Zobrazeno 1 - 10
of 50 781
pro vyhledávání: '"Mandell, A"'
Autor:
Latouf, Natasha, Himes, Michael D., Mandell, Avi M., Moore, Michael Dane, Kofman, Vincent, Villanueva, Geronimo L., Stark, Chris
We deploy a newly-generated set of geometric albedo spectral grids to examine the detectability of methane (CH4) in the reflected-light spectrum of an Earth-like exoplanet at visible and near-infrared wavelengths with a future exoplanet imaging missi
Externí odkaz:
http://arxiv.org/abs/2411.15089
Autor:
Kofman, Vincent, Villanueva, Geronimo, Fauchez, Thomas, Mandell, Avi, Johnson, Ted, Payne, Allison, Latouf, Natasha, Kelkar, Soumil
Publikováno v:
The Planetary Science Journal,2024 5 197
The atmospheres and surfaces of planets show tremendous amount of spatial variation, which has a direct effect on the spectrum of the object, even if this may not be spatially resolved. Here, we apply hyper realistic radiative simulations of Earth as
Externí odkaz:
http://arxiv.org/abs/2411.12708
Autor:
Johnson, Ted M, Kelahan, Cameron, Mandell, Avi M., Dhahbi, Ashraf, Hammond, Tobi, Barclay, Thomas, Kostov, Veselin B., Villanueva, Geronimo L.
We present the Variable Star PhasE Curve (VSPEC) Collection, a set of Python packages for simulating combined-light spectroscopic observations of 3-dimensional exoplanet atmospheres in the presence of stellar variability and inhomogeneity. VSPEC uses
Externí odkaz:
http://arxiv.org/abs/2410.21190
Strongly driven ion-scale turbulence in tokamak plasmas is shown to be regulated by a new propagating zonal flow mode, the toroidal secondary, which is nonlinearly supported by the turbulence. The mode grows and propagates due to the combined effects
Externí odkaz:
http://arxiv.org/abs/2409.02283
We introduce algorithms for robustly computing intrinsic coordinates on point clouds. Our approach relies on generating many candidate coordinates by subsampling the data and varying hyperparameters of the embedding algorithm (e.g., manifold learning
Externí odkaz:
http://arxiv.org/abs/2408.01379
We derive, and validate numerically, an analytical model for electron-only magnetic reconnection applicable to strongly magnetized (low-beta) plasmas. Our model predicts sub-ion-scale reconnection rates significantly higher than those pertaining to l
Externí odkaz:
http://arxiv.org/abs/2407.06020
Autor:
Alei, E., Quanz, S. P., Konrad, B. S., Garvin, E. O., Kofman, V., Mandell, A., Angerhausen, D., Mollière, P., Meyer, M. R., Robinson, T., Rugheimer, S., Collaboration, the LIFE
Publikováno v:
A&A 689, A245 (2024)
Following the recommendations to NASA and ESA, the search for life on exoplanets will be a priority in the next decades. Two direct imaging space mission concepts are being developed: the Habitable Worlds Observatory (HWO) and the Large Interferomete
Externí odkaz:
http://arxiv.org/abs/2406.13037
Autor:
MANTA Collaboration, Rutherford, G., Wilson, H. S., Saltzman, A., Arnold, D., Ball, J. L., Benjamin, S., Bielajew, R., de Boucaud, N., Calvo-Carrera, M., Chandra, R., Choudhury, H., Cummings, C., Corsaro, L., DaSilva, N., Diab, R., Devitre, A. R., Ferry, S., Frank, S. J., Hansen, C. J., Jerkins, J., Johnson, J. D., Lunia, P., van de Lindt, J., Mackie, S., Maris, A. D., Mandell, N. R., Miller, M. A., Mouratidis, T., Nelson, A. O., Pharr, M., Peterson, E. E., Rodriguez-Fernandez, P., Segantin, S., Tobin, M., Velberg, A., Wang, A. M., Wigram, M., Witham, J., Paz-Soldan, C., Whyte, D. G.
The MANTA (Modular Adjustable Negative Triangularity ARC-class) design study investigated how negative-triangularity (NT) may be leveraged in a compact, fusion pilot plant (FPP) to take a ``power-handling first" approach. The result is a pulsed, radi
Externí odkaz:
http://arxiv.org/abs/2405.20243
Autor:
Stark, Christopher C., Mennesson, Bertrand, Bryson, Steve, Ford, Eric B., Robinson, Tyler D., Belikov, Ruslan, Bolcar, Matthew R., Feinberg, Lee D., Guyon, Olivier, Latouf, Natasha, Mandell, Avi M., Rauscher, Bernard J., Sirbu, Dan, Tuchow, Noah W.
The Habitable Worlds Observatory (HWO) will seek to detect and characterize potentially Earth-like planets around other stars. To ensure that the mission achieves the Astro2020 Decadal's recommended goal of 25 exoEarth candidates (EECs), we must take
Externí odkaz:
http://arxiv.org/abs/2405.19418
Autor:
Giacomin, M., Dickinson, D., Dorland, W., Mandell, N. R., Bokshi, A., Casson, F. J., Dudding, H. G., Kennedy, D., Patel, B. S., Roach, C. M.
A quasi-linear reduced transport model is developed from a database of high-$\beta$ electromagnetic nonlinear gyrokinetic simulations performed with Spherical Tokamak for Energy Production (STEP) relevant parameters. The quasi-linear model is fully e
Externí odkaz:
http://arxiv.org/abs/2404.17453