hot jupiter tagged posts

Atmospheric gases recede from a “hot Jupiter,” which is a Jupiter-size, egg-shaped planet that orbits close to its own sun, in this artistic rendering. Cornell astronomers have developed a new mathematical model for determining temperatures on different parts of exoplanets, rather than averaging a planet’s temperature. Matthew Fondeur/Cornell University

After spotting a curious pattern in scientific papers – they described exoplanets as being cooler than expected – Cornell University astronomers have improved a mathematical model to accurately gauge the temperatures of planets from solar systems hundreds of light-years away.

This new model allows scientists to gather data on an exoplanet’s molecular chemistry and gain insight on the cosmos’ planetary beginnings, according to research...

How can a planet be “hotter than hot?” The answer is when heavy metals are detected escaping from the planet’s atmosphere, instead of condensing into clouds.

Observations by NASA’s Hubble Space Telescope reveal magnesium and iron gas streaming from the strange world outside our solar system known as WASP-121b...

Artist’s impression of a “hot Jupiter”. Credit: Ricardo Cardoso Reis (CAUP)

Astronomers have detected “hot Jupiter” exoplanets transiting two distant stars. The newly found alien worlds, designated EPIC 229426032 b and EPIC 246067459 b, appear to be larger than it should be according to theoretical models. The finding is reported January 24 in a paper published on arXiv.org. The so-called inflated planets are those that expand in size when their parent stars are at the end of their lives. They have been known to astronomers for almost two decades, but it is still unclear what causes the inflation processes...

This is an artist’s impression of the cool red star above NGTS-1b. Credit: University of Warwick/Mark Garlick

A giant planet, which should not exist according to planet formation theory, has been discovered around a distant star. The existence of the ‘monster’ planet, ‘NGTS-1b’, challenges theories of planet formation which state that a planet of this size could not be formed around such a small star. According to these theories, small stars can readily form rocky planets but do not gather enough material together to form Jupiter-sized planets.

‘NGTS-1b’ however, is a ‘gas giant’ – due to its size and temperature, the planet is known as a ‘hot Jupiter’, a class of planets that are at least as large as our solar system’s very own Jupiter, but with around 20% less mass...