Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Daniel Luke Holdsworth"'
Publikováno v:
Astronomy & Astrophysics, 650:A125. EDP Sciences
Magnetic fields influence the formation and evolution of stars and impact the observed stellar properties. Ap stars (magnetic A-type stars) are a prime example of this. Access to precise and accurate determinations of their stellar fundamental proper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16d6aef942a43c8cfc9d9bb42d5758fc
Autor:
Timothy R. Bedding, Daniel Luke Holdsworth, Benjamin J. Fulton, Simon J. Murphy, Daniel Huber, Margarida S. Cunha, Daniel R. Hey, D. W. Kurtz, Andrew W. Howard
Publikováno v:
Hey, D R, Holdsworth, D L, Bedding, T R, Murphy, S J, Cunha, M S, Kurtz, D W, Huber, D, Fulton, B & Howard, A W 2019, ' Six new rapidly oscillating Ap stars in the Kepler long-cadence data using super-Nyquist asteroseismology ', Monthly Notices of the Royal Astronomical Society, vol. 488, no. 1, pp. 18-36 . https://doi.org/10.1093/mnras/stz1633
We perform a search for rapidly oscillating Ap stars in the Kepler long-cadence data, where true oscillations above the Nyquist limit of 283.21 {\mu}Hz can be reliably distinguished from aliases as a consequence of the barycentric time corrections ap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb4151f3d2d7c9545daf66cacd0f9825
https://doi.org/10.1093/mnras/stz1633
https://doi.org/10.1093/mnras/stz1633
Autor:
Marek Skarka, Daniel Luke Holdsworth, David Jones, J. Aiken, Lorne Nelson, Andrew Vanderburg, Jim Fuller, Dax L. Feliz, Daniel J. Stevens, Jiří Žák, D. W. Kurtz, Hideyuki Saio, Pierre F. L. Maxted, F. Kahraman Aliçavuş, Gerald Handler, Saul Rappaport
We report the discovery of the third tidally tilted pulsator, TIC 63328020. Observations with the TESS satellite reveal binary eclipses with an orbital period of 1.1057 d, and $\delta$ Scuti-type pulsations with a mode frequency of 21.09533 d$^{-1}$.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0a93b342ac5ca39e6a943d8390fb237
https://resolver.caltech.edu/CaltechAUTHORS:20210602-094542051
https://resolver.caltech.edu/CaltechAUTHORS:20210602-094542051
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
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
http://hdl.handle.net/10481/71174
Autor:
Daniel Luke Holdsworth, Dominic M. Bowman, Andrew Tkachenko, J. Hermans, Barry Smalley, D. W. Kurtz, Jadwiga Daszyńska-Daszkiewicz, Simon J. Murphy
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Bowman, D M, Hermans, J, Daszyńska-Daszkiewicz, J, Holdsworth, D L, Tkachenko, A, Murphy, S J, Smalley, B & Kurtz, D W 2021, ' KIC 5950759 : A high-Amplitude δsct star with amplitude and frequency modulation near the terminal age main sequence ', Monthly Notices of the Royal Astronomical Society, vol. 504, no. 3, pp. 4039-4053 . https://doi.org/10.1093/mnras/stab1124
Bowman, D M, Hermans, J, Daszyńska-Daszkiewicz, J, Holdsworth, D L, Tkachenko, A, Murphy, S J, Smalley, B & Kurtz, D W 2021, ' KIC 5950759 : A high-Amplitude δsct star with amplitude and frequency modulation near the terminal age main sequence ', Monthly Notices of the Royal Astronomical Society, vol. 504, no. 3, pp. 4039-4053 . https://doi.org/10.1093/mnras/stab1124
Amongst the intermediate mass pulsating stars known as $\delta$ Sct stars is a subset of high-amplitude and predominantly radial-mode pulsators known as high-amplitude $\delta$ Sct (HADS) stars. From more than 2000 $\delta$ Sct stars observed by the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2b6a33d75c482e62de10c95591736e4
Autor:
E. Brunsden, Daniel Luke Holdsworth
Spectroscopy is a powerful tool for detecting variability in the rapidly oscillating Ap (roAp) stars. The technique requires short integrations times and high resolution, and so is limited to only a few telescopes and instruments. To test the capabil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c6ade9ddaa691979e8e1b29750bd852
The TESS space mission is producing superb data for asteroseismology, eclipsing binary stars, gyrochronology, and other fields of stellar astronomy where the data are variable light curves. We show that TESS data are excellent for astrophysical infer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59071cec5b4aa0b7ad2aa18126a77b7c
http://arxiv.org/abs/2003.14144
http://arxiv.org/abs/2003.14144
Autor:
Gang Li, Andrew W. Mann, Michael J. Ireland, C. G. Tinney, Daniel Luke Holdsworth, Victoria Antoci, Hans Kjeldsen, Daniel R. Reese, Howard Isaacson, Jie Yu, Timothy R. White, Timothy R. Bedding, Jon M. Jenkins, Adam D. Rains, Dennis Stello, J. J. Hermes, George R. Ricker, Daniel Huber, Simon J. Murphy, William J. Chaplin, Warrick H. Ball, Yaguang Li, S. Sekaran, Roland Vanderspek, Tanda Li, Eric Gaidos, Isabel L. Colman, Christoph Bergmann, Andrew W. Howard, Curtis McCully, Timothy M. Brown, Barry Smalley, Markus Rabus, Daniel Harbeck, Jim Fuller, Daniel R. Hey
Publikováno v:
Nature
Nature, Nature Publishing Group, 2020, 581 (7807), pp.147-151. ⟨10.1038/s41586-020-2226-8⟩
Bedding, T R, Murphy, S J, Hey, D R, Huber, D, Li, T, Smalley, B, Stello, D, White, T R, Ball, W H, Chaplin, W J, Colman, I L, Fuller, J, Gaidos, E, Harbeck, D R, Hermes, J J, Holdsworth, D L, Li, G, Li, Y, Mann, A W, Reese, D R, Sekaran, S, Yu, J, Antoci, V, Bergmann, C, Brown, T M, Howard, A W, Ireland, M J, Isaacson, H, Jenkins, J M, Kjeldsen, H, McCully, C, Rabus, M, Rains, A D, Ricker, G R, Tinney, C G & Vanderspek, R K 2020, ' Very regular high-frequency pulsation modes in young intermediate-mass stars ', Nature, vol. 581, pp. 147-151 . https://doi.org/10.1038/s41586-020-2226-8
Bedding, T R, Murphy, S J, Hey, D R, Huber, D, Li, T, Smalley, B, Stello, D, White, T R, Ball, W H, Chaplin, W J, Colman, I L, Fuller, J, Gaidos, E, Harbeck, D R, Hermes, J J, Holdsworth, D L, Li, G, Li, Y, Mann, A W, Reese, D R, Sekaran, S, Yu, J, Antoci, V, Bergmann, C, Brown, T M, Howard, A W, Ireland, M J, Isaacson, H, Jenkins, J M, Kjeldsen, H, McCully, C, Rabus, M, Rains, A D, Ricker, G R, Tinney, C G & Vanderspek, R K 2020, ' Very regular high-frequency pulsation modes in young intermediate-mass stars ', Nature, vol. 581, no. 7807, pp. 147-151 . https://doi.org/10.1038/s41586-020-2226-8
Nature, Nature Publishing Group, 2020, 581 (7807), pp.147-151. ⟨10.1038/s41586-020-2226-8⟩
Bedding, T R, Murphy, S J, Hey, D R, Huber, D, Li, T, Smalley, B, Stello, D, White, T R, Ball, W H, Chaplin, W J, Colman, I L, Fuller, J, Gaidos, E, Harbeck, D R, Hermes, J J, Holdsworth, D L, Li, G, Li, Y, Mann, A W, Reese, D R, Sekaran, S, Yu, J, Antoci, V, Bergmann, C, Brown, T M, Howard, A W, Ireland, M J, Isaacson, H, Jenkins, J M, Kjeldsen, H, McCully, C, Rabus, M, Rains, A D, Ricker, G R, Tinney, C G & Vanderspek, R K 2020, ' Very regular high-frequency pulsation modes in young intermediate-mass stars ', Nature, vol. 581, pp. 147-151 . https://doi.org/10.1038/s41586-020-2226-8
Bedding, T R, Murphy, S J, Hey, D R, Huber, D, Li, T, Smalley, B, Stello, D, White, T R, Ball, W H, Chaplin, W J, Colman, I L, Fuller, J, Gaidos, E, Harbeck, D R, Hermes, J J, Holdsworth, D L, Li, G, Li, Y, Mann, A W, Reese, D R, Sekaran, S, Yu, J, Antoci, V, Bergmann, C, Brown, T M, Howard, A W, Ireland, M J, Isaacson, H, Jenkins, J M, Kjeldsen, H, McCully, C, Rabus, M, Rains, A D, Ricker, G R, Tinney, C G & Vanderspek, R K 2020, ' Very regular high-frequency pulsation modes in young intermediate-mass stars ', Nature, vol. 581, no. 7807, pp. 147-151 . https://doi.org/10.1038/s41586-020-2226-8
Asteroseismology is a powerful tool for probing the internal structures of stars by using their natural pulsation frequencies. It relies on identifying sequences of pulsation modes that can be compared with theoretical models, which has been done suc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e200b3c71d6845089388b59f6eb7653a
Autor:
D. W. Kurtz, Daniel Luke Holdsworth
Publikováno v:
Astrophysics and Space Science Proceedings ISBN: 9783030553357
A major result from the first cycle of the TESS mission shows that the well-studied roAp star HD 6532 has a completely different mode geometry when compared to the published extensive ground-based B observations taken in 1984, 1985 and 1994. This is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73f8685a29c15630f23f6100d87e6a07
https://doi.org/10.1007/978-3-030-55336-4_43
https://doi.org/10.1007/978-3-030-55336-4_43
Autor:
Oleg Kochukhov, Daniel Luke Holdsworth, Patrick Lenz, Catherine Lovekin, Alexandre David-Uraz, Gregg A. Wade, Dominic M. Bowman, Oleh Kobzar, Viktor Khalack, James Sikora, Ernst Paunzen
Publikováno v:
Monthly Notices of the Royal Astronomical Society
The new photometric data on pulsating Ap star HD~27463 obtained recently with the Transiting Exoplanet Survey Satellite (\textit{TESS}) are analysed to search for variability. Our analysis shows that HD~27463 exhibits two types of photometric variabi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0526b6b2c04e7a11027486a97ffa46eb
https://lirias.kuleuven.be/handle/123456789/645535
https://lirias.kuleuven.be/handle/123456789/645535