Filling the gap between synchronized and non-synchronized sdBs in short-period sdBV+dM binaries with TESS: TIC 137608661, a new system with a well-defined rotational splitting

Autor: Roberto Silvotti, Péter Németh, John H Telting, Andrzej S Baran, Roy H Østensen, Jakub Ostrowski, Sumanta K Sahoo, Saskia Prins

Publikováno v: Monthly Notices of the Royal Astronomical Society. 511:2201-2217

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: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0664ec7ed7e8563ebd6e598aff74b806
https://doi.org/10.1093/mnras/stac160

Year 1 of the ZTF high-cadence Galactic Plane Survey: Strategy, goals, and early results on new single-mode hot subdwarf B-star pulsators

Autor: Igor Andreoni, Joseph A. Guidry, Jan van Roestel, Russ R. Laher, Richard Dekany, J. J. Hermes, Rahul Biswas, Matthew J. Graham, Andrew J. Drake, Frank J. Masci, Thomas Kupfer, Thomas A. Prince, Dmitry A. Duev, Courtney Klein, Richard Walters, Reed Riddle, Michael W. Coughlin, Corey W Bradshaw, Eric C. Bellm, Lars Bildsten, Shrinivas R. Kulkarni

We present the goals, strategy and first results of the high-cadence Galactic plane survey using the Zwicky Transient Facility (ZTF). The goal of the survey is to unveil the Galactic population of short-period variable stars, including short period b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6388b746eea3ccac1e1e324126585f1

Forward modeling the orbits of companions to pulsating stars from their light travel time variations

Autor: Benjamin J. S. Pope, Simon J. Murphy, Daniel R. Hey, David W. Hogg, Timothy R. Bedding, Daniel Foreman-Mackey

Publikováno v: Hey, D R, Murphy, S J, Foreman-Mackey, D, Bedding, T R, Pope, B J S & Hogg, D W 2020, ' Forward Modeling the Orbits of Companions to Pulsating Stars from Their Light Travel Time Variations ', Astronomical Journal, vol. 159, no. 5, 202 . https://doi.org/10.3847/1538-3881/ab7d38

Mutual gravitation between a pulsating star and an orbital companion leads to a time-dependent variation in path length for starlight traveling to Earth. These variations can be used for coherently pulsating stars, such as the {\delta} Scuti variable

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::082475d939df5de91627a3718d98ba0d
http://arxiv.org/abs/2003.02379

Asteroseismic analysis of the pulsating subdwarf B star KIC 11558725: an sdB+WD system with divergent frequency multiplets and mode trapping observed by Kepler

Autor: Roy Ostensen, J. H. Telting, Joshua W. Kern, Michael D. Reed, Andrzej S. Baran

Publikováno v: Monthly Notices of the Royal Astronomical Society. 474:4709-4716

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4edc7f438aad2ffb220bfa2216fba918
https://doi.org/10.1093/mnras/stx2893

Keplerobservations of the pulsating subdwarf B star KIC 2697388: the detection of converging frequency multiplets in the full data set

Autor: Michael D. Reed, Joshua W. Kern, Roy Ostensen, J. H. Telting, Andrzej S. Baran

Publikováno v: Monthly Notices of the Royal Astronomical Society. 465:1057-1065

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f43615fa731e434c5f642598b677e2bb
https://doi.org/10.1093/mnras/stw2794