Astrophysicist Predicts Detached Eclipsing White Dwarfs to Merge Into an Exotic Star
ASTRO WATCH
A University of Oklahoma astrophysicist, Mukremin Kilic, and his team have discovered two detached, eclipsing double white dwarf binaries with orbital periods of 40...
A University of Oklahoma astrophysicist, Mukremin Kilic, and his team have discovered two detached, eclipsing double white dwarf binaries with orbital periods of 40 and 46 minutes, respectively. White dwarfs are the remnants of Sun-like stars, many of which are...
9 hours
Astrophysicist predicts detached, eclipsing white dwarfs to merge into exotic star
PHYS.ORG
A University of Oklahoma astrophysicist, Mukremin Kilic, and his team have discovered two detached, eclipsing double white dwarf binaries with orbital periods of 40 and 46...
A University of Oklahoma astrophysicist, Mukremin Kilic, and his team have discovered two detached, eclipsing double white dwarf binaries with orbital periods of 40 and 46 minutes, respectively. White dwarfs are the remnants of Sun-like stars, many of which are...
1 day
Astrophysicists Explain the Mysterious Behavior of Cosmic Rays
ASTRO WATCH
A team of scientists from Russia and China has developed a model which explains the nature of high-energy cosmic rays...
A team of scientists from Russia and China has developed a model which explains the nature of high-energy cosmic rays (CRs) in our Galaxy. These CRs have energies exceeding those produced by supernova explosions by one or two orders of...
1 day
Cosmic lens lets astronomers zoom in on a black hole’s burps
SCIENCE-NEWS
The beginnings of a jet from an active black hole in a distant galaxy were spotted thanks to a lucky alignment.
The beginnings of a jet from an active black hole in a distant galaxy were spotted thanks to a lucky alignment.
1 day
Can astronauts see stars from the space station?
PHYS.ORG
VIDEO
I've often been asked the question, "Can the astronauts on the Space Station see the stars?" Astronaut Jack Fischer provides an unequivocal answer of "yes!" with a recent post on Twitter of...
I've often been asked the question, "Can the astronauts on the Space Station see the stars?" Astronaut Jack Fischer provides an unequivocal answer of "yes!" with a recent post on Twitter of a timelapse he took from the ISS. Fischer...
1 day
Astrophysicists explain the mysterious behavior of cosmic rays
PHYS.ORG
A team of scientists from Russia and China has developed a model explaining the nature of high-energy cosmic rays (CRs) in our galaxy. These CRs have energies exceeding those produced by supernova...
A team of scientists from Russia and China has developed a model explaining the nature of high-energy cosmic rays (CRs) in our galaxy. These CRs have energies exceeding those produced by supernova explosions by one or two orders of magnitude....
2 days
An unusual white dwarf may be a supernova leftover
SCIENCE DAILY
Astronomers have identified a white dwarf star in our galaxy that may be the leftover remains of a recently discovered type of supernova.
Astronomers have identified a white dwarf star in our galaxy that may be the leftover remains of a recently discovered type of supernova.
2 days
Supermassive Black Holes Feed on Cosmic Jellyfish
ASTRO WATCH
Observations of “Jellyfish galaxies” with ESO’s Very Large Telescope have revealed a previously unknown way to fuel supermassive black holes. It seems...
Observations of “Jellyfish galaxies” with ESO’s Very Large Telescope have revealed a previously unknown way to fuel supermassive black holes. It seems the mechanism that produces the tentacles of gas and newborn stars that give these galaxies their nickname also...
3 days
Cosmic Magnifying Lens Reveals Inner Jets of Black Holes
ASTRO WATCH
Astronomers using Caltech's Owens Valley Radio Observatory (OVRO) have found evidence for a bizarre lensing system in space,...
Astronomers using Caltech's Owens Valley Radio Observatory (OVRO) have found evidence for a bizarre lensing system in space, in which a large assemblage of stars is magnifying a much more distant galaxy containing a jet-spewing supermassive black hole. The discovery...
3 days
Supermassive black holes feed on cosmic jellyfish
PHYS.ORG
An Italian-led team of astronomers used the MUSE (Multi-Unit Spectroscopic Explorer) instrument on the Very Large Telescope (VLT) at ESO's Paranal Observatory in Chile to study how gas can be stripped from galaxies. They...
An Italian-led team of astronomers used the MUSE (Multi-Unit Spectroscopic Explorer) instrument on the Very Large Telescope (VLT) at ESO's Paranal Observatory in Chile to study how gas can be stripped from galaxies. They focused on extreme examples of jellyfish...
3 days
Gravitational ‘Milli-Lens’ Reveals Clumps of Hot Gas Streaming from Supermassive Black Hole
SCI-NEWS.COM
An international team of astronomers has found evidence for a unique gravitational lensing system, in which a massive star cluster is magnifying an extremely...
An international team of astronomers has found evidence for a unique gravitational lensing system, in which a massive star cluster is magnifying an extremely distant galaxy containing a jet-spewing supermassive black hole. Many supermassive black holes at the centers of...
3 days
From Exoplanets to Galaxies: NASA Chooses 6 Missions for Further Study
SPACE.COM
NASA chose six astrophysics Explorers Program proposals for further study on Aug. 9. The proposed missions have science goals all over the universe, ranging from exoplanets...
NASA chose six astrophysics Explorers Program proposals for further study on Aug. 9. The proposed missions have science goals all over the universe, ranging from exoplanets to galaxies.
3 days
Radio relic discovered in a low-mass merging galaxy cluster
PHYS.ORG
Astronomers have detected a new single radio relic in a low-mass merging galaxy cluster known as PLCK G200.9−28.2. The finding, presented Aug. 5 in a paper published on the arXiv...
Astronomers have detected a new single radio relic in a low-mass merging galaxy cluster known as PLCK G200.9−28.2. The finding, presented Aug. 5 in a paper published on the arXiv pre-print server, could offer some hints about merging processes in...
4 days
Cosmic magnifying lens reveals inner jets of black holes
PHYS.ORG
Astronomers using Caltech's Owens Valley Radio Observatory (OVRO) have found evidence for a bizarre lensing system in space, in which a large assemblage of stars is magnifying a much more...
Astronomers using Caltech's Owens Valley Radio Observatory (OVRO) have found evidence for a bizarre lensing system in space, in which a large assemblage of stars is magnifying a much more distant galaxy containing a jet-spewing supermassive black hole. The discovery...
4 days
Cosmic velocity web: Motions of thousands of galaxies mapped
SCIENCE DAILY
The cosmic web -- the distribution of matter on the largest scales in the universe -- has usually been defined through the distribution of galaxies. Now, a new study by...
The cosmic web -- the distribution of matter on the largest scales in the universe -- has usually been defined through the distribution of galaxies. Now, a new study by a team of astronomers demonstrates a novel approach. Instead of...
4 days
Team redefines cosmic velocity web
PHYS.ORG
The cosmic web—the distribution of matter on the largest scales in the universe—has usually been defined through the distribution of galaxies. Now, a new study by a team of astronomers from France, Israel and Hawaii demonstrates a novel...
The cosmic web—the distribution of matter on the largest scales in the universe—has usually been defined through the distribution of galaxies. Now, a new study by a team of astronomers from France, Israel and Hawaii demonstrates a novel approach. Instead...
4 days
Researchers Redefine Cosmic Velocity Web
ASTRO WATCH
The cosmic web -- the distribution of matter on the largest scales in the universe -- has usually been defined through the distribution of galaxies. Now,...
The cosmic web -- the distribution of matter on the largest scales in the universe -- has usually been defined through the distribution of galaxies. Now, a new study by a team of astronomers from France, Israel and Hawaii demonstrates...
4 days
Is Dark Matter Less 'Lumpy' Than Predicted?
SPACE.COM
A new night-sky survey of distant galaxies suggests that dark matter is less "lumpy" than previously thought.
A new night-sky survey of distant galaxies suggests that dark matter is less "lumpy" than previously thought.
5 days
New 3-D Simulations Show How Galactic Centers Cool Their Jets
ASTRO WATCH
Some of the most extreme outbursts observed in the universe are the mysterious jets of energy...
Some of the most extreme outbursts observed in the universe are the mysterious jets of energy and matter beaming from the center of galaxies at nearly the speed of light. These narrow jets, which typically form in opposing pairs are...
5 days
Supernova Hunters: 'Get Them While They're Young'
ASTRO WATCH
Not many people can say they have watched a star explode before their eyes, but David Sand can. On the evening of...
Not many people can say they have watched a star explode before their eyes, but David Sand can. On the evening of March 10, the astronomer happened to be on duty to monitor results coming in from an automated survey...
5 days
Hubble Spots Highly Distorted Spiral Galaxy: IC 1727
SCI-NEWS.COM
The NASA/ESA Hubble Space Telescope has taken a picture of the dwarf spiral galaxy IC 1727. IC 1727, also known...
The NASA/ESA Hubble Space Telescope has taken a picture of the dwarf spiral galaxy IC 1727. IC 1727, also known as LEDA 6574 and UGC 1249, lies 24.3 million light-years away from us in the constellation of Triangulum. The galaxy...
5 days
New 3-D simulations show how galactic centers cool their jets
SCIENCE DAILY
Scientists have developed new theories and 3-D simulations to explain what's at work in the mysterious jets of energy and matter beaming from the center of galaxies at...
Scientists have developed new theories and 3-D simulations to explain what's at work in the mysterious jets of energy and matter beaming from the center of galaxies at nearly the speed of light.
5 days
New 3-D simulations show how galactic centers cool their jets
PHYS.ORG
Some of the most extreme outbursts observed in the universe are the mysterious jets of energy and matter beaming from the center of galaxies at nearly the speed...
Some of the most extreme outbursts observed in the universe are the mysterious jets of energy and matter beaming from the center of galaxies at nearly the speed of light. These narrow jets, which typically form in opposing pairs are...
5 days
Stars orbiting supermassive black hole show Einstein was right again
PHYS.ORG
VIDEO
At the center of our galaxy, roughly 26,000 light years from Earth, lies the supermassive black hole (SMBH) known as Sagittarius A*. Measuring 44 million km across, this...
At the center of our galaxy, roughly 26,000 light years from Earth, lies the supermassive black hole (SMBH) known as Sagittarius A*. Measuring 44 million km across, this object is roughly 4 million times as massive as our Sun and...
5 days
Hubble displays a dwarf spiral galaxy
PHYS.ORG
The subject of this NASA/ESA Hubble Space Telescope image is a dwarf galaxy named NGC 5949. Thanks to its proximity to Earth—it sits at a distance of around 44 million light-years from us, placing it within...
The subject of this NASA/ESA Hubble Space Telescope image is a dwarf galaxy named NGC 5949. Thanks to its proximity to Earth—it sits at a distance of around 44 million light-years from us, placing it within the Milky Way's cosmic...
6 days
Properties of a massive galaxy 800 million years after the Big Bang
PHYS.ORG
Searches for the most distant galaxies have now probed earlier than the first billion years in the history of the universe, early enough to...
Searches for the most distant galaxies have now probed earlier than the first billion years in the history of the universe, early enough to start seeing the primary effects of the first stars: the reionization of neutral atoms.
6 days
Is Dark Matter Less 'Lumpy' Than Predicted?
LIVE SCIENCE
A new night-sky survey of distant galaxies suggests that dark matter is less "lumpy" than previously thought.
A new night-sky survey of distant galaxies suggests that dark matter is less "lumpy" than previously thought.
6 days
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