A star, in a period of thousand years, comes too close to the black hole which is present at the centre of the Milky Way, which gets ripped apart, sending a long streamer of gas whipping outward by the powerful gravity of the black hole. Do you think it is the end of the story?No!
No! In a recent study, scientists showed that the long streamer of gas whipping outward collects itself into a whopping object of size equal to a planet, but those objects then are flung throughout the galaxy in a game of cosmic “spitball.”
The findings were presented on Wednesday by Eden Girma, the lead author and an undergraduate student at Harvard University and a member of the Banneker/Aztlan Institute. On Friday she has also attended a press conference at a meeting of the American Astronomical Society.
Explaining the research, Grima said, “A single shredded star can form hundreds of these planet-mass objects. We wondered: Where do they end up? How close do they come to us? We developed a computer code to answer those questions.”
The author’s calculations and research indicate that the nearest of these planet-sized objects might be within a few hundred light-years of Earth. She also concluded that their weight might be somewhere between several Jupiters and Neptune. It is also said that the objects might be glowing from the heat formation but they aren’t bright enough to get detected as previous findings were unable to spot them.
However, it is expected that they will be detected somewhere in future with instruments like the Large Synoptic Survey Telescope and James Webb Space Telescope.
She also finds that 95 percent of these gigantic objects have speeds of about 20 million miles per hour (10,000 km/s) and which is the reasons the leave the galaxy instantly. Once launched it takes millions of years to reach the neighborhood of Earth.
Co-author James Guillochon of the Harvard-Smithsonian Center for Astrophysics (CfA) also expects that the other galaxies have bigger black holes at their core and the same process might occur in them as well.
The Harvard-Smithsonian Center for Astrophysics (CfA) is a joint collaboration between the Smithsonian Astrophysical Observatory and the Harvard College Observatory, which is headquartered in Cambridge, Mass. CfA scientists, organized into six research divisions, study the origin, evolution and ultimate fate of the universe.
Guillochon said, “Other galaxies like Andromeda are shooting these ‘spitballs’ at us all the time.” Although they might be planet-size, these objects would be very different from a typical planet. They are literally made of star-stuff, and since different ones would develop from different pieces of the former star, their compositions could vary.
The study yields the information that the objects form much faster than a planet. As the black hole only takes a day to shred the star, and around a year for fragments to be made, which pull themselves back together. While to built a starch made a planet like Jupiter, it took millions of years.
“Only about one out of a thousand free-floating planets will be one of these second-generation oddballs,” adds Girma.
Besides, NASA scientists recently have spotted out two monsters holes in the cosmic backyard of the space. Both of these black holes are the central region of ‘active galactic nuclei’, say the scientists of NASA after a significant research.
Using the relevant data from NASA telescopes, the scientists have finally spotted out that there are two super gigantic black holes, located at the mid centres of galaxies. It is very close to our Milky Way. The path was hidden deep behind veils of gas and dust. However, the scientists have finally put their eyes through it.
Black holes are the most mysterious entities in the Universe that have baffled scientists till today. Until this year, scientists were in doubt whether they exist or not. However, their existence was confirmed by LIGO as it discovered the gravitational waves. Black holes are the most dense objects present in the universe. Density is so much high that even a spoon full soil of Black Hole would weigh more than the mass of our Earth and gravitational pull is so huge that even light cannot escape from it.
Scientists still don’t know what actually happens inside a black hole as laws of Physics don’t apply there. A theory suggests that black holes have ‘back door’ which can be used to travel other parts of the universe in no time.