Zobrazeno 1 - 10
of 1 824
pro vyhledávání: '"Mathur, S. P."'
Autor:
Vrard, M., Pinsonneault, M. H., Elsworth, Y., Hon, M., Kallinger, T., Kuszlewicz, J., Mosser, B., Garcia, R. A., Tayar, J., Bennett, R., Cao, K., Hekker, S., Loyer, L., Mathur, S., Stello, D.
Evolved cool stars have three distinct evolutionary status: shell Hydrogen-burning (RGB), core Helium and shell Hydrogen burning (RC), and double shell burning (AGB). Asteroseismology can distinguish between the RC and the other status, but distingui
Externí odkaz:
http://arxiv.org/abs/2411.03101
Autor:
Lipták, J., Skarka, M., Guenther, E., Chaturvedi, P., Vítková, M., Karjalainen, R., Šubjak, J., Hatzes, A., Bieryla, A., Gandolfi, D., Albrecht, S. H., Beck, P. G., Deeg, H. J., Everett, M. E., Higuera, J., Jones, D., Mathur, S., Patel, Y. G., Persson, C. M., Redfield, S., Kabáth, P.
Precise space-based photometry from the Transiting Exoplanet Survey Satellite results in a huge number of exoplanetary candidates. However, the masses of these objects are unknown and must be determined by ground-based spectroscopic follow-up observa
Externí odkaz:
http://arxiv.org/abs/2408.06897
Autor:
Breton, S. N., Lanza, A. F, Messina, S., Pagano, I., Bugnet, L., Corsaro, E., García, R. A., Mathur, S., Santos, A. R. G, Aigrain, S., Amard, L., Brun, A. S., Degott, L., Noraz, Q., Palakkatharappil, D. B., Panetier, E., Strugarek, A., Belkacem, K., Goupil, M. -J, Ouazzani, R. M., Philidet, J., Renié, C., Roth, O.
The Planetary Transits and Oscillations of stars mission (PLATO) will allow us to measure surface rotation and monitor photometric activity of tens of thousands of main sequence solar-type and subgiant stars. This paper is the first of a series dedic
Externí odkaz:
http://arxiv.org/abs/2407.03709
Autor:
Elías-Chávez, M., Longinotti, A. L., Krongold, Y., Rosa-González, D., Vignali, C., Mathur, S., Miyaji, T., Mayya, Y. D., Nicastro, F.
In this work, we present the results of a detailed X-ray spectral analysis of the brightest AGNs detected in the XMM-Newton 1.75 Ms Ultra Narrow Deep Field. We analyzed 23 AGNs that have a luminosity range of $\sim 10^{42} - 10^{46}\, \rm{erg}\, \rm{
Externí odkaz:
http://arxiv.org/abs/2406.15901
Autor:
Sulis, S., Crossfield, I. J. M., Santerne, A., Saillenfest, M., Sousa, S., Mary, D., Aguichine, A., Deleuil, M., Mena, E. Delgado, Mathur, S., Polanski, A., Adibekyan, V., Boisse, I., Costes, J. C., Cretignier, M., Heidari, N., Lebarbé, C., Forveille, T., Hara, N., Meunier, N., Santos, N., Balcarcel-Salazar, S., Cortés-Zuleta, P., Dalal, S., Gorjian, V., Halverson, S., Howard, A. W., Kosiarek, M. R., Lopez, T. A., Martin, D. V., Mousis, O., Rajkumar, B., Ström, P. A., Udry, S., Venot, O., Willett, E.
Context. Planets with radii of between 2-4 RE closely orbiting solar-type stars are of significant importance for studying the transition from rocky to giant planets. Aims. Our goal is to determine the mass of a transiting planet around the very brig
Externí odkaz:
http://arxiv.org/abs/2405.17155
Autor:
Santos, A. R. G., Godoy-Rivera, D., Finley, A. J., Mathur, S., García, R. A., Breton, S. N., Broomhall, A. -M.
Publikováno v:
FrASS 11 (2024) 1356379
While the mission's primary goal was focused on exoplanet detection and characterization, Kepler made and continues to make extraordinary advances in stellar physics. Stellar rotation and magnetic activity are no exceptions. Kepler allowed for these
Externí odkaz:
http://arxiv.org/abs/2404.15911
Autor:
Gianolli, V. E., Bianchi, S., Petrucci, P-O, Brusa, M., Chartas, G., Lanzuisi, G., Matzeu, G. A., Parra, M., Ursini, F., Behar, E., Bischetti, M., Comastri, A., Costantini, E., Cresci, G., Dadina, M., De Marco, B., De Rosa, A., Fiore, F., Gaspari, M., Gilli, R., Giustini, M., Guainazzi, M., King, A. R., Kraemer, S., Kriss, G., Krongold, Y., La Franca, F., Longinotti, A. L., Luminari, A., Maiolino, R., Marconi, A., Mathur, S., Matt, G., Mehdipour, M., Merloni, A., Middei, R., Miniutti, G., Nardini, E., Panessa, F., Perna, M., Piconcelli, E., Ponti, G., Ricci, F., Serafinelli, R., Tombesi, F., Vignali, C., Zappacosta, L.
Publikováno v:
A&A 687, A235 (2024)
The detection of blue-shifted absorption lines likely associated with ionized Iron K-shell transitions in the X-ray spectra of many Active Galactic Nuclei (AGN) suggests the presence of a highly ionized gas outflowing with mildly relativistic velocit
Externí odkaz:
http://arxiv.org/abs/2403.09538
Symbiotic binaries exhibit a wide range of photometric variability spanning different timescales attributed to orbital motion, intrinsic variability of individual components, or the interaction between the two stars. In the range from minutes to hour
Externí odkaz:
http://arxiv.org/abs/2312.16126
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
Autor:
García, R. A., Gourvès, C., Santos, A. R. G., Strugarek, A., Godoy-Rivera, D., Mathur, S., Delsanti, V., Breton, S. N., Beck, P. G., Brun, A. S., Mathis, S.
In 2013 a dearth of close-in planets around fast-rotating host stars was found using statistical tests on Kepler data. The addition of more Kepler and Transiting Exoplanet Survey Satellite (TESS) systems in 2022 filled this region of the diagram of s
Externí odkaz:
http://arxiv.org/abs/2311.00108