Results 41 to 50 of about 53,007 (245)

Coupled evolutions of the stellar obliquity, orbital distance, and planet's radius due to the Ohmic dissipation induced in a diamagnetic hot Jupiter around a magnetic T Tauri star

, 2012
We revisit the calculation of the Ohmic dissipation in a hot Jupiter presented in Laine et al. (2008) by considering more realistic interior structures, stellar obliquity, and the resulting orbital evolution.
Adams, Adams, Baraffe, Batygin, Batygin, Bodenheimer, Campbell, Chang, Chatterjee, Dobbs-Dixon, Gu, Gu, Hut, Ida, Jackson, Johns-Krull, Kopp, Lai, Laine, Laine, Lodders, Matsumura, Nagasawa, Ohta, Perna, Peter H. Bodenheimer, Pin-Gao Gu, Rauscher, Showman, Showman, Thrastarson, Trammell, Vidotto, Winn, Winn, Wu, Wu, Yang, Yu-Ling Chang   +38 more
core   +1 more source

New Clues to Reveal Origins of Hot- and Warm-Jupiter: Mutual Occurrence Rate of Hot Jupiter，Warm Jupiter and Cold Jupiter [PDF]

, 2021
Abstract Many works based on the correlations between the occurrence rate of various giant planets and stellar properties of their hosts have provided clues revealing planetary formation processes. However, few researches have focused on the mutual occurrence rate of different type of planets and their dependency upon the stellar properties ...
Xiangning Su, Hui Zhang, Jilin Zhou
openaire   +1 more source

Three Warm Jupiters around Solar-analog Stars Detected with TESS

The Astronomical Journal, 2023
We report the discovery and characterization of three giant exoplanets orbiting solar-analog stars, detected by the TESS space mission and confirmed through ground-based photometry and radial velocity measurements taken at La Silla observatory with FEROS.
Jan Eberhardt, Melissa J. Hobson, Thomas Henning, Trifon Trifonov, Rafael Brahm, Nestor Espinoza, Andrés Jordán, Daniel Thorngren, Remo Burn, Felipe I. Rojas, Paula Sarkis, Martin Schlecker, Marcelo Tala Pinto, Khalid Barkaoui, Richard P. Schwarz, Olga Suarez, Tristan Guillot, Amaury H. M. J. Triaud, Maximilian N. Günther, Lyu Abe, Gavin Boyle, Rodrigo Leiva, Vincent Suc, Phil Evans, Nick Dunckel, Carl Ziegler, Ben Falk, William Fong, Alexander Rudat, Avi Shporer, Stephanie Striegel, David Watanabe, Jon M. Jenkins, Sara Seager, Joshua N. Winn   +34 more
doaj   +1 more source

Thermal tides in rotating hot Jupiters [PDF]

Monthly Notices of the Royal Astronomical Society, 2019
ABSTRACT We calculate tidal torque due to semidiurnal thermal tides in rotating hot Jupiters, taking account of the effects of radiative cooling in the envelope and of the planets rotation on the tidal responses. We use a simple Jovian model composed of a nearly isentropic convective core and a thin radiative envelope.
Lee, Umin, Murakami, Daiki
openaire   +2 more sources

Hot Jupiters in Binary Star Systems [PDF]

The Astrophysical Journal, 2007
Radial velocity surveys find Jupiter mass planets with semi-major axes a less than 0.1 AU around ~1% of solar-type stars; counting planets with $a$ as large as 5 AU, the fraction of stars having planets reaches ~ 10% {Marcy,Butler}. An examination of the distribution of semi-major axes shows that there is a clear excess of planets with orbital periods ...
Wu, Yanqin, Murray, Norman W., Ramsahai, J. Michael   +2 more
openaire   +2 more sources

Reinflation of Warm and Hot Jupiters [PDF]

The Astrophysical Journal, 2020
Abstract Understanding the anomalous radii of many transiting hot gas-giant planets is a fundamental problem of planetary science. Recent detections of reinflated warm Jupiters orbiting post-main-sequence stars and the reinflation of hot Jupiters while their host stars evolve on the main sequence may help constrain models for the ...
Thaddeus D. Komacek, Daniel P. Thorngren, Eric D. Lopez, Sivan Ginzburg   +3 more
openaire   +2 more sources

Qatar-2: A K dwarf orbited by a transiting hot Jupiter and a more massive companion in an outer orbit [PDF]

, 2011
We report the discovery and initial characterization of Qatar-2b, a hot Jupiter transiting a V = 13.3 mag K dwarf in a circular orbit with a short period, P_ b = 1.34 days.
Andrew Collier Cameron, Bakos, Batalha, Bean, Benjamin J. Fulton, Borucki, Buchhave, Christine Liebig, David W. Latham, Davide Ricci, Gilbert A. Esquerdo, Guillermo Torres, Gábor Fűrész, Jesper F. Skottfelt, Joshua A. Carter, Keith D. Horne, Kennet B. W. Harpsøe, Khalid A. Alsubai, Kipping, Lars A. Buchhave, Latham, Latham, Lissauer, Mandel, Marta L. Bryan, Martin Dominik, Michael L. Calkins, Neil R. Parley, Perry Berlind, Rachel A. Street, Richard G. West, Robert P. Stefanik, Samuel N. Quinn, Schneider, Sebastiano Calchi Novati, Torres, Torres, Uffe Gråe Jørgensen, Warren R. Brown, Yi, Zacharias   +40 more
core   +2 more sources

A Testbed for Tidal Migration: The 3D Architecture of an Eccentric Hot Jupiter HD 118203 b Accompanied by a Possibly Aligned Outer Giant Planet

The Astronomical Journal
Characterizing outer companions to hot Jupiters plays a crucial role in deciphering their origins. We present the discovery of a long-period giant planet, HD 118203 c ( ${m}_{c}={11.79}_{-0.63}^{+0.69}\ {M}_{{\rm{J}}}$ , ${a}_{c}={6.28}_{-0.11}^{+0.10 ...
Jingwen Zhang, Daniel Huber, Lauren M. Weiss, Jerry W. Xuan, Jennifer A. Burt, Fei Dai, Nicholas Saunders, Erik A. Petigura, Ryan A. Rubenzahl, Joshua N. Winn, Sharon X. Wang, Judah Van Zandt, Max Brodheim, Zachary R. Claytor, Ian Crossfield, William Deich, Benjamin J. Fulton, Steven R. Gibson, Samuel Halverson, Grant M. Hill, Bradford Holden, Aaron Householder, Andrew W. Howard, Howard Isaacson, Stephen Kaye, Kyle Lanclos, Russ R. Laher, Jack Lubin, Joel Payne, Arpita Roy, Christian Schwab, Abby P. Shaum, Josh Walawender, Edward Wishnow, Sherry Yeh   +34 more
doaj   +1 more source

Fabrication Method of Directional Microstructure for High Energy Density, High Power Battery Cathodes

Advanced Materials Interfaces, EarlyView.
Aqueous directional ice templating (DIT) is developed for making NMC811 cathodes containing vertically aligned pore arrays through electrode thickness. The effects of calendering are studied for the DIT electrodes to find optimal calendering and simultaneously achieve high gravimetric and volumetric energy densities and rate capability for lithium ion ...
Guanting Li, Kaiyi Wang, Lin Shen, Chun Huang   +3 more
wiley   +1 more source

Extreme orbital evolution from hierarchical secular coupling of two giant planets

, 2013
Observations of exoplanets over the last two decades have revealed a new class of Jupiter-size planets with orbital periods of a few days, the so-called "hot Jupiters". Recent measurements using the Rossiter-McLaughlin effect have shown that many (~ 50%)
Lizarraga, Ian M., Naoz, Smadar, Rasio, Frederic A., Teyssandier, Jean   +3 more
core   +3 more sources