332 citations · 437 across the 18 of their papers we have counts for
18 papers
Possible Observational Survey Strategies to Maximize Exoplanet Yields: A Report from the Survey Strategies Task Group in the Exoplanet Science Yields Working Group
Natasha Latouf, Corey Spohn, Kevin Fogarty +12
We present a variety of possible observational sequences from planet detection to characterization (i.e., survey strategies) for the initial exoEarth detection and characterization…
pyEDITH: the coronagraphic exposure time calculator for the Habitable Worlds Observatory
Eleonora Alei, Miles H. Currie, Corey Spohn +7
To support the development of next-generation missions for the search and characterization of habitable planets, high-fidelity tools for astrophysical and instrumental noise simula…
Foundations for Discovery: A Coordinated Fleet Approach to NASA Astrophysics
Regina Caputo, Francesca M. Civano, Knicole D. Colón +15
This white paper presents an analysis of Astro2020 science priorities and NASA's future astrophysics mission architecture, advocating for a coordinated fleet of $1--2B missions, s…
Bayesian Analysis for Remote Biosignature Identification on exoEarths (BARBIE) IV: Analyzing CO2 Detections in the Near-IR to Determine the Long-Wavelength Cut-off for the Habitable Worlds Observatory Coronagraph
Celeste Hagee, Natasha Latouf, Avi M. Mandell +3
We present our analysis of how the detectability of carbon dioxide (CO2) on an Earth-like planet varies with respect to signal-to-noise ratio (SNR), wavelength, and molecular abund…
A New Strategy for Using Spectroscopic Phase Curves to Characterize Non-Transiting Planets
Ted M. Johnson, Avi M. Mandell
We introduce a new time-series analysis strategy for combined-light exoplanet spectroscopic phase curves called the Variable Planetary Infrared Excess (VPIE) method. VPIE can be us…
A whole-planet model of the Earth without life for terrestrial exoplanet studies
Samantha Gilbert-Janizek, Rory K. Barnes, Peter E. Driscoll +5
As the only known habitable (and inhabited) planet in the universe, Earth informs our search for life elsewhere. Future telescopes like the Habitable Worlds Observatory (HWO) will…
Determining the Detectability of H2O with Photometric Observations using Bayesian Analysis for Remote Biosignature Identification on exoEarths (BARBIE)
Natasha Latouf, Chris Stark, Avi Mandell +1
We examine the detectability of water (H2O) in the reflected-light spectrum of an Earth-like exoplanet assuming a photometric observational approach rather than spectroscopic. By q…
JWST-TST DREAMS: The Nightside Emission and Chemistry of WASP-17b
Jacob Lustig-Yaeger, Kristin S. Sotzen, Kevin B. Stevenson +24
Theoretical studies have suggested using planetary infrared excess (PIE) to detect and characterize the thermal emission of transiting and non-transiting exoplanets, however the PI…
A comprehensive spectroscopic reference of the solar system and its application to exoplanet direct imaging
Allison Payne, Geronimo L. Villanueva, Vincent Kofman +5
We present a calibrated database of reflectance spectra for the solar system planets (i.e., Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune) and for Titan, spanning f…
The climates and thermal emission spectra of prime nearby temperate rocky exoplanet targets
Tobi Hammond, Thaddeus D. Komacek, Ravi K. Kopparapu +9
Over the course of the past decade, advances in the radial velocity and transit techniques have enabled the detection of rocky exoplanets in the habitable zones of nearby stars. Fu…
Bayesian Analysis for Remote Biosignature Identification on exoEarths (BARBIE) \RNum{3}: Introducing the KEN
Natasha Latouf, Michael D. Himes, Avi M. Mandell +4
We deploy a newly-generated set of geometric albedo spectral grids to examine the detectability of methane (CH4) in the reflected-light spectrum of an Earth-like exoplanet at visib…
The pale blue dot: using the Planetary Spectrum Generator to simulate signals from hyper realistic exo-Earths
Vincent Kofman, Geronimo Villanueva, Thomas Fauchez +5
The atmospheres and surfaces of planets show tremendous amount of spatial variation, which has a direct effect on the spectrum of the object, even if this may not be spatially reso…
The VSPEC Collection: A suite of utilities to model spectroscopic phase curves of 3D exoplanet atmospheres in the presence of stellar variability
Ted M Johnson, Cameron Kelahan, Avi M. Mandell +5
We present the Variable Star PhasE Curve (VSPEC) Collection, a set of Python packages for simulating combined-light spectroscopic observations of 3-dimensional exoplanet atmosphere…
Paths to Robust Exoplanet Science Yield Margin for the Habitable Worlds Observatory
Christopher C. Stark, Bertrand Mennesson, Steve Bryson +11
The Habitable Worlds Observatory (HWO) will seek to detect and characterize potentially Earth-like planets around other stars. To ensure that the mission achieves the Astro2020 Dec…
Optimized Bandpasses for the Habitable Worlds Observatory's ExoEarth Survey
Christopher C. Stark, Natasha Latouf, Avi M. Mandell +1
A primary scientific goal of the future Habitable Worlds Observatory will be the direct detection and characterization of Earth-like planets. Estimates of the exoplanet yields for…
Bayesian Analysis for Remote Biosignature Identification on exoEarths (BARBIE) II: Using Grid-Based Nested Sampling in Coronagraphy Observation Simulations for O2 and O3
Natasha Latouf, Avi Mandell, Geronimo Villanueva +8
We present the results for the detectability of the O2 and O3 molecular species in the atmosphere of an Earth-like planet using reflected light at the visible wavelengths. By quant…
No evidence of phosphine in the atmosphere of Venus by independent analyses
Geronimo Villanueva, Martin Cordiner, Patrick Irwin +24
The detection of phosphine (PH3) in the atmosphere of Venus has been recently reported based on millimeter-wave radio observations (Greaves et al. 2020), and its re-analyses (Greav…
Planetary Spectrum Generator: an accurate online radiative transfer suite for atmospheres, comets, small bodies and exoplanets
Geronimo L. Villanueva, Michael D. Smith, Silvia Protopapa +2
We have developed an online radiative-transfer suite (https://psg.gsfc.nasa.gov) applicable to a broad range of planetary objects (e.g., planets, moons, comets, asteroids, TNOs, KB…