Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Sowicka P."'
Autor:
Calcaferro, Leila M., Sowicka, Paulina, Uzundag, Murat, Córsico, Alejandro H., Kepler, S. O., Bell, Keaton J., Althaus, Leandro G., Handler, Gerald, Kawaler, Steven D., Werner, Klaus
Publikováno v:
A&A 686, A140 (2024)
Significant advances have been achieved through the latest improvements in the photometric observations accomplished by the recent space missions, substantially boosting the study of pulsating stars via asteroseismology. The TESS mission has already
Externí odkaz:
http://arxiv.org/abs/2402.16642
Autor:
Sowicka, Paulina, Handler, Gerald, Jones, David, Caldwell, John A. R., van Wyk, Francois, Paunzen, Ernst, Bąkowska, Karolina, de Arriba, Luis Peralta, Suárez-Andrés, Lucía, Werner, Klaus, Karjalainen, Marie, Holdsworth, Daniel L.
We present the results of new time series photometric observations of 29 pre-white dwarf stars of PG 1159 spectral type, carried out in the years 2014-2022. For the majority of stars, a median noise level in Fourier amplitude spectra of 0.5-1.0 mmag
Externí odkaz:
http://arxiv.org/abs/2309.16537
Autor:
Zak, J., Jones, D., Boffin, H. M. J., Beck, P. G., Klencki, J., Bodensteiner, J., Shenar, T., Van Winckel, H., Skarka, M., Arellano-Córdova, K., Viuho, J., Sowicka, P., Guenther, E. W., Hatzes, A.
The quest for quiet or dormant black holes has been ongoing since several decades. Ellipsoidal variables possibly indicate the existence of a very high-mass invisible companion and are thought to be one of the best ways to find such dormant black hol
Externí odkaz:
http://arxiv.org/abs/2307.09594
Several studies have shown that a number of stars pulsating in p modes lie between the $\beta$ Cep and $\delta$ Sct instability strips in the Hertzsprung-Russell (HR) Diagram. At present, there is no certain understanding of how p~modes can be excite
Externí odkaz:
http://arxiv.org/abs/2303.11358
Autor:
Jones, David, Munday, James, Corradi, Romano, Rodríguez-Gil, Pablo, Boffin, Henri, Zak, Jiri, Sowicka, Paulina, Parsons, Steven, Dhillon, Vik, Littlefair, S., Marsh, T., Reindl, Nicole, García-Rojas, Jorge
We present a detailed study of the stellar and orbital parameters of the post-common envelope binary central star of the planetary nebula Ou~5. Low-resolution spectra obtained during the primary eclipse -- to our knowledge the first isolated spectra
Externí odkaz:
http://arxiv.org/abs/2112.09505
Publikováno v:
2021, ApJL, 918, L1
Up to 98% of all single stars will eventually become white dwarfs - stars that link the history and future evolution of the Galaxy, and whose previous evolution is engraved in their interiors. Those interiors can be studied using asteroseismology, ut
Externí odkaz:
http://arxiv.org/abs/2108.08167
Autor:
Munday, James, Jones, David, García-Rojas, Jorge, Boffin, Henri M. J., Miszalski, Brent, Corradi, Romano L. M., Rodríguez-Gil, Pablo, Rubio-Díez, María del Mar, Santander-García, Miguel, Sowicka, Paulina
We present a detailed study of the binary central star of the planetary nebula ETHOS 1 (PN G068.1+11.0). Simultaneous modelling of light and radial velocity curves reveals the binary to comprise a hot and massive pre-white-dwarf with an M-type main-s
Externí odkaz:
http://arxiv.org/abs/2009.03577
Autor:
Jones, David, Boffin, Henri M. J., Hibbert, Jacob, Steinmetz, Thomas, Wesson, Roger, Hillwig, Todd C., Sowicka, Paulina, Corradi, Romano L. M., García-Rojas, Jorge, Rodríguez-Gil, Pablo, Munday, James
Publikováno v:
A&A 642, A108 (2020)
We present the discovery and characterisation of the post-common-envelope central star system in the planetary nebula PN G283.7$-$05.1. Deep images taken as part of the POPIPlaN survey indicate that the nebula may possess a bipolar morphology similar
Externí odkaz:
http://arxiv.org/abs/2007.08960
Autor:
Handler, G., Kurtz, D. W., Rappaport, S. A., Saio, H., Fuller, J., Jones, D., Guo, Z., Chowdhury, S., Sowicka, P., Alicavus, F. Kahraman, Streamer, M., Murphy, S. J., Gagliano, R., Jacobs, T. L., Vanderburg, A.
It has long been suspected that tidal forces in close binary stars could modify the orientation of the pulsation axis of the constituent stars. Such stars have been searched for, but until now never detected. Here we report the discovery of tidally t
Externí odkaz:
http://arxiv.org/abs/2003.04071
Autor:
Jones, David, Conroy, Kyle E., Horvat, Martin, Giammarco, Joseph, Kochoska, Angela, Pablo, Herbert, Brown, Alex J., Sowicka, Paulina, Prsa, Andrej
Traditionally, the effects of interstellar extinction on binary star light curves have been treated as a uniform reduction in the observed brightness of the system that is independent of orbital phase. However, unless the orbital plane of the system
Externí odkaz:
http://arxiv.org/abs/1912.09474