Zobrazeno 1 - 10
of 234
pro vyhledávání: '"Jacob L Bean"'
Autor:
Megan Weiner Mansfield, Qiao Xue, Michael Zhang, Alexandra S. Mahajan, Jegug Ih, Daniel Koll, Jacob L. Bean, Brandon Park Coy, Jason D. Eastman, Eliza M.-R. Kempton, Edwin S. Kite
Publikováno v:
The Astrophysical Journal Letters, Vol 975, Iss 1, p L22 (2024)
A primary science goal for JWST is to detect and characterize the atmospheres of terrestrial planets orbiting M dwarfs (M-Earths). The existence of atmospheres on M-Earths is highly uncertain because their host stars’ extended history of high X-ray
Externí odkaz:
https://doaj.org/article/d6f7ff64ee9b401ca737aa87390cd40f
Autor:
Qiao Xue, Jacob L. Bean, Michael Zhang, Alexandra Mahajan, Jegug Ih, Jason D. Eastman, Jonathan Lunine, Megan Weiner Mansfield, Brandon Park Coy, Eliza M.-R. Kempton, Daniel Koll, Edwin Kite
Publikováno v:
The Astrophysical Journal Letters, Vol 973, Iss 1, p L8 (2024)
We present thermal emission measurements of GJ 1132b spanning 5–12 μ m obtained with the Mid-Infrared Instrument Low-Resolution Spectrometer on the James Webb Space Telescope. GJ 1132b is an M dwarf rocky planet with T _eq = 584 K and an orbital p
Externí odkaz:
https://doaj.org/article/2540d1f40b9f4a4f84119e0c1eaaa58c
Autor:
Jennifer A. Burt, Matthew J. Hooton, Eric E. Mamajek, Oscar Barragán, Sarah C. Millholland, Tyler R. Fairnington, Chloe Fisher, Samuel P. Halverson, Chelsea X. Huang, Madison Brady, Andreas Seifahrt, Eric Gaidos, Rafael Luque, David Kasper, Jacob L. Bean
Publikováno v:
The Astrophysical Journal Letters, Vol 971, Iss 1, p L12 (2024)
We present an updated characterization of the TOI-1685 planetary system, which consists of a P _b = 0.69 day ultra-short-period super-Earth planet orbiting a nearby ( d = 37.6 pc) M2.5V star (TIC 28900646, 2MASS J04342248+4302148). This planet was pr
Externí odkaz:
https://doaj.org/article/c6b6d480453b4a9bbd4ab2d8fa228093
Autor:
Matthew C. Nixon, Anjali A. A. Piette, Eliza M.-R. Kempton, Peter Gao, Jacob L. Bean, Maria E. Steinrueck, Alexandra S. Mahajan, Jason D. Eastman, Michael Zhang, Leslie A. Rogers
Publikováno v:
The Astrophysical Journal Letters, Vol 970, Iss 2, p L28 (2024)
Recent JWST observations of the sub-Neptune GJ 1214 b suggest that it hosts a high-metallicity (≳100× solar), hazy atmosphere. Emission spectra of the planet show molecular absorption features, most likely due to atmospheric H _2 O. In light of th
Externí odkaz:
https://doaj.org/article/b744931c898a435b8aecc96ce0df8efc
Autor:
Tianjun Gan, Sharon X. Wang, Fei Dai, Joshua N. Winn, Shude Mao, Siyi Xu, Enric Pallé, Jacob L. Bean, Madison Brady, Nina Brown, Cicero Lu, Rafael Luque, Teo Mocnik, Andreas Seifahrt, Guđmundur K. Stefánsson
Publikováno v:
The Astrophysical Journal Letters, Vol 969, Iss 1, p L24 (2024)
Measuring the obliquities of stars hosting giant planets may shed light on the dynamical history of planetary systems. Significant efforts have been made to measure the obliquities of FGK stars with hot Jupiters, mainly based on observations of the R
Externí odkaz:
https://doaj.org/article/6b3b9bce44514f2ea43df506c5244b0a
Autor:
Laura Flagg, Alycia J. Weinberger, Taylor J. Bell, Luis Welbanks, Giuseppe Morello, Diana Powell, Jacob L. Bean, Jasmina Blecic, Nicolas Crouzet, Peter Gao, Julie Inglis, James Kirk, Mercedes López-Morales, Karan Molaverdikhani, Nikolay Nikolov, Apurva V. Oza, Benjamin V. Rackham, Seth Redfield, Shang-Min Tsai, Ray Jayawardhana, Laura Kreidberg, Matthew C. Nixon, Kevin B. Stevenson, Jake D. Turner
Publikováno v:
The Astrophysical Journal Letters, Vol 969, Iss 1, p L19 (2024)
The signal from a transiting planet can be diluted by astrophysical contamination. In the case of circumstellar debris disks, this contamination could start in the mid-infrared and vary as a function of wavelength, which would then change the observe
Externí odkaz:
https://doaj.org/article/750b90c82c7c4225aafe880362fc36d2
Publikováno v:
The Astrophysical Journal Letters, Vol 963, Iss 1, p L5 (2024)
We present the transmission spectrum of the original transiting hot Jupiter HD 209458b from 2.3 to 5.1 μ m as observed with the NIRCam instrument on the James Webb Space Telescope (JWST). Previous studies of HD 209458b’s atmosphere have given conf
Externí odkaz:
https://doaj.org/article/3440343affa642dd9548c0d1c3d6036b
Autor:
Michael Zhang, Renyu Hu, Julie Inglis, Fei Dai, Jacob L. Bean, Heather A. Knutson, Kristine Lam, Elisa Goffo, Davide Gandolfi
Publikováno v:
The Astrophysical Journal Letters, Vol 961, Iss 2, p L44 (2024)
We present the mid-infrared (5–12 μ m) phase curve of GJ 367b observed by the Mid-Infrared Instrument on the James Webb Space Telescope (JWST). GJ 367b is a hot ( T _eq = 1370 K), extremely dense (10.2 ± 1.3 g cm ^−3 ) sub-Earth orbiting an M d
Externí odkaz:
https://doaj.org/article/11664dd2d56d488cbdedfe5fc670d58c
Autor:
Michael Zhang, Kimberly Paragas, Jacob L. Bean, Joseph Yeung, Yayaati Chachan, Thomas P. Greene, Jonathan Lunine, Drake Deming
Publikováno v:
The Astronomical Journal, Vol 169, Iss 1, p 38 (2024)
We present the 2.4–5.0 μ m JWST/NIRCam emission spectrum of HD 189733b, along with an independent re-reduction of the previously published transmission spectrum at the same wavelengths. We use an upgraded version of PLanetary Atmospheric Tool for
Externí odkaz:
https://doaj.org/article/bd6d5caa77fc495cb657b2ca9026ddbe
Autor:
Lisa Dang, Taylor J. Bell, Ying (Zoe) Shu, Nicolas B. Cowan, Jacob L. Bean, Drake Deming, Eliza M.-R. Kempton, Megan Weiner Mansfield, Emily Rauscher, Vivien Parmentier, Alexandra Rochon, Kevin B. Stevenson, Mark Swain, Laura Kreidberg, Tiffany Kataria, Jean-Michel Désert, Robert Zellem, Jonathan J. Fortney, Nikole K. Lewis, Michael Line, Caroline Morley, Adam Showman
Publikováno v:
The Astronomical Journal, Vol 169, Iss 1, p 32 (2024)
Although exoplanetary science was not initially projected to be a substantial part of the Spitzer mission, its exoplanet observations set the stage for current and future surveys with JWST and Ariel. We present a comprehensive reduction and analysis
Externí odkaz:
https://doaj.org/article/123f9b96b7214bc8a90a31ae941fea0e