Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Benjamin Giesers"'
Autor:
Maurizio Salaris, M. Latour, Nate Bastian, Stefan Dreizler, N. Kacharov, Sebastian Kamann, Benjamin Giesers, Christopher Usher, S. Saracino, S. Martocchia, I. Cabrera-Ziri, C. Lardo, T. O. Husser
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 498:4472-4480
Nearly all of the well studied ancient globular clusters (GCs), in the Milky Way and in nearby galaxies, show star-to-star variations in specific elements (e.g., He, C, N, O, Na, Al), known as "multiple populations" (MPs). However, MPs are not restri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38c76c67ccabbbc327ca991d0727b971
https://doi.org/10.1093/mnras/staa2748
https://doi.org/10.1093/mnras/staa2748
Autor:
Stefan Dreizler, Benjamin Giesers, Peter M. Weilbacher, Fabian Göttgens, Sebastian Kamann, Mark den Brok, Tim-Oliver Husser, Romain Fétick, Holger Baumgardt, Davor Krajnović
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2021, 507 (4), pp.4788-4803. ⟨10.1093/mnras/stab2449⟩
Monthly Notices of the Royal Astronomical Society, 2021, 507 (4), pp.4788-4803. ⟨10.1093/mnras/stab2449⟩
We use spectra observed with the integral-field spectrograph MUSE to reveal the central kinematics of the Galactic globular cluster Messier 80 (M80, NGC 6093). Using observations obtained with the recently commissioned narrow-field mode of MUSE, we a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ea337ad0b7e014e5ed3d42d71aa0c4b
https://hal.science/hal-03565665/file/stab2449.pdf
https://hal.science/hal-03565665/file/stab2449.pdf
Autor:
Tim-Oliver Husser, Stefan Dreizler, Jarle Brinchmann, Fabian Göttgens, Lutz Wisotzki, P. M. Weilbacher, Sebastian Kamann, M. Latour, Nate Bastian, Benjamin Giesers
Publikováno v:
Astronomy & Astrophysics, 635, A65
We investigate the binary content of the two stellar populations that coexist in the globular cluster NGC 3201. Previous studies of binary stars in globular clusters have reported higher binary fractions in their first populations (P1, having field-l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c7e0d4839aa23667f9c52d775da7257
https://ui.adsabs.harvard.edu/abs/2020A&A...635A..65K
https://ui.adsabs.harvard.edu/abs/2020A&A...635A..65K
Autor:
Martin M. Roth, M. Latour, Tim-Oliver Husser, Fabian Göttgens, Jarle Brinchmann, Benjamin Giesers, Stefan Dreizler, Peter M. Weilbacher, Sebastian Kamann, Martin Wendt
Publikováno v:
Astronomy & Astrophysics, 635, A114
Aims. We use the spectra of more than 30,000 red giant branch (RGB) stars in 25 globular clusters (GC), obtained within the MUSE survey of Galactic globular clusters, to calibrate the Ca II triplet (CaT) metallicity relation and derive metallicities
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::128e84048a4e5de333d64f2cf5fc4246
http://arxiv.org/abs/2001.07725
http://arxiv.org/abs/2001.07725
Autor:
Maurizio Salaris, S. S. Larsen, S. Martocchia, Sebastian Kamann, Alessio Mucciarelli, Benjamin Giesers, Martin Roth, David Yong, S. Gossage, Imants Platais, Fabian Göttgens, Nate Bastian, I. Cabrera-Ziri, T. O. Husser, G. S. Da Costa, Dietrich Baade, Cyril Georgy, S. E. de Mink, Carmela Lardo, Michael Hilker, Christopher Usher, D. Mackey
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 492, 2177-2192
Monthly Notices of the Royal Astronomical Society, 492, 2, pp. 2177-2192
Monthly Notices of the Royal Astronomical Society, 492(2):2177-2192. Oxford University Press
Monthly Notices of the Royal Astronomical Society, 492, 2, pp. 2177-2192
Monthly Notices of the Royal Astronomical Society, 492(2):2177-2192. Oxford University Press
We present a detailed study of stellar rotation in the massive 1.5 Gyr old cluster NGC 1846 in the Large Magellanic Cloud. Similar to other clusters at this age, NGC 1846 shows an extended main sequence turn-off (eMSTO), and previous photometric stud
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::232da0553f825285a7e181494446f515
http://hdl.handle.net/2066/216625
http://hdl.handle.net/2066/216625
Autor:
Nate Bastian, Sebastian Kamann, G. van de Ven, Benjamin Giesers, Fabian Göttgens, Laura L. Watkins, Lutz Wisotzki, Stefan Dreizler, Davor Krajnović, Emanuele Dalessandro, Jarle Brinchmann, T. O. Husser, M. den Brok
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the RAS (0035-8711), 492(1), 966-977
Monthly Notices of the RAS (0035-8711), 492(1), 966-977
We combine MUSE spectroscopy and Hubble Space Telescope ultraviolet (UV) photometry to perform a study of the chemistry and dynamics of the Galactic globular cluster Messier 80 (M80, NGC 6093). Previous studies have revealed three stellar populations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::709623af0daba456d852e119bd9d9c2c
https://hdl.handle.net/1887/84738
https://hdl.handle.net/1887/84738
Autor:
Tim-Oliver Husser, Jarle Brinchmann, Martin Roth, Peter M. Weilbacher, Sebastian Kamann, Ana Monreal-Ibero, Martin Wendt, Stefan Dreizler, Benjamin Giesers, Fabian Göttgens, Lutz Wisotzki, Kasper B. Schmidt, Roland Bacon, Wolfram Kollatschny
Publikováno v:
Astronomy & Astrophysics
Astronomy and Astrophysics (0004-6361), 626, A69
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2019, 626, ⟨10.1051/0004-6361/201935221⟩
Astronomy and Astrophysics (0004-6361), 626, A69
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2019, 626, ⟨10.1051/0004-6361/201935221⟩
A nova is a cataclysmic event on the surface of a white dwarf in a binary system that increases the overall brightness by several orders of magnitude. Although binary systems with a white dwarf are expected to be overabundant in globular clusters (GC
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb0f7bfce303f8538b3cf2006c7407b2
http://arxiv.org/abs/1904.11515
http://arxiv.org/abs/1904.11515
Autor:
Nate Bastian, Peter M. Weilbacher, Stefan Dreizler, N. S. Molinski, Martin Wendt, T. O. Husser, Benjamin Giesers, Fabian Göttgens, M. Latour, Jarle Brinchmann, Sebastian Kamann
Publikováno v:
Astronomy and Astrophysics (0004-6361), 631, A14
Galactic globular clusters (GCs) are now known to host multiple populations displaying particular abundance variations. The different populations within a GC can be well distinguished following their position in the pseudo two-colors diagrams, also r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1b7cb93d8cf8026c0ef4e4469347e7f
Autor:
Fabian Göttgens, Martin M. Roth, Stefan Dreizler, Martin Wendt, Benjamin Giesers, Peter M. Weilbacher, Tim-Oliver Husser, Abbas Askar, Jarle Brinchmann, Sebastian Kamann, M. Latour
Publikováno v:
Astronomy and Astrophysics (0004-6361), 632, A3
We utilise multi-epoch MUSE spectroscopy to study binary stars in the core of the Galactic globular cluster NGC 3201. Our sample consists of 3553 stars with 54 883 spectra in total comprising 3200 main-sequence stars up to 4 magnitudes below the turn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::798917dda2786006075d025907f25b8a
Autor:
Martin Wendt, Wolfram Kollatschny, Peter M. Weilbacher, Sebastian Kamann, Tim-Oliver Husser, Benjamin Giesers, Fabian Göttgens, Stefan Dreizler, Martin M. Roth
Globular clusters produce many exotic stars due to a much higher frequency of dynamical interactions in their dense stellar environments. Some of these objects were observed together with several hundred thousands other stars in our MUSE survey of 26
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::875e578ec7d304d6f66ce9fc62a335aa