Zobrazeno 1 - 10
of 266
pro vyhledávání: '"Jacobsen, Stein B."'
The exoplanet field now abounds with new discoveries of planets and planetary systems. It is of great interest for the scientific community to understand the compositions and internal structures of these new planets outside our own solar system, and
Externí odkaz:
http://arxiv.org/abs/2211.06518
Autor:
Zeng, Li, Jacobsen, Stein B.
Publikováno v:
Icarus, Volume 414, 116033, 2024
We explain the overall equilibrium-temperature-dependent trend in the exoplanet mass-radius diagram, using the escape mechanisms of hydrogen and relevant volatiles, and the chemical equilibrium calculation of molecular hydrogen (H$_2$) break-up into
Externí odkaz:
http://arxiv.org/abs/2211.06010
Autor:
Zeng, Li, Jacobsen, Stein B., Hyung, Eugenia, Levi, Amit, Nava, Chantanelle, Kirk, James, Piaulet, Caroline, Lacedelli, Gaia, Sasselov, Dimitar D., Petaev, Michail I., Stewart, Sarah T., Alam, Munazza K., López-Morales, Mercedes, Damasso, Mario, Latham, David W.
Publikováno v:
ApJ 923 247 (2021)
Recent astronomical observations obtained with the Kepler and TESS missions and their related ground-based follow-ups revealed an abundance of exoplanets with a size intermediate between Earth and Neptune. A low occurrence rate of planets has been id
Externí odkaz:
http://arxiv.org/abs/2201.02125
Autor:
Zeng, Li, Jacobsen, Stein B.
Publikováno v:
In Icarus 15 May 2024 414
Publikováno v:
In Geochimica et Cosmochimica Acta 15 May 2024 373:326-341
Autor:
Stewart, Sarah T., Davies, Erik J., Duncan, Megan S., Lock, Simon J., Root, Seth, Townsend, Joshua P., Kraus, Richard G., Caracas, Razvan, Jacobsen, Stein B.
We discuss major challenges in modeling giant impacts between planetary bodies, focusing on the equations of state (EOS). During the giant impact stage of planet formation, rocky planets are melted and partially vaporized. However, most EOS models fa
Externí odkaz:
http://arxiv.org/abs/1910.04687
Autor:
Zeng, Li, Jacobsen, Stein B., Sasselov, Dimitar D., Petaev, Michail I., Vanderburg, Andrew, Lopez-Morales, Mercedes, Perez-Mercader, Juan, Mattsson, Thomas R., Li, Gongjie, Heising, Matthew Z., Bonomo, Aldo S., Damasso, Mario, Berger, Travis A., Cao, Hao, Levi, Amit, Wordsworth, Robin D.
Publikováno v:
PNAS May 2019, 116 (20) 9723-9728
The radii and orbital periods of 4000+ confirmed/candidate exoplanets have been precisely measured by the Kepler mission. The radii show a bimodal distribution, with two peaks corresponding to smaller planets (likely rocky) and larger intermediate-si
Externí odkaz:
http://arxiv.org/abs/1906.04253
Autor:
Hyung, Eugenia, Sedaghatpour, Fatemeh, Larsen, Bjørn T., Neumann, Else-Ragnhild, Eriksen, Zachary T., Petaev, Michail I., Jacobsen, Stein B.
Publikováno v:
In Chemical Geology 5 April 2023 622
Applying the survival function analysis to the planet radius distribution of the Kepler confirmed/candidate planets, we have identified two natural divisions of planet radius at 4 Earth radii and 10 Earth radii. These divisions place constraints on p
Externí odkaz:
http://arxiv.org/abs/1806.11234
Autor:
Zeng, Li, Jacobsen, Stein B., Hyung, Eugenia, Vanderburg, Andrew, Lopez-Morales, Mercedes, Sasselov, Dimitar D., Perez-Mercader, Juan, Petaev, Michail I., Latham, David W., Haywood, Raphaëlle D., Mattson, Thomas K. R.
The size distribution of exoplanets is a bimodal division into two groups: Rocky planet (<2 Earth radii) and water-rich planet (>2 Earth radii) with or without gaseous envelope.
Comment: 2 pages, 4 figures, abstract publicly available since Janu
Comment: 2 pages, 4 figures, abstract publicly available since Janu
Externí odkaz:
http://arxiv.org/abs/1806.05909