Hubble Sees Two Quasars Side by Side in the Early Universe - by ScottyJ_PhD
. “This is the uniqueness of this study. It is actually telling us that this population exists, and now we have a method to identify double quasars that are separated by less than the size of a single galaxy.”
As bright as quasars are, detecting – and interpreting – the signals received from distant quasars is not easy. This pair of quasars existed just three billion years after the Big Bang, during a time period known as cosmic noon: the era between 10 and 11 billion years ago when star formation in the Universe was at its peak. They are very, very distant objects.
Like putting together a puzzle, each wavelength offered different information about the quasars, and helped researchers understand what was going on in this distant binary galaxy system. The double quasars J0749 + 2255 are so close together that they are separated by less than the space of a single galaxy, so resolving them at a distance of 10-11 billion light years away is an incredible feat.
Argentina Últimas Noticias, Argentina Titulares
Similar News:También puedes leer noticias similares a ésta que hemos recopilado de otras fuentes de noticias.
'Hubble trouble' could deepen with new measurement of the universe's expansionPhysicists have improved the accuracy of a technique that uses variable stars to measure distances in the universe, providing a new figure for its expansion rate.
Leer más »
Olivia Wilde and Jason Sudeikis Have Amicable Reunion at Son's Soccer GameThe exes were seen standing side by side, chatting and clapping for son Otis.
Leer más »
NASA’s Hubble Space Telescope spots runaway black hole creating ‘trail of stars’Using a Hubble Space Telescope, NASA researchers accidentally stumbled upon a supermassive black hole leaving behind a 'contrail' of newborn stars.
Leer más »
How are Hubble Space Telescope images made?The science behind all those pretty pictures.
Leer más »
Hubble Space Telescope captures black hole barreling across spaceNASA's Hubble Space Telescope captured an image of a 'runaway' supermassive black hole that left behind a never-before-seen star trail across a great distance.
Leer más »
The Nancy Grace Roman Space Telescope will 'rewind' the universe. Here's howThe powerful space telescope will take a vastly wider look at the universe than Hubble or the James Webb Space Telescope, potentially helping to unravel pressing cosmic mysteries.
Leer más »