The anomalous atmospheric structure of the strongly magnetic Ap star HD 166473

Autor: Swetlana Hubrig, Silva P. Järvinen, H. Adigozalzade, Ilya Ilyin, Viktor Khalack, Gautier Mathys

Publikováno v: Monthly Notices of the Royal Astronomical Society. 499:2734-2743

High resolution spectropolarimetric observations of the strongly magnetic, super-slowly rotating rapidly oscillating Ap star HD166473 are used to investigate the implications of the presence of a variable strong magnetic field on the vertical and sur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37625ff2c7041bafaf27053f496e7398
https://doi.org/10.1093/mnras/staa2887

TESS cycle 1 observations of roAp stars with 2-min cadence data

Autor: Aliz Derekas, N. Hatamkhani, D. W. Kurtz, T. Richey-Yowell, J. Pascual-Granado, P. Lampens, K. R. Pollard, Roland Vanderspek, A. García Hernández, Joyce A. Guzik, Ádám Sódor, Fangfei Shi, Catherine Lovekin, Zs. Bognár, Simon J. Murphy, Oleh Kobzar, Victoria Antoci, Viktor Khalack, Barry Smalley, A. Samadi-Ghadim, Dominic M. Bowman, A. David-Uraz, Derek Buzasi, E. Brunsden, M. Lares-Martiz, Oleg Kochukhov, Ivanka Stateva, T. Z. Yang, E. Niemczura, Dogus Ozuyar, Rasmus Handberg, P. Mikołajczyk, A. Ramón-Ballesta, T. S. Lambert, L. Fox-Machado, J. Sikora, P. Quitral-Manosalva, David Mkrtichian, Richard Monier, M. S. Cunha, Róbert Szabó, Daniel R. Hey, Daniel Luke Holdsworth, Ernst Paunzen

Publikováno v: Digibug. Repositorio Institucional de la Universidad de Granada
instname
Digital.CSIC. Repositorio Institucional del CSIC
Holdsworth, D L, Cunha, M S, Kurtz, D W, Antoci, V, Hey, D R, Bowman, D M, Kobzar, O, Buzasi, D L, Kochukhov, O, Niemczura, E, Ozuyar, D, Shi, F, Szabó, R, Samadi-Ghadim, A, Bognár, Z, Fox-Machado, L, Khalack, V, Lares-Martiz, M, Lovekin, C C, Mikołajczyk, P, Mkrtichian, D, Pascual-Granado, J, Paunzen, E, Richey-Yowell, T, Sódor, Á, Sikora, J, Yang, T Z, Brunsden, E, David-Uraz, A, Derekas, A, Hernández, A G, Guzik, J A, Hatamkhani, N, Handberg, R, Lambert, T S, Lampens, P, Murphy, S J, Monier, R, Pollard, K R, Quitral-Manosalva, P, Ramón-Ballesta, A, Smalley, B, Stateva, I & Vanderspek, R 2021, ' TESS Cycle 1 observations of roAp stars with 2-min cadence data ', Monthly Notices of the Royal Astronomical Society, vol. 506, pp. 1073–1110 . https://doi.org/10.1093/mnras/stab1578

We thank the anonymous referee for a careful reading of the manuscript. DLH acknowledges financial support from the Science and Technology Facilities Council (STFC) via grant ST/M000877/1. MSC acknowledges the support by FCT/MCTES through the researc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14c04df5a1f169bc9b2c3e777df87226
http://hdl.handle.net/10481/71174

The 10.5 year rotation period of the strongly magnetic rapidly oscillating Ap star HD 166473

Autor: Gautier Mathys, Viktor Khalack, John D. Landstreet

How magnetic fields contribute to the differentiation of the rotation rates of the Ap stars and affect the occurrence of non-radial pulsation in some of them are important open questions. Valuable insight can be gained into these questions by studyin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::70686cad30d22491f1a115a2112b1561

An unusual white dwarf star may be a surviving remnant of a subluminous Type Ia supernova

Autor: Adela Kawka, Lilia Ferrario, Stephane Vennes, Erek H. Alper, Péter Németh, John R. Thorstensen, Viktor Khalack

Publikováno v: Science. 357:680-683

Subluminous Type Ia supernovae, such as the Type Iax class prototype SN 2002cx, are described by a variety of models such as the failed detonation and partial deflagration of an accreting carbon-oxygen white dwarf star, or the explosion of an accreti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce618704611aa70f2ac92e018a16617b
https://doi.org/10.1126/science.aam8378

Magnetic OB[A] Stars with TESS: probing their Evolutionary and Rotational properties (MOBSTER) - I. First-light observations of known magnetic B and A stars

Autor: Dominic M. Bowman, Alexandre David-Uraz, Gregg A. Wade, Asif ud-Doula, Matt Shultz, Viktor Khalack, Stan Owocki, Matteo Cantiello, C. Neiner, M. Pergeorelis, C. Erba, R. MacInnis, Catherine Lovekin, Z. Keszthelyi, Oleh Kobzar, J. Labadie-Bartz, Herbert Pablo, S. Chowdhury, Gerald Handler, James Sikora, Véronique Petit, David H. Cohen, Oleg Kochukhov

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2019, 487 (1), pp.304-317. ⟨10.1093/mnras/stz1181⟩

In this paper we introduce the MOBSTER collaboration and lay out its scientific goals. We present first results based on the analysis of nineteen previously known magnetic O, B and A stars observed in 2-minute cadence in sectors 1 and 2 of the Transi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c1e2ade6925ae1e1701af9aa52acd3c
https://lirias.kuleuven.be/handle/123456789/639785