Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Mirouh, Giovanni M."'
Binary stars evolve into chemically-peculiar objects and are a major driver of the Galactic enrichment of heavy elements. During their evolution they undergo interactions, including tides, that circularize orbits and synchronize stellar spins, impact
Externí odkaz:
http://arxiv.org/abs/2307.02678
Autor:
Handler, Gerald, Pigulski, Andrzej, Daszyńska-Daszkiewicz, Jadwiga, Irrgang, Andreas, Kilkenny, David, Guo, Zhao, Przybilla, Norbert, Aliçavuş, Filiz Kahraman, Kallinger, Thomas, Pascual-Granado, Javier, Niemczura, Ewa, Różański, Tomasz, Chowdhury, Sowgata, Buzasi, Derek L., Mirouh, Giovanni M., Bowman, Dominic M., Johnston, Cole, Pedersen, May G., Simón-Diaz, Sergio, Moravveji, Ehsan, Gazeas, Kosmas, De Cat, Peter, Vanderspek, Roland K., Ricker, George R.
We report an analysis of the first known Beta Cep pulsator observed by the TESS mission, the runaway star PHL 346 = HN Aqr. The star, previously known as a singly-periodic pulsator, has at least 34 oscillation modes excited, 12 of those in the g-mode
Externí odkaz:
http://arxiv.org/abs/1902.08312
Autor:
Pedersen, May G., Chowdhury, Sowgata, Johnston, Cole, Bowman, Dominic, Aerts, Conny, Handler, Gerald, De Cat, Peter, Neiner, Coralie, David-Uraz, Alexandre, Buzasi, Derek, Tkachenko, Andrew, Simon-Diaz, Sergio, Moravveji, Ehsan, Sikora, James, Mirouh, Giovanni M., Lovekin, Catherine C., Cantiello, Matteo, Daszynska-Daszkiewicz, Jadwiga, Pigulski, Andrzej, Vanderspek, Roland K., Ricker, George R.
Uncertainties in stellar structure and evolution theory are largest for stars undergoing core convection on the main sequence. A powerful way to calibrate the free parameters used in the theory of stellar interiors is asteroseismology, which provides
Externí odkaz:
http://arxiv.org/abs/1901.07576
Oscillation modes in fast-rotating stars can be split into several subclasses, each with their own properties. To date, seismology of these stars cannot rely on regular pattern analysis and scaling relations. However, recently there has been the prom
Externí odkaz:
http://arxiv.org/abs/1811.05769
Early-type stars generally tend to be fast rotators. In these stars, mode identification is very challenging as the effects of rotation are not well known. We consider here the example of $\alpha$ Ophiuchi, for which dozens of oscillation frequencies
Externí odkaz:
http://arxiv.org/abs/1711.06053
The gravito-inertial waves propagating over a shellular baroclinic flow inside a rotating spherical shell are analysed using the Boussinesq approximation. The wave properties are examined by computing paths of characteristics in the non-dissipative l
Externí odkaz:
http://arxiv.org/abs/1511.05832
While many intermediate- and high-mass main sequence stars are rapidly and differentially rotating, the effects of rotation on oscillation modes are poorly known. In this communication we present a first study of axisymmetric gravito-inertial modes i
Externí odkaz:
http://arxiv.org/abs/1411.3559
Autor:
Mirouh, Giovanni M., Reese, Daniel R., Lara, Francisco Espinosa, Ballot, Jérôme, Rieutord, Michel
Many early-type stars have been measured with high angular velocities. In such stars, mode identification is difficult as the effects of fast and differential rotation are not well known. Using fundamental parameters measured by interferometry, the E
Externí odkaz:
http://arxiv.org/abs/1309.3887
Autor:
Mirouh, Giovanni M., Garaud, Pascale, Stellmach, Stephan, Traxler, Adrienne L., Wood, Toby S.
The process referred to as "semi-convection" in astrophysics and "double-diffusive convection in the diffusive regime" in Earth and planetary sciences, occurs in stellar and planetary interiors in regions which are stable according to the Ledoux crit
Externí odkaz:
http://arxiv.org/abs/1112.4819
Publikováno v:
Frontiers in Astronomy & Space Sciences. 10/6/2022, p01-19. 19p.
