Zobrazeno 1 - 10
of 2 092
pro vyhledávání: '"Fritz, T"'
Publikováno v:
A&A 689, A190 (2024)
The presence of young massive stars in the Galactic Centre (GC) raises questions about star formation near the black hole Sagittarius A* (Sgr A*). Additionally, the initial mass function (IMF) in this region appears different from the standard Salpet
Externí odkaz:
http://arxiv.org/abs/2406.04166
Autor:
Savino, A., Weisz, D. R., Skillman, E. D., Dolphin, A., Cole, A. A., Kallivayalil, N., Wetzel, A., Anderson, J., Besla, G., Boylan-Kolchin, M., Brown, T. M., Bullock, J. S., Collins, M. L. M., Cooper, M. C., Deason, A. J., Dotter, A. L., Fardal, M., Ferguson, A. M. N., Fritz, T. K., Geha, M. C., Gilbert, K. M., Guhathakurta, P., Ibata, R., Irwin, M. J., Jeon, M., Kirby, E. N., Lewis, G. F., Mackey, D., Majewski, S. R., Martin, N., McConnachie, A., Patel, E., Rich, R. M., Simon, J. D., Sohn, S. T., Tollerud, E. J., van der Marel, R. P.
We present the lifetime star formation histories (SFHs) for six ultra-faint dwarf (UFD; $M_V>-7.0$, $ 4.9<\log_{10}({M_*(z=0)}/{M_{\odot}})<5.5$) satellite galaxies of M31 based on deep color-magnitude diagrams constructed from \textit{Hubble Space T
Externí odkaz:
http://arxiv.org/abs/2305.13360
Publikováno v:
A&A 657, A54 (2022)
We perform a comprehensive determination of the systemic proper motions of 74 dwarf galaxies and dwarf galaxy candidates in the Local Group based on Gaia early data release 3. The outputs of the analysis for each galaxy, including probabilities of me
Externí odkaz:
http://arxiv.org/abs/2106.08819
Autor:
Schultheis, M., Fritz, T. K., Nandakumar, G., Rojas-Arriagada, A., Nogueras-Lara, F., Feldmeier-Krause, A., Gerhard, O., Neumayer, N., Patrick, L. R., Prieto, M. A., Schödel, R., Mastrobuono-Battisti, A., Sormani, M. C.
Publikováno v:
A&A 650, A191 (2021)
The nuclear stellar disc (NSD) is, together with the nuclear star cluster (NSC) and the central massive black hole, one of the main components in the central parts of our Milky Way. However, until recently, only few studies of the stellar content of
Externí odkaz:
http://arxiv.org/abs/2104.10439
Autor:
Ruiz-Lara, T., Gallart, C., Monelli, M., Fritz, T. K., Battaglia, G., Cassisi, S., Aznar, M. Luis, Cabrera, A. V. Russo, Rodríguez-Martín, I., Salazar-González, J. J.
Leo I is considered one of the youngest dwarf spheroidals (dSph) in the Local Group. Its isolation, extended star formation history (SFH), and recent perigalacticon passage (~1 Gyr ago) make Leo~I one of the most interesting nearby stellar systems. H
Externí odkaz:
http://arxiv.org/abs/2012.07863
Autor:
George, A., Fistul, M. V., Gruenewald, M., Kaiser, D., Lehnert, T., Mupparapu, R., Neumann, C., Hübner, U., Schaal, M., Masurkar, N., Reddy, A. L. M., Staude, I., Kaiser, U., Fritz, T., Turchanin, A.
Publikováno v:
npj 2D Mater Appl 5, 15 (2021)
Monolayer transition metal dichalcogenides (TMD) have numerous potential applications in ultrathin electronics and photonics. The exposure of TMD based devices to light generates photo-carriers resulting in an enhanced conductivity, which can be effe
Externí odkaz:
http://arxiv.org/abs/2012.04044
Autor:
Schultheis, M., Rojas-Arriagada, A., Cunha, K., Zoccali, M., Chiappini, C., Queiroz, A. B. A., Minniti, D., Fritz, T., García-Hernández, D. A., Nitschelm, C., Zamora, O., Hasselquist, S., Fernández-Trincado, J. G., Munoz, R. R.
Publikováno v:
A&A 642, A81 (2020)
The Galactic Center region, including the nuclear disk, has until recently been largely avoided in chemical census studies because of extreme extinction and stellar crowding. Making use of the latest APOGEE data release (DR16), we are able for the fi
Externí odkaz:
http://arxiv.org/abs/2008.13687
Autor:
Thorsbro, B., Ryde, N., Rich, R. M., Schultheis, M., Renaud, F., Spitoni, E., Fritz, T. K., Mastrobuono-Battisti, A., Origlia, L., Matteucci, F., Schödel, R.
We present a detailed study of the composition of 20 M giants in the Galactic center with 15 of them confirmed to be in the Nuclear Star Cluster. As a control sample we have also observed 7 M giants in the Milky Way Disk with similar stellar paramete
Externí odkaz:
http://arxiv.org/abs/2003.11085
Autor:
Rusakov, V., Monelli, M., Gallart, C., Fritz, T. K., Ruiz-Lara, T., Bernard, E. J., Cassisi, S.
We present a new derivation of the star formation history (SFH) of the dSph galaxy Fornax in two central regions, characterised by unprecedented precision and age resolution. It reveals that star formation has proceeded in sharp bursts separated by p
Externí odkaz:
http://arxiv.org/abs/2002.09714
Autor:
Gallego-Cano, E., Schödel, R., Nogueras-Lara, F., Dong, H., Shahzamanian, B., Fritz, T. K., Gallego-Calvente, A. T., Neumayer, N.
Publikováno v:
A&A 634, A71 (2020)
The Milky Way nuclear star cluster (MWNSC) is a crucial laboratory for studying the galactic nuclei of other galaxies, but its properties have not been determined unambiguously until now. Aims. We aim to study the size and spatial structure of the MW
Externí odkaz:
http://arxiv.org/abs/2001.08182