Tag Archive for 'Binary black hole'

Chakrabarti et al identify an overlooked region that may prove to be rife with orbiting black holes and the origin of gravitational-wave chirps heard by the two Laser Interferometer Gravitational-Wave Observatory (LIGO) detectors in the United States and the Virgo detector in Italy. This Hubble image shows the barred spiral galaxy NGC 1300. Image credit: NASA / ESA / Hubble Heritage Team / STScI / AURA / P. Knezek, WIYN.

Merging Black Hole Binaries Might Lurk in Outskirts of Huge Spiral Galaxies

Nov 1, 2017 by News Staff

Conditions favorable for mergers of massive black holes exist in the outer gas disks of massive spiral galaxies, according to a study led by Rochester...

An artistic illustration of a binary black hole. Image credit: NASA / ESA / G. Bacon, STScI.

Astronomers Discover Five New Double Supermassive Black Holes

Oct 4, 2017 by News Staff

Five new pairs of merging supermassive black holes have been discovered by combining data from NASA’s Chandra X-ray Observatory, the Wide-Field Infrared...

Physicists Catch Fourth Gravitational Wave: GW170814

Sep 28, 2017 by News Staff

The LIGO Scientific Collaboration and the Virgo Collaboration report the first joint detection of gravitational waves, ripples in the fabric of space and...

Double Supermassive Black Hole is Most Compact Ever Found

Sep 19, 2017 by News Staff

Astronomers have discovered what may be the most compact binary supermassive black hole ever known in a galaxy about 400 million light years from Earth. An...

This artist’s conception shows two supermassive black holes, similar to those observed by Bansal et al, orbiting one another more than 750 million light years from Earth. Image credit: Josh Valenzuela, University of New Mexico.

First Detection of Orbital Motion in Supermassive Black Hole Binary

Jun 29, 2017 by News Staff

For the first time ever, astronomers have been able to observe and measure the orbital motion between two supermassive black holes — a discovery...

This image from ESO’s Very Large Telescope shows Markarian 1018, a galaxy located approximately 607 million light-years away. The faint loops of light around the galaxy are a result of its interaction and merger with another galaxy in the recent past. Image credit: CARS Survey / ESO.

Black Hole Duo Returns Active Galaxy Markarian 1018 to the Shadows

Sep 15, 2016 by News Staff

Astronomers using ESO’s Very Large Telescope and NASA’s Chandra and Hubble space telescopes have solved the mystery of a rare change in the behavior...

Two black holes are entwined in a gravitational tango in this artist’s conception. Image credit: NASA.

Binary Supermassive Black Holes May Be Rarer Than Thought

Sep 22, 2015 by News Staff

There may be fewer supermassive black hole binaries at the cores of galaxies than previously thought, says a team of scientists from Brandeis University...

Artist’s depiction of a black hole merger. Image credit: NASA / CXC / A. Hobart / Josh Barnes, University of Hawaii / John Hibbard, NRAO.

Astronomers Find Closest Pair of Supermassive Black Holes

Sep 17, 2015 by News Staff

A team of U.S. astronomers has found the closest pair of supermassive black holes ever discovered in the Universe. Artist’s depiction of a black hole...

This Hubble image shows the extraordinary galaxy Markarian 231. Image credit: NASA / ESA / Hubble Heritage Team / STScI / AURA / Hubble Collaboration / A. Evans, University of Virginia, Charlottesville / NRAO / Stony Brook University.

Supermassive Binary Black Hole Found in Nearest Quasar Markarian 231

Aug 27, 2015 by News Staff

An international team of astrophysicists and astronomers, led by Dr Youjun Lu of the National Astronomical Observatories of China, has found a supermassive...