Results 61 to 70 of about 13,757 (226)

Transiting Exoplanets with JWST

, 2008
The era of exoplanet characterization is upon us. For a subset of exoplanets -- the transiting planets -- physical properties can be measured, including mass, radius, and atmosphere characteristics.
A. Burrows, A. Burrows, A. Vidal-Madjar, A. Wolszczan, A.P. Showman, B.S. Gaudi, D. Charbonneau, D. Charbonneau, D. Deming, D. Deming, D. Ehrenreich, D. Ehrenreich, D. Valencia, D.J. Des Marais, G. Basri, G. Chauvin, G. Chauvin, G. Tinetti, G.G. Fazio, G.H. Rieke, H.A. Knutson, H.A. Knutson, I. Hubeny, J. Harrington, J. Harrington, J. Lederberg, J.A. Valenti, J.E. Lovelock, J.P. Gardner, J.R. Houck, L. Zeng, L.J. Richardson, M. Gillon, M. Gillon, M. Morales-Calderòn, M.R. Swain, N.B. Cowan, P. Nutzman, P.H. Hauschildt, P.R. Christensen, R. Neuhäuser, R. Silvotti, R.L. Kurucz, R.P. Butler, R.P. Butler, S. Redfield, S. Seager, S. Seager, T.M. Brown, T.M. Brown   +49 more
core   +1 more source

Observing Exoplanets with High-Dispersion Coronagraphy. II. Demonstration of an Active Single-Mode Fiber Injection Unit [PDF]

, 2017
High-dispersion coronagraphy (HDC) optimally combines high contrast imaging techniques such as adaptive optics/wavefront control plus coronagraphy to high spectral resolution spectroscopy.
Choquet, Elodie, Dekany, Richard, Delorme, Jacques-Robert, Echeverri, Daniel, Fucik, Jason, Klimovich, Nikita, Mawet, Dimitri, Mennesson, Betrand, Randolph, Michael, Ruane, Garreth, Serabyn, Eugene, Vasisht, Gautam, Wallace, James K., Wang, Ji, Xuan, Wenhao   +14 more
core   +3 more sources

Magnetic Scaling Laws for the Atmospheres of Hot Giant Exoplanets

, 2011
We present scaling laws for advection, radiation, magnetic drag and ohmic dissipation in the atmospheres of hot giant exoplanets. In the limit of weak thermal ionization, ohmic dissipation increases with the planetary equilibrium temperature (T_eq ...
Agol, Baraffe, Batygin, Batygin, Burrows, Burrows, Charbonneau, Cowan, Crossfield, Dobbs-Dixon, Fortney, Goody, Hansen, Knutson, Knutson, Kristen Menou, Laughlin, Lewis, Liu, Miller, Miller, Perna, Perna, Rauscher, Rauscher, Showman, Showman, Showman, Showman, Winn   +29 more
core   +1 more source

The Power of a Name: Toward a Unified Approach to Naming Space Weather Events

Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract Our increasing reliance on technology vulnerable to space weather effects underscores the urgent need for effective public communication about these phenomena. While scientific research thrives on precise technical language, broader public engagement necessitates a more accessible and memorable approach.
Sophie Chabanski, Felix de Montety, Jean Lilensten, Stefaan Poedts, Luca Spogli   +4 more
wiley   +1 more source

Ground-based Reconnaissance Observations of 21 Exoplanet Atmospheres with the Exoplanet Transmission Spectroscopy Imager

The Astronomical Journal
One of the most prolific methods of studying exoplanet atmospheres is transmission spectroscopy, which measures the difference between the depth of an exoplanet's transit signal at various wavelengths and attempts to correlate the depth changes to ...
Ryan J. Oelkers, Luke M. Schmidt, Erika Cook, Mary Anne Limbach, D. L. DePoy, J. L. Marshall, Jimmy Ardoin, Mitchell Barry, Evan Batteas, Alexandra Boone, Brant Conway, Silvana Delgado Adrande, John D. Dixon, Enrique Gonzalez-Vega, Alexandra Guajardo, Landon Holcomb, Christian Lambert, Shravan Menon, Divya Mishra, Jacob Purcell, Zachary Reed, Nathan Sala, Noah Siebersma, Nhu Ngoc Ton, Raenessa M. L. Walker, Z. Franklin Wang, Kaitlin Webber   +26 more
doaj   +1 more source

Evolutionary and functional relationships between plant and microbial C1 metabolism in terrestrial ecosystems

New Phytologist, Volume 248, Issue 3, Page 1132-1153, November 2025.
Summary One‐carbon (C1) metabolism, centered on the universal methyl donor S‐adenosyl methionine (SAM), plays critical roles in biosynthesis, redox regulation, and stress responses across plants and microbes. A recently proposed photosynthetic C1 pathway links SAM methyl groups directly to RuBisCO‐mediated CO2 assimilation and integrates with nitrogen ...
Kolby J. Jardine, Linnea K. Honeker, Zhaoxin Zhang, Steve Kwatcho Kengdo, Yuguo Yang, Joseph Roscioli, William J. Riley   +6 more
wiley   +1 more source

The Importance of Optical Wavelength Data on Atmospheric Retrievals of Exoplanet Transmission Spectra

The Astronomical Journal
Exoplanet transmission spectra provide rich information about the chemical composition, clouds, and temperature structure of exoplanet atmospheres. Most exoplanet transmission spectra only span infrared wavelengths (≳1 μ m), which can preclude crucial ...
Charlotte Fairman, Hannah R. Wakeford, Ryan J. MacDonald   +2 more
doaj   +1 more source

The Origin of the Feedstock Molecules for Life on the Hadean Earth

Angewandte Chemie International Edition, Volume 64, Issue 42, October 13, 2025.
The origin of life in the Hadean eon required the formation of amino acids and nucleosides among the key molecules of life. In an often postulated strongly reducing atmosphere, HCN and its derivatives are robustly formed as plausible starting molecules. But HCN does not form in a Hadean, weakly reducing atmosphere.
Nikolai Diukarev, Erik Boinowitz, Jonas Feldmann, Stefan Wiedemann, Aleksandr Mikheev, Sidney Becker, Thomas Carell   +6 more
wiley   +1 more source

Hα Absorption in Transiting Exoplanet Atmospheres [PDF]

Proceedings of the International Astronomical Union, 2013
AbstractRecent observations by Jensen et al. of Hα absorption by the upper atmosphere of HD189733b have motivated the need for a theoretical understanding of the distribution of n=2 hydrogen within hot Jupiter atmospheres. With this in mind, we model the n=2 state of atomic hydrogen in a hydrostatic atmosphere in thermal and photoionization equilibrium.
Phil Arras, Zhi-Yun Li, Duncan Christie
openaire   +5 more sources

Using Venus, Earth, and Mars to Understand Exoplanet Volatile and Climate Evolution

Journal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.
Abstract Venus, Earth, and Mars exhibit a wide range of interactions between their deep interiors, surfaces, lower and upper atmospheres, and the Sun, with commensurate variations in the nature of their atmospheres and evolution of their volatiles. By examining these worlds' characteristics and behavior, we can gain some understanding of the breadth of
Bruce M. Jakosky, Paul K. Byrne
wiley   +1 more source