Articles tagged with Exoplanets
Researchers found a young, faint companion to a star, measuring its mass for the first time. The object is 93 times as massive as Jupiter, contradicting theoretical predictions.
Researchers have discovered two candidate planets orbiting white dwarfs, which are the remnants of dead stars. The team used a combination of telescopes to detect these planets, which could provide clues about the solar system's formation and the presence of life in the galaxy.
Researchers have found a young planet that is smaller than expected and orbits its parent star at the same distance as our own Neptune. The discovery was made using NASA's Spitzer Space Telescope and challenges current understanding of planetary formation, leading to a re-examination of existing theories.
Astronomers have discovered a Jupiter-sized gas giant orbiting a star located 500 light-years from Earth. The newly found world circles its star every 3.03 days at a distance of only 4 million miles, much closer and faster than Mercury in our solar system.
Scientists have discovered a distant planet using the transit technique and spectroscopy, revealing key findings about TrES-1's atmosphere and orbit. The discovery marks the first extrasolar planet found by a dedicated survey of thousands of relatively bright stars.
During next week's transit, NCAR scientist Brown will examine regions of the solar spectrum absorbed by Venus's atmosphere between 65 and 85 kilometers altitude. He will also construct wind patterns based on gases' Doppler shifts to reveal atmospheric composition and temperature.
Research by Debra Fischer and Jeff Valenti found a correlation between star metal abundance and planet formation, with metal-rich stars having a 20% chance of harboring planets. The data suggest that a threshold metallicity exists, favoring the formation of planetary systems in stars with higher initial metal content.
The UCLA Center for Astrobiology will focus on four themes: extrasolar planetary systems, habitability of planets and their satellites, Earth's early environment and life, and evolution of biological complexity. The center aims to detect planets beyond our solar system using new methods and study the factors that control habitability.
The discovery of a companion planet to Tau1 Gruis star with a relatively long-period orbit and mass similar to Jupiter sheds new light on the formation of giant planets. Researchers found that most giant planets likely form at Jupiter-like distances from their host stars.
Researchers are using computer simulations to determine if the 47 Ursae Majoris system can contain an Earth-like planet. The system's asteroid belt is in the habitable zone, increasing the likelihood of finding a terrestrial planet.
Astronomers detected sodium in the atmosphere of a gas giant exoplanet orbiting a yellow star. The team used Hubble's spectrometer to analyze light passing through the planet's atmosphere, revealing less sodium than expected, which may indicate high-altitude clouds blocking some light.
A team of astronomers has discovered a Jupiter-size planet in a nearly circular orbit around the nearby star 47 Ursae Majoris, located about 51 light years from Earth. The new planet is at least three-fourths the mass of Jupiter and orbits the star at a distance that would place it beyond Mars but within the orbit of Jupiter.
Scientists find five stars with unexplained wobbles, suggesting the presence of a second companion planet. The discovery of three new gas giants adds to the list of 41 known planets outside our solar system, revealing patterns in planetary formation and dynamics.
Detailed studies of 12 stars with Jupiter-mass planets show concentrations of heavy elements two to three times greater than in the sun. The discovery supports the theory that stars born in heavy-element-enriched clouds are more likely to harbor giant planets.
A new theoretical study reproduces actual observations of the confirmed brown dwarf Gliese 229 B, providing insights into its atmosphere and formation. The research helps accelerate searches for brown dwarfs and giant extrasolar planets, shedding light on their composition and formation processes.