Results 11 to 20 of about 8,946 (200)

Constraining Exoplanet Mass from Transmission Spectroscopy [PDF]

Science, 2013
Determination of an exoplanet's mass is a key to understanding its basic properties, including its potential for supporting life. To date, mass constraints for exoplanets are predominantly based on radial velocity (RV) measurements, which are not suited ...
de Wit, Julien, Seager, Sara
core   +3 more sources

Spectral Retrieval with JWST Photometric data: a Case Study for HIP 65426 b

The Astronomical Journal, 2023
Half of the JWST high-contrast imaging objects will only have photometric data as of Cycle 2. However, to better understand their atmospheric chemistry that informs formation origin, spectroscopic data are preferred.
Ji Wang
doaj   +1 more source

Theoretical Spectra of Terrestrial Exoplanet Surfaces [PDF]

, 2012
We investigate spectra of airless rocky exoplanets with a theoretical framework that self-consistently treats reflection and thermal emission. We find that a silicate surface on an exoplanet is spectroscopically detectable via prominent Si-O features in ...
Batalha, Best, Bethany L. Ehlmann, Borucki, Borucki, Cheek, Clark, Clark, Cochran, Cowan, de Pater, Drilling, Farmer, Gautier, Koch, Miller-Ricci, Muirhead, Pieters, Pieters, RELAB Spectral Database, Renyu Hu, Rogers, Salisbury, Sara Seager, Seager, Seager, Sobolev, Sprague, Winn   +28 more
core   +2 more sources

A better characterization of the chemical composition of exoplanets atmospheres with ARIEL [PDF]

Experimental Astronomy, 2018
Since the discovery of the first extrasolar planet more than twenty years ago, we have discovered nearly four thousand planets orbiting stars other than the Sun. Current observational instruments (on board the Hubble Space Telescope, Spitzer, and on ground-based facilities) have allowed the scientific community to obtain important information on the ...
Venot, Olivia, Drummond, Benjamin, Miguel, Yamila, Waldmann, Ingo, Pascale, Enzo, Zingales, Tiziano   +5 more
openaire   +5 more sources

NIMBUS: The Near-Infrared Multi-Band Ultraprecise Spectroimager for SOFIA [PDF]

, 2012
We present a new and innovative near-infrared multi-band ultraprecise spectroimager (NIMBUS) for SOFIA. This design is capable of characterizing a large sample of extrasolar planet atmospheres by measuring elemental and molecular abundances during ...
Amatucci, Edward, Blake, Cullen, Budinoff, Jason, Burgasser, Adam, Burrows, Adam, Clampin, Mark, Conroy, Charlie, Deming, L. Drake, Dunham, Edward, Foltz, Roger, Gong, Qian, Knutson, Heather, Madhusudhan, Nikku, Mandell, Avi, McElwain, Michael W., Muench, Theodore, Murray-Clay, Ruth, Peabody, Hume, Rauscher, Bernard, Rinehart, Stephen A., Spiegel, David S., Villanueva, Geronimo, Woodgate, Bruce   +22 more
core   +3 more sources

Exoplanet albedo spectra and colors as a function of planet phase, separation, and metallicity [PDF]

, 2010
First generation optical coronagraphic telescopes will obtain images of cool gas and ice giant exoplanets around nearby stars. The albedo spectra of exoplanets at planet-star separations larger than about 1 AU are dominated by reflected light to beyond 1
Ackerman, Alibert, Beichman, Boss, Brown, Burrows, Burrows, Burrows, Chapman, Chapman, Conrath, Dlugach, Dodson-Robinson, Dyudina, Fortney, Fortney, Fortney, Fortney, Fortney, Fortney, Freedman, Gautier, Gautier, Guillot, Guillot, Guyon, Ida, Jonathan J. Fortney, Kasdin, Kerri L. Cahoy, Kratter, Kuchner, Lafreniere, Liou, Lodders, Lodders, Lodders, Mark S. Marley, Marley, Marley, Marley, Marley, Marois, Mawet, Mihilas, Rauscher, Saumon, Saumon, Seager, Sobolev, Spiegel, Stephens, Sudarsky, Sudarsky, Sudarsky, Traub, Veras, West, Zahnle   +58 more
core   +2 more sources

A Radiative-convective Model for Terrestrial Planets with Self-consistent Patchy Clouds

The Planetary Science Journal, 2023
Clouds are ubiquitous: they arise for every solar system planet that possesses an atmosphere and have also been suggested as a leading mechanism for obscuring spectral features in exoplanet observations.
James D. Windsor, Tyler D. Robinson, Ravi kumar Kopparapu, Amber V. Young, David E. Trilling, Joe LLama   +5 more
doaj   +1 more source

An Unusual Transmission Spectrum for the Sub-Saturn KELT-11b Suggestive of a Sub-Solar Water Abundance

, 2020
We present an optical-to-infrared transmission spectrum of the inflated sub-Saturn KELT-11b measured with the Transiting Exoplanet Survey Satellite (TESS), the Hubble Space Telescope (HST) Wide Field Camera 3 G141 spectroscopic grism, and the Spitzer ...
Ahlers, John P., Angerhausen, Daniel, Awiphan, Supachai, Barclay, Thomas, Beatty, Thomas, Chotani, Heena, Colón, Knicole D., Cox, Leafia Sheraden, Fortney, Jonathan J., Gilbert, Emily A., James, David J., Kotnik, Cliff, Kreidberg, Laura, LeBrun, Danny, Line, Michael R., Lopez, Eric D., Madhusudhan, Nikku, Mandell, Avi, Matzko, William, McLeod, Kim K., Murawski, Gabriel, Pepper, Joshua, Plavchan, Peter, Rea, David, Rodriguez, Joseph E., Stassun, Keivan G., Stevenson, Kevin B., Tamburo, Patrick, Tan, Nicole, Vidaurri, Monica, Webster, Scott, Welbanks, Luis, Williams, James K.   +32 more
core   +1 more source

Aggregate Hazes in Exoplanet Atmospheres [PDF]

, 2019
Photochemical hazes have been frequently used to interpret exoplanet transmission spectra that show an upward slope towards shorter wavelengths and weak molecular features.
Adams, Danica, de Pater, Imke, Gao, Peter, Morley, Caroline   +3 more
core   +3 more sources

3D modelling of the impact of stellar activity on tidally locked terrestrial exoplanets: atmospheric composition and habitability

Monthly Notices of the Royal Astronomical Society, 2022
ABSTRACT Stellar flares present challenges to the potential habitability of terrestrial planets orbiting M dwarf stars through inducing changes in the atmospheric composition and irradiating the planet’s surface in large amounts of ultraviolet light.
R J Ridgway, M Zamyatina, N J Mayne, J Manners, F H Lambert, M Braam, B Drummond, E Hébrard, P I Palmer, K Kohary   +9 more
openaire   +5 more sources