Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Göttgens, Fabian"'
Autor:
Martens, Sven, Kamann, Sebastian, Dreizler, Stefan, Göttgens, Fabian, Husser, Tim-Oliver, Latour, Marilyn, Balakina, Elena, Krajnović, Davor, Pechetti, Renuka, Weilbacher, Peter M.
Publikováno v:
A&A 671, A106 (2023)
The formation process of multiple populations in globular clusters is still up for debate. Kinematic differences between the populations are particularly interesting in this respect, because they allow us to distinguish between single-epoch formation
Externí odkaz:
http://arxiv.org/abs/2301.08675
Autor:
Paduano, Alessandro, Bahramian, Arash, Miller-Jones, James C. A., Kawka, Adela, Göttgens, Fabian, Strader, Jay, Chomiuk, Laura, Kamann, Sebastian, Dreizler, Stefan, Heinke, Craig O., Husser, Tim-Oliver, Maccarone, Thomas J., Tremou, Evangelia, Zhao, Yue
The Galactic globular cluster NGC 3201 is the first Galactic globular cluster observed to host dynamically-confirmed stellar-mass black holes, containing two confirmed and one candidate black hole. This result indicates that globular clusters can ret
Externí odkaz:
http://arxiv.org/abs/2201.01418
Autor:
Göttgens, Fabian, Kamann, Sebastian, Baumgardt, Holger, Dreizler, Stefan, Giesers, Benjamin, Husser, Tim-Oliver, Brok, Mark den, Fétick, Romain, Krajnović, Davor, Weilbacher, Peter M.
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:
http://arxiv.org/abs/2108.11393
Autor:
Husser, Tim-Oliver, Latour, Marilyn, Brinchmann, Jarle, Dreizler, Stefan, Giesers, Benjamin, Göttgens, Fabian, Kamann, Sebastian, Roth, Martin M., Weilbacher, Peter M., Wendt, Martin
Publikováno v:
A&A 635, A114 (2020)
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:
http://arxiv.org/abs/2001.07725
Autor:
Kamann, Sebastian, Bastian, Nate, Gossage, Seth, Baade, Dietrich, Cabrera-Ziri, Ivan, Da Costa, Gary, de Mink, Selma E., Georgy, Cyril, Giesers, Benjamin, Göttgens, Fabian, Hilker, Michael, Husser, Tim-Oliver, Lardo, Carmela, Larsen, Søren, Mackey, Dougal, Martocchia, Silvia, Mucciarelli, Alessio, Platais, Imants, Roth, Martin M., Salaris, Maurizio, Usher, Christopher, Yong, David
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:
http://arxiv.org/abs/2001.01731
Autor:
Kamann, Sebastian, Dalessandro, Emanuele, Bastian, Nate, Brinchmann, Jarle, Brok, Mark den, Dreizler, Stefan, Giesers, Benjamin, Göttgens, Fabian, Husser, Tim-Oliver, Krajnović, Davor, van de Ven, Glenn, Watkins, Laura L., Wisotzki, Lutz
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:
http://arxiv.org/abs/1912.06158
Autor:
Kamann, Sebastian, Giesers, Benjamin, Bastian, Nate, Brinchmann, Jarle, Dreizler, Stefan, Göttgens, Fabian, Husser, Tim-Oliver, Latour, Marilyn, Weilbacher, Peter M., Wisotzki, Lutz
Publikováno v:
A&A 635, A65 (2020)
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:
http://arxiv.org/abs/1912.01627
Autor:
Göttgens, Fabian, Husser, Tim-Oliver, Kamann, Sebastian, Dreizler, Stefan, Giesers, Benjamin, Kollatschny, Wolfram, Weilbacher, Peter M., Roth, Martin M., Wendt, Martin
Publikováno v:
A&A 631, A118 (2019)
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:
http://arxiv.org/abs/1909.05872
Autor:
Giesers, Benjamin, Kamann, Sebastian, Dreizler, Stefan, Husser, Tim-Oliver, Askar, Abbas, Göttgens, Fabian, Brinchmann, Jarle, Latour, Marilyn, Weilbacher, Peter M., Wendt, Martin, Roth, Martin M.
Publikováno v:
A&A 632, A3 (2019)
We utilize multi-epoch MUSE spectroscopy to study binaries in the core of NGC 3201. Our sample consists of 3553 stars with 54883 spectra in total comprising 3200 main-sequence stars up to 4 magnitudes below the turn-off. Each star in our sample has b
Externí odkaz:
http://arxiv.org/abs/1909.04050
Autor:
Göttgens, Fabian, Weilbacher, Peter M., Roth, Martin M., Dreizler, Stefan, Giesers, Benjamin, Husser, Tim-Oliver, Kamann, Sebastian, Brinchmann, Jarle, Kollatschny, Wolfram, Monreal-Ibero, Ana, Schmidt, Kasper B., Wendt, Martin, Wisotzki, Lutz, Bacon, Roland
Publikováno v:
A&A 626, A69 (2019)
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:
http://arxiv.org/abs/1904.11515