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

J 2021

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

HOLDSWORTH, D. L., M. S. CUNHA, D. W. KURTZ, V. ANTOCI, D. R. HEY et. al.

Základní údaje

Originální název

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

Autoři

HOLDSWORTH, D. L. (garant), M. S. CUNHA, D. W. KURTZ, V. ANTOCI, D. R. HEY, D. M. BOWMAN, O. KOBZAR, D. L. BUZASI, O. KOCHUKHOV, E. NIEMCZURA, D. OZUYAR, F. SHI, R. SZABÓ, A. SAMADI-GHADIM, Z. BOGNÁR, L. FOX-MACHADO, V. KHALACK, M. LARES-MARTIZ, C. C. LOVEKIN, P. MIKOLAJCZYK, D. MIKOŁAJCZYK, J. PASCUAL-GRANADO, Ernst PAUNZEN (40 Rakousko, domácí), T. RICHEY-YOWELL, Ádám SÓDOR, J. SIKORA, T. Z. YANG, E. BRUNSDEN, A. DAVID-URAZ, A. DEREKAS, A. GARCÍA HERNÁNDEZ, J. A. GUZIK, N. HATAMKHANI, R. HANDBERG, T. S. LAMBERT, P. LAMPENS, S. J. MURPHY, R. MONIER, K. R. POLLARD, P. QUITRAL-MANOSALVA, A. RAMON-BALLESTA, B. SMALLEY, I. STATEVA a R. VANDERSPEK

Vydání

Monthly Notices of the Royal Astronomical Society, Oxford University Press, 2021, 0035-8711

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 5.235

Kód RIV

RIV/00216224:14310/21:00122950

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1093/mnras/stab1578

UT WoS

000703918800071

Klíčová slova anglicky

asteroseismology; techniques: photometric; stars: chemically peculiar; stars: magnetic field; stars: oscillations; stars: variables

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 11. 7. 2023 09:25, Mgr. Marie Šípková, DiS.

Anotace

V originále

We present the results of a systematic search for new rapidly oscillating Ap (roAp) stars using the 2-min cadence data collected by the Transiting Exoplanet Survey Satellite (TESS) during its Cycle 1 observations. We identify 12 new roAp stars. Amongst these stars we discover the roAp star with the longest pulsation period, another with the shortest rotation period, and six with multiperiodic variability. In addition to these new roAp stars, we present an analysis of 44 known roAp stars observed by TESS during Cycle 1, providing the first high-precision and homogeneous sample of a significant fraction of the known roAp stars. The TESS observations have shown that almost 60 per cent (33) of our sample of stars are multiperiodic, providing excellent cases to test models of roAp pulsations, and from which the most rewarding asteroseismic results can be gleaned. We report four cases of the occurrence of rotationally split frequency multiplets that imply different mode geometries for the same degree modes in the same star. This provides a conundrum in applying the oblique pulsator model to the roAp stars. Finally, we report the discovery of non-linear mode interactions in α Cir (TIC 402546736, HD 128898) around the harmonic of the principal mode – this is only the second case of such a phenomenon.

Citovat

HOLDSWORTH, D. L., M. S. CUNHA, D. W. KURTZ, V. ANTOCI, D. R. HEY, D. M. BOWMAN, O. KOBZAR, D. L. BUZASI, O. KOCHUKHOV, E. NIEMCZURA, D. OZUYAR, F. SHI, R. SZABÓ, A. SAMADI-GHADIM, Z. BOGNÁR, L. FOX-MACHADO, V. KHALACK, M. LARES-MARTIZ, C. C. LOVEKIN, P. MIKOLAJCZYK, D. MIKOŁAJCZYK, J. PASCUAL-GRANADO, Ernst PAUNZEN, T. RICHEY-YOWELL, Ádám SÓDOR, J. SIKORA, T. Z. YANG, E. BRUNSDEN, A. DAVID-URAZ, A. DEREKAS, A. GARCÍA HERNÁNDEZ, J. A. GUZIK, N. HATAMKHANI, R. HANDBERG, T. S. LAMBERT, P. LAMPENS, S. J. MURPHY, R. MONIER, K. R. POLLARD, P. QUITRAL-MANOSALVA, A. RAMON-BALLESTA, B. SMALLEY, I. STATEVA a R. VANDERSPEK. TESS cycle 1 observations of roAp stars with 2-min cadence data. Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2021, roč. 506, č. 1, s. 1073-1110. ISSN 0035-8711. Dostupné z: https://dx.doi.org/10.1093/mnras/stab1578.

@article{1804899,
   author = {Holdsworth, D. L. and Cunha, M. S. and Kurtz, D. W. and Antoci, V. and Hey, D. R. and Bowman, D. M. and Kobzar, O. and Buzasi, D. L. and Kochukhov, O. and Niemczura, E. and Ozuyar, D. and Shi, F. and Szabó, R. and SamadiandGhadim, A. and Bognár, Z. and FoxandMachado, L. and Khalack, V. and LaresandMartiz, M. and Lovekin, C. C. and Mikolajczyk, P. and Mikołajczyk, D. and PascualandGranado, J. and Paunzen, Ernst and RicheyandYowell, T. and Sódor, Ádám and Sikora, J. and Yang, T. Z. and Brunsden, E. and DavidandUraz, A. and Derekas, A. and García Hernández, A. and Guzik, J. A. and Hatamkhani, N. and Handberg, R. and Lambert, T. S. and Lampens, P. and Murphy, S. J. and Monier, R. and Pollard, K. R. and QuitralandManosalva, P. and RamonandBallesta, A. and Smalley, B. and Stateva, I. and Vanderspek, R.},
   article_number = {1},
   doi = {http://dx.doi.org/10.1093/mnras/stab1578},
   keywords = {asteroseismology; techniques: photometric; stars: chemically peculiar; stars: magnetic field; stars: oscillations; stars: variables},
   language = {eng},
   issn = {0035-8711},
   journal = {Monthly Notices of the Royal Astronomical Society},
   title = {TESS cycle 1 observations of roAp stars with 2-min cadence data},
   url = {https://academic.oup.com/mnras/article-abstract/506/1/1073/6289936},
   volume = {506},
   year = {2021}
}

TY  - JOUR
ID  - 1804899
AU  - 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. - Mikolajczyk, P. - Mikołajczyk, D. - Pascual-Granado, J. - Paunzen, Ernst - Richey-Yowell, T. - Sódor, Ádám - Sikora, J. - Yang, T. Z. - Brunsden, E. - David-Uraz, A. - Derekas, A. - García Hernández, A. - Guzik, J. A. - Hatamkhani, N. - Handberg, R. - Lambert, T. S. - Lampens, P. - Murphy, S. J. - Monier, R. - Pollard, K. R. - Quitral-Manosalva, P. - Ramon-Ballesta, A. - Smalley, B. - Stateva, I. - Vanderspek, R.
PY  - 2021
TI  - TESS cycle 1 observations of roAp stars with 2-min cadence data
JF  - Monthly Notices of the Royal Astronomical Society
VL  - 506
IS  - 1
SP  - 1073-1110
EP  - 1073-1110
PB  - Oxford University Press
SN  - 00358711
KW  - asteroseismology
KW  - techniques: photometric
KW  - stars: chemically peculiar
KW  - stars: magnetic field
KW  - stars: oscillations
KW  - stars: variables
UR  - https://academic.oup.com/mnras/article-abstract/506/1/1073/6289936
N2  - We present the results of a systematic search for new rapidly oscillating Ap (roAp) stars using the 2-min cadence data collected by the Transiting Exoplanet Survey Satellite (TESS) during its Cycle 1 observations. We identify 12 new roAp stars. Amongst these stars we discover the roAp star with the longest pulsation period, another with the shortest rotation period, and six with multiperiodic variability. In addition to these new roAp stars, we present an analysis of 44 known roAp stars observed by TESS during Cycle 1, providing the first high-precision and homogeneous sample of a significant fraction of the known roAp stars. The TESS observations have shown that almost 60 per cent (33) of our sample of stars are multiperiodic, providing excellent cases to test models of roAp pulsations, and from which the most rewarding asteroseismic results can be gleaned. We report four cases of the occurrence of rotationally split frequency multiplets that imply different mode geometries for the same degree modes in the same star. This provides a conundrum in applying the oblique pulsator model to the roAp stars. Finally, we report the discovery of non-linear mode interactions in α Cir (TIC 402546736, HD 128898) around the harmonic of the principal mode – this is only the second case of such a phenomenon.
ER  -

HOLDSWORTH, D. L., M. S. CUNHA, D. W. KURTZ, V. ANTOCI, D. R. HEY, D. M. BOWMAN, O. KOBZAR, D. L. BUZASI, O. KOCHUKHOV, E. NIEMCZURA, D. OZUYAR, F. SHI, R. SZABÓ, A. SAMADI-GHADIM, Z. BOGNÁR, L. FOX-MACHADO, V. KHALACK, M. LARES-MARTIZ, C. C. LOVEKIN, P. MIKOLAJCZYK, D. MIKOŁAJCZYK, J. PASCUAL-GRANADO, Ernst PAUNZEN, T. RICHEY-YOWELL, Ádám SÓDOR, J. SIKORA, T. Z. YANG, E. BRUNSDEN, A. DAVID-URAZ, A. DEREKAS, A. GARCÍA HERNÁNDEZ, J. A. GUZIK, N. HATAMKHANI, R. HANDBERG, T. S. LAMBERT, P. LAMPENS, S. J. MURPHY, R. MONIER, K. R. POLLARD, P. QUITRAL-MANOSALVA, A. RAMON-BALLESTA, B. SMALLEY, I. STATEVA a R. VANDERSPEK. TESS cycle 1 observations of roAp stars with 2-min cadence data. \textit{Monthly Notices of the Royal Astronomical Society}. Oxford University Press, 2021, roč.~506, č.~1, s.~1073-1110. ISSN~0035-8711. Dostupné z: https://dx.doi.org/10.1093/mnras/stab1578.

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