Zobrazeno 1 - 10
of 631
pro vyhledávání: '"Sing, A K"'
A primary goal of characterizing exoplanet atmospheres is to constrain planetary bulk properties, such as their metallicity, C/O ratio, and intrinsic heat. However, there are significant uncertainties in many aspects of atmospheric physics, such as t
Externí odkaz:
http://arxiv.org/abs/2410.17169
Autor:
Bennett, Katherine A., Sing, David K., Stevenson, Kevin B., Wakeford, Hannah R., Rustamkulov, Zafar, Allen, Natalie H., Lothringer, Joshua D., MacDonald, Ryan J., Mayne, Nathan J., Fu, Guangwei
Which rocky exoplanets have atmospheres, and which do not? This presumably simply question is the first that must be answered in the pathway toward understanding the prevalence of nearby habitable planets. A mere 6.9 pc from Earth, the LTT 1445A syst
Externí odkaz:
http://arxiv.org/abs/2410.11054
Autor:
Saunders, Nicholas, Grunblatt, Samuel K., Huber, Daniel, Ong, J. M. Joel, Schlaufman, Kevin C., Hey, Daniel, Li, Yaguang, Butler, R. P., Crane, Jeffrey D., Shectman, Steve, Teske, Johanna K., Quinn, Samuel N., Yee, Samuel W., Brahm, Rafael, Trifonov, Trifon, Jordán, Andrés, Henning, Thomas, Sing, David K., MacGregor, Meredith, Page, Emma, Rapetti, David, Falk, Ben, Levine, Alan M., Huang, Chelsea X., Lund, Michael B., Ricker, George R., Seager, S., Winn, Joshua N., Jenkins, Jon M.
We present the discovery of TOI-7041 b (TIC 201175570 b), a hot Saturn transiting a red giant star with measurable stellar oscillations. We observe solar-like oscillations in TOI-7041 with a frequency of maximum power of $\nu_{\rm max} = 218.50\pm2.2
Externí odkaz:
http://arxiv.org/abs/2410.11037
Autor:
Inglis, Julie, Batalha, Natasha E., Lewis, Nikole K., Kataria, Tiffany, Knutson, Heather A., Kilpatrick, Brian M., Gagnebin, Anna, Mukherjee, Sagnick, Pettyjohn, Maria M., Crossfield, Ian J. M., Foote, Trevor O., Grant, David, Henry, Gregory W., Lally, Maura, McKemmish, Laura K., Sing, David K., Wakeford, Hannah R., Trujillo, Juan C. Zapata, Zellem, Robert T.
Recent mid-infrared observations with JWST/MIRI have resulted in the first direct detections of absorption features from silicate clouds in the transmission spectra of two transiting exoplanets, WASP-17 b and WASP-107 b. In this paper, we measure the
Externí odkaz:
http://arxiv.org/abs/2409.11395
Autor:
Gressier, Amélie, Espinoza, Néstor, Allen, Natalie H., Sing, David K., Banerjee, Agnibha, Barstow, Joanna K., Valenti, Jeff A., Lewis, Nikole K., Birkmann, Stephan M., Challener, Ryan C., Manjavacas, Elena, de Oliveira, Catarina Alves, Crouzet, Nicolas, Beck, Tracy. L
Detecting atmospheres around planets with a radius below 1.6 R$_{\oplus}$, commonly referred to as rocky planets (Rogers_2015, Rogers_2021), has proven to be challenging. However, rocky planets orbiting M-dwarfs are ideal candidates due to their favo
Externí odkaz:
http://arxiv.org/abs/2408.15855
Autor:
Banerjee, Agnibha, Barstow, Joanna K., Gressier, Amélie, Espinoza, Néstor, Sing, David K., Allen, Natalie H., Birkmann, Stephan M., Challener, Ryan C., Crouzet, Nicolas, Haswell, Carole A., Lewis, Nikole K., Lewis, Stephen R., Yang, Jingxuan
L 98-59 d is a Super-Earth planet orbiting an M-type star. We performed retrievals on the transmission spectrum of L 98-59 d obtained using NIRSpec G395H during a single transit, from JWST Cycle 1 GTO 1224. The wavelength range of this spectrum allow
Externí odkaz:
http://arxiv.org/abs/2408.15707
Autor:
Carter, A. L., May, E. M., Espinoza, N., Welbanks, L., Ahrer, E., Alderson, L., Brahm, R., Feinstein, A. D., Grant, D., Line, M., Morello, G., O'Steen, R., Radica, M., Rustamkulov, Z., Stevenson, K. B., Turner, J. D., Alam, M. K., Anderson, D. R., Batalha, N. M., Battley, M. P., Bayliss, D., Bean, J. L., Benneke, B., Berta-Thompson, Z. K., Brande, J., Bryant, E. M., Burleigh, M. R., Coulombe, L., Crossfield, I. J. M., Damiano, M., Désert, J. -M., Flagg, L., Gill, S., Inglis, J., Kirk, J., Knutson, H., Kreidberg, L., Morales, M. López, Mansfield, M., Moran, S. E., Murray, C. A., Nixon, M. C., de la Roche, D. J. M. Petit dit, Rackham, B. V., Schlawin, E., Sing, D. K., Wakeford, H. R., Wallack, N. L., Wheatley, P. J., Zieba, S., Aggarwal, K., Barstow, J. K., Bell, T. J., Blecic, J., Caceres, C., Crouzet, N., Cubillos, P. E., Daylan, T., de Val-Borro, M., Decin, L., Fortney, J. J., Gibson, N. P., Heng, K., Hu, R., Kempton, E M. -R., Lagage, P., Lothringer, J. D., Lustig-Yaeger, J., Mancini, L., Mayne, N. J., Mayorga, L. C., Molaverdikhani, K., Nasedkin, E., Ohno, K., Parmentier, V., Powell, D., Redfield, S., Roy, P., Taylor, J., Zhang, X.
Observing exoplanets through transmission spectroscopy supplies detailed information on their atmospheric composition, physics, and chemistry. Prior to JWST, these observations were limited to a narrow wavelength range across the near-ultraviolet to
Externí odkaz:
http://arxiv.org/abs/2407.13893
Autor:
Powell, Diana, Feinstein, Adina D., Lee, Elspeth K. H., Zhang, Michael, Tsai, Shang-Min, Taylor, Jake, Kirk, James, Bell, Taylor, Barstow, Joanna K., Gao, Peter, Bean, Jacob L., Blecic, Jasmina, Chubb, Katy L., Crossfield, Ian J. M., Jordan, Sean, Kitzmann, Daniel, Moran, Sarah E., Morello, Giuseppe, Moses, Julianne I., Welbanks, Luis, Yang, Jeehyun, Zhang, Xi, Ahrer, Eva-Maria, Bello-Arufe, Aaron, Brande, Jonathan, Casewell, S. L., Crouzet, Nicolas, Cubillos, Patricio E., Demory, Brice-Olivier, Dyrek, Achrène, Flagg, Laura, Hu, Renyu, Inglis, Julie, Jones, Kathryn D., Kreidberg, Laura, López-Morales, Mercedes, Lagage, Pierre-Olivier, Valdés, Erik A. Meier, Miguel, Yamila, Parmentier, Vivien, Piette, Anjali A. A., Rackham, Benjamin V., Radica, Michael, Redfield, Seth, Stevenson, Kevin B., Wakeford, Hannah R., Aggarwal, Keshav, Alam, Munazza K., Batalha, Natalie M., Batalha, Natasha E., Benneke, Björn, Berta-Thompson, Zach K., Brady, Ryan P., Caceres, Claudio, Carter, Aarynn L., Désert, Jean-Michel, Harrington, Joseph, Iro, Nicolas, Line, Michael R., Lothringer, Joshua D., MacDonald, Ryan J., Mancini, Luigi, Molaverdikhani, Karan, Mukherjee, Sagnick, Nixon, Matthew C., Oza, Apurva V., Palle, Enric, Rustamkulov, Zafar, Sing, David K., Steinrueck, Maria E., Venot, Olivia, Wheatley, Peter J., Yurchenko, Sergei N.
Publikováno v:
Nature 626, 979-983 (2024)
The recent inference of sulphur dioxide (SO$_2$) in the atmosphere of the hot ($\sim$1100 K), Saturn-mass exoplanet WASP-39b from near-infrared JWST observations suggests that photochemistry is a key process in high temperature exoplanet atmospheres.
Externí odkaz:
http://arxiv.org/abs/2407.07965
Autor:
Fu, Guangwei, Welbanks, Luis, Deming, Drake, Inglis, Julie, Zhang, Michael, Lothringer, Joshua, Ih, Jegug, Moses, Julianne I., Schlawin, Everett, Knutson, Heather A., Henry, Gregory, Greene, Thomas, Sing, David K., Savel, Arjun B., Kempton, Eliza M. -R., Louie, Dana R., Line, Michael, Nixon, Matt
As the closest transiting hot Jupiter to Earth, HD 189733b has been the benchmark planet for atmospheric characterization. It has also been the anchor point for much of our theoretical understanding of exoplanet atmospheres from composition, chemistr
Externí odkaz:
http://arxiv.org/abs/2407.06163
Autor:
Challener, Ryan C., Rustamkulov, Zafar, Lee, Elspeth K. H., Lewis, Nikole, Sing, David K., Birkmann, Stephan M., Crouzet, Nicolas, Espinoza, Néstor, Manjavacas, Elena, Oliveros-Gomez, Natalia, Valenti, Jeff A., Yang, Jingxuan
We present two-dimensional near-infrared temperature maps of the canonical hot Jupiter WASP-43b using a phase-curve observation with JWST NIRSpec/G395H. From the white-light planetary transit, we improve constraints on the planet's orbital parameters
Externí odkaz:
http://arxiv.org/abs/2406.10207