Zobrazeno 1 - 10
of 217
pro vyhledávání: '"Kanbur S"'
Autor:
Das, S., Molnár, L., Kanbur, S. M., Joyce, M., Bhardwaj, A., Singh, H. P., Marconi, M., Ripepi, V., Smolec, R.
We present new theoretical period--luminosity (PL) and period--radius (PR) relations at multiple wavelengths (Johnson--Cousins--Glass and {\sl Gaia} passbands) for a fine grid of BL~Herculis models computed using {\sc mesa-rsp}. The non-linear models
Externí odkaz:
http://arxiv.org/abs/2306.12892
NGC 6441 is a bulge globular cluster with an unusual horizontal branch morphology and a rich population of RR Lyrae (RRL) and Type II Cepheid (T2C) variables that is unexpected for its relatively high metallicity. We present near-infrared (NIR, $JHK_
Externí odkaz:
http://arxiv.org/abs/2209.03384
Autor:
Paxton, Bill, Smolec, R., Schwab, Josiah, Gautschy, A., Bildsten, Lars, Cantiello, Matteo, Dotter, Aaron, Farmer, R., Goldberg, Jared A., Jermyn, Adam S., Kanbur, S. M., Marchant, Pablo, Thoul, Anne, Townsend, Richard H. D., Wolf, William M., Zhang, Michael, Timmes, F. X.
We update the capabilities of the open-knowledge software instrument Modules for Experiments in Stellar Astrophysics (MESA). RSP is a new functionality in MESAstar that models the non-linear radial stellar pulsations that characterize RR Lyrae, Cephe
Externí odkaz:
http://arxiv.org/abs/1903.01426
Autor:
Bhardwaj, A., Kanbur, S. M., Marconi, M., Das, S., Bellinger, E. P., Singh, H. P., Rejkuba, M., Ngeow, C. -C.
We discuss time-series analyses of classical Cepheid and RR Lyrae variables in the Galaxy and the Magellanic Clouds at multiple wavelengths. We adopt the Fourier decomposition method to quantify the structural changes in the light curves of Cepheid a
Externí odkaz:
http://arxiv.org/abs/1810.07364
We present results from a detailed analysis of theoretical and observed light curves of classical Cepheid variables in the Galaxy and the Magellanic Clouds. Theoretical light curves of Cepheid variables are based on non-linear convective hydrodynamic
Externí odkaz:
http://arxiv.org/abs/1806.06533
We present results from the Large Magellanic Cloud Near-infrared Synoptic Survey (LMCNISS) for classical and type II Cepheid variables that were identified by the Optical Gravitational Lensing Experiment (OGLE-III) catalogue. Multiwavelength time-ser
Externí odkaz:
http://arxiv.org/abs/1806.06528
Publikováno v:
ASP Conf. Ser. (2018), 515, 189
We examine the role of opacities in stellar pulsation with reference to Cepheids and RR Lyraes, and examine the effect of augmented opacities on the theoretical pulsation light curves in key temperature ranges. The temperature ranges are provided by
Externí odkaz:
http://arxiv.org/abs/1806.02996
Autor:
Bhardwaj, A., Rejkuba, M., Minniti, D., Surot, F., Valenti, E., Zoccali, M., Gonzalez, O. A., Romaniello, M., Kanbur, S. M., Singh, H. P.
Publikováno v:
A&A 605, A100 (2017)
We present the near-infrared observations of population II Cepheids in the Galactic bulge from VVV survey. We identify 340 population II Cepheids in the Galactic bulge from VVV survey based on their match with OGLE-III Catalogue. The single-epoch $JH
Externí odkaz:
http://arxiv.org/abs/1707.03755
Autor:
Molnár, L., Plachy, E., Klagyivik, P., Juhász, Á. L., Szabó, R., D'Alessandro, Z., Kratz, B., Ortega, J., Kanbur, S.
Space-based photometric missions revealed a surprising abundance of millimagnitude-level additional modes in RR Lyrae stars. The modes that appear in the modulated fundamental-mode (RRab) stars can be ordered into four major categories. Here we prese
Externí odkaz:
http://arxiv.org/abs/1703.02420
Autor:
Moskalik, P., Smolec, R., Kolenberg, K., Molnár, L., Kurtz, D. W., Szabó, R., Benkő, J. M., Nemec, J. M., Chadid, M., Guggenberger, E., Ngeow, C. -C., Jeon, Y. -B., Kopacki, G., Kanbur, S. M.
We present the analysis of four first overtone RR Lyrae stars observed with the Kepler space telescope, based on data obtained over nearly 2.5yr. All four stars are found to be multiperiodic. The strongest secondary mode with frequency f_2 has an amp
Externí odkaz:
http://arxiv.org/abs/1412.2272