Zobrazeno 1 - 10
of 192
pro vyhledávání: '"Nixon, Matthew"'
Autor:
Masuda, Kento, Libby-Roberts, Jessica E., Livingston, John H., Stevenson, Kevin B., Gao, Peter, Vissapragada, Shreyas, Fu, Guangwei, Han, Te, Greklek-McKeon, Michael, Mahadevan, Suvrath, Agol, Eric, Bello-Arufe, Aaron, Berta-Thompson, Zachory, Canas, Caleb I., Chachan, Yayaati, Hebb, Leslie, Hu, Renyu, Kawashima, Yui, Knutson, Heather A., Morley, Caroline V., Murray, Catriona A., Ohno, Kazumasa, Tokadjian, Armen, Zhang, Xi, Welbanks, Luis, Nixon, Matthew C., Freedman, Richard, Narita, Norio, Fukui, Akihiko, de Leon, Jerome P., Mori, Mayuko, Palle, Enric, Murgas, Felipe, Parviainen, Hannu, Esparza-Borges, Emma, Jontof-Hutter, Daniel, Collins, Karen A., Benni, Paul, Barkaoui, Khalid, Pozuelos, Francisco J., Gillon, Michael, Jehin, Emmanuel, Benkhaldoun, Zouhair, Hawley, Suzanne, Lin, Andrea S. J., Stefansson, Gudmundur, Bieryla, Allyson, Yilmaz, Mesut, Senavci, Hakan Volkan, Girardin, Eric, Marino, Giuseppe, Wang, Gavin
Kepler-51 is a $\lesssim 1\,\mathrm{Gyr}$-old Sun-like star hosting three transiting planets with radii $\approx 6$-$9\,R_\oplus$ and orbital periods $\approx 45$-$130\,\mathrm{days}$. Transit timing variations (TTVs) measured with past Kepler and Hu
Externí odkaz:
http://arxiv.org/abs/2410.01625
Autor:
Nixon, Matthew C., Piette, Anjali A. A., Kempton, Eliza M. -R., Gao, Peter, Bean, Jacob L., Steinrueck, Maria E., Mahajan, Alexandra S., Eastman, Jason D., Zhang, Michael, Rogers, Leslie A.
Recent JWST observations of the sub-Neptune GJ 1214 b suggest that it hosts a high-metallicity (>100x solar), hazy atmosphere. Emission spectra of the planet show molecular absorption features, most likely due to atmospheric H2O. In light of this new
Externí odkaz:
http://arxiv.org/abs/2407.12079
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:
Yang, Jingxuan, Hammond, Mark, Piette, Anjali A. A., Blecic, Jasmina, Bell, Taylor J., Irwin, Patrick G. J., Parmentier, Vivien, Tsai, Shang-Min, Barstow, Joanna K., Crouzet, Nicolas, Kreidberg, Laura, Mendonça, João M., Taylor, Jake, Baeyens, Robin, Ohno, Kazumasa, Teinturier, Lucas, Nixon, Matthew C.
Spectroscopic phase curves of hot Jupiters measure their emission spectra at multiple orbital phases, thus enabling detailed characterisation of their atmospheres. Precise constraints on the atmospheric composition of these exoplanets offer insights
Externí odkaz:
http://arxiv.org/abs/2406.03490
Autor:
Flagg, Laura, Weinberger, Alycia J., Bell, Taylor J., Welbanks, Luis, Morello, Giuseppe, Powell, Diana, Bean, Jacob L., Blecic, Jasmina, Crouzet, Nicolas, Gao, Peter, Inglis, Julie, Kirk, James, Lopez-Morales, Mercedes, Molaverdikhani, Karan, Nikolov, Nikolay, Oza, Apurva V., Rackham, Benjamin V., Redfield, Seth, Tsai, Shang-Min, Jayawardhana, Ray, Kreidberg, Laura, Nixon, Matthew C., Stevenson, Kevin B., Turner, Jake D.
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:
http://arxiv.org/abs/2406.02305
Autor:
Hammond, Mark, Bell, Taylor J., Challener, Ryan C., Lewis, Neil T., Mansfield, Megan Weiner, Malsky, Isaac, Rauscher, Emily, Bean, Jacob L., Carone, Ludmila, Mendonça, João M., Teinturier, Lucas, Tan, Xianyu, Crouzet, Nicolas, Kreidberg, Laura, Morello, Giuseppe, Parmentier, Vivien, Blecic, Jasmina, Désert, Jean-Michel, Helling, Christiane, Lagage, Pierre-Olivier, Molaverdikhani, Karan, Nixon, Matthew C., Rackham, Benjamin V., Yang, Jingxuan
We present eclipse maps of the two-dimensional thermal emission from the dayside of the hot Jupiter WASP-43b, derived from an observation of a phase curve with the JWST MIRI/LRS instrument. The observed eclipse shapes deviate significantly from those
Externí odkaz:
http://arxiv.org/abs/2404.16488
Autor:
Bell, Taylor J., Crouzet, Nicolas, Cubillos, Patricio E., Kreidberg, Laura, Piette, Anjali A. A., Roman, Michael T., Barstow, Joanna K., Blecic, Jasmina, Carone, Ludmila, Coulombe, Louis-Philippe, Ducrot, Elsa, Hammond, Mark, Mendonça, João M., Moses, Julianne I., Parmentier, Vivien, Stevenson, Kevin B., Teinturier, Lucas, Zhang, Michael, Batalha, Natalie M., Bean, Jacob L., Benneke, Björn, Charnay, Benjamin, Chubb, Katy L., Demory, Brice-Olivier, Gao, Peter, Lee, Elspeth K. H., López-Morales, Mercedes, Morello, Giuseppe, Rauscher, Emily, Sing, David K., Tan, Xianyu, Venot, Olivia, Wakeford, Hannah R., Aggarwal, Keshav, Ahrer, Eva-Maria, Alam, Munazza K., Baeyens, Robin, Barrado, David, Caceres, Claudio, Carter, Aarynn L., Casewell, Sarah L., Challener, Ryan C., Crossfield, Ian J. M., Decin, Leen, Désert, Jean-Michel, Dobbs-Dixon, Ian, Dyrek, Achrène, Espinoza, Néstor, Feinstein, Adina D., Gibson, Neale P., Harrington, Joseph, Helling, Christiane, Hu, Renyu, Iro, Nicolas, Kempton, Eliza M. -R., Kendrew, Sarah, Komacek, Thaddeus D., Krick, Jessica, Lagage, Pierre-Olivier, Leconte, Jérémy, Lendl, Monika, Lewis, Neil T., Lothringer, Joshua D., Malsky, Isaac, Mancini, Luigi, Mansfield, Megan, Mayne, Nathan J., Mikal-Evans, Thomas, Molaverdikhani, Karan, Nikolov, Nikolay K., Nixon, Matthew C., Palle, Enric, de la Roche, Dominique J. M. Petit dit, Piaulet, Caroline, Powell, Diana, Rackham, Benjamin V., Schneider, Aaron D., Steinrueck, Maria E., Taylor, Jake, Welbanks, Luis, Yurchenko, Sergei N., Zhang, Xi, Zieba, Sebastian
Hot Jupiters are among the best-studied exoplanets, but it is still poorly understood how their chemical composition and cloud properties vary with longitude. Theoretical models predict that clouds may condense on the nightside and that molecular abu
Externí odkaz:
http://arxiv.org/abs/2401.13027
A key goal of exoplanet spectroscopy is to measure atmospheric properties, such as abundances of chemical species, in order to connect them to our understanding of atmospheric physics and planet formation. In this new era of high-quality JWST data, i
Externí odkaz:
http://arxiv.org/abs/2310.03713
Autor:
Esparza-Borges, Emma, López-Morales, Mercedes, Redai, Jéa I. Adams, Pallé, Enric, Kirk, James, Casasayas-Barris, Núria, Batalha, Natasha E., Rackham, Benjamin V., Bean, Jacob L., Casewell, S. L., Decin, Leen, Santos, Leonardo A. Dos, Muñoz, Antonio García, Harrington, Joseph, Heng, Kevin, Hu, Renyu, Mancini, Luigi, Molaverdikhani, Karan, Morello, Giuseppe, Nikolov, Nikolay K., Nixon, Matthew C., Redfield, Seth, Stevenson, Kevin B., Wakeford, Hannah R., Alam, Munazza K., Benneke, Björn, Blecic, Jasmina, Crouzet, Nicolas, Daylan, Tansu, Inglis, Julie, Kreidberg, Laura, de la Roche, Dominique J. M. Petit dit, Turner, Jake D.
Carbon monoxide was recently reported in the atmosphere of the hot Jupiter WASP-39b using the NIRSpec PRISM transit observation of this planet, collected as part of the JWST Transiting Exoplanet Community Early Release Science (JTEC ERS) Program. Thi
Externí odkaz:
http://arxiv.org/abs/2309.00036
Autor:
Kempton, Eliza M. -R., Zhang, Michael, Bean, Jacob L., Steinrueck, Maria E., Piette, Anjali A. A., Parmentier, Vivien, Malsky, Isaac, Roman, Michael T., Rauscher, Emily, Gao, Peter, Bell, Taylor J., Xue, Qiao, Taylor, Jake, Savel, Arjun B., Arnold, Kenneth E., Nixon, Matthew C., Stevenson, Kevin B., Mansfield, Megan, Kendrew, Sarah, Zieba, Sebastian, Ducrot, Elsa, Dyrek, Achrène, Lagage, Pierre-Olivier, Stassun, Keivan G., Henry, Gregory W., Barman, Travis, Lupu, Roxana, Malik, Matej, Kataria, Tiffany, Ih, Jegug, Fu, Guangwei, Welbanks, Luis, McGill, Peter
There are no planets intermediate in size between Earth and Neptune in our Solar System, yet these objects are found around a substantial fraction of other stars. Population statistics show that close-in planets in this size range bifurcate into two
Externí odkaz:
http://arxiv.org/abs/2305.06240