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Stars and solar physics

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Plasma bursts from young stars could shed light on the early life of the Sun

New multi-temperature coronal mass ejection observations might help us better understand how life emerged and evolved on Earth

Young rogue planet grows like a star

Telescope observations reveal material accreting onto the planet Cha1107-7626 in a way that resembles the infancy of stars

Artist's impression of a rogue planet surrounded by a disk of gas and dust. The planet and its surrounding dust glow red-orange against the blackness of space

Laser-driven implosion could produce megatesla magnetic fields

Simulations of improved technique generate fields as strong as those found near neutron stars

Conceptual illustration of bladed microtube implosion, showing how sawtooth-like blades inside the cylindrical target drive strong loop currents (shown as a pinkish swirl) and generate strong magnetic fields (shown as bright yellow loops around the target)

Too-close exoplanet triggers flares from host star

New observations are the first direct evidence of planets influencing their stars rather than just passively orbiting them

Infographic entitled "Clingy planets can trigger their own doom". It shows a planet passing close to its host star and perturbing the star's magnetic field, triggering a flare that blasts away the planet's wispy atmosphere and causing it to shrink over time

Astronomers observe the biggest booms since the Big Bang

"Extreme nuclear transients" from tidally disrupted heavy stars release more energy than 100 supernovae

A bright image of two circular objects, one in a blue colour and the other in an orange colour. A thin trail of material leads from the blue object (the star) to the orange object (the black hole that's accreting the material)

Short-lived eclipsing binary pulsar spotted in Milky Way

Rare sighting could allow astronomers to test theories of binary star systems

Two stars orbiting each other in the night sky

New analysis of M67 cluster helps decode the sound of stars

Acoustic oscillations in M67 stars reveal a surprising plateau in frequency patterns, providing a new tool to probe stellar interiors and refine age estimates

Artistic impression of acoustic waves in a star

Helium nanobubble measurements shed light on origins of heavy elements in the universe

Particle-accelerator study focuses on the r-process thought to be responsible for forming elements heavier than iron

Photo of the set-up in the ISAC-II experimental hall at TRIUMF. The room resembles a high-ceilinged warehouse with metal supports and high windows in the background. In the foreground is an experimental apparatus supported by a yellow metal frame.

AI speeds up detection of neutron star mergers

New approach could aid “multimessenger” astronomy by quickly locating sources of gravitational waves emitted during these cosmic events

Artist's impression of the gravitational wave and electromagnetic radiation signals from a distant binary neutron star merger arriving at Earth. The image shows the Earth floating in space with a telescope hovering above it in the bottom left corner, while in the top right corner a pair of bright spots are emitting ghostly blue waves

Fast radio burst came from a neutron star’s magnetosphere, say astronomers

Scintillation measurements show that FRB 20221022A originated from the highly magnetized region around a neutron star, challenging existing models of conditions there

Kenzie Nimmo presenting this work at a recent conference. She's standing beneath a large screen that says "Using scintillation to identify the magnetospheric origin of FRB 20221022A", holding a microphone.

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