Zobrazeno 1 - 10
of 91
pro vyhledávání: '"D. R. Gies"'
Autor:
D. R. Gies, Antonin Bouchez, Lewis C. Roberts, T. ten Brummelaar, Ellyn K. Baines, Simon P. Goodwin, E. L. Rickman, Nils H. Turner, Saida M. Caballero-Nieves, Kirsty Taggart, Richard Dekany
We present results of a high angular resolution survey of massive OB stars in the Cygnus OB2 association that we conducted with the NIRI camera and ALTAIR adaptive optics system of the Gemini North telescope. We observed 74 O- and early B-type stars
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4fa73246a69c50a4020444e65a0a93e
https://eprints.whiterose.ac.uk/166184/8/2008.00064.pdf
https://eprints.whiterose.ac.uk/166184/8/2008.00064.pdf
Autor:
Stephane Lagarde, J. Dejonghe, C. Pannetier, Denis Mourard, Karine Perraut, Laszlo Sturmann, C. Bailet, T. ten Brummelaar, Fabien Patru, John Monnier, Sylvestre Lacour, Laurent Jocou, Ph. Berio, Stefan Kraus, D. Lecron, Narsireddy Anugu, Judit Sturmann, Romain Petrov, D. R. Gies, S. Rousseau, Ph. Stee, J.-B. Le Bouquin, Frédéric Cassaing, Nicolas Nardetto, F. Allouche
Publikováno v:
Optical and Infrared Interferometry and Imaging VII
Proceedings Volume 11446, Optical and Infrared Interferometry and Imaging VII
SPIE Astronomical Telescopes + Instrumentation 2020
SPIE Astronomical Telescopes + Instrumentation 2020, Dec 2020, Online Only, United States. pp.114460T, ⟨10.1117/12.2560625⟩
Proceedings Volume 11446, Optical and Infrared Interferometry and Imaging VII
SPIE Astronomical Telescopes + Instrumentation 2020
SPIE Astronomical Telescopes + Instrumentation 2020, Dec 2020, Online Only, United States. pp.114460T, ⟨10.1117/12.2560625⟩
International audience; CHARA/SPICA (Stellar Parameters and Images with a Cophased Array) is currently being developed at Observatoire de la Cote d’Azur. It will be installed at the visible focus of the CHARA Array by the end of 2021. It has been d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae8336c8d3cc23dbb58c2bb2da6ba80a
Autor:
A. Domiciano de Souza, Daniel M. Faes, J. E. Bjorkman, Allison D. Gullingsrud, D. R. Gies, Lynn D. Matthews, R. G. Vieira, Noel D. Richardson, Gregg Hallinan, Alex C. Carciofi, K. Torstensson, Richard Ignace, Robert Klement, Michel Curé, Pierre Kervella, C. De Breuck, Bruno Mota, D. S. Gunawan, Th. Rivinius
Publikováno v:
The Astrophysical Journal
The Astrophysical Journal, American Astronomical Society, 2019, 885 (2), pp.147. ⟨10.3847/1538-4357/ab48e7⟩
The Astrophysical Journal, American Astronomical Society, 2019, 885 (2), pp.147. ⟨10.3847/1538-4357/ab48e7⟩
Rapid rotation is a fundamental characteristic of classical Be stars and a crucial property allowing for the formation of their circumstellar disks. Past evolution in a mass and angular momentum transferring binary system offers a plausible solution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5eae875e382226e93350e3f7e8a92d71
Autor:
Petr Harmanec, I. Tallon-Bosc, M. Šlechta, Jan Budaj, D. R. Gies, D. Bonneau, Henrique R. Schmitt, Hrvoje Božić, Miroslav Brož, Denis Mourard
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 645, pp.A51. ⟨10.1051/0004-6361/202039035⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 645, pp.A51. ⟨10.1051/0004-6361/202039035⟩
beta Lyr A is a complex binary system with an extensive observational dataset: light curves (from FUV to FIR), interferometric squared visibility, closure phase, triple product measurements, spectral-energy distribution (SED), high-resolution spectro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b822cfcc60aeb086c3dc76130d94467
https://doi.org/10.1051/0004-6361/202039035
https://doi.org/10.1051/0004-6361/202039035
Autor:
M. Fredslund Andersen, Martin Bo Nielsen, Gail Schaefer, D. R. Gies, Frank Grundahl, Suzanne Aigrain, Kathryn Gordon, Timothy R. Bedding, Victoria Antoci, Daniel Huber, V. Silva Aguirre, Geert Barentsen, Conny Aerts, Michael J. Ireland, Simon Albrecht, Simon J. Murphy, Peter G. Tuthill, Péter Pápics, Timothy R. White, Thomas Barclay, Benjamin J. S. Pope, Steve B. Howell, Paul G. Beck
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 471, 2882-2901
White, T, Pope, B J S, Antoci, V, Pápics, P I, Aerts, C, Gies, D R, Gordon, K, Huber, D, Schaefer, G H, Aigrain, S, Albrecht, S, Barclay, T, Barentsen, G, Beck, P G, Bedding, T R, Fredslund Andersen, M, Grundahl, F, Howell, S B, Ireland, M J, Murphy, S J, Nielsen, M B, Silva Aguirre, V & Tuthill, P G 2017, ' Beyond the Kepler/K2 bright limit : variability in the seven brightest members of the Pleiades ', Royal Astronomical Society. Monthly Notices, vol. 471, no. 3, pp. 2882-2901 . https://doi.org/10.1093/mnras/stx1050
Monthly Notices of the Royal Astronomical Society, 471, 3, pp. 2882-2901
Monthly Notices of the Royal Astronomical Society
White, T, Pope, B J S, Antoci, V, Pápics, P I, Aerts, C, Gies, D R, Gordon, K, Huber, D, Schaefer, G H, Aigrain, S, Albrecht, S, Barclay, T, Barentsen, G, Beck, P G, Bedding, T R, Fredslund Andersen, M, Grundahl, F, Howell, S B, Ireland, M J, Murphy, S J, Nielsen, M B, Silva Aguirre, V & Tuthill, P G 2017, ' Beyond the Kepler/K2 bright limit : variability in the seven brightest members of the Pleiades ', Royal Astronomical Society. Monthly Notices, vol. 471, no. 3, pp. 2882-2901 . https://doi.org/10.1093/mnras/stx1050
Monthly Notices of the Royal Astronomical Society, 471, 3, pp. 2882-2901
Monthly Notices of the Royal Astronomical Society
The most powerful tests of stellar models come from the brightest stars in the sky, for which complementary techniques, such as astrometry, asteroseismology, spectroscopy, and interferometry can be combined. The K2 Mission is providing a unique oppor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00884e7543eddd4fc675b65793c86730
https://doi.org/10.1093/mnras/stx1050
https://doi.org/10.1093/mnras/stx1050
Publikováno v:
Astronomy & Astrophysics, 615:A30. EDP Sciences
Astronomy & Astrophysics
Astronomy & Astrophysics
Stripped-envelope stars (SESs) form in binary systems after losing mass through Roche-lobe overflow. They bear astrophysical significance as sources of UV and ionizing radiation in older stellar populations and, if sufficiently massive, as stripped s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ad0a853fe635f99dad14d090112050e
https://dare.uva.nl/personal/pure/en/publications/clues-about-the-scarcity-of-strippedenvelope-stars-from-the-evolutionary-state-of-the-sdobe-binary-system--persei(840226d5-f5bf-4a58-942f-8211bd585931).html
https://dare.uva.nl/personal/pure/en/publications/clues-about-the-scarcity-of-strippedenvelope-stars-from-the-evolutionary-state-of-the-sdobe-binary-system--persei(840226d5-f5bf-4a58-942f-8211bd585931).html
Autor:
D. R. Gies
Publikováno v:
EAS Publications Series. 64:3-10
This is an era of enormous opportunity in binary star research. The Leuven meeting provided an assessment of the broad scope of observational work, merits of the analysis methods, and connections with theory. Here I outline some of the issues related
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f645903615adba38540be93855d78924
https://doi.org/10.1051/eas/1364001
https://doi.org/10.1051/eas/1364001
Autor:
Hugues Sana, T. van Boeckel, D. R. Gies, L. E. Ellerbroek, Anthony F. J. Moffat, O. Schnurr, Lex Kaper, Fabian Schneider, A. de Koter, Frank Tramper
Publikováno v:
Monthly Notices of the Royal Astronomical Society. Letters, 432(1), L26-L30. Oxford University Press
R144 is a WN6h star in the 30 Doradus region. It is suspected to be a binary because of its high luminosity and its strong X-ray flux, but no periodicity could be established so far. Here, we present new Xshooter multi-epoch spectroscopy of R144 obta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0887f3892b0eadb8d0ae03e94525a47a
https://doi.org/10.1093/mnrasl/slt029
https://doi.org/10.1093/mnrasl/slt029
Autor:
Gail Schaefer, Xiao Che, Chris Farrington, L. Sturmann, M. Zhao, John D. Monnier, H. A. McAlister, Nils H. Turner, E. Pedretti, J. Sturmann, Nathalie Thureau, Y. Touhami, P. J. Goldfinger, T. ten Brummelaar, S. T. Ridgway, Noel D. Richardson, D. R. Gies
Publikováno v:
The Astronomical Journal. 140:1838-1849
We present interferometric observations of the Be star Zeta Tau obtained using the MIRC beam combiner at the CHARA Array. We resolved the disk during four epochs in 2007-2009. We fit the data with a geometric model to characterize the circumstellar d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8d68eb57f1ada1304d71118ebc6f3bc
https://doi.org/10.1088/0004-6256/140/6/1838
https://doi.org/10.1088/0004-6256/140/6/1838
Autor:
Gail Schaefer, Hrvoje Božić, John D. Monnier, I. Tallon-Bosc, Chris Farrington, Miroslav Brož, J. Nemravová, J. M. Clausse, Denis Mourard, H. A. McAlister, H. R. Schmitt, Ellyn K. Baines, M. Šlechta, P. Svoboda, Jan Budaj, D. Korčáková, A. Meilland, Marek Wolf, Petr Harmanec, J. T. Armstrong, D. Bonneau, J. Jurysek, D. R. Gies, Petr Zasche, F. Baron, N. Nardetto
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2018, 618, pp.A112. ⟨10.1051/0004-6361/201832952⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2018, 618, pp.A112. ⟨10.1051/0004-6361/201832952⟩
Astronomy and Astrophysics-A&A, 2018, 618, pp.A112. ⟨10.1051/0004-6361/201832952⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2018, 618, pp.A112. ⟨10.1051/0004-6361/201832952⟩
Mass exchange and mass loss in close binaries can significantly affect their evolution, but a complete self-consistent theory of these processes is still to be developed. Processes such as radiative shielding due to a hot-spot region, or a hydrodynam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc06671bf9ba886559efab240323a361
https://doi.org/10.1051/0004-6361/201832952
https://doi.org/10.1051/0004-6361/201832952