Sentences with phrase «billions of solar masses»

Quasars are caused by the close encounter of two supermassive black holes, each with billions of solar masses and crammed into tight quarters at the center of a galaxy.

Accordingly, the collapse of millions or billions of solar masses of interstellar gas under gravitational force into a large black hole would account for the enormous energy output of quasars and certain galactic systems.

«The observations of extremely massive black holes in the very early Universe are somewhat surprising, since it is not straightforward to grow the mass of black hole from tens up to billions of solar masses in the limited time available,» Johansson said in a statement Tuesday.

Those seeds would have grown further, to billions of solar masses, by sucking in stars and gas.

Within the hearts of large galaxies lurk supermassive black holes weighing hundreds of millions or billions of solar masses.

Black holes come in two main weight classes: those about 10 times the sun's mass and supermassive ones with millions or billions of solar masses.

The death of stars can produce small black holes — with masses ranging from about three to 100 times the mass of the sun — but such stellar - mass black holes are tiny compared with the behemoths at the centers of galaxies, measuring millions to billions of solar masses.

Most galaxies, including our own Milky Way, have a black hole at their center, holding millions to billions of solar masses.

In most galaxies the central black hole would have been smaller than the billions of solar mass black holes for quasars.