Scientists suspect some sources: the Big Bang itself, shock waves from supernovas collapsing into black holes, and matter accelerated as it is sucked into
massive black holes at the centers of galaxies.
NIRC2 is probably best known for helping to provide definitive proof of a central
massive black hole at the center of our galaxy.
Blazars are active galactic nuclei — energetic regions surrounding
massive black holes at the centers of galaxies.
Not exact matches
And
at the
center of it all is a celebrity couple: the first known pairing
of black holes and the most
massive ones found outside
of the cores
of galaxies.
Josh Bloom, an astronomer
at the University
of California, Berkeley, traced the burst to the
center of a
galaxy that hosts a
black hole millions
of times as
massive as the sun, and concluded that the
hole had just eaten a star - size meal (illustrated below).
The current model
of active
galaxies such as M87 posits that each one harbors
at its
center a
black hole many millions or even billions
of times more
massive than our own sun, all packed into a space about the size
of our solar system.
Previously, astronomers have used x-ray telescopes to observe strong winds very near the
massive black holes at galactic
centers (artist's concept, inset) and infrared wavelengths to detect the vast outflows
of cool gas (bluish haze in artist's concept, main image) from such
galaxies as a whole, but they've never done so in the same
galaxy.
Supermassive
black holes, which can be hundreds
of thousands to billions
of times more
massive than the sun, may be found
at the
center of most
galaxies.
Quasars are tremendously bright objects composed
of enormous
black holes accreting matter
at the
centers of massive galaxies.
The nearly 100 percent polarization
of the radio bursts is unusual, and has only been seen in radio emissions from the extreme magnetic environments around
massive black holes, such as those
at the
centers of galaxies.
This may help solve such mysteries as how gas clouds are triggered to form new stars and when the
massive black hole at the
center of every mature
galaxy forms.
SgrA * closeup: The blue fuzzy object
at the
center are X-rays from emitted Sgr A *, the super
massive black hole at the
center of our Milky Way
galaxy.
His infrared studies
of the
center of the
galaxy with Reinhard Genzel, now a professor
of physics
at UC Berkeley and director
of the Max Planck Institute for Extraterrestrial Physics, revealed in 1985 swirling gas clouds that could only be orbiting a
massive object, presumably a
black hole.
Using NASA's super-sensitive Chandra X-ray space telescope, a team
of astronomers led by Q. Daniel Wang
at the University
of Massachusetts Amherst has solved a long - standing mystery about why most super
massive black holes (SMBH)
at the
centers of galaxies have such a low accretion rate — that is, they swallow very little
of the cosmic gases available and instead act as if they are on a severe diet.
The discovery was made as part
of a program to detect supermassive
black holes, millions or billions
of times more
massive than the Sun, that are not
at the
centers of galaxies.
«[A
massive black hole, 21,000,000 times more
massive than the Sun, lies
at the
center of a small
galaxy.]
The most accepted hypothesis is that
at the
center of each
of these
galaxies is a
massive or supermassive
black hole.
AO has measured the mass
of the giant
black hole at the
center of our Milky Way Galaxy, imaged the four
massive planets orbiting the star HR8799, discovered new supernovae in distant
galaxies, and identified the specific stars that were their progenitors.
Astronomers discovered a «ultramassive»
black hole that is 10,000 times more
massive than the
black hole at the
center of our
galaxy
A team
of astronomers has revealed tantalizing new information about the explosions
of massive stars, the workings
of galaxies with supermassive
black holes at their
centers, and clusters
of galaxies.
Chiara Mingarelli is a gravitational - wave astrophysicist who is looking to understand how supermassive
black holes in the
centers of massive galaxies merge, and if they merge
at all.
Black holes that form due to the collapse of massive stars typically have masses 5 - 20 times that of the sun, but supermassive black holes — found in the centers of nearly all known sizeable galaxies — are far bigger, at about hundreds of thousands, or even billions, of solar ma
Black holes that form due to the collapse
of massive stars typically have masses 5 - 20 times that
of the sun, but supermassive
black holes — found in the centers of nearly all known sizeable galaxies — are far bigger, at about hundreds of thousands, or even billions, of solar ma
black holes — found in the
centers of nearly all known sizeable
galaxies — are far bigger,
at about hundreds
of thousands, or even billions,
of solar masses.
She is focused on developing high - spatial - resolution imaging techniques to investigate star formation and the
massive black hole posited to exist
at the
center of our
galaxy.