Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Sreenivas, K. R."'
Autor:
Crawford, Courtney L., Bedding, Timothy R., Li, Yaguang, Stello, Dennis, Huber, Daniel, Yu, Jie, Sreenivas, K. R., Li, Tanda, Kerrison, Emily F.
When low- and intermediate-mass stars evolve off the main sequence, they expand and cool into the red giant stages of evolution, which include those associated with shell H burning (the red giant branch), core He burning (the red clump), and shell He
Externí odkaz:
http://arxiv.org/abs/2402.07380
Autor:
Sreenivas, K. R., Bedding, Timothy R., Li, Yaguang, Huber, Daniel, Crawford, Courtney L., Stello, Dennis, Yu, Jie
The importance of numax (the frequency of maximum oscillation power) for asteroseismology has been demonstrated widely in the previous decade, especially for red giants. With the large amount of photometric data from CoRoT, Kepler and TESS, several a
Externí odkaz:
http://arxiv.org/abs/2401.17557
Autor:
Li, Gang, Aerts, Conny, Bedding, Timothy R., Fritzewski, Dario J., Murphy, Simon J., Van Reeth, Timothy, Montet, Benjamin T., Jian, Mingjie, Mombarg, Joey S. G., Gossage, Seth, Sreenivas, K. R.
Publikováno v:
A&A 686, A142 (2024)
Asteroseismic modelling of isolated star presents significant challenges due to the difficulty in accurately determining stellar parameters, particularly the stellar age. These challenges can be overcomed by observing stars in open clusters, whose co
Externí odkaz:
http://arxiv.org/abs/2311.16991
Magnetic activity is currently the primary limiting factor in radial velocity (RV) exoplanet searches. Even inactive stars, such as the Sun, exhibit RV jitter of the order of a few ms$^{-1}$ due to active regions on their surfaces. Time series of chr
Externí odkaz:
http://arxiv.org/abs/2311.12438
Autor:
Palle, E., Orell-Miquel, J., Brady, M., Bean, J., Hatzes, A. P., Morello, G., Morales, J. C., Murgas, F., Molaverdikhani, K., Parviainen, H., Sanz-Forcada, J., Béjar, V. J. S., Caballero, J. A., Sreenivas, K. R., Schlecker, M., Ribas, I., Perdelwitz, V., Tal-Or, L., Pérez-Torres, M., Luque, R., Dreizler, S., Fuhrmeister, B., Aceituno, F., Amado, P. J., Anglada-Escudé, G., Caldwell, D. A., Charbonneau, D., Cifuentes, C., de Leon, J. P., Collins, K. A., Dufoer, S., Espinoza, N., Essack, Z., Fukui, A., Chew, Y. Gómez Maqueo, Gómez-Muñoz, M. A., Henning, Th., Herrero, E., Jeffers, S. V., Jenkins, J., Kaminski, A., Kasper, J., Kunimoto, M., Latham, D., Lillo-Box, J., López-González, M. J., Montes, D., Mori, M., Narita, N., Quirrenbach, A., Pedraz, S., Reiners, A., Rodríguez, E., Rodríguez-López, C., Sabin, L., Schanche, N., Schwarz, R-P., Schweitzer, A., Seifahrt, A., Stefansson, G., Sturmer, J., Trifonov, T., Vanaverbeke, S., Wells, R. D., Zapatero-Osorio, M. R., Zechmeister, M.
Publikováno v:
A&A 678, A80 (2023)
One of the main scientific goals of the TESS mission is the discovery of transiting small planets around the closest and brightest stars in the sky. Here, using data from the CARMENES, MAROON-X, and HIRES spectrographs, together with TESS, we report
Externí odkaz:
http://arxiv.org/abs/2301.06873
After the sunset, under calm and clear sky conditions, aerosol laden surface air-layer, cools radiatively to the upper atmosphere. Predominant effect of the radiative cooling on the vertical temperature profile extends to several hundred meters from
Externí odkaz:
http://arxiv.org/abs/2209.13185
Autor:
Caballero, J. A., Gonzalez-Alvarez, E., Brady, M., Trifonov, T., Ellis, T. G., Dorn, C., Cifuentes, C., Molaverdikhani, K., Bean, J. L., Boyajian, T., Rodriguez, E., Sanz-Forcada, J., Osorio, M. R. Zapatero, Abia, C., Amado, P. J., Anugu, N., Bejar, V. J. S., Davies, C. L., Dreizler, S., Dubois, F., Ennis, J., Espinoza, N., Farrington, C. D., Lopez, A. Garcia, Gardner, T., Hatzes, A. P., Henning, Th., Herrero, E., Herrero-Cisneros, E., Kaminski, A., Kasper, D., Klement, R., Kraus, S., Labdon, A., Lanthermann, C., Bouquin, J. -B. Le, Gonzalez, M. J. Lopez, Luque, R., Mann, A. W., Marfil, E., Monnier, J. D., Montes, D., Morales, J. C., Palle, E., Pedraz, S., Quirrenbach, A., Reffert, S., Reiners, A., Ribas, I., Rodriguez-Lopez, C., Schaefer, G., Schweitzer, A., Seifahrt, A., Setterholm, B. R., Shan, Y., Shulyak, D., Solano, E., Sreenivas, K. R., Stefansson, G., Stuermer, J., Tabernero, H. M., Tal-Or, L., Brummelaar, T. ten, Vanaverbeke, S., von Braun, K., Youngblood, A., Zechmeister, M.
Publikováno v:
A&A 665, A120 (2022)
The Gl 486 system consists of a very nearby, relatively bright, weakly active M3.5 V star at just 8 pc with a warm transiting rocky planet of about 1.3 R_Terra and 3.0 M_Terra that is ideal for both transmission and emission spectroscopy and for test
Externí odkaz:
http://arxiv.org/abs/2206.09990
Publikováno v:
A&A 660, A124 (2022)
Aims. We use the recently published database (Trifonov et al. 2020) of radial velocities (RVs) that were derived from fifteen years of HARPS/ESO observations to search for planet candidates. Methods. For targets with sufficient RV data, we apply an a
Externí odkaz:
http://arxiv.org/abs/2112.09029
We have conducted experiments on the effect of polymer solutions on the formation and propagation of vortex rings. We study this effect in aqueous solution of hydrolyzed polyacrylamide (PAMH) at different concentrations. Addition of PAMH imparts shea
Externí odkaz:
http://arxiv.org/abs/1911.12652
Anomalous entrainment in cumulus clouds has been a topic of investigation over many decades in the past. Its importance stems from the fact that entrainment rate is one of the major inputs to several cumulus-parameterization schemes. Recently Narasim
Externí odkaz:
http://arxiv.org/abs/1911.10828