Zobrazeno 1 - 10
of 196
pro vyhledávání: '"Nolan R. Walborn"'
Autor:
Nolan R. Walborn, Rodolfo H. Barbá, Nidia Morrell, José Ignacio Arias, Roberto Claudio Gamen, Chris Evans, Yaël Nazé, Jan Cami, Gregg A. Wade, Amin Farhang, I. D. Howarth, Jonathan Smoker, Nick L. J. Cox
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 483:2581-2591
We report new spectroscopic observations of the magnetic Of?p star HD 148937 obtained since 2015 that differ qualitatively from its extensive historical record of weak, periodic spectral variations. This remarkable behaviour represents clear evidence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4780450be3eb74d46820bcb7a198cb4
https://doi.org/10.1093/mnras/sty3304
https://doi.org/10.1093/mnras/sty3304
Autor:
Lex Kaper, J. Japelj, Götz Gräfener, L. E. Ellerbroek, Nolan R. Walborn, M. L. van Gelder, Joachim M. Bestenlehner, Rodolfo H. Barbá, Jorick S. Vink, A. de Koter, S. E. de Mink, A. Bik, Elena Sabbi, M. C. Ramírez-Tannus, Hugues Sana, Marta Sewilo
Publikováno v:
Astronomy & Astrophysics, 636:A54. EDP Sciences
Astronomy & Astrophysics, 636, A54
Astronomy & Astrophysics, 636, A54
The process of massive star ($M\geq8~M_\odot$) formation is still poorly understood. Observations of massive young stellar objects (MYSOs) are challenging due to their rarity, short formation timescale, large distances, and high circumstellar extinct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e42d410087c9401e1c14b3afa72a145
https://doi.org/10.1051/0004-6361/201936361
https://doi.org/10.1051/0004-6361/201936361
Autor:
Hugues Sana, Andrea Bellini, D. J. Lennon, Artemio Herrero, Imants Platais, Selma E. de Mink, Chris Evans, Elena Sabbi, Nolan R. Walborn, Paul A. Crowther, Sangmo Tony Sohn, Roeland P. van der Marel, Luigi R. Bedin, Laura L. Watkins, Norbert Langer
Publikováno v:
Astronomical Journal, 156(3):98. IOP Publishing Ltd.
The Astronomical Journal
The Astronomical Journal
We present a catalog of relative proper motions for 368,787 stars in the 30 Doradus region of the Large Magellanic Cloud (LMC), based on a dedicated two-epoch survey with the Hubble Space Telescope (HST) and supplemented with proper motions from our
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87f1170e29bc5e76cde5dbf6c2e19b11
https://lirias.kuleuven.be/handle/123456789/627207
https://lirias.kuleuven.be/handle/123456789/627207
Autor:
J. Maíz Apellániz, Ralf S. Klessen, D. J. Lennon, Sergio Simón-Díaz, Chris Evans, Luca Fossati, A. de Koter, J. Th. van Loon, Jorick S. Vink, V. M. Kalari, Mark Gieles, Norberto Castro, A. Herrero, Nevena Markova, Joachim M. Bestenlehner, S. E. de Mink, Götz Gräfener, Laurent Mahy, Paul A. Crowther, Hugues Sana, C. Sabín-Sanjulián, Frank Tramper, Norbert Langer, Fabian Schneider, Nolan R. Walborn, O.H. Ramírez-Agudelo, Robert G. Izzard
Publikováno v:
Astronomy & Astrophysics, 618:A73. EDP Sciences
Astronomy and Astrophysics
Astronomy and Astrophysics
The 30 Doradus (30 Dor) nebula in the Large Magellanic Cloud (LMC) is the brightest HII region in the Local Group and a prototype starburst similar to those found in high redshift galaxies. It is thus a stepping stone to understand the complex format
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57aa929dae57345a3aa80d79132d0a77
http://arxiv.org/abs/1807.03821
http://arxiv.org/abs/1807.03821
Autor:
C. Erba, J. O. Sundqvist, J. Maíz Apellániz, David H. Cohen, Fabrice Martins, Véronique Petit, Alexander W. Fullerton, Alexandre David-Uraz, Gregg A. Wade, Nolan R. Walborn, Stan Owocki, Asif ud-Doula, R. MacInnis, Yaël Nazé, Rodolfo H. Barbá
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, 483 (2), pp.2814-2824. ⟨10.1093/mnras/sty3227⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2019, 483 (2), pp.2814-2824. ⟨10.1093/mnras/sty3227⟩
In this paper, we present high-resolution HST/COS observations of the extreme magnetic O star NGC 1624-2. These represent the first ultraviolet spectra of this archetypal object. We examine the variability of its wind-sensitive resonance lines, compa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49c0819d325b0e96720d64f32b5d747c
Autor:
Roberto Claudio Gamen, Nidia Morrell, Rodolfo Angeloni, Eduardo Eusebio Fernández Lajús, Rodolfo H. Barbá, Nolan R. Walborn
Publikováno v:
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
Universidad Nacional de La Plata
instacron:UNLP
We present extensive spectroscopic and photometric monitoring of two famous and currently highly active luminous blue variables (LBVs) in the Large Magellanic Cloud (LMC), together with more limited coverage of three further, lesser known members of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::584bf031b982b05f2131a1a1fca5af50
http://sedici.unlp.edu.ar/handle/10915/87653
http://sedici.unlp.edu.ar/handle/10915/87653
Autor:
Jorick S. Vink, Rodolfo H. Barbá, Yaël Nazé, Nidia Morrell, Gregg A. Wade, Stefano Bagnulo, Martino Romaniello, Ian D. Howarth, Nolan R. Walborn
Massive O-type stars play a dominant role in our Universe, but many of their properties remain poorly constrained. In the last decade magnetic fields have been detected in all Galactic members of the distinctive Of?p class, opening the door to a bett
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::080077f413ce628b71943fb7804c5808
Autor:
Jorick S. Vink, Norbert Langer, D. J. Lennon, María Ángel García, Ines Brott, William D. Taylor, Paul A. Crowther, Hugues Sana, Götz Gräfener, J. Maíz Apellániz, Chris Evans, Joachim Puls, A. Herrero, Francisco Najarro, A. de Koter, Norberto Castro, O.H. Ramírez-Agudelo, Nolan R. Walborn, Fabian Schneider, S. E. de Mink, N. J. Grin, Sergio Simón-Díaz, G. Holgado, C. Sabín-Sanjulián
Publikováno v:
Astronomy & Astrophysics, 601:A79. EDP Sciences
The VLT-FLAMES Tarantula Survey has observed hundreds of O-type stars in the 30 Doradus region of the Large Magellanic Cloud (LMC). We study the properties of 105 apparently single O-type dwarfs. To determine stellar and wind parameters, we used the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29a7167412a9d065e2bd40bcbd8d4ffa
Autor:
Hugues Sana, Fabian Schneider, Paul A. Crowther, N. J. Grin, Nevena Markova, G. Gräfener, Norbert Langer, W. D. Taylor, Philip Dufton, O.H. Ramírez-Agudelo, J. Th. van Loon, D. J. Lennon, A. de Koter, S. E. de Mink, Ines Brott, Jorick S. Vink, Frank Tramper, Chris Evans, Francisco Najarro, Nolan R. Walborn, Joachim Puls, A. Herrero
Publikováno v:
NASA Astrophysics Data System
Astronomy & Astrophysics, 600:A82. EDP Sciences
Astronomy & Astrophysics, 600:A82. EDP Sciences
© ESO, 2017. Context. Theoretically, rotation-induced chemical mixing in massive stars has far reaching evolutionary consequences, affecting the sequence of morphological phases, lifetimes, nucleosynthesis, and supernova characteristics. Aims. Using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::837601ed470166ac6a794ea7f3308c1d
http://arxiv.org/abs/1609.00197
http://arxiv.org/abs/1609.00197