Zobrazeno 1 - 10
of 50 557
pro vyhledávání: '"Metcalfe IS"'
Autor:
Metcalfe, Travis S., van Saders, Jennifer L., Huber, Daniel, Buzasi, Derek, Garcia, Rafael A., Stassun, Keivan G., Basu, Sarbani, Breton, Sylvain N., Claytor, Zachary R., Corsaro, Enrico, Nielsen, Martin B., Ong, J. M. Joel, Saunders, Nicholas, Stokholm, Amalie, Bedding, Timothy R.
The solar-type subgiant $\beta$ Hyi has long been studied as an old analog of the Sun. Although the rotation period has never been measured directly, it was estimated to be near 27 days. As a southern hemisphere target it was not monitored by long-te
Externí odkaz:
http://arxiv.org/abs/2408.05482
Autor:
Hon, Marc, Huber, Daniel, Li, Yaguang, Metcalfe, Travis S., Bedding, Timothy R., Ong, Joel, Chontos, Ashley, Rubenzahl, Ryan, Halverson, Samuel, García, Rafael A., Kjeldsen, Hans, Stello, Dennis, Hey, Daniel R., Campante, Tiago, Howard, Andrew W., Gibson, Steven R., Rider, Kodi, Roy, Arpita, Baker, Ashley D., Edelstein, Jerry, Smith, Chris, Fulton, Benjamin J., Walawender, Josh, Brodheim, Max, Brown, Matt, Chan, Dwight, Dai, Fei, Deich, William, Gottschalk, Colby, Grillo, Jason, Hale, Dave, Hill, Grant M., Holden, Bradford, Householder, Aaron, Isaacson, Howard, Ishikawa, Yuzo, Jelinsky, Sharon R., Kassis, Marc, Kaye, Stephen, Laher, Russ, Lanclos, Kyle, Lee, Chien-Hsiu, Lilley, Scott, McCarney, Ben, Miller, Timothy N., Payne, Joel, Petigura, Erik A., Poppett, Claire, Raffanti, Michael, Rockosi, Constance, Sanford, Dale, Schwab, Christian, Shaum, Abby P., Sirk, Martin M., Smith, Roger, Thorne, Jim, Valliant, John, Vandenberg, Adam, Wang, Shin Ywan, Wishnow, Edward, Wold, Truman, Yeh, Sherry, Baker, Ashley, Basu, Sarbani, Bedell, Megan, Burt, Jennifer, Cegla, Heather M., Crossfield, Ian, Dressing, Courtney, Dumusque, Xavier, Ford, Eric, Knutson, Heather, Mawet, Dimitri, O'Meara, John, Stefánsson, Guðmundur, Teske, Johanna, Vasisht, Gautam, Wang, Sharon Xuesong, Weiss, Lauren M., Winn, Joshua N., Wright, Jason T.
Asteroseismology of dwarf stars cooler than the Sun is very challenging due to the low amplitudes and rapid timescales of oscillations. Here, we present the asteroseismic detection of solar-like oscillations at 4-minute timescales ($\nu_{\mathrm{max}
Externí odkaz:
http://arxiv.org/abs/2407.21234
Autor:
Steinhebel, Amanda L., Ott, Jennifer, Kroger, Olivia, Caputo, Regina, Fadeyev, Vitaliy, Affolder, Anthony, Affolder, Kirsten, Deshmukh, Aware, Striebig, Nicolas, Jadhav, Manoj, Suda, Yusuke, Fukazawa, Yasushi, Metcalfe, Jessica, Leys, Richard, Peric, Ivan, Taylor, Shin, Violette, Daniel
The precise reconstruction of Compton-scatter events is paramount for an imaging medium-energy gamma-ray telescope. The proposed AMEGO-X is enabled by a silicon tracker utilizing AstroPix chips - a pixelated silicon HVCMOS sensor novel for space use.
Externí odkaz:
http://arxiv.org/abs/2407.05947
Autor:
Almazan, Earl, Affolder, Anthony, Dyckes, Ian, Fadeyev, Vitaliy, Hance, Michael, Jadhav, Manoj, Kim, Sungjoon, McCoy, Thomas, Metcalfe, Jessica, Nielsen, Jason, Ott, Jennifer, Poley, Luise, Shin, Taylor, Sperlich, Dennis, Sumant, Anirudha V.
Future tracking systems in High Energy Physics experiments will require large instrumented areas with low radiation length. Crystalline silicon sensors have been used in tracking systems for decades, but are difficult to manufacture and costly to pro
Externí odkaz:
http://arxiv.org/abs/2405.18794
Autor:
Bhalotia, Vanshree, Huber, Daniel, van Saders, Jennifer L., Metcalfe, Travis S., Stassun, Keivan G., White, Timothy R., Børsen-Koch, Víctor Aguirre, Ball, Warrick H., Basu, Sarbani, Serenelli, Aldo M., Sawczynec, Erica, Guzik, Joyce A., Howard, Andrew W., Isaacson, Howard
Stellar spin down is a critical yet poorly understood component of stellar evolution. In particular, results from the Kepler Mission imply that mature age, solar-type stars have inefficient magnetic braking, resulting in a stalled spin down rate. How
Externí odkaz:
http://arxiv.org/abs/2405.12362
Autor:
Eisner, Nora L., Grunblatt, Samuel K., Barragán, Oscar, Faridani, Thea H., Lintott, Chris, Aigrain, Suzanne, Johnston, Cole, Mason, Ian R., Stassun, Keivan G., Bedell, Megan, Boyle, Andrew W., Ciardi, David R., Clark, Catherine A., Hebrard, Guillaume, Hogg, David W., Howell, Steve B., Klein, Baptiste, Llama, Joe, Winn, Joshua N., Zhao, Lily L., Murphy, Joseph M. Akana, Beard, Corey, Brinkman, Casey L., Chontos, Ashley, Cortes-Zuleta, Pia, Delfosse, Xavier, Giacalone, Steven, Gilbert, Emily A., Heidari, Neda, Holcomb, Rae, Jenkins, Jon M., Kiefer, Flavien, Lubin, Jack, Martioli, Eder, Polanski, Alex S., Saunders, Nicholas, Seager, Sara, Shporer, Avi, Tyler, Dakotah, Van Zandt, Judah, Alhassan, Safaa, Amratlal, Daval J., Antonel, Lais I., Bentzen, Simon L. S., Bosch, Milton K. D., Bundy, David, Chitsiga, Itayi, Delaunay, Jérôme F., Doisy, Xavier, Ferstenou, Richard, Fynø, Mark, Geary, James M., Haynaly, Gerry, Hermes, Pete, Huten, Marc, Lee, Sam, Metcalfe, Paul, Pennell, Garry J., Puszkarska, Joanna, Schäfer, Thomas, Stiller, Lisa, Tanner, Christopher, Tarr, Allan, Wilkinson, Andrew
Publikováno v:
Published in AJ, 2024
We report on the discovery and validation of a transiting long-period mini-Neptune orbiting a bright (V = 9.0 mag) G dwarf (TOI 4633; R = 1.05 RSun, M = 1.10 MSun). The planet was identified in data from the Transiting Exoplanet Survey Satellite by c
Externí odkaz:
http://arxiv.org/abs/2404.18997
Thin film detectors which incorporate semiconductor materials other than silicon have the potential to build upon their unique material properties and offer advantages such as faster response times, operation at room temperature, and radiation hardne
Externí odkaz:
http://arxiv.org/abs/2404.12497
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:
Metcalfe, George, Santschi, Simon
This paper provides answers to several open problems about equational theories of idempotent semifields. In particular, it is proved that (i) no equational theory of a non-trivial class of idempotent semifields has a finite basis; (ii) there are cont
Externí odkaz:
http://arxiv.org/abs/2402.09876
Autor:
Metcalfe, Travis S., Strassmeier, Klaus G., Ilyin, Ilya V., Buzasi, Derek, Kochukhov, Oleg, Ayres, Thomas R., Basu, Sarbani, Chontos, Ashley, Finley, Adam J., See, Victor, Stassun, Keivan G., van Saders, Jennifer L., Sepulveda, Aldo G., Ricker, George R.
Publikováno v:
Astrophys. J. 960, L6 (2024)
The consistently low activity level of the old solar analog 51 Peg not only facilitated the discovery of the first hot Jupiter, but also led to the suggestion that the star could be experiencing a magnetic grand minimum. However, the 50 year time ser
Externí odkaz:
http://arxiv.org/abs/2401.01944