Sentences with phrase «lowest black hole masses»

RX J1140.1 +0307 is such a galaxy — in fact, it is centered on one of the lowest black hole masses known in any luminous galactic core.

Not exact matches

Hailey and his team used Chandra data because black holes at the galactic center should be most visible via x-rays, produced when the black holes form a binary system with a low - mass star and feed on their captured companion.

That means lower - mass stars that go on to form neutron stars would blast more of their outer layers away than higher - mass stars that become black holes.

«It is this process of swapping material that has imparted the unique chemical signature to Westerlund 1 - 5 and allowed the mass of its companion to shrink to low enough levels that a magnetar was born instead of a black hole — a game of stellar pass - the - parcel with cosmic consequences!»

Big stars with low metal content don't shed as much of their mass over time, so when one of them dies, almost all of its mass will wind up in the black hole.

Strangely, the largest black hole in that group, HSC J1205 - 0000, had the lowest feeding rate: The black hole is 4.7 billion solar masses yet eats at only 6 percent of its limit.

When it comes time for one to end it all in a supernova, there isn't as much matter left to collapse in on itself, resulting in a lower - mass black hole.

With such a relatively low mass for the central black hole, models for the emission from the object can not explain the observed spectrum.

Known as Seyfert galaxies, these are another type of active galaxy with relatively low mass black holes residing at their centers.

The new ALMA observations, however, revealed something even more remarkable, signs that eleven low - mass protostars are forming within 1 parsec — a scant 3 light - years — of the galaxy's central black hole.

ALMA has revealed the telltale signs of eleven low - mass stars forming perilously close — within three light - years — to the Milky Way's supermassive black hole, known to astronomers as Sagittarius A * (Sgr A *).

«Despite all odds, we see the best evidence yet that low - mass stars are forming startlingly close to the supermassive black hole at the center of the Milky Way,» said Farhad Yusef - Zadeh, an astronomer at Northwestern University in Evanston, Illinois, and lead author on the paper.

ALMA discovers remarkably early signs of low - mass star formation near the supermassive black hole at the center the Milky Way.

Low - metallicity stars thus «lose less mass, so more of it goes into the black hole, for the same initial mass», Nelemans says.

Candidates for «missing mass» included neutrinos, black holes, dead stars, low - mass stars, various subatomic particles, and objects dreamed up by cosmologists simply to solve this problem.

If the gas cloud named CO -0.40-0.22, located only 200 light - years away from the center of the Milky Way, does contain an intermediate black hole, it would provide scientists an opportunity to test the theory that supermassive black holes evolve from these lower - mass seeds.

Astronomers have combined data from NASA's Chandra X-ray Observatory, the Hubble Space Telescope and the National Science Foundation's Karl G. Jansky Very Large Array (VLA) to conclude that a peculiar source of radio waves thought to be a distant galaxy is actually a nearby binary star system containing a low - mass star and a black hole.

His main interests are neutron stars (especially magnetars and neutron stars in low - mass X-ray binaries), supermassive black holes (especially the one in our galaxy, called Sagittarius A *) and astrophysical gravitational waves.

For example, the team found that a merger of two black holes with significantly unequal masses would be a strong indication that the stars formed almost entirely from hydrogen and helium — called low - metallicity stars — with other elements contributing fewer than 0.1 percent of stellar matter (for comparison, this fraction is about 2 percent in our Sun).

Our results indicate that the event was probably caused by a rapidly spinning supermassive black hole as it destroyed a low - mass star,» Leloudas said in the statement Monday.

Although black holes can, in theory, have masses as low as calculated for the merging objects, the coincident gamma - ray burst suggested that the stars had to have been made of matter — and matter, unlike black holes, emits light.

The three confirmed detections by LIGO (GW150914, GW151226, GW170104), and one lower - confidence detection (LVT151012), point to a population of stellar - mass binary black holes that, once merged, are larger than 20 solar masses — larger than what was known before.

The three confirmed detections by LIGO (GW150914, GW151226, GW170104), and one lower - confidence detection (LVT151012), point to a population of stellar - mass binary black holes that, once merged, are larger than 20 solar masses.