Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Kiefer, Sven"'
Autor:
Kiefer, Sven, Samra, Dominic, Lewis, David A., Schneider, Aaron D., Min, Michiel, Carone, Ludmila, Decin, Leen, Helling, Christiane
The possibility of observing spectral features in exoplanet atmospheres with space missions like JWST and ARIEL necessitates the accurate modelling of cloud particle opacities. In exoplanet atmospheres, cloud particles can be made from multiple mater
Externí odkaz:
http://arxiv.org/abs/2409.01121
Autor:
Espinoza, Néstor, Steinrueck, Maria E., Kirk, James, MacDonald, Ryan J., Savel, Arjun B., Arnold, Kenneth, Kempton, Eliza M. -R., Murphy, Matthew M., Carone, Ludmila, Zamyatina, Maria, Lewis, David A., Samra, Dominic, Kiefer, Sven, Rauscher, Emily, Christie, Duncan, Mayne, Nathan, Helling, Christiane, Rustamkulov, Zafar, Parmentier, Vivien, May, Erin M., Carter, Aarynn L., Zhang, Xi, López-Morales, Mercedes, Allen, Natalie, Blecic, Jasmina, Decin, Leen, Mancini, Luigi, Molaverdikhani, Karan, Rackham, Benjamin V., Palle, Enric, Tsai, Shang-Min, Ahrer, Eva-Maria, Bean, Jacob L., Crossfield, Ian J. M., Haegele, David, Hébrard, Eric, Kreidberg, Laura, Powell, Diana, Schneider, Aaron D., Welbanks, Luis, Wheatley, Peter, Brahm, Rafael, Crouzet, Nicolas
Transmission spectroscopy has been a workhorse technique over the past two decades to constrain the physical and chemical properties of exoplanet atmospheres. One of its classical key assumptions is that the portion of the atmosphere it probes -- the
Externí odkaz:
http://arxiv.org/abs/2407.10294
Recent observations suggest the presence of clouds in exoplanet atmospheres but have also shown that certain chemical species in the upper atmosphere might not be in chemical equilibrium. The goal of this work is to calculate the two main cloud forma
Externí odkaz:
http://arxiv.org/abs/2311.03244
Publikováno v:
A&A 671, A169 (2023)
Nucleation is considered to be the first step in dust and cloud formation in the atmospheres of asymptotic giant branch (AGB) stars, exoplanets, and brown dwarfs. In these environments dust and cloud particles grow to macroscopic sizes when gas phase
Externí odkaz:
http://arxiv.org/abs/2302.08358
Spinning up the Surface: Evidence for Planetary Engulfment or Unexpected Angular Momentum Transport?
Autor:
Tayar, Jamie, Moyano, Facundo D., Soares-Furtado, Melinda, Escorza, Ana, Joyce, Meridith, Martell, Sarah L., García, Rafael A., Breton, Sylvain N., Mathis, Stéphane, Mathur, Savita, Delsanti, Vincent, Kiefer, Sven, Reffert, Sabine, Bowman, Dominic M., Van Reeth, Timothy, Shetye, Shreeya, Gehan, Charlotte, Grunblatt, Samuel K.
In this paper, we report the potential detection of a nonmonotonic radial rotation profile in a low-mass lower-luminosity giant star. For most low- and intermediate-mass stars, the rotation on the main sequence seems to be close to rigid. As these st
Externí odkaz:
http://arxiv.org/abs/2208.01678
Exploring the deep atmospheres of HD 209458b and WASP-43b using a non-gray general circulation model
Autor:
Schneider, Aaron David, Carone, Ludmila, Decin, Leen, Jørgensen, Uffe Gråe, Mollière, Paul, Baeyens, Robin, Kiefer, Sven, Helling, Christiane
Simulations with a 3D general circulation model (GCM) suggest that one potential driver behind the observed radius inflation in hot Jupiters may be the downward advection of energy from the highly irradiated photosphere into the deeper layers. Here,
Externí odkaz:
http://arxiv.org/abs/2202.09183
Autor:
Espinoza N; Space Telescope Science Institute, Baltimore, MD, USA. nespinoza@stsci.edu.; Department of Physics & Astronomy, Johns Hopkins University, Baltimore, MD, USA. nespinoza@stsci.edu., Steinrueck ME; Max Planck Institute for Astronomy (MPIA), Heidelberg, Germany.; Department of Astronomy & Astrophysics, University of Chicago, Chicago, IL, USA., Kirk J; Department of Physics, Imperial College London, London, UK., MacDonald RJ; Department of Astronomy, University of Michigan, Ann Arbor, MI, USA., Savel AB; Department of Astronomy, University of Maryland, College Park, MD, USA., Arnold K; Department of Astronomy, University of Maryland, College Park, MD, USA., Kempton EM; Department of Astronomy, University of Maryland, College Park, MD, USA., Murphy MM; Department of Astronomy and Steward Observatory, University of Arizona, Tucson, AZ, USA., Carone L; Space Research Institute, Austrian Academy of Sciences, Graz, Austria., Zamyatina M; Department of Physics and Astronomy, Faculty of Environment, Science and Economy, University of Exeter, Exeter, UK., Lewis DA; Space Research Institute, Austrian Academy of Sciences, Graz, Austria.; Institute for Theoretical Physics and Computational Physics, Graz University of Technology, Graz, Austria., Samra D; Space Research Institute, Austrian Academy of Sciences, Graz, Austria., Kiefer S; Space Research Institute, Austrian Academy of Sciences, Graz, Austria.; Institute of Astronomy, KU Leuven, Leuven, Belgium.; Centre for Exoplanet Science, University of St Andrews, St Andrews, UK.; Fakultät für Mathematik, Physik und Geodäsie, TU Graz, Graz, Austria., Rauscher E; Department of Astronomy, University of Michigan, Ann Arbor, MI, USA., Christie D; Max Planck Institute for Astronomy (MPIA), Heidelberg, Germany., Mayne N; Department of Physics and Astronomy, Faculty of Environment, Science and Economy, University of Exeter, Exeter, UK., Helling C; Space Research Institute, Austrian Academy of Sciences, Graz, Austria.; Institute for Theoretical Physics and Computational Physics, Graz University of Technology, Graz, Austria., Rustamkulov Z; Department of Physics & Astronomy, Johns Hopkins University, Baltimore, MD, USA., Parmentier V; Observatoire de la Côte d'Azur, Université Côte d'Azur, CNRS, Nice, France., May EM; Johns Hopkins APL, Laurel, MD, USA., Carter AL; Department of Astronomy & Astrophysics, University of California, Santa Cruz, Santa Cruz, CA, USA., Zhang X; Department of Earth and Planetary Sciences, University of California, Santa Cruz, Santa Cruz, CA, USA., López-Morales M; Center for Astrophysics, Harvard & Smithsonian, Cambridge, MA, USA., Allen N; Department of Physics & Astronomy, Johns Hopkins University, Baltimore, MD, USA., Blecic J; Department of Physics, New York University Abu Dhabi, Abu Dhabi, UAE.; Center for Astro, Particle, and Planetary Physics (CAP3), New York University Abu Dhabi, Abu Dhabi, UAE., Decin L; Institute of Astronomy, KU Leuven, Leuven, Belgium., Mancini L; Max Planck Institute for Astronomy (MPIA), Heidelberg, Germany.; Department of Physics, University of Rome 'Tor Vergata', Rome, Italy.; INAF - Turin Astrophysical Observatory, Pino Torinese, Italy., Molaverdikhani K; University Observatory Munich, Ludwig Maximilian University, Munich, Germany.; Exzellenzcluster Origins, Garching, Germany., Rackham BV; Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA.; Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, USA., Palle E; Instituto de Astrofísica de Canarias (IAC), Tenerife, Spain., Tsai SM; Department of Earth Sciences, University of California, Riverside, Riverside, CA, USA., Ahrer EM; Centre for Exoplanets and Habitability, University of Warwick, Coventry, UK., Bean JL; Department of Astronomy & Astrophysics, University of Chicago, Chicago, IL, USA., Crossfield IJM; Department of Physics & Astronomy, University of Kansas, Lawrence, KS, USA., Haegele D; Max Planck Institute for Astronomy (MPIA), Heidelberg, Germany., Hébrard E; Department of Physics and Astronomy, Faculty of Environment, Science and Economy, University of Exeter, Exeter, UK., Kreidberg L; Max Planck Institute for Astronomy (MPIA), Heidelberg, Germany., Powell D; Department of Astronomy & Astrophysics, University of Chicago, Chicago, IL, USA., Schneider AD; Institute of Astronomy, KU Leuven, Leuven, Belgium.; Centre for ExoLife Sciences, Niels Bohr Institute, Copenhagen, Denmark., Welbanks L; School of Earth and Space Exploration, Arizona State University, Tempe, AZ, USA., Wheatley P; Centre for Exoplanets and Habitability, University of Warwick, Coventry, UK., Brahm R; Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Santiago, Chile.; Millennium Institute for Astrophysics, Santiago, Chile.; Data Observatory Foundation, Santiago, Chile., Crouzet N; Leiden Observatory, Leiden University, Leiden, The Netherlands.
Publikováno v:
Nature [Nature] 2024 Aug; Vol. 632 (8027), pp. 1017-1020. Date of Electronic Publication: 2024 Jul 15.