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This tag is associated with 202 posts

New detections of exoplanet HD 95086 b with the Gemini Planet Imager

HD 95086 b is one of the first exoplanets directly imaged with the newly commissioned instrument Gemini Planet Imager. This is only the first in what is likely to be a long line of exciting results coming from this state of the art instrument.

Hot Jupiters and Their Effects on Host Stars

Hot Jupiters offer an interesting mechanism for affecting the rotation and magnetic activity levels of their host stars.

Arecibo Detects a Fast Radio Burst

A mysterious Fast Radio Burst (FRB) from beyond the galaxy has been detected at Arecibo. This is the first FRB discovered outside of Parkes Observatory, giving greater credence to the astronomical nature of these signals.

AGN Illustration

A New Galactic Yardstick

We can measure the expansion of the universe with velocities and distances of extragalactic objects. But measuring distances is tough! The authors of this paper have developed a new technique for measure the distances of AGN using the “echo” of light from heated dust.

A Planet for Every M Dwarf Star?

A recent result on the commonality of exoplanets has made headlines, but has it for the right reasons?

Tracking the Accretion Flow Geometry Around Black Holes

By looking at the spectral changes of the accretion disk emission around black holes, we can trace the physical changes of the accreting material.

A Fast Radio Burst From Close to Home?

Astronomers are hearing a new type of radio transient, but no one knows where they come from and how they are created. This paper suggests one of the six documented Fast Radio Bursts detected so far originated close to home, within our own galaxy.

Cloudy with a chance of Carbon Monoxide

Tune in now for the first extrasolar weather map of a nearby brown dwarf, made using Doppler imaging.

A star with a fake ID?

Most binary stars probably formed at the same time, meaning all stars in the same system should have the same age. The authors of this paper analyze a stellar binary system where one star appears to be lying about its age, as one star appears 3 billion years older than its companion.

Compact Galaxies in the Nearby Universe

Small and massive compact galaxies are some of the hardest galaxies to find, but they could potentially reveal how galaxies evolved in the early universe.

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