Results 121 to 130 of about 3,834 (215)

The Detection, Characterization, and Retrieval of Terrestrial Exoplanet Atmospheres

, 2020
Thesis (Ph.D.)--University of Washington, 2020With the upcoming launch of the James Webb Space Telescope (JWST), the first light of thirty-meter class ground based telescopes in the 2020s, and plans in the works for a next-generation space-based ...
Lustig-Yaeger, Jacob
core  

A New Approach to Compiling Exoatmospheric Target Lists and Quantifying the Ground-based Resources Needed to Vet Them

The Astronomical Journal
Transiting exoplanet atmospheric characterization is currently in a golden age as dozens of exoplanet atmospheres are being studied by NASA’s Hubble and James Webb Space Telescopes.
Jennifer A. Burt, Robert T. Zellem, David R. Ciardi, Shubham Kanodia, Geoffrey Bryden, Tiffany Kataria, Kyle A. Pearson, Jessie L. Christiansen, Charles Beichman, B. J. Fulton, Mark Swain   +10 more
doaj   +1 more source

Ex(o)plain: Subgroup-Level Analysis of Exoplanet Atmospheric Parameters

IEEE Access
Deep learning has been shown to be a valuable tool in astrophysics. In the field of exoplanetary science, deep learning-based approaches are being used extensively to automate the characterization of exoplanet atmospheres, reducing computational costs ...
Alkis Koudounas, Flavio Giobergia, Elena Baralis   +2 more
doaj   +1 more source

Uniform Reanalysis of JWST MIRI 15 μm Exoplanet Eclipse Observations Using Frame-normalized Principal Component Analysis

The Astrophysical Journal Letters
James Webb Space Telescope (JWST) MIRI 15 μ m time-series eclipse photometry presents a powerful way to probe for the presence of atmospheres on low-temperature rocky exoplanets orbiting nearby stars.
Nicholas J. Connors, Christopher Monaghan, Björn Benneke, Lisa Dang   +3 more
doaj   +1 more source

JWST-TST DREAMS: Nonuniform Dayside Emission for WASP-17b from MIRI/LRS

The Astronomical Journal
We present the first spectroscopic characterization of the dayside atmosphere of WASP-17b in the mid-infrared using a single JWST MIRI/LRS eclipse observation.
Daniel Valentine, Hannah R. Wakeford, Ryan C. Challener, Natasha E. Batalha, Nikole K. Lewis, David Grant, Elijah Mullens, Lili Alderson, Jayesh Goyal, Ryan J. MacDonald, Erin M. May, Sara Seager, Kevin B. Stevenson, Jeff A. Valenti, Natalie H. Allen, Néstor Espinoza, Ana Glidden, Amélie Gressier, Jingcheng Huang, Zifan Lin, Douglas Long, Dana R. Louie, Mark Clampin, Marshall Perrin, Roeland P. van der Marel, C. Matt Mountain   +25 more
doaj   +1 more source

HST Transmission Spectra of the Hot Neptune HD 219666 b: Detection of Water and the Challenge of Constraining Both Water and Methane

The Astronomical Journal
Although Neptunian-sized (2–5 R _⊕ ) planets appear to be extremely common in the Galaxy, many mysteries remain about their overall nature. To date, only 11 Neptunian-sized planets have had their atmospheres spectroscopically characterized, and these ...
Matthew M. Murphy, Thomas G. Beatty, Luis Welbanks, Guangwei Fu   +3 more
doaj   +1 more source

Host stars and their effects on exoplanet atmospheres: an introductory overview

, 2019
Like planets in our solar system, exoplanets form, evolve, and interact with their host stars in many ways. As exoplanets acquire material and grow to the final size, their atmospheres are subjected to intense UV and X-radiation and high-energy particle ...
Linsky, Jeffrey
core   +1 more source

The Open-source Photochem Code: A General Chemical and Climate Model for Interpreting (Exo)Planet Observations

The Planetary Science Journal
With the launch of the James Webb Space Telescope, we are firmly in the era of exoplanet atmosphere characterization. Understanding exoplanet spectra requires atmospheric simulations that span the diversity of planetary atmospheres.
Nicholas F. Wogan, Natasha E. Batalha, Kevin Zahnle, Joshua Krissansen-Totton, David C. Catling, Eric T. Wolf, Tyler D. Robinson, Victoria Meadows, Giada Arney, Shawn Domagal-Goldman   +9 more
doaj   +1 more source

Observational constraints of exoplanet clouds

, 2023
We entered a new era in extrasolar planets characterisation. We are indeed given access to constraints on their meteorology. New facilities have been designed specifically for exoplanet atmospheric characterisation.
Iro, Nicolas
core  

Direct Optical Detection of Microorganisms in Exoplanet Atmospheres: Methods

, 2016
The purpose of this project is to develop an optical method for detecting the presence of life, specifically microorganisms, in the atmosphere of an exoplanet.
Eads, Ryker, Sullivan, Natalie, Murphy, Caitlin, Burton, Joseph, Doyle, Timothy   +4 more
core