Zobrazeno 1 - 10
of 141
pro vyhledávání: '"Baran Andrzej"'
Autor:
Green, Matthew J., Hermes, J. J., Barlow, Brad N., Marsh, T. R., Pelisoli, Ingrid, Gänsicke, Boris T., Kaiser, Ben C., Romero, Alejandra, Amaral, Larissa Antunes, Corcoran, Kyle, Grupe, Dirk, Kennedy, Mark R., Kepler, S. O., Munday, James, Ashley, R. P., Baran, Andrzej S., Breedt, Elmé, Brown, Alex J., Dhillon, V. S., Dyer, Martin J., Kerry, Paul, King, George W., Littlefair, S. P., Parsons, Steven G., Sahman, David I.
AM CVn-type systems are ultracompact, helium-accreting binary systems which are evolutionarily linked to the progenitors of thermonuclear supernovae and are expected to be strong Galactic sources of gravitational waves detectable to upcoming space-ba
Externí odkaz:
http://arxiv.org/abs/2311.01255
Autor:
Munday, James, Tremblay, P. -E., Hermes, J. J., Barlow, Brad, Pelisoli, Ingrid, Marsh, T. R., Parsons, Steven G., Jones, David, Kepler, S. O., Brown, Alex, Littlefair, S. P., Hegedus, R., Baran, Andrzej, Breedt, Elmé, Dhillon, V. S., Dyer, Martin J., Green, Matthew J., Kennedy, Mark R., Kerry, Paul, Lopez, Isaac D., Romero, Alejandra D., Sahman, Dave, Worters, Hannah L.
We present the discovery of the eclipsing double white dwarf (WD) binary WDJ 022558.21-692025.38 that has an orbital period of 47.19 min. Following identification with the Transiting Exoplanet Survey Satellite, we obtained time-series ground based sp
Externí odkaz:
http://arxiv.org/abs/2308.00036
Autor:
Sanjayan, Sachu, Baran, Andrzej S, Nemeth, Peter, Kinemuchi, Karen, Ostrowski, Jakub, Sahoo, Sumanta Kumar
Publikováno v:
2022AcA....72...77S
We present the list of variable stars we found in the Kepler superstamp data covering approximately 9 arcminutes from the central region of NGC 6791. We classified the variable stars based on the variability type and we established their cluster memb
Externí odkaz:
http://arxiv.org/abs/2303.07422
Autor:
Guzik, Joyce A., Baran, Andrzej S., Sanjayan, Sachu, Németh, Péter, Hedlund, Anne M., Jackiewicz, Jason, Dauelsberg, Lori R.
NGC 6819 is an open cluster of age 2.4 Gyr that was in the NASA Kepler spacecraft field of view from 2009 to 2013. The central part of the cluster was observed in a 200 x 200 pixel `superstamp' during these four years in 30-minute cadence photometry,
Externí odkaz:
http://arxiv.org/abs/2303.01581
Autor:
Uzundag, Murat, Silvotti, Roberto, Baran, Andrzej S., Vuckovic, Maja, Nemeth, Péter, Sahoo, Sumanta K., Reed, Mike
TIC033834484 and TIC309658435 are long-period pulsating subdwarf B star, which were observed extensively (675 and 621 days, respectively) by the Transiting Exoplanet Survey Satellite (TESS). The high-precision photometric light curve reveals the pres
Externí odkaz:
http://arxiv.org/abs/2212.02950
Autor:
Córsico, Alejandro H., Uzundag, Murat, Kepler, S. O., Althaus, Leandro G., Silvotti, Roberto, Bradley, Paul A., Baran, Andrzej S., Koester, Detlev, Bell, Keaton J., Romero, Alejandra D., Hermes, J. J., Fusillo, Nicola P. Gentile
The {\sl TESS} space mission has recently demonstrated its great potential to discover new pulsating white dwarf and pre-white dwarf stars, and to detect periodicities with high precision in already known white-dwarf pulsators. We report the discover
Externí odkaz:
http://arxiv.org/abs/2210.05486
Autor:
Silvotti, Roberto, Németh, Péter, Telting, John H., Baran, Andrzej S., Østensen, Roy H., Ostrowski, Jakub, Sahoo, Sumanta K., Prins, Saskia
TIC137608661/TYC4544-2658-1/FBS0938+788 is a new sdBV+dM reflection-effect binary discovered by the TESS space mission with an orbital period of 7.21 hours. In addition to the orbital frequency and its harmonics, the Fourier transform of TIC137608661
Externí odkaz:
http://arxiv.org/abs/2201.06559
Autor:
Córsico, Alejandro H., Uzundag, Murat, Kepler, S. O., Silvotti, Roberto, Althaus, Leandro G., Koester, Detlev, Baran, Andrzej S., Bell, Keaton J., Bischoff-Kim, Agnès, Hermes, J. J., Kawaler, Steve D., Provencal, Judith L., Winget, Don E., Montgomery, Michael H., Bradley, Paul A., Kleinman, S. J., Nitta, Atsuko
Publikováno v:
A&A 659, A30 (2022)
The collection of high-quality photometric data by space telescopes is revolutionizing the area of white-dwarf asteroseismology. Among the different kinds of pulsating white dwarfs, there are those that have He-rich atmospheres, and they are called D
Externí odkaz:
http://arxiv.org/abs/2111.15551
Autor:
Uzundag, Murat, Vuckovic, Maja, Nemeth, Peter, Bertolami, M. Miller, Silvotti, Roberto, Baran, Andrzej S., Telting, John H., Reed, Mike, Shoaf, K. A., Ostensen, Roy H., Sahoo, Sumanta K.
Publikováno v:
A&A 651, A121 (2021)
We present photometric and spectroscopic analyses of gravity (g-mode) long-period pulsating hot subdwarf B (sdB) stars. We perform a detailed asteroseismic and spectroscopic analysis of five pulsating sdB stars observed with {\it TESS} aiming at the
Externí odkaz:
http://arxiv.org/abs/2105.15137
Autor:
Córsico, Alejandro H., Uzundag, Murat, Kepler, S. O., Althaus, Leandro G., Silvotti, Roberto, Baran, Andrzej S., Vučković, Maja, Werner, Klaus, Bell, Keaton J., Higgins, Michael
Publikováno v:
A&A 645, A117 (2021)
In this paper, we present a detailed asteroseismological analysis of six GW Vir stars including the observations collected by the TESS mission. We processed and analyzed TESS observations of RX J2117+3412, HS 2324+3944, NGC 6905, NGC 1501, NGC 2371,
Externí odkaz:
http://arxiv.org/abs/2011.03629