Zobrazeno 1 - 10
of 144
pro vyhledávání: '"Powell, Diana"'
Autor:
Espinoza, Néstor, Steinrueck, Maria E., Kirk, James, MacDonald, Ryan J., Savel, Arjun B., Arnold, Kenneth, Kempton, Eliza M. -R., Murphy, Matthew M., Carone, Ludmila, Zamyatina, Maria, Lewis, David A., Samra, Dominic, Kiefer, Sven, Rauscher, Emily, Christie, Duncan, Mayne, Nathan, Helling, Christiane, Rustamkulov, Zafar, Parmentier, Vivien, May, Erin M., Carter, Aarynn L., Zhang, Xi, López-Morales, Mercedes, Allen, Natalie, Blecic, Jasmina, Decin, Leen, Mancini, Luigi, Molaverdikhani, Karan, Rackham, Benjamin V., Palle, Enric, Tsai, Shang-Min, Ahrer, Eva-Maria, Bean, Jacob L., Crossfield, Ian J. M., Haegele, David, Hébrard, Eric, Kreidberg, Laura, Powell, Diana, Schneider, Aaron D., Welbanks, Luis, Wheatley, Peter, Brahm, Rafael, Crouzet, Nicolas
Transmission spectroscopy has been a workhorse technique over the past two decades to constrain the physical and chemical properties of exoplanet atmospheres. One of its classical key assumptions is that the portion of the atmosphere it probes -- the
Externí odkaz:
http://arxiv.org/abs/2407.10294
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:
Kirk, James, Ahrer, Eva-Maria, Penzlin, Anna B. T., Owen, James E., Booth, Richard A., Alderson, Lili, Christie, Duncan A., Claringbold, Alastair B., Esparza-Borges, Emma, Fisher, Chloe E., López-Morales, Mercedes, Mayne, N. J., McCormack, Mason, Meech, Annabella, Panwar, Vatsal, Powell, Diana, Taylor, Jake, Sergeev, Denis E., Valentine, Daniel, Wakeford, Hannah R., Wheatley, Peter J., Zamyatina, Maria
A primary objective of exoplanet atmosphere characterisation is to learn about planet formation and evolution, however, this is challenged by degeneracies. To determine whether differences in atmospheric composition can be reliably traced to differen
Externí odkaz:
http://arxiv.org/abs/2407.03198
Autor:
Penzlin, Anna B. T., Booth, Richard A., Kirk, James, Owen, James E., Ahrer, Eva-Maria, Christie, Duncan A., Claringbold, Alastair B., Esparza-Borges, Emma, López-Morales, M., Mayne, N. J., McCormack, Mason, Meech, Annabella, Panwar, Vatsal, Powell, Diana, Sergeev, Denis E., Taylor, Jake, Wheatley, Peter J., Zamyatina, Maria
Hot Jupiters present a unique opportunity for measuring how planet formation history shapes present-day atmospheric composition. However, due to the myriad pathways influencing composition, a well-constructed sample of planets is needed to determine
Externí odkaz:
http://arxiv.org/abs/2407.03199
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:
Powell, Diana, Zhang, Xi
We present a new two-dimensional, bin-scheme microphysical model of cloud formation in the atmospheres of hot Jupiters that includes the effects of longitudinal gas and cloud transport. We predict cloud particle size distributions as a function of pl
Externí odkaz:
http://arxiv.org/abs/2404.08759
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
We present a semi-analytic model for the growth, drift, desorption, and fragmentation of millimeter- to meter-sized particles in protoplanetary disks. Fragmentation occurs where particle collision velocities exceed critical fragmentation velocities.
Externí odkaz:
http://arxiv.org/abs/2311.04286
Autor:
Lach, Mackenzie, Sallum, Steph, Banyal, Ravinder, Batalha, Natalie, Blake, Geoff, Brandt, Tim, Briesemeister, Zackery, Desai, Aditi, Eisner, Josh, Fong, Wen-fai, Greene, Tom, Honda, Mitsuhiko, Kain, Isabel, Kilpatrick, Charlie, de Kleer, Katherine, Liu, Michael, Macintosh, Bruce, Martinez, Raquel, Mawet, Dimitri, Miles, Brittany, Morley, Caroline, de Pater, Imke, Powell, Diana, Sheehan, Patrick, Skemer, Andrew, Spilker, Justin, Stelter, Deno, Stone, Jordan, Surya, Arun, Thirupathi, Sivarani, Wagner, Kevin, Zhou, Yifan
Publikováno v:
SPIE Proceedings Volume 12680, Techniques and Instrumentation for Detection of Exoplanets XI; 1268024 (2023)
The Slicer Combined with Array of Lenslets for Exoplanet Spectroscopy (SCALES) instrument is a lenslet-based integral field spectrograph that will operate at 2 to 5 microns, imaging and characterizing colder (and thus older) planets than current high
Externí odkaz:
http://arxiv.org/abs/2310.12483
Autor:
Desai, Aditi, Sallum, Stephanie E., Banyal, Ravinder, Batalha, Natalie, Batalha, Natasha, Blake, Geoff, Brandt, Tim, Briesemeister, Zack, de Kleer, Katherine, de Pater, Imke, Eisner, Josh, Fong, Wen-fai, Greene, Tom, Honda, Mitsuhiko, Kain, Isabel, Kilpatrick, Charlie, Lach, Mackenzie, Liu, Mike, Macintosh, Bruce, Martinez, Raquel A., Mawet, Dimitri, Miles, Brittany, Morley, Caroline, Powell, Diana, Sheehan, Patrick, Skemer, Andrew J., Spilker, Justin, Stelter, R. Deno, Stone, Jordan, Surya, Arun, Thirupathi, Sivarani, Wagner, Kevin, Zhou, Yifan
SCALES (Slicer Combined with Array of Lenslets for Exoplanet Spectroscopy) is a 2 - 5 micron high-contrast lenslet-based integral field spectrograph (IFS) designed to characterize exoplanets and their atmospheres. The SCALES medium-spectral-resolutio
Externí odkaz:
http://arxiv.org/abs/2310.12193