Zobrazeno 1 - 10
of 144
pro vyhledávání: '"Lothringer, Joshua D"'
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:
Iskandarli, Leyla, Farihi, Jay, Lothringer, Joshua D., Parsons, Steven G., De Marco, Orsola, Rauch, Thomas
The Helix is a visually striking and the nearest planetary nebula, yet any companions responsible for its asymmetric morphology have yet to be identified. In 2020, low-amplitude photometric variations with a periodicity of 2.8 d were reported based o
Externí odkaz:
http://arxiv.org/abs/2410.03288
Autor:
French, Jenni R., Casewell, Sarah L., Amaro, Rachael C., Lothringer, Joshua D., Mayorga, L. C., Littlefair, Stuart P., Lew, Ben W. P., Zhou, Yifan, Apai, Daniel, Marley, Mark S., Parmentier, Vivien, Tan, Xianyu
Due to their short orbital periods and relatively high flux ratios, irradiated brown dwarfs in binaries with white dwarfs offer better opportunities to study irradiated atmospheres than hot Jupiters, which have lower planet-to-star flux ratios. WD103
Externí odkaz:
http://arxiv.org/abs/2409.06874
Autor:
Carter, Aarynn L., Alam, Munazza. K., Beatty, Thomas, Casewell, Sarah, Chubb, Katy L., Hoch, Kielan, Lewis, Nikole, Lothringer, Joshua D., Manjavacas, Elena, Moran, Sarah E., Wakeford, Hannah R.
We advocate for further prioritisation of atmospheric characterisation observations of high mass transiting exoplanets and brown dwarfs. This population acts as a unique comparative sample to the directly imaged exoplanet and brown dwarf populations,
Externí odkaz:
http://arxiv.org/abs/2408.07723
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:
Lothringer, Joshua D., Zhou, Yifan, Apai, Daniel, Tan, Xianyu, Parmentier, Vivien, Casewell, Sarah L.
We present an atmospheric retrieval analysis of HST/WFC3/G141 spectroscopic phase curve observations of two brown dwarfs, WD-0137B and EPIC-2122B, in ultra-short period orbits around white dwarf hosts. These systems are analogous to hot and ultra-hot
Externí odkaz:
http://arxiv.org/abs/2404.16813
Autor:
Amaro, Rachael C., Apai, Daniel, Lew, Ben W. P., Zhou, Yifan, Lothringer, Joshua D., Casewell, Sarah L., Tan, Xianyu, Barman, Travis, Marley, Mark S., Mayorga, L. C., Parmentier, Vivien
Brown dwarfs in ultra-short period orbits around white dwarfs offer a unique opportunity to study the properties of tidally-locked, fast rotating (1-3 hr), and highly-irradiated atmospheres. Here, we present phase-resolved spectrophotometry of the wh
Externí odkaz:
http://arxiv.org/abs/2404.08087
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
Autor:
Kirk, James, Stevenson, Kevin B., Fu, Guangwei, Lustig-Yaeger, Jacob, Moran, Sarah E., Peacock, Sarah, Alam, Munazza K., Batalha, Natasha E., Bennett, Katherine A., Gonzalez-Quiles, Junellie, López-Morales, Mercedes, Lothringer, Joshua D., MacDonald, Ryan J., May, E. M., Mayorga, L. C., Rustamkulov, Zafar, Sing, David K., Sotzen, Kristin S., Valenti, Jeff A., Wakeford, Hannah R.
We present a JWST/NIRCam transmission spectrum from $3.9-5.0$ $\mu$m of the recently-validated sub-Earth GJ 341b ($\mathrm{R_P} = 0.92$ $\mathrm{R_{\oplus}}$, $\mathrm{T_{eq}} = 540$ K) orbiting a nearby bright M1 star ($\mathrm{d} = 10.4$ pc, $\math
Externí odkaz:
http://arxiv.org/abs/2401.06043
Autor:
Reggiani, Henrique, Galarza, Jhon Yana, Schlaufman, Kevin C., Sing, David K., Healy, Brian F., McWilliam, Andrew, Lothringer, Joshua D., Pueyo, Laurent
It has been suggested that $\beta$ Pic b has a supersolar metallicity and subsolar C/O ratio. Assuming solar carbon and oxygen abundances for the star $\beta$ Pic and therefore the planet's parent protoplanetary disk, $\beta$ Pic b's C/O ratio sugges
Externí odkaz:
http://arxiv.org/abs/2311.12210