Results 41 to 50 of about 17,269 (209)

The multiplicity of exoplanet host stars - New low-mass stellar companions of the exoplanet host stars HD125612 and HD212301

, 2008
Aims: We present new results from our ongoing multiplicity study of exoplanet host stars, carried out with SofI/NTT. We provide the most recent list of confirmed binary and triple star systems that harbor exoplanets.
Bakos, Bakos, Baraffe, Bonavita, Chauvin, Chauvin, Cushing, Desidera, Eggenberger, Eggenberger, Fischer, Holman, Holmberg, Lagrange, Liu, Lo Curto, Luhman, Luhman, M. Mugrauer, Mayor, Monet, Mugrauer, Mugrauer, Mugrauer, Mugrauer, Mugrauer, Mugrauer, Mugrauer, Mugrauer, Neuhäuser, Patience, Pickles, R. Neuhäuser, Raghavan, Reid, Skrutskie, Tamuz   +36 more
core   +1 more source

Observational Constraints on the Formation and Evolution of Neptune-Class Exoplanets [PDF]

Space Science Reviews, 2020
21 pages, 6 ...
Deleuil, Magali, Pollacco, Don, Baruteau, Clément, Rauer, Heike, Blanc, Michel   +4 more
openaire   +4 more sources

A Unified Treatment of Kepler Occurrence to Trace Planet Evolution. II. The Radius Cliff Formed by Atmospheric Escape

The Astronomical Journal
The Kepler mission enabled us to look at the intrinsic population of exoplanets within our galaxy. In period-radius space, the distribution of the intrinsic population of planets contains structure that can trace planet formation and evolution history ...
Anne Dattilo, Natalie M. Batalha
doaj   +1 more source

Ages for exoplanet host stars

, 2018
Age is an important characteristic of a planetary system, but also one that is difficult to determine. Assuming that the host star and the planets are formed at the same time, the challenge is to determine the stellar age.
A Claret, A Fogtmann-Schulz, A Skumanich, AHMJ Triaud, AJ Burgasser, AM Serenelli, Andrew W. Mann, Andrew W. Mann, Andrew W. Mann, Andrew W. Mann, B Durney, BR Jørgensen, CP Folsom, CP Folsom, D Huber, D Segransan, DR Soderblom, DR Soderblom, E Sandford, EE Mamajek, F Pont, FR Chromey, G Somers, Gaia Collaboration, Brown AGA, Vallenari A et al, H Rauer, JL Saders van, JN Connelly, K Zwintz, L Casagrande, M Asplund, M Gillon, MJ Thompson, P Sestito, PFL Maxted, PFL Maxted, R Hanbury Brown, R.D. Jeffries, RS Booth, Rudolf Kippenhahn, S Basu, S Deheuvels, S Meibom, S Meibom, S Meibom, S Meibom, SA Barnes, SA Barnes, SA Barnes, T. L. Campante, Tabetha S. Boyajian, TD Brandt, TM Brown, TR White, V Silva Aguirre, V Silva Aguirre   +54 more
core   +1 more source

Spectral Evolution of an Earth-Like Planet [PDF]

, 2006
We have developed a characterization of the geological evolution of the Earths atmosphere and surface in order to model the observable spectra of an Earth-like planet through its geological history.
Cloud P. E., Kenneth W. Jucks, Lisa Kaltenegger, Lovelock J. E., Wesley A. Traub   +4 more
core   +2 more sources

Strong Fractionation of Deuterium and Helium in Sub-Neptune Atmospheres along the Radius Valley

The Astrophysical Journal
We simulate atmospheric fractionation in escaping planetary atmospheres using IsoFATE , a new open-source numerical model. We expand the parameter space studied previously to planets with tenuous atmospheres that exhibit the greatest helium and deuterium
Collin Cherubim, Robin Wordsworth, Renyu Hu, Evgenya Shkolnik   +3 more
doaj   +1 more source

Evidence for Low-level Dynamical Excitation in Near-resonant Exoplanet Systems

The Astronomical Journal, 2023
The geometries of near-resonant planetary systems offer a relatively pristine window into the initial conditions of exoplanet systems. Given that near-resonant systems have likely experienced minimal dynamical disruptions, the spin–orbit orientations of ...
Malena Rice, Xian-Yu Wang, Songhu Wang, Avi Shporer, Khalid Barkaoui, Rafael Brahm, Karen A. Collins, Andrés Jordán, Nataliea Lowson, R. Paul Butler, Jeffrey D. Crane, Stephen Shectman, Johanna K. Teske, David Osip, Kevin I. Collins, Felipe Murgas, Gavin Boyle, Francisco J. Pozuelos, Mathilde Timmermans, Emmanuel Jehin, Michaël Gillon   +20 more
doaj   +1 more source

Lithium Niobate Quadratic Integrated Nonlinear Photonics: Enabling Ultra‐Wide Bandwidth and Ultrafast Photonic Engines

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
This perspective surveys emerging quantum and classical photonic applications across operating wavelengths and timescales, highlighting persistent technological gaps in integrated light sources. We examine the unique advantages of quadratic nonlinear photonics on the thin‐film lithium niobate (TFLN) platform and discuss strategies for realizing ...
Meng Tian, Guanyu Han, Ziyao Feng, Yu Liu, Yu Wang, Wenjun Deng, Ayed Al Sayem, Qiushi Guo   +7 more
wiley   +1 more source

Impacts of Carbon Dioxide Deposition on Martian Near‐Surface Wave Activity

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract A prominent feature of Mars' winter atmosphere is near‐surface baroclinic wave activity. These waves exert strong control on dust storm variability and contribute to transport of heat, momentum, and dust. Using a suite of Mars general circulation model simulations, we investigate an underexplored connection between near‐surface wave activity ...
Hung Kwan Fok, Anthony Toigo, Darryn Waugh   +2 more
wiley   +1 more source

Exploring Warm Jupiter Migration Pathways with Eccentricities. I. Catalog of Uniform Keplerian Fits to Radial Velocities of 200 Warm Jupiters

The Astrophysical Journal Supplement Series
Giant planets are expected to predominantly form beyond the water-ice line and occasionally undergo inward migration. Unlike hot Jupiters, which can result from high-eccentricity tidal migration, warm Jupiters between 0.1 and 1 au (≈10–365 days) are in ...
Marvin Morgan, Brendan P. Bowler, Quang H. Tran, Robert A. Wittenmyer, Duncan J. Wright, George Zhou, Tyler R. Fairnington   +6 more
doaj   +1 more source