Tag

Transit Timing Variations

All articles tagged with #transit timing variations

science1 month ago•6 min saved

TOI-201: A Chaotic Exoplanet System Rewrites Planet-Formation Rules

NASA’s TESS data reveal the TOI-201 planetary system, where three bodies have misaligned orbits and strong gravitational interactions that actively reshape their motion. One planet (TOI-201b) shows significant transit timing variations, and an outer ≈15 Jupiter-mass companion influences the system’s dynamics, indicating ongoing orbital reshaping rather than a settled, orderly configuration. The discovery, aided by Antarctica-based long-duration observations, provides a rare glimpse of early planetary evolution and challenges the idea that most systems form in calm, coplanar arrangements.

via The Daily Galaxy|

#exoplanets #orbital-dynamics #science

science11 months ago•5 min saved

Kepler Data Reveals Two Unusual Planets in KOI-134 System

Reanalysis of old Kepler data revealed that the KOI-134 system, previously thought to have no planets, actually hosts two planets with unusual orbital dynamics, including significant mutual inclination, resonance, and transit timing variations, making it a unique and first-of-its-kind system.

via Phys.org|

#exoplanets #kepler-data #mutual-inclination

science11 months ago•5 min saved

Scientists Discover a Super-Earth in the Habitable Zone, Boosting Search for Extraterrestrial Life

A super-Earth exoplanet named Kepler-735c, orbiting 2,472 light years away, was discovered indirectly through transit timing variations, revealing its highly elliptical orbit and partial habitability due to its changing position relative to its star. This discovery highlights the potential of TTVs to find planets on wider orbits and in habitable zones, expanding our understanding of exoplanets and the search for life.

via Space|

#exoplanet #habitable-zone #kepler-735c

science1 year ago•8 min saved

James Webb Unveils Fourth 'Super-Puff' Planet in Kepler-51 System

Researchers have discovered a fourth planet in the Kepler-51 system, known for its three ultra-low density "super-puff" planets, using NASA's James Webb Space Telescope. This unexpected finding, revealed through transit timing variations, challenges existing models and raises new questions about the formation and characteristics of these rare planets. The discovery, detailed in the Astronomical Journal, suggests the new planet, Kepler-51e, may have a mass similar to the other planets and follows a circular orbit, though its exact nature remains uncertain.

via SciTechDaily|

#exoplanet-discovery #james-webb-space-telescope #kepler-51

astronomy3 years ago•3 min saved

Newly Discovered 'Warm Jupiter' Challenges Previous Understanding of Planetary Orbits

Research led by an Indiana University astronomer challenges the belief that hot Jupiters, gas giant planets that closely orbit stars outside our solar system, rarely have any nearby companion planets. The study analyzed the full, four-year data set for hot and warm Jupiters from NASA's Kepler Mission and found that at least 12% of hot Jupiters and 70% of warm Jupiters have a nearby planetary companion orbiting their host stars. The findings provide a new framework for explaining the evolution of hot and warm Jupiters and why some have companion planets.

via Phys.org|

#astronomy #exoplanets #gas-giants