitive [ active astronomical lens nucleus ] take exception the stock image of growth and co - development of massive [ black holes ] in protrusion of galaxy and therefore , they are also of profound pastime as they may be the ideal astrophysical modelling of the central engine of radiocommunication galaxies and their feedback signatures on the stellar and gaseous matter of the galaxy . "
antecedently , it had been thought that these powerful fountain could not exist in volute galaxies , or more to the point , that whorled galaxies would not pull round the violent jets . But 947 million light - years away , there sits J2345−0449 , hosting well - define spiral arms , an undisturbed star band , a lambent nuclear bar , and an extremely active sinister hole station powerful outflows of blood plasma and radio receiver out into the cosmos .
" This discovery is more than just an oddity – it forces us to rethink how galaxies evolve , and how supermassive calamitous gob get in them and shape their environs , " lead author Professor Joydeep Bagchi , of CHRIST University , Bangalore , said in astatement .
" If a spiral galaxy can not only survive but thrive under such extreme conditions , what does this mean for the future of galaxies like our own Milky Way ? Could our extragalactic nebula one day experience similar eminent - energy phenomenon that will have serious import for the selection of precious lifetime in it ? "
While regain a turbinate galaxy that has survive such red natural process from the cardinal supermassive inglorious hole may sound like a " good thing " , it evoke that it ’s potential that our own galaxy could undergo similar force . For model , if a gas swarm , maven , or small wandflower were to be accreted by our own black hole Sagittarius A * , it could potentially spark off jet activity . One pointed at our Solar System , depending on the strength , could strip away our satellite ' atmospheres , damage the DNA of life due to radiation vulnerability , or damage our ozone stratum and top to aggregate extinction on Earth .
The jet , concord to the squad , could also alter the interstellar medium and quash virtuoso formation .
" Our detailed multiwavelength study of potential [ adept - forming ] gas let on that , while hot gas cools down in the monolithic extended anchor ring of this galaxy , novel superstar do not make in the centre because of possible feedback from the central accreting [ supermassive black hole ] with its knock-down radio jets , which heat up the gas again or press it beyond the extragalactic nebula ’s reach , " the squad write in their last . " For most of the galaxies like J2345−0449 and a few others observed , the action of the [ black hole ] seems to have put an end to or drastically reduced star organization but has not yet succeed in clear up them of all their cold gas . "
More detailed observations of the galaxy – which is also found to have around 10 time moredark matterthan the Milky Way – is ask to make sense of this new , unexpected enigma , consort to the team .
" understand these rare galaxy could cater vital clues about the unseen force govern the universe – admit the nature of dark topic , the foresightful - terminus fate of galaxies , and the origin of life , " carbon monoxide - author Shankar Ray , a Ph.D. student at CHRIST University , add .
" at long last , this study bring us one whole step closer to unravelling the secret of the cosmos , reminding us that the universe still holds surprises beyond our imagination . "
The study is release inMonthly Notices of the Royal Astronomical Society .
