After no small mystery, we’re beginning to know more about more about ‘Oumuamua, the very first known interstellar object which was known to visit the Solar System. A latest study indicates that the object cannot be that large, for one thing. As the Spitzer Space Telescope’s infrared detection was not able to catch the cigar-shaped entity, which makes it relatively very small. It’s likely less than 2,600 feet at its longest. It also can not have a diameter more than 1,440 feet, and that figure could well be as small as 320 feet.
The research also found something really unusual: it’s a lot reflective, potentially up to 10 times more than Solar System comets. Just what caused it to be like this is not yet certain. It may be possible that ‘Oumuamua lost quite a lot of its surface dirt and dust as soon as it passed across the Sun, which (mixed with gas from the object itself) left it covered in reflective ice as well as snow. This is known to happen with local comets, although not always to this degree.
There’s one big problem with the verifying details: it may possibly be too late. The object is now known to be roughly as far from the Sun as is Saturn, which puts it quite far away for study by the present space telescopes. Whatever its exact nature might be, we may have to wait for a long time for getting more answers — if we get any at all.
Cosmic Pretzel Discovered 700 Light-Years Away from Earth
An image of two new born stars in the 11 system being described as a cosmic pretzel made up of a network of filaments of gas and dust has been captured by Astronomers. 11 system is part of the Barnard 59 nebula being around 700 light-years away from the earth.
The study’s lead author Felipe Alves in a statement has said that they can see 2 compact sources who’s size are similar to the asteroid belt in the solar system. They have interpreted it as circumstellar disks around two young stars. The separation between them is of 28 times the distance between the Sun and the Earth.
Alves added that they are expecting 2 level accretion process to drive the dynamics of the binary system during its mass accretion phase and they need to study more young binary systems in detail to understand how multiple stars form better.
The 2 circumstellar disks are surrounded by a larger disk that has a total mass equal to that of 80 Jupiter. The study’s co-author and managing director at MPE Paola Caselli has stressed that this is a really important result as they have finally imaged the complex structure of young binary stars with their feeding filaments connecting them to the disk in which they were born.
This has provided them with important constraints for current models of star formation. The baby stars gain mass in two stages from the much larger disk, first is when the mass is transferred in twirling loops making the pretzel image and second is when the stars gain mass from the circumstellar disks.
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