Results 121 to 130 of about 15,442 (228)

EUCLID : Dark Universe Probe and Microlensing planet Hunter

, 2010
There is a remarkable synergy between requirements for Dark Energy probes by cosmic shear measurements and planet hunting by microlensing. Employing weak and strong gravitational lensing to trace and detect the distribution of matter on cosmic and ...
Batista, V, Beaulieu, J P, Bennett, D P, Cassan, A, Dong, S, Fouqué, P, Gaudi, B S, Gelino, Dawn M, Gould, A, Kerins, Eamonn, Kerrins, E, Kubas, D, Mao, S, Miralda-Escudé, J, Ribas, Ignasi, Wambsganss, J   +15 more
core  

Helium Depletion in Escaping Atmospheres of Sub-Neptunes: A Signature of Primary-to-secondary Transition

The Astrophysical Journal
Short-period sub-Neptunes are common in extrasolar systems. These sub-Neptunes are generally thought to have primary atmospheres of protoplanetary-disk gas origin.
Issei Kobayashi, Hiroyuki Kurokawa, Laura Schaefer, Satoshi Okuzumi   +3 more
doaj   +1 more source

A Metal-poor Atmosphere with a Hot Interior for a Young Sub-Neptune Progenitor: JWST/NIRSpec Transmission Spectrum of V1298 Tau b

The Astronomical Journal
We present the JWST/NIRSpec G395H transmission spectrum of the young (10–30 Myr) transiting planet V1298 Tau b (9.85 ± 0.35 R _⊕ , T _eq  = 670 K). Combined Hubble Space Telescope and JWST observations reveal a haze-free, H/He-dominated atmosphere with a
Saugata Barat, Jean-Michel Désert, Sagnick Mukherjee, Jayesh M. Goyal, Qiao Xue, Yui Kawashima, Allona Vazan, William Misener, Hilke E. Schlichting, Jonathan J. Fortney, Jacob L. Bean, Swaroop Avarsekar, Gregory W. Henry, Robin Baeyens, Michael R. Line, John H. Livingston, Trevor David, Erik A. Petigura, James T. Sikora, Hinna Shivkumar, Adina D. Feinstein, Antonija Oklopčić   +21 more
doaj   +1 more source

The Structure of Jupiter, Saturn, and Exoplanets: Key Questions for High-Pressure Experiments [PDF]

, 2006
Jonathan J. Fortney
openalex   +1 more source

Impact of photochemical hazes on the thermal structure of exoplanet atmospheres

, 2020
P. Lavvas, Anthony Arfaux
openalex   +1 more source

Effects of a fully 3D atmospheric structure on exoplanet transmission spectra: retrieval biases due to day–night temperature gradients [PDF]

, 2019
A. Caldas, J. Leconte, F. Selsis, I. P. Waldmann, P. Bordé, M. Rocchetto, B. Charnay   +6 more
openalex   +1 more source

Next-Generation Improvements in Giant Exoplanet Evolutionary and Structural Models

20 pages, 11 figures, submitted to ...
Sur, Ankan, Arevalo, Roberto Tejada, Burrows, Adam, Chen, Yi-Xian   +3 more
openaire   +2 more sources

Stellar Spectroscopy during Exoplanet Transits: Dissecting fine structure across stellar surfaces

, 2014
Differential spectroscopy during exoplanet transits permits to reconstruct spectra of small stellar surface portions that successively become hidden behind the planet. The center-to-limb behavior of stellar line shapes, asymmetries and wavelength shifts will enable detailed tests of 3-dimensional hydrodynamic models of stellar atmospheres, such that ...
Dravins, Dainis, Ludwig, Hans-Günter, Dahlén, Erik, Pazira, Hiva   +3 more
openaire   +2 more sources

The Uncertainty in Water Mass Fraction of Wet Planets

The Astrophysical Journal
Planets with masses between Earth and Neptune often have radii that imply the presence of volatiles, suggesting that water may be abundant in their interiors.
Michael Lozovsky
doaj   +1 more source

Surface Imaging of Proxima b and Other Exoplanets: Topography, Biosignatures, and Artificial Mega-Structures [PDF]

, 2017
S. V. Berdyugina, J. R. Kuhn
openalex   +1 more source