Exploring Common Envelope Outcomes of Binary Stellar Evolution
Binary neutron stars have been detected in the Milky Way as millisecond pulsars and twice outside the galaxy via gravitational-wave emission. Most of them have…
OzGrav
Bayesian Inference for Gravitational Waves From Binary Neutron Star Mergers in 3G Observatories
In the 2030’s, gravitational-wave detectors will be thousands of times more sensitive than Advanced LIGO, Virgo, and KAGRA. The network of “third generation” (3G) observatories…
Probing Mysterious “Afterglow” X-Ray Remnants From Extreme Cosmic Bursts of Light
Short gamma-ray bursts are extremely bright bursts of high-energy light that last for a couple of seconds. In many of these bursts, there is a…
Pulsar Timing Array Explores Mystery Gravitational Waves From Supermassive Black Holes
Galaxies host supermassive black holes, which weigh millions to billions of times more than our Sun. When galaxies collide, pairs of supermassive black holes at…
An Interactive Science Exhibit Based on a Real-Life Gravitational-Wave Detector
Making Waves at the Museum Exhuibit modeled after a real-life gravitational-wave detector to explain gravitational-wave science. It was developed by an international team, which includes…
Supernova Explosions in Dense Active Galactic Nuclear Discs
‘Type Ia’ supernovae involve an exploding white dwarf close to its Chandrasekhar mass. For this reason, type Ia supernova explosions have almost universal properties and…
Optical Observations of BepiColombo Spacecraft as a Proxy for a Potential Threatening Asteroid
BepiColombo is a joint mission between the European Space Agency (ESA) and the Japan Aerospace Exploration Agency (JAXA) designed to study the planet Mercury. Launched…
Gamma-Ray Bursts – Bright Cosmic Explosions – Could Reveal Strange Interstellar “Knots”
Gamma-ray bursts are enormous cosmic explosions and are one of the brightest and most energetic events in the Universe. Their brightness changes over time, illuminating…
Blistering Stars in the Universe: Rare Insights Into How Violent Supernova Explosions Affect Nearby Stars
What happens if a supernova explosion goes off right beside another star? The star swells up, which scientists predict as a frequent occurrence in the…
Spinning Neutron Stars Reveal New Insights Into Elusive Continuous Gravitational Waves
Five years on from the first discovery of gravitational waves, an international team of scientists, including from the ARC Centre of Excellence for Gravitational Wave…
Deciphering the Lives of Double Neutron Stars Using the Ripples in the Fabric of Space and Time
Scientists from the ARC Centre of Excellence for Gravitational Wave Discovery (OzGrav) have described a way to determine the birth population of double neutron stars…
Deep Space Listening: 6000 Days of Research to Hear Continuous Gravitational Waves
Remember the days before working from home? It’s Monday morning, you’re running late to beat the traffic, and you can’t find your car keys. What…
Gravitational-Wave Scientists Brilliant New Method to Refine the Hubble Constant – The Expansion and Age of the Universe
A team of international scientists, led by the Galician Institute of High Energy Physics (IGFAE) and the ARC Centre of Excellence for Gravitational Wave Discovery…
Testing Einstein’s Theory of General Relativity From the Shadows and Collisions of Black Holes
General relativity, Einstein’s theory of gravity, is best tested at its most extreme — close to the event horizon of a black hole. This regime…
Simulating the Complicated History of Eta Carinae – Extraordinary Star Has Fascinated Mankind for Decades
‘Eta Carinae’ is an extraordinary star that has fascinated mankind for decades. It’s surrounded by an expanding ‘Homunculus nebula’, shaped like an hourglass. This nebula…
Student Astronomer Uses Ingenious Method to Find Galactic Missing Matter
Distant galaxies used as ‘locator pins’ to detect ‘invisible’ gas cloud. Half of the universe’s matter is ‘missing,’ but PhD student Yuanming Wang has developed…
Bizarre, Never-Seen-Before Activity Spotted From One of the Strongest Magnets in the Universe
Astronomers from the ARC Centre of Excellence for Gravitational Wave Discovery (OzGrav) and CSIRO have just observed bizarre, never-seen-before behavior from a ‘radio-loud’ magnetar—a rare…
Massive Stellar Triples Leading to Sequential Binary Black-Hole Mergers
The merger of two black holes in a binary system emits energy that can be detected on Earth by gravitational-wave observatories. The LIGO Scientific Collaboration…