Black Hole News

Fermi Helps Link Cosmic Neutrino to Blazar Blast

April 28, 2016

0 Comments

NASA's Fermi Helps Link Cosmic Neutrino to Blazar Blast

Nearly 10 billion years ago, the black hole at the center of a galaxy known as PKS B1424-418 produced a powerful outburst. Light from this blast began arriving at Earth in 2012. Now astronomers using data from NASA’s Fermi Gamma-ray Space Telescope have shown that a record-breaking neutrino seen around the same time likely was […]

Continue reading...

New Discovery Challenges Dark Matter, Stellar Acceleration Models

April 13, 2016

6 Comments

New Hypervelocity Binary Star Challenges Dark Matter, Stellar Acceleration Models

Astronomers have discovered a hypervelocity binary star that challenges dark matter and stellar acceleration models. A team of astronomers at the Friedrich Alexander University led by Péter Németh has discovered a binary star moving nearly at the escape velocity of our galaxy. There are about two dozen so-called hypervelocity stars known to be escaping the […]

Continue reading...

Astronomers Discover a 17 Billion Solar-Mass Black Hole in an Unlikely Place

April 11, 2016

0 Comments

A 17 Billion Solar-Mass Black Hole Discovered

Using the Hubble Space Telescope and the Gemini Telescope in Hawaii, a team of astronomers has uncovered one of the biggest supermassive black holes in an unlikely place: the center of a galaxy that lies in a quiet backwater of the Universe. Until now, the biggest supermassive black holes — those having more than 10 […]

Continue reading...

Gravitational Waves Could Soon be Detectable by Existing Radio Telescopes

February 25, 2016

0 Comments

Low-Frequency Gravitational Waves Could Soon be Detectable by Existing Radio Telescopes

A newly published study from the North American Nanohertz Observatory for Gravitational Waves reveals that low-frequency gravitational waves could soon be detectable by existing radio telescopes. The recent detection of gravitational waves by the Laser Interferometer Gravitational-Wave Observatory (LIGO) came from two black holes, each about 30 times the mass of our sun, merging into […]

Continue reading...

New Research Shows LIGO’s Twin Black Holes Might Have Been Born Inside a Single Star

February 24, 2016

3 Comments

Twin Black Holes Born Inside a Single Star

Newly published research from the Harvard-Smithsonian Center for Astrophysics suggests that the burst detected by LIGO occurred because the two black holes lived and died inside a single, massive star. On September 14, 2015, the Laser Interferometer Gravitational-wave Observatory (LIGO) detected gravitational waves from the merger of two black holes 29 and 36 times the […]

Continue reading...

New ASTRO-H Satellite to Study Black Holes and Galaxy Clusters

February 10, 2016

0 Comments

New X-ray Observatory to Study Black Holes and History of Galaxy Clusters

Set to launch on Friday, the ASTRO-H satellite will help provide breakthroughs in a wide variety of high-energy phenomena in the cosmos, ranging from the superheated material on the brink of falling into a black hole to the evolution of vast galaxy clusters. Black hole enthusiasts, galaxy cluster aficionados, and X-ray astronomers have much to […]

Continue reading...

Chandra Observations Confirm a Counterjet from Pictor A

February 2, 2016

5 Comments

Pictor A Blast from Black Hole Far Away

Astronomers have discovered a giant jet spanning continuously for over 300,000 light years blasting out of the galaxy Pictor A. In addition to the main jet, they also discovered evidence for a jet moving in the opposite direction. The Star Wars franchise has featured the fictitious “Death Star,” which can shoot powerful beams of radiation […]

Continue reading...

Astronomers Detect Signs of an Invisible Black Hole at the Center of the Milky Way

January 15, 2016

2 Comments

Nobeyama Radio Telescope Detects Signs of an Invisible Black Hole

Using the Nobeyama Radio Telescope, a team of astronomers has detected signs of an invisible black hole with a mass of 100 thousand times the mass of the Sun around the center of the Milky Way. The team assumes that this possible “intermediate mass” black hole is a key to understanding the birth of the […]

Continue reading...

WISE Reveals Most Luminous Galaxy W2246-0526 Is Ripping Itself Apart

January 15, 2016

1 Comment

Astronomers View Luminous Galaxy Ripping Itself Apart

New research reveals that the distant galaxy W2246-0526 is expelling tremendously turbulent gas (a phenomenon never seen before in an object of this kind) and is tearing itself apart. In a far-off galaxy, 12.4 billion light-years from Earth, a ravenous black hole is devouring galactic grub. Its feeding frenzy produces so much energy, it stirs […]

Continue reading...

XMM-Newton Reveals High-Speed Winds Around a Supermassive Black Hole

January 14, 2016

0 Comments

XMM-Newton Reveals High-Speed Gas Streaming from a Spiral Galaxy

ESA’s XMM-Newton reveals that winds around a supermassive black hole located 800 million light-years from Earth are moving at 23,000–33,000 km/s, about 10% the speed of light. ESA’s XMM-Newton has found a wind of high-speed gas streaming from the center of a bright spiral galaxy like our own that may be reducing its ability to […]

Continue reading...

GRAVITY Instrument Reveals a New Double Star

January 13, 2016

1 Comment

GRAVITY Discovers New Double Star in Orion Trapezium Cluster

The first observations with the new GRAVITY probe reveal that one of the components of the Trapezium Cluster (Theta1 Orionis F) is a double star. Zooming in on black holes is the main mission for the newly installed instrument GRAVITY at ESO’s Very Large Telescope in Chile. During its first observations, GRAVITY successfully combined starlight […]

Continue reading...

Chandra Reveals Supermassive Black Hole Undergoing Powerful Outbursts

January 5, 2016

0 Comments

NASA's Chandra Finds Supermassive Black Hole

Using Chandra observations, astronomers have discovered one of the nearest supermassive black holes to Earth that is currently undergoing powerful outbursts. Such outbursts are part of the “feedback” process that is important to the evolution of the black hole and its host galaxy. Evidence for powerful blasts produced by a giant black hole has been […]

Continue reading...

Astronomers Use G1 and G2 to Probe the Accretion Flow Feeding Sgr A*

January 4, 2016

0 Comments

Astronomers Use Gas Clouds to Probe the Accretion Flow Feeding Sgr A

New research uses the G1 and G2 gas clouds to probe the accretion flow feeding Sgr A∗. The center of our Milky Way galaxy, about twenty-five thousand light years from Earth, is invisible to us in optical light because of the extensive amounts of absorbing, intervening dust. Radiation at many other wavelengths, however, including the […]

Continue reading...

Hubble Image of the Week – Spiral Galaxy NGC 4845

January 4, 2016

0 Comments

Hubble Image of Spiral Galaxy NGC 4845

This newly released Hubble image shows the spiral galaxy NGC 4845, which is located over 65 million light-years away in the constellation of Virgo (The Virgin). The galaxy’s orientation clearly reveals the galaxy’s striking spiral structure: a flat and dust-mottled disc surrounding a bright galactic bulge. NGC 4845’s glowing center hosts a gigantic version of […]

Continue reading...

How Large Can a Black Hole Grow? As Large as 50 Billion Solar Masses

December 23, 2015

0 Comments

Astronomers Reveal How Large Black Holes Can Grow

New research from the University of Leicester reveals how large black holes can grow to. Black holes at the heart of galaxies could swell to 50 billion times the mass of the sun before losing the discs of gas they rely on to sustain themselves, according to research at the University of Leicester. In a […]

Continue reading...

Astronomers Measure Magnetic Fields at Sagittarius A*

December 4, 2015

1 Comment

Telescope Reveals Magnetic Fields at Milky Way's Central Black Hole

Using the Event Horizon Telescope, astronomers have measured the magnetic fields just outside the event horizon of Sagittarius A* for the first time. Most people think of black holes as giant vacuum cleaners sucking in everything that gets too close. But the supermassive black holes at the centers of galaxies are more like cosmic engines, […]

Continue reading...

Astrophysicists Get First Glimpse of a Black Hole Eating a Star and Ejecting a High-Speed Flare

November 30, 2015

1 Comment

First Glimpse of Black Hole Eating Star

For the first time, a team of astrophysicists has witnessed a black hole swallowing a star and ejecting a flare of matter moving at nearly the speed of light. The finding reported in the journal Science tracks the star—about the size of our sun—as it shifts from its customary path, slips into the gravitational pull […]

Continue reading...

Astronomers Discover a Black Hole That Grew Much Quicker Than Its Host Galaxy

November 27, 2015

0 Comments

A Black Hole That Grew Much Quicker Than Its Host Galaxy

Researchers have discovered a black hole that grew much more quickly than its host galaxy. The discovery calls into question previous assumptions on the development of galaxies. In July 2015, researchers announced the discovery of a black hole, shown in the above illustration, that grew much more quickly than its host galaxy. The discovery calls […]

Continue reading...