Zobrazeno 1 - 10
of 1 735
pro vyhledávání: '"Chaplin A J"'
Autor:
Pinsonneault, Marc H., Zinn, Joel C., Tayar, Jamie, Serenelli, Aldo, Garcia, Rafael A., Mathur, Savita, Vrard, Mathieu, Elsworth, Yvonne P., Mosser, Benoit, Stello, Dennis, Bell, Keaton J., Bugnet, Lisa, Corsaro, Enrico, Gaulme, Patrick, Hekker, Saskia, Hon, Marc, Huber, Daniel, Kallinger, Thomas, Cao, Kaili, Johnson, Jennifer A., Liagre, Bastien, Patton, Rachel A., Santos, Angela R. G., Basu, Sarbani, Beck, Paul G., Beers, Timothy C., Chaplin, William J., Cunha, Katia, Frinchaboy, Peter M., Girardi, Leo, Godoy-Rivera, Diego, Holtzman, Jon A., Jonsson, Henrik, Meszaros, Szabolcs, Reyes, Claudia, Rix, Hans-Walter, Shetrone, Matthew, Smith, Verne V., Spoo, Taylor, Stassun, Keivan G., Wang, Ji
In the third APOKASC catalog, we present data for the complete sample of 15,808 evolved stars with APOGEE spectroscopic parameters and Kepler asteroseismology. We used ten independent asteroseismic analysis techniques and anchor our system on fundame
Externí odkaz:
http://arxiv.org/abs/2410.00102
Autor:
Hatt, Emily J., Ong, J. M. Joel, Nielsen, Martin B., Chaplin, William J., Davies, Guy R., Deheuvels, Sébastien, Ballot, Jérôme, Li, Gang, Bugnet, Lisa
Red Giant stars host solar-like oscillations which have mixed character, being sensitive to conditions both in the outer convection zone and deep within the interior. The properties of these modes are sensitive to both core rotation and magnetic fiel
Externí odkaz:
http://arxiv.org/abs/2409.01157
Autor:
Lund, Mikkel N., Basu, Sarbani, Bieryla, Allyson, Casagrande, Luca, Huber, Daniel, Hekker, Saskia, Viani, Lucas, Davies, Guy R., Campante, Tiago L., Chaplin, William J., Serenelli, Aldo M., Ong, J. M. Joel, Ball, Warrick H., Stokholm, Amalie, Bellinger, Earl P., Bazot, Michaël, Stello, Dennis, Latham, David W., White, Timothy R., Sayeed, Maryum, Børsen-Koch, Víctor Aguirre, Chontos, Ashley
The KEYSTONE project aims to enhance our understanding of solar-like oscillators by delivering a catalogue of global asteroseismic parameters (${\Delta\nu}$ and ${\nu_{\rm max}}$) for 173 stars, comprising mainly dwarfs and subgiants, observed by the
Externí odkaz:
http://arxiv.org/abs/2405.15919
Autor:
Campante, T. L., Kjeldsen, H., Li, Y., Lund, M. N., Silva, A. M., Corsaro, E., da Silva, J. Gomes, Martins, J. H. C., Adibekyan, V., Silva, T. Azevedo, Bedding, T. R., Bossini, D., Buzasi, D. L., Chaplin, W. J., Costa, R. R., Cunha, M. S., Cristo, E., Faria, J. P., García, R. A., Huber, D., Lundkvist, M. S., Metcalfe, T. S., Monteiro, M. J. P. F. G., Neitzel, A. W., Nielsen, M. B., Poretti, E., Santos, N. C., Sousa, S. G.
Publikováno v:
A&A, 683, L16 (2024)
Fuelled by space photometry, asteroseismology is vastly benefitting the study of cool main-sequence stars, which exhibit convection-driven solar-like oscillations. Even so, the tiny oscillation amplitudes in K dwarfs continue to pose a challenge to s
Externí odkaz:
http://arxiv.org/abs/2403.16333
Autor:
Coelho, H. R., Miglio, A., Morel, T., Lagarde, N., Bossini, D., Chaplin, W. J., Degl'Innocenti, S., Dell'Omodarme, M., Garcia, R. A., Handberg, R., Hekker, S., Huber, D., Lund, M. N., Mathur, S., Moroni, P. G. Prada, Mosser, B., Serenelli, A., Rainer, M., Nascimento Jr., J. D. do, Poretti, E., Mathias, P., Valle, G., Tio, P. Dal, Duarte, T.
Photometric time series gathered by space telescopes such as CoRoT and Kepler allow to detect solar-like oscillations in red-giant stars and to measure their global seismic constraints, which can be used to infer global stellar properties (e.g. masse
Externí odkaz:
http://arxiv.org/abs/2312.11233
We present solar low-degree rotational splitting values based on a new analysis of Sun-as-a-star observations from the Birmingham Solar Oscillations Network, covering a 16,425-day period from 1976 December 31--2021 December 20 with a duty cycle of 57
Externí odkaz:
http://arxiv.org/abs/2309.02972
To detect Earth-mass planets using the Doppler method, a major obstacle is to differentiate the planetary signal from intrinsic stellar variability (e.g., pulsations, granulation, spots and plages). Convective blueshift, which results from small-scal
Externí odkaz:
http://arxiv.org/abs/2307.06986
Autor:
Huber, Daniel, Pinsonneault, Marc, Beck, Paul, Bedding, Timothy R., Bland-Hawthorn, Joss, Breton, Sylvain N., Bugnet, Lisa, Chaplin, William J., Garcia, Rafael A., Grunblatt, Samuel K., Guzik, Joyce A., Hekker, Saskia, Kawaler, Steven D., Mathis, Stephane, Mathur, Savita, Metcalfe, Travis, Mosser, Benoit, Ness, Melissa K., Piro, Anthony L., Serenelli, Aldo, Sharma, Sanjib, Soderblom, David R., Stassun, Keivan G., Stello, Dennis, Tayar, Jamie, van Belle, Gerard T., Zinn, Joel C.
Asteroseismology has transformed stellar astrophysics. Red giant asteroseismology is a prime example, with oscillation periods and amplitudes that are readily detectable with time-domain space-based telescopes. These oscillations can be used to infer
Externí odkaz:
http://arxiv.org/abs/2307.03237
Autor:
Hon, Marc, Huber, Daniel, Rui, Nicholas Z., Fuller, Jim, Veras, Dimitri, Kuszlewicz, James S., Kochukhov, Oleg, Stokholm, Amalie, Rørsted, Jakob Lysgaard, Yıldız, Mutlu, Orhan, Zeynep Çelik, Örtel, Sibel, Jiang, Chen, Hey, Daniel R., Isaacson, Howard, Zhang, Jingwen, Vrard, Mathieu, Stassun, Keivan G., Shappee, Benjamin J., Tayar, Jamie, Claytor, Zachary R., Beard, Corey, Bedding, Timothy R., Brinkman, Casey, Campante, Tiago L., Chaplin, William J., Chontos, Ashley, Giacalone, Steven, Holcomb, Rae, Howard, Andrew W., Lubin, Jack, MacDougall, Mason, Montet, Benjamin T., Murphy, Joseph M. A., Ong, Joel, Pidhorodetska, Daria, Polansk, Alex S., Rice, Malena, Stello, Dennis, Tyler, Dakotah, Van Zandt, Judah, Weiss, Lauren
When main-sequence stars expand into red giants, they are expected to engulf close-in planets. Until now, the absence of planets with short orbital periods around post-expansion, core-helium-burning red giants has been interpreted as evidence that sh
Externí odkaz:
http://arxiv.org/abs/2306.15877
Autor:
Nielsen, M. B., Davies, G. R., Chaplin, W. J., Ball, W. H, Ong, J. M. J., Hatt, E., Jones, B. P., Logue, M.
Publikováno v:
A&A 676, A117 (2023)
The asteroseismic analysis of stellar power density spectra is often computationally expensive. The models used in the analysis may use several dozen parameters to accurately describe features in the spectra caused by oscillation modes and surface gr
Externí odkaz:
http://arxiv.org/abs/2306.13577