Zobrazeno 1 - 10
of 7 087
pro vyhledávání: '"Visscher, P."'
Embedding techniques allow the efficient description of correlations within localized fragments of large molecular systems, while accounting for their environment at a lower level of theory. We introduce FragPT2: a novel embedding framework that addr
Externí odkaz:
http://arxiv.org/abs/2408.05250
Non-interactive zero-knowledge (NIZK) proofs of knowledge have proven to be highly relevant for securely realizing a wide array of applications that rely on both privacy and correctness. They enable a prover to convince any party of the correctness o
Externí odkaz:
http://arxiv.org/abs/2407.19212
Autor:
Beiler, Samuel A., Mukherjee, Sagnick, Cushing, Michael C., Kirkpatrick, J. Davy, Schneider, Adam C., Kothari, Harshil, Marley, Mark S., Visscher, Channon
The sensitivity and spectral coverage of JWST is enabling us to test our assumptions of ultracool dwarf atmospheric chemistry, especially with regards to the abundances of phosphine (PH$_3$) and carbon dioxide (CO$_2$). In this paper, we use NIRSpec
Externí odkaz:
http://arxiv.org/abs/2407.15950
Autor:
Phillips, Caprice L., Faherty, Jacqueline K., Burningham, Ben, Vos, Johanna M., Gonzales, Eileen, Griffith, Emily J., Merchan, Sherelyn Alejandro, Calamari, Emily, Visscher, Channon, Morley, Caroline V., Whiteford, Niall, Gaarn, Josefine, Ilyin, Ilya, Strassmeier, Klaus
We present an atmospheric retrieval analysis on a set of young, cloudy, red L-dwarfs -- CWISER J124332.12+600126.2 and WISEP J004701.06+680352.1 -- using the \textit{Brewster} retrieval framework. We also present the first elemental abundance measure
Externí odkaz:
http://arxiv.org/abs/2407.01694
Autor:
Halpern, Bence Mark, Tienkamp, Thomas, Huang, Wen-Chin, Violeta, Lester Phillip, Rebernik, Teja, de Visscher, Sebastiaan, Witjes, Max, Wieling, Martijn, Abur, Defne, Toda, Tomoki
This study investigates how surgical intervention for speech pathology (specifically, as a result of oral cancer surgery) impacts the performance of an automatic speaker verification (ASV) system. Using two recently collected Dutch datasets with para
Externí odkaz:
http://arxiv.org/abs/2406.06208
Heavy atom compounds represent a challenge for computational chemistry, due to the need for simultaneous treatment of relativistic and correlation effects. Often such systems exhibit also strong correlation which hampers the application of perturbati
Externí odkaz:
http://arxiv.org/abs/2403.18473
Autor:
Morley, Caroline V., Mukherjee, Sagnick, Marley, Mark S., Fortney, Jonathan J., Visscher, Channon, Lupu, Roxana, Gharib-Nezhad, Ehsan, Thorngren, Daniel, Freedman, Richard
We present a new grid of cloudy atmosphere and evolution models for substellar objects. These models include the effect of refractory cloud species, including silicate clouds, on the spectra and evolution. We include effective temperatures from 900 t
Externí odkaz:
http://arxiv.org/abs/2402.00758
Autor:
Mukherjee, Sagnick, Fortney, Jonathan J., Morley, Caroline V., Batalha, Natasha E., Marley, Mark S., Karalidi, Theodora, Visscher, Channon, Lupu, Roxana, Freedman, Richard, Gharib-Nezhad, Ehsan
Publikováno v:
The Astrophysical Journal, Volume 963, Issue 1, id.73, 26 pp, March 2024
Disequilibrium chemistry due to vertical mixing in the atmospheres of many brown dwarfs and giant exoplanets is well-established. Atmosphere models for these objects typically parameterize mixing with the highly uncertain $K_{\rm zz}$ diffusion param
Externí odkaz:
http://arxiv.org/abs/2402.00756
Autor:
Calamari, Emily, Faherty, Jacqueline K., Visscher, Channon, Gemma, Marina E., Burningham, Ben, Rothermich, Austin
We present results from conducting a theoretical chemical analysis of a sample of benchmark companion brown dwarfs whose primary star is of type F, G or K. We summarize the entire known sample of these types of companion systems, termed "compositiona
Externí odkaz:
http://arxiv.org/abs/2401.11038
Autor:
Grant, David, Lewis, Nikole K., Wakeford, Hannah R., Batalha, Natasha E., Glidden, Ana, Goyal, Jayesh, Mullens, Elijah, MacDonald, Ryan J., May, Erin M., Seager, Sara, Stevenson, Kevin B., Valenti, Jeff A., Visscher, Channon, Alderson, Lili, Allen, Natalie H., Cañas, Caleb I., Colón, Knicole, Clampin, Mark, Espinoza, Néstor, Gressier, Amélie, Huang, Jingcheng, Lin, Zifan, Long, Douglas, Louie, Dana R., Peña-Guerrero, Maria, Ranjan, Sukrit, Sotzen, Kristin S., Valentine, Daniel, Anderson, Jay, Balmer, William O., Bellini, Andrea, Hoch, Kielan K. W., Kammerer, Jens, Libralato, Mattia, Mountain, C. Matt, Perrin, Marshall D., Pueyo, Laurent, Rickman, Emily, Rebollido, Isabel, Sohn, Sangmo Tony, van der Marel, Roeland P., Watkins, Laura L.
Clouds are prevalent in many of the exoplanet atmospheres that have been observed to date. For transiting exoplanets, we know if clouds are present because they mute spectral features and cause wavelength-dependent scattering. While the exact composi
Externí odkaz:
http://arxiv.org/abs/2310.08637