Kamann, Sebastian

[["dc.bibliographiccitation.firstpage","A133"],["dc.bibliographiccitation.journal","Astronomy and Astrophysics"],["dc.bibliographiccitation.volume","607"],["dc.contributor.author","Wendt, Martin"],["dc.contributor.author","Husser, Tim-Oliver"],["dc.contributor.author","Kamann, Sebastian"],["dc.contributor.author","Monreal-Ibero, Ana"],["dc.contributor.author","Richter, Philipp"],["dc.contributor.author","Brinchmann, Jarle"],["dc.contributor.author","Dreizler, Stefan"],["dc.contributor.author","Weilbacher, Peter M."],["dc.contributor.author","Wisotzki, Lutz"],["dc.date.accessioned","2020-12-10T18:11:34Z"],["dc.date.available","2020-12-10T18:11:34Z"],["dc.date.issued","2017"],["dc.identifier.doi","10.1051/0004-6361/201629816"],["dc.identifier.eissn","1432-0746"],["dc.identifier.issn","0004-6361"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/74062"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Mapping diffuse interstellar bands in the local ISM on small scales via MUSE 3D spectroscopy"],["dc.title.alternative","A pilot study based on globular cluster NGC 6397"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","3090"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Monthly Notices of the Royal Astronomical Society"],["dc.bibliographiccitation.lastpage","3100"],["dc.bibliographiccitation.volume","464"],["dc.contributor.author","Askar, Abbas"],["dc.contributor.author","Bianchini, Paolo"],["dc.contributor.author","de Vita, Ruggero"],["dc.contributor.author","Giersz, Mirek"],["dc.contributor.author","Hypki, Arkadiusz"],["dc.contributor.author","Kamann, Sebastian"],["dc.date.accessioned","2018-11-07T10:29:09Z"],["dc.date.available","2018-11-07T10:29:09Z"],["dc.date.issued","2017"],["dc.description.abstract","We describe the dynamical evolution of a unique type of dark star cluster model in which the majority of the cluster mass at Hubble time is dominated by an intermediate-mass black hole (IMBH). We analysed results from about 2000 star cluster models (Survey Database I) simulated using the Monte Carlo code MOnte Carlo Cluster simulAtor and identified these dark star cluster models. Taking one of these models, we apply the method of simulating realistic ` mock observations' by utilizing the Cluster simulatiOn Comparison with ObservAtions (COCOA) and Simulating Stellar Cluster Observation (SISCO) codes to obtain the photometric and kinematic observational properties of the dark star cluster model at 12 Gyr. We find that the perplexing Galactic globular cluster NGC6535 closely matches the observational photometric and kinematic properties of the dark star cluster model presented in this paper. Based on our analysis and currently observed properties of NGC6535, we suggest that this globular cluster could potentially harbour an IMBH. If it exists, the presence of this IMBH can be detected robustly with proposed kinematic observations of NGC6535."],["dc.identifier.doi","10.1093/mnras/stw2573"],["dc.identifier.isi","000393647600046"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/43583"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","PUB_WoS_Import"],["dc.publisher","Oxford Univ Press"],["dc.relation.issn","1365-2966"],["dc.relation.issn","0035-8711"],["dc.title","MOCCA-SURVEY Database I: Is NGC 6535 a dark star cluster harbouring an IMBH?"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","A3"],["dc.bibliographiccitation.journal","Astronomy and Astrophysics"],["dc.bibliographiccitation.volume","618"],["dc.contributor.author","Roth, Martin M."],["dc.contributor.author","Sandin, Christer"],["dc.contributor.author","Kamann, Sebastian"],["dc.contributor.author","Husser, Tim-Oliver"],["dc.contributor.author","Weilbacher, Peter M."],["dc.contributor.author","Monreal-Ibero, Ana"],["dc.contributor.author","Bacon, Roland"],["dc.contributor.author","den Brok, Mark"],["dc.contributor.author","Dreizler, Stefan"],["dc.contributor.author","Kelz, Andreas"],["dc.contributor.author","Marino, Raffaella Anna"],["dc.contributor.author","Steinmetz, Matthias"],["dc.date.accessioned","2020-12-10T18:11:40Z"],["dc.date.available","2020-12-10T18:11:40Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1051/0004-6361/201833007"],["dc.identifier.eissn","1432-0746"],["dc.identifier.issn","0004-6361"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/74101"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","MUSE crowded field 3D spectroscopy in NGC 300"],["dc.title.alternative","I. First results from central fields"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1689"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Monthly Notices of the Royal Astronomical Society"],["dc.bibliographiccitation.lastpage","1695"],["dc.bibliographiccitation.volume","480"],["dc.contributor.author","Kamann, S"],["dc.contributor.author","Bastian, N"],["dc.contributor.author","Husser, T-O"],["dc.contributor.author","Martocchia, S"],["dc.contributor.author","Usher, C"],["dc.contributor.author","den Brok, M"],["dc.contributor.author","Dreizler, S"],["dc.contributor.author","Kelz, A"],["dc.contributor.author","Krajnović, D"],["dc.contributor.author","Richard, J"],["dc.contributor.author","Steinmetz, M"],["dc.contributor.author","Weilbacher, P M"],["dc.date.accessioned","2020-12-10T18:19:29Z"],["dc.date.available","2020-12-10T18:19:29Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1093/mnras/sty1958"],["dc.identifier.eissn","1365-2966"],["dc.identifier.issn","0035-8711"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/75266"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Cluster kinematics and stellar rotation in NGC 419 with MUSE and adaptive optics"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","4788"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Monthly Notices of the Royal Astronomical Society"],["dc.bibliographiccitation.lastpage","4803"],["dc.bibliographiccitation.volume","507"],["dc.contributor.author","Göttgens, Fabian"],["dc.contributor.author","Kamann, Sebastian"],["dc.contributor.author","Baumgardt, Holger"],["dc.contributor.author","Dreizler, Stefan"],["dc.contributor.author","Giesers, Benjamin"],["dc.contributor.author","Husser, Tim-Oliver"],["dc.contributor.author","den Brok, Mark"],["dc.contributor.author","Fétick, Romain"],["dc.contributor.author","Krajnovic, Davor"],["dc.contributor.author","Weilbacher, Peter M"],["dc.date.accessioned","2021-12-01T09:23:51Z"],["dc.date.available","2021-12-01T09:23:51Z"],["dc.date.issued","2021"],["dc.description.abstract","ABSTRACT We use spectra observed with the integral-field spectrograph Multi Unit Spectroscopic Explorer (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 are able to analyse 932 stars in the central 7.5 arcsec by 7.5 arcsec of the cluster for which no useful spectra previously existed. Mean radial velocities of individual stars derived from the spectra are compared to predictions from axisymmetric Jeans models, resulting in radial profiles of the velocity dispersion, the rotation amplitude, and the mass-to-light ratio. The new data allow us to search for an intermediate-mass black hole (IMBH) in the centre of the cluster. Our Jeans model finds two similarly probable solutions around different dynamical cluster centres. The first solution has a centre close to the photometric estimates available in the literature and does not need an IMBH to fit the observed kinematics. The second solution contains a location of the cluster centre that is offset by about 2.4 arcsec from the first one and it needs an IMBH mass of 600^{+1700}_{-1400}~\\text{M}_\\odot {}$. N-body models support the existence of an IMBH in this cluster with a mass of up to 6000 M⊙ in this cluster, although models without an IMBH provide a better fit to the observed surface brightness profile. They further indicate that the cluster has lost nearly all stellar-mass black holes. We further discuss the detection of two potential high-velocity stars with radial velocities of 80–90 $\\text{km}\\, \\text{s}^{-1}$ relative to the cluster mean."],["dc.description.abstract","ABSTRACT We use spectra observed with the integral-field spectrograph Multi Unit Spectroscopic Explorer (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 are able to analyse 932 stars in the central 7.5 arcsec by 7.5 arcsec of the cluster for which no useful spectra previously existed. Mean radial velocities of individual stars derived from the spectra are compared to predictions from axisymmetric Jeans models, resulting in radial profiles of the velocity dispersion, the rotation amplitude, and the mass-to-light ratio. The new data allow us to search for an intermediate-mass black hole (IMBH) in the centre of the cluster. Our Jeans model finds two similarly probable solutions around different dynamical cluster centres. The first solution has a centre close to the photometric estimates available in the literature and does not need an IMBH to fit the observed kinematics. The second solution contains a location of the cluster centre that is offset by about 2.4 arcsec from the first one and it needs an IMBH mass of 600^{+1700}_{-1400}~\\text{M}_\\odot {}$. N-body models support the existence of an IMBH in this cluster with a mass of up to 6000 M⊙ in this cluster, although models without an IMBH provide a better fit to the observed surface brightness profile. They further indicate that the cluster has lost nearly all stellar-mass black holes. We further discuss the detection of two potential high-velocity stars with radial velocities of 80–90 $\\text{km}\\, \\text{s}^{-1}$ relative to the cluster mean."],["dc.identifier.doi","10.1093/mnras/stab2449"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/94772"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-478"],["dc.relation.eissn","1365-2966"],["dc.relation.issn","0035-8711"],["dc.rights.uri","https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model"],["dc.title","Central kinematics of the Galactic globular cluster M80"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","A117"],["dc.bibliographiccitation.journal","Astronomy & Astrophysics"],["dc.bibliographiccitation.volume","658"],["dc.contributor.author","González-Torà, G."],["dc.contributor.author","Urbaneja, M. A."],["dc.contributor.author","Przybilla, N."],["dc.contributor.author","Dreizler, S."],["dc.contributor.author","Roth, M. M."],["dc.contributor.author","Kamann, S."],["dc.contributor.author","Castro, N."],["dc.date.accessioned","2022-04-01T10:02:43Z"],["dc.date.available","2022-04-01T10:02:43Z"],["dc.date.issued","2022"],["dc.description.abstract","Aims. A quantitative spectral analysis of BA-type supergiants and bright giants in an inner spiral arm region of the nearby spiral galaxy NGC 300 is presented, based on observations with the Multi Unit Spectroscopic Explorer (MUSE) on the European Southern Obsevatory, Very Large Telescope. The flux-weighted gravity–luminosity relationship (FGLR), a stellar spectroscopic distance determination method for galaxies, is extended towards stars at lower luminosities. Methods. Point spread function fitting 3D spectroscopy was performed with PampelMUSE on the datacube. The 16 stars with the highest signal-to-noise ratios are classified with regard to their spectral type and luminosity class using Galactic templates. They were analysed using hybrid non-local thermodynamic equilibrium model spectra to fit the strongest observed hydrogen, helium, and metal lines in the intermediate-resolution spectra. Supplemented by photometric data, this facilitates fundamental stellar parameters and interstellar reddening which have yet to be determined. Results. Effective temperatures, surface gravities, reddening E ( B − V ), bolometric magnitudes and luminosities, as well as radii and masses are presented for the sample stars. The majority of the objects follow the FGLR as established from more luminous BA-type supergiants in NGC 300. An increase in the scatter in the flux-weighted gravity–luminosity plane is observed at these lower luminosities, which is in line with predictions from population synthesis models."],["dc.identifier.doi","10.1051/0004-6361/202142372"],["dc.identifier.pii","aa42372-21"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/105989"],["dc.notes.intern","DOI-Import GROB-530"],["dc.relation.eissn","1432-0746"],["dc.relation.issn","0004-6361"],["dc.title","MUSE crowded field 3D spectroscopy in NGC 300"],["dc.title.alternative","II. Quantitative spectroscopy of BA-type supergiants"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","966"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Monthly Notices of the Royal Astronomical Society"],["dc.bibliographiccitation.lastpage","977"],["dc.bibliographiccitation.volume","492"],["dc.contributor.author","Kamann, S"],["dc.contributor.author","Dalessandro, E"],["dc.contributor.author","Bastian, N"],["dc.contributor.author","Brinchmann, J"],["dc.contributor.author","den Brok, M"],["dc.contributor.author","Dreizler, S"],["dc.contributor.author","Giesers, B"],["dc.contributor.author","Göttgens, F"],["dc.contributor.author","Husser, T-O"],["dc.contributor.author","Krajnović, D"],["dc.contributor.author","van de Ven, G"],["dc.contributor.author","Watkins, L L"],["dc.contributor.author","Wisotzki, L"],["dc.date.accessioned","2020-12-10T18:19:32Z"],["dc.date.available","2020-12-10T18:19:32Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1093/mnras/stz3506"],["dc.identifier.eissn","1365-2966"],["dc.identifier.issn","0035-8711"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/75284"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","The peculiar kinematics of the multiple populations in the globular cluster Messier 80 (NGC 6093)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","4472"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Monthly Notices of the Royal Astronomical Society"],["dc.bibliographiccitation.lastpage","4480"],["dc.bibliographiccitation.volume","498"],["dc.contributor.author","Saracino, S"],["dc.contributor.author","Kamann, S"],["dc.contributor.author","Usher, C"],["dc.contributor.author","Bastian, N"],["dc.contributor.author","Martocchia, S"],["dc.contributor.author","Lardo, C"],["dc.contributor.author","Latour, M"],["dc.contributor.author","Cabrera-Ziri, I"],["dc.contributor.author","Dreizler, S"],["dc.contributor.author","Giesers, B"],["dc.contributor.author","Husser, T-O"],["dc.contributor.author","Kacharov, N"],["dc.contributor.author","Salaris, M"],["dc.date.accessioned","2021-04-14T08:31:37Z"],["dc.date.available","2021-04-14T08:31:37Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1093/mnras/staa2748"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/83657"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","1365-2966"],["dc.relation.issn","0035-8711"],["dc.title","Leveraging HST with MUSE – I. Sodium abundance variations within the 2-Gyr-old cluster NGC 1978"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","2"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Monthly Notices of the Royal Astronomical Society"],["dc.bibliographiccitation.lastpage","18"],["dc.bibliographiccitation.volume","452"],["dc.contributor.author","Krajnovic, Davor"],["dc.contributor.author","Weilbacher, Peter M."],["dc.contributor.author","Urrutia, Tanya"],["dc.contributor.author","Emsellem, Eric"],["dc.contributor.author","Carollo, C. Marcella"],["dc.contributor.author","Shirazi, Maryam"],["dc.contributor.author","Bacon, Roland"],["dc.contributor.author","Contini, Thierry"],["dc.contributor.author","Epinat, Benoit"],["dc.contributor.author","Kamann, Sebastian"],["dc.contributor.author","Martinsson, Thomas"],["dc.contributor.author","Steinmetz, Matthias"],["dc.date.accessioned","2018-11-07T09:52:33Z"],["dc.date.available","2018-11-07T09:52:33Z"],["dc.date.issued","2015"],["dc.description.abstract","Multi-Unit Spectroscopic Explorer (MUSE) observations of NGC 5813 reveal a complex structure in the velocity dispersion map, previously hinted at by SAURON observations. The structure is reminiscent of velocity dispersion maps of galaxies comprising two counter-rotating discs, and might explain the existence of the kinematically distinct core (KDC). Further evidence for two counter-rotating components comes from the analysis of the higher moments of the stellar line-of-sight velocity distributions and fitting MUSE spectra with two separate Gaussian line-of-sight velocity distributions. The emission-line kinematics show evidence of being linked to the present cooling flows and the buoyant cavities seen in X-rays. We detect ionized gas in a nuclear disc-like structure, oriented like the KDC, which is, however, not directly related to the KDC. We build an axisymmetric Schwarzschild dynamical model, which shows that the MUSE kinematics can be reproduced well with two counter-rotating orbit families, characterized by relatively low angular momentum components, but clearly separated in integral phase space and with radially varying contributions. The model indicates that the counter-rotating components in NGC 5813 are not thin discs, but dynamically hot structures. Our findings give further evidence that KDCs in massive galaxies should not necessarily be considered as structurally or dynamically decoupled regions, but as the outcomes of the mixing of different orbital families, where the balance in the distribution of mass of the orbital families is crucial. We discuss the formation of the KDC in NGC 5813 within the framework of gas accretion, binary mergers and formation of turbulent thick discs from cold streams at high redshift."],["dc.identifier.doi","10.1093/mnras/stv958"],["dc.identifier.isi","000360851100001"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/36151"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Oxford Univ Press"],["dc.relation.issn","1365-2966"],["dc.relation.issn","0035-8711"],["dc.title","Unveiling the counter-rotating nature of the kinematically distinct core in NGC 5813 with MUSE"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","L15"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Monthly notices of the Royal Astronomical Society. Letters"],["dc.bibliographiccitation.lastpage","L19"],["dc.bibliographiccitation.volume","475"],["dc.contributor.author","Giesers, Benjamin"],["dc.contributor.author","Dreizler, Stefan"],["dc.contributor.author","Husser, Tim-Oliver"],["dc.contributor.author","Kamann, Sebastian"],["dc.contributor.author","Anglada Escudé, Guillem"],["dc.contributor.author","Brinchmann, Jarle"],["dc.contributor.author","Carollo, C Marcella"],["dc.contributor.author","Roth, Martin M"],["dc.contributor.author","Weilbacher, Peter M"],["dc.contributor.author","Wisotzki, Lutz"],["dc.date.accessioned","2020-12-10T18:19:23Z"],["dc.date.available","2020-12-10T18:19:23Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1093/mnrasl/slx203"],["dc.identifier.eissn","1745-3933"],["dc.identifier.issn","1745-3925"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/75230"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","A detached stellar-mass black hole candidate in the globular cluster NGC 3201"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]