Having lost the original Atmosphere, this freaky planet is now becoming a new one

Artist's impression of exoplanet GJ 1132 b,

Artist’s impression of exoplanet GJ 1132 b,
Image: NASA / ESA / R. Hurt (IPAC / Caltech)

Who’s to say you can’t lose your feeling to a nearby red dwarf and then grow a new one with the help of volcanic activity? T.a strength planet, located 41 light-years from Earth, seemingly thriving again after a rough encounter with his host star.

Exoplanet GJ 1132 b are both similar and very different from Earth. Yes, it is several times wider than our planet, but both worlds dividing equal densities and atmospheric pressures, and both of them came into being about 4.5 billion years ago. And like our planet, it started hot, with a hydrogen-filled feel, and then gradually cool down.

The reserves of these two planets are quite different, however.

Although the Earth was always an earthy, rocky world, GJ 1132 began its life as a gas, Neptune-like planet. But as new research shows, a nearby red dwarf destroyed the original atmosphere full of hydrogen and helium with powerful radiation, so GJ 1132 b, after it was taken down to its rocky heart, now technically a terrestrial planet. The new paper will appear in a forthcoming issue of the Astronomical Journal, but a introduction available at the arXiv.

The authors of the paper came to these conclusions based on direct observations of the exoplanet and theoretical modeling. The telescope of choice was the Hubble Space Telescope, which allowed the team to see the “secondary atmosphere,” which contains molecular hydrogen, hydrogen cyanide, methane, and mog-like aerosol fumes.

“It’s really interesting because we think the feeling we see now has been renewed, so it could be a secondary atmosphere,” said Raissa Estrela, co-author the study and planetary scientist at NASA’s Jet Propulsion Laboratory in Southern California, described in a recitation. “At first we thought these high-resolution planets could be very depressing because we believed they had lost their senses. But we looked at the preconceived notions of this planet with Hubble and said, ‘Oh no, there’s a feeling. ‘”

By definition, the authors state that much of the planet’s normal hydrogen has been retained from before, having been absorbed into the molten magma molecule. Volcanic processes are now causing this stored hydrogen to leak from below, refueling the fresh air, according to the research.

“This process works early in the life of a planet, when the star is warmer,” said JPL scientist Mark Swain. lead author of the study, in a NASA message. “Then the star cools and the planet is just sitting there. So you have this equipment where you can cook the feeling in the first 100 million years, and then things will settle. And if you can renew the feeling, you may be able to keep it. “

GJ 1132 b, which takes just 1.5 days to make one complete orbit of the hungry host star, appears to be prone to tidal warming, in which gravitational forces mash the planet from the inside. The exoplanet, despite its short age, is in an elliptical orbit, leading to an effect known as “gravity pumping.” As GJ 1132 moves back and forth, it alternates between squashing and stretching tasks, producing an engine that drives the tidal forces. and, then, costume melting.

The surface of this exoplanet may not be very thick, perhaps just a few hundred feet deep, according to the authors. The ground seems very flat, with cracks caused by tidal pumping actions, from which the hydrogen gradually releases.

The new study influences the study of similar worlds located elsewhere in the constellation.

“Discovering the sensations of this rocky planet opens up the possibility that the mightily irradiated super-Earth planets, believed to be sub-Neptunes’ active galaxies, can hosting visible emotions, ”the authors write in the study.

The big question now is, how often does this happen? Is this just a freak event? Sin the upcoming James Webb space telescope could answer, which, with its infrared capabilities, should be able to see planets like this easily. In addition, JWST could also be used to study GJ 1132 b and provide new data to confirm these results.

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