Extrasolar Planets
Circumbinary Exoplanets And Brown Dwarfs With LISA 
We explore here the prospects for detection of both giant circumbinary exoplanets, and brown dwarfs orbiting Galactic double white dwarfs binaries (DWDs) with the LISA mission.
Wavefront Error Tolerancing For Direct Imaging Of Exo-Earths With A Large Segmented Telescope In Space
Direct imaging of exo-Earths and search for life is one of the most exciting and challenging objectives for future space observatories.
A Virtual Planet Simulator for Modeling Distant Worlds Across Time
University of Washington astrobiologist Rory Barnes has created software that simulates multiple aspects of planetary evolution across billions of years, with an eye toward finding and studying potentially habitable worlds.
Energy Budgets for Terrestrial Extrasolar Planets
The pathways through which incoming energy is distributed between the surface and atmosphere has been analyzed for the Earth. However, the effect of the spectral energy distribution of a host star on the energy budget of an orbiting planet may be significant given the wavelength-dependent absorption properties of atmospheric CO2 and water vapor, and surface ice and snow.
An Automated Method to Detect Transiting Circumbinary Planets
To date a dozen transiting "Tatooines" or circumbinary planets (CBPs) have been discovered, by eye, in the data from the Kepler mission; by contrast, thousands of confirmed circumstellar planets orbiting around single stars have been detected using automated algorithms.
How Many Earth-like Planets Are Around Sun-like Stars?
A new study provides the most accurate estimate of the frequency that planets that are similar to Earth in size and in distance from their host star occur around stars similar to our Sun.
Red Dots: A Temperate 1.5 Earth-mass Planet In A Compact Multi-terrestrial Planet System Around GJ1061
Small low-mass stars are favourable targets for the detection of rocky habitable planets. In particular, planetary systems in the solar neighbourhood are interesting and suitable for precise characterisation. The Red Dots campaigns seek to discover rocky planets orbiting nearby low-mass stars.
Identifying Atmospheres on Rocky Exoplanets Through Inferred High Albedo
The upcoming launch of the James Webb Space Telescope (JWST) means that we will soon have the capability to characterize the atmospheres of rocky exoplanets.
A Scaling Theory for Atmospheric Heat Redistribution on Rocky Exoplanets
Atmospheric heat redistribution shapes the remote appearance of rocky exoplanets but there is currently no easy way to predict a planet's heat redistribution from its physical properties.
Two Earth-like Planets Discovered Near Teegarden's Star
An international research team led by the University of Göttingen has discovered two new Earth-like planets near one of our closest neighboring stars.
Frequency of Planets Orbiting M dwarfs in the Solar Neighbourhood
The most abundant stars in the Galaxy, M dwarfs, are very commonly hosts to diverse systems of low-mass planets. Their abundancy implies that the general occurrence rate of planets is dominated by their occurrence rate around such M dwarfs.
Signatures of a Planet-planet Impacts Phase in Exoplanetary Systems Hosting Giant Planets
Exoplanetary systems host giant planets on substantially non-circular, close-in orbits.
Exomoons May Be Home To Extraterrestrial Life
Moons orbiting planets outside our solar system could offer another clue about the pool of worlds that may be home to extra-terrestrial life, according to an astrophysicist at the University of Lincoln.
Characterization of the L 98-59 multi-planetary System with HARPS
L 98-59 (TIC 307210830, TOI-175) is a nearby M3 dwarf around which TESS revealed three terrestrial-sized transiting planets (0.80, 1.35, 1.57 Earth radii) in a compact configuration with orbital periods shorter than 7.5 days.
Discovery and Characterization of Kepler-36b
We describe the circumstances that led to the discovery of Kepler-36b, and the subsequent characterization of its host planetary system.
Validation of a Temperate Fourth Planet in the K2-133 Multi-planet System
We present follow-up observations of the K2-133 multi-planet system. Previously, we announced that K2-133 contained three super-Earths orbiting an M1.5V host star - with tentative evidence of a fourth outer-planet orbiting at the edge of the temperate zone.
How to Find a Planet from Transit Variations
Here we describe a story behind the discovery of Kepler-46, which was the first exoplanetary system detected and characterized from a method known as the transit timing variations (TTVs).
Unexpectedly Strong Effect of Supergranulation on the Detectability of Earth Twins Orbiting Sun-like Stars With Radial Velocities
Magnetic activity and surface flows at different scales pertub radial velocity measurements.
Life Could Be Evolving Right Now on Nearest Exoplanets
Rocky, Earth-like planets orbiting our closest stars could host life, according to a new study that raises the excitement about exoplanets.
Exoplanetary Atmospheres: Key Insights, Challenges and Prospects
Exoplanetary science is on the verge of an unprecedented revolution. The thousands of exoplanets discovered over the past decade have most recently been supplemented by discoveries of potentially habitable planets around nearby low-mass stars.
Top stories from October.
Calendar
- 18 Oct: Mars on the National Mall
- 18 Oct: STA mtg w Astronaut Noguchi, JAXA
- 18 Oct: NASA Advisory Council Science Committee;Meeting
- 21 Oct: 70th International Astronautical Congress
- 21 Oct: NASA Hubble Fellowship Program Symposium
- 21 Oct: National Space Council Users' Advisory Group Meeting
- 21 Oct: CCSDS Fall 2019 meeting series
- 28 Oct:
- 28 Oct: Lunar Exploration Analysis Group
- 29 Oct: NASA Advisory Council;Technology, Innovation and Engineering Committee Meeting
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