Discovery of white dwarf pulsar sheds light on star evolution
The discovery of a rare type of white dwarf star system provides new understanding into stellar evolution.
Astronomy
Jun 15, 2023
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94
News tagged with red dwarf
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planets
The case of the missing Jupiters: Gas giant planets are a no-show around small red stars
Astronomers have revealed that the smallest and most common kinds of stars in the universe, called red dwarfs, very rarely host big, Jupiter-like planets. This absence of Jupiter analogs could have major impacts on the development ...
Planetary Sciences
Jun 1, 2023
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367
Webb finds water vapor, but is it from a rocky planet or its star?
GJ 486 b is about 30% larger than the Earth and three times as massive, which means it is a rocky world with stronger gravity than Earth. It orbits a red dwarf star in just under 1.5 Earth days. It is too close to its star ...
Planetary Sciences
May 1, 2023
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93
TESS discovers a Venus-sized exoplanet orbiting nearby star
Using NASA's Transiting Exoplanet Survey Satellite (TESS), a team of astronomers from Harvard-Smithsonian Center for Astrophysics (CfA) in Cambridge, Massachusetts, and elsewhere has detected a new exoplanet. The newfound ...
Webb measures temperature of rocky exoplanet for first time
The James Webb Space Telescope has measured the temperature of a rocky exoplanet for the first time, finding that a "cousin" of Earth most likely lacks an atmosphere, researchers said Monday.
Planetary Sciences
Apr 2, 2023
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92
Scientists have new tool to estimate how much water might be hidden beneath a planet's surface
In the search for life elsewhere in the universe, scientists have traditionally looked for planets with liquid water at their surface. But, rather than flowing as oceans and rivers, much of a planet's water can be locked ...
Astronomy
Mar 15, 2023
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343
Even the calmest red dwarfs are wilder than the sun, reveals paper
There's something menacing about red dwarfs. Human eyes are accustomed to our benevolent yellow sun and the warm light it shines on our glorious, life-covered planet. But red dwarfs can seem moody, ill-tempered, and even ...
Astronomy
Mar 15, 2023
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96
Stellar initial mass function varies with metallicity and age of stars, say astronomers
In the vast and diverse universe, the initial mass distribution at the birth of a new population of stars determines the fate of galaxies. This relationship is described by the initial mass function (IMF). For more than half ...
Astronomy
Jan 18, 2023
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63
New Webb image reveals dusty disk like never seen before
NASA's James Webb Space Telescope has imaged the inner workings of a dusty disk surrounding a nearby red dwarf star. These observations represent the first time the previously known disk has been imaged at these infrared ...
Astronomy
Jan 11, 2023
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480
Observers explore the eclipsing polar BS Tri
Russian astronomers have performed spectroscopic and photometric observations of a peculiar eclipsing polar known as BS Tri. Result of this observational campaign, presented in a paper published December 23 on arXiv.org, ...
