Zobrazeno 1 - 10
of 3 312
pro vyhledávání: '"Trifonov, A. P."'
Autor:
Trifonov, Trifon
The precise Doppler method for measuring stellar radial velocities (RV) is a fundamental technique in modern astronomy. This method records a star's spectrum and detects periodic Doppler shifts in its spectral features, which indicate the gravitation
Externí odkaz:
http://arxiv.org/abs/2410.11424
Autor:
Saunders, Nicholas, Grunblatt, Samuel K., Huber, Daniel, Ong, J. M. Joel, Schlaufman, Kevin C., Hey, Daniel, Li, Yaguang, Butler, R. P., Crane, Jeffrey D., Shectman, Steve, Teske, Johanna K., Quinn, Samuel N., Yee, Samuel W., Brahm, Rafael, Trifonov, Trifon, Jordán, Andrés, Henning, Thomas, Sing, David K., MacGregor, Meredith, Page, Emma, Rapetti, David, Falk, Ben, Levine, Alan M., Huang, Chelsea X., Lund, Michael B., Ricker, George R., Seager, S., Winn, Joshua N., Jenkins, Jon M.
We present the discovery of TOI-7041 b (TIC 201175570 b), a hot Saturn transiting a red giant star with measurable stellar oscillations. We observe solar-like oscillations in TOI-7041 with a frequency of maximum power of $\nu_{\rm max} = 218.50\pm2.2
Externí odkaz:
http://arxiv.org/abs/2410.11037
Autor:
Carleo, Ilaria, Barrágan, Oscar, Persson, Carina M., Fridlund, Malcolm, Lam, Kristine W. F., Messina, Sergio, Gandolfi, Davide, Smith, Alexis M. S., Johnson, Marshall C., Cochran, William, Osborn, Hannah L. M., Brahm, Rafael, Ciardi, David R., Collins, Karen A., Everett, Mark E., Giacalone, Steven, Guenther, Eike W., Hatzes, Artie, Hellier, Coel, Kabáth, Jonathan Horner Petr, Korth, Judith, MacQueen, Phillip, Masseron, Thomas, Murgas, Felipe, Nowak, Grzegorz, Rodriguez, Joseph E., Watkins, Cristilyn N., Wittenmyer, Rob, Zhou, George, Ziegler, Carl, Bieryla, Allyson, Boyd, Patricia T., Clark, Catherine A., Dressing, Courtney D., Eastman, Jason D., Eberhardt, Jan, Endl, Michael, Espinoza, Nestor, Fausnaugh, Michael, Guerrero, Natalia M., Henning, Thomas, Hesse, Katharine, Hobson, Melissa J., Howell, Steve B., Jordán, Andrés, Latham, David W., Lund, Michael B., Mireles, Ismael, Narita, Norio, Pinto, Marcelo Tala, Pugh, Teznie, Quinn, Samuel N., Ricker, George, Rodriguez, David R., Rojas, Felipe I., Rose, Mark E., Rudat, Alexander, Sarkis, Paula, Savel, Arjun B., Schlecker, Martin, Schwarz, Richard P., Seager, Sara, Shporer, Avi, Smith, Jeffrey C., Stassun, Keivan G., Stockdale, Chris, Trifonov, Trifon, Vanderspek, Roland, Winn, Joshua N., Wright, Duncan
Hot and warm Jupiters might have undergone the same formation and evolution path, but the two populations exhibit different distributions of orbital parameters, challenging our understanding on their actual origin. The present work, which is the resu
Externí odkaz:
http://arxiv.org/abs/2408.05612
Autor:
Henderson, Beth A., Casewell, Sarah L., Jordán, Andrés, Brahm, Rafael, Henning, Thomas, Gill, Samuel, Mayorga, L. C., Ziegler, Carl, Stassun, Keivan G., Goad, Michael R., Acton, Jack, Alves, Douglas R., Anderson, David R., Apergis, Ioannis, Armstrong, David J., Bayliss, Daniel, Burleigh, Matthew R., Dragomir, Diana, Gillen, Edward, Günther, Maximilian N., Hedges, Christina, Hesse, Katharine M., Hobson, Melissa J., Jenkins, James S., Jenkins, Jon M., Kendall, Alicia, Lendl, Monika, Lund, Michael B., McCormac, James, Moyano, Maximiliano, Osborn, Ares, Pinto, Marcelo Tala, Ramsay, Gavin, Rapetti, David, Saha, Suman, Seager, Sara, Trifonov, Trifon, Udry, Stéphane, Vines, Jose I., West, Richard G., Wheatley, Peter J., Winn, Joshua N., Zivave, Tafadzwa
We report the discovery of the most eccentric transiting brown dwarf in the brown dwarf desert, TOI02490b. The brown dwarf desert is the lack of brown dwarfs around main sequence stars within $\sim3$~AU and is thought to be caused by differences in f
Externí odkaz:
http://arxiv.org/abs/2408.04475
Autor:
von Stauffenberg, A., Trifonov, T., Quirrenbach, A., Reffert, S., Kaminski, A., Dreizler, S., Ribas, I., Reiners, A., Kürster, M., Twicken, J. D., Rapetti, D., Caballero, J. A., Amado, P. J., Béjar, V. J. S., Cifuentes, C., Góngora, S., Hatzes, A. P., Henning, Th., Montes, D., Morales, J. C., Schweitzer, A.
GJ 581 is a nearby M dwarf known to host a packed multiple planet system with 2 super-Earths and a Neptune-mass planet. We present new orbital analyses of the system, utilizing recent RV data obtained from the CARMENES spectrograph combined with newl
Externí odkaz:
http://arxiv.org/abs/2407.11520
We present ConDiff, a novel dataset for scientific machine learning. ConDiff focuses on the diffusion equation with varying coefficients, a fundamental problem in many applications of parametric partial differential equations (PDEs). The main novelty
Externí odkaz:
http://arxiv.org/abs/2406.04709
Large linear systems are ubiquitous in modern computational science. The main recipe for solving them is iterative solvers with well-designed preconditioners. Deep learning models may be used to precondition residuals during iteration of such linear
Externí odkaz:
http://arxiv.org/abs/2405.15557
Autor:
Gill, Samuel, Bayliss, Daniel, Ulmer-Moll, Solène, Wheatley, Peter J., Brahm, Rafael, Anderson, David R., Armstrong, David, Apergis, Ioannis, Alves, Douglas R., Burleigh, Matthew R., Butler, R. P., Bouchy, François, Battley, Matthew P., Bryant, Edward M., Bieryla, Allyson, Crane, Jeffrey D., Collins, Karen A., Casewell, Sarah L., Carleo, Ilaria, Claringbold, Alastair B., Dalba, Paul A., Dragomir, Diana, Eigmüller, Philipp, Eberhardt, Jan, Fausnaugh, Michael, Günther, Maximilian N., Grieves, Nolan, Goad, Michael R., Gillen, Edward, Hagelberg, Janis, Hobson, Melissa, Hedges, Christina, Henderson, Beth A., Hawthorn, Faith, Henning, Thomas, Jones, Matías I., Jordán, Andrés, Jenkins, James S., Kunimoto, Michelle, Krenn, Andreas F., Kendall, Alicia, Lendl, Monika, McCormac, James, Moyano, Maximiliano, Torres-Miranda, Pascal, Nielsen, Louise D., Osborn, Ares, Otegi, Jon, Osborn, Hugh, Quinn, Samuel N., Rodriguez, Joseph E., Ramsay, Gavin, Schlecker, Martin, Shectman, Stephen A., Seager, Sara, Tilbrook, Rosanna H., Trifonov, Trifon, Teske, Johanna K., Udry, Stephane, Vines, Jose I., West, Richard R., Wohler, Bill, Winn, Joshua N., Wang, Sharon X., Zhou, George, Zivave, Tafadzwa
Discovering transiting exoplanets with relatively long orbital periods ($>$10 days) is crucial to facilitate the study of cool exoplanet atmospheres ($T_{\rm eq} < 700 K$) and to understand exoplanet formation and inward migration further out than ty
Externí odkaz:
http://arxiv.org/abs/2405.07367
Autor:
Grisard, Stefan, Trifonov, Artur V., Hahn, Thilo, Kuhn, Tilmann, Hordiichuk, Oleh, Kovalenko, Maksym V., Yakovlev, Dmitri R., Bayer, Manfred, Akimov, Ilya A.
We investigate the two-pulse photon echo response of excitons in the mixed lead halide perovskite crystal \sample in dependence on the excitation intensity and polarization of the incident laser pulses. Using spectrally narrow picosecond laser pulses
Externí odkaz:
http://arxiv.org/abs/2404.09044
Autor:
Kalchevski, Dobromir A., Trifonov, Dimitar V., Kolev, Stefan K., Popov, Valentin N., Aleksandrov, Hristiyan A., Milenov, Teodor I.
We present a computational study of assembling carbon clusters and nanophases in space from carbon aggregations. Geometry optimizations and Density-functional-based tight-binding (SCC-DFTB) dynamics methods are employed to predict carbon clusters, th
Externí odkaz:
http://arxiv.org/abs/2404.00096