Zobrazeno 1 - 10
of 1 296
pro vyhledávání: '"Latour M"'
Autor:
Wragg, F., Kamann, S., Saracino, S., Latour, M., Dreizler, S., Martens, S., Seth, A., Vaz, D., van de Ven, G.
Publikováno v:
2024, MNRAS, 535, 781
NGC 5139 ($\omega$ Cen), is the closest candidate of a Nuclear Star Cluster that has been stripped of its host galaxy in the Milky Way. Despite extensive studies through the last decades, many open questions about the cluster remain, including the pr
Externí odkaz:
http://arxiv.org/abs/2411.05680
Autor:
Clontz, C., Seth, A. C., Dotter, A., Häberle, M., Nitschai, M. S., Neumayer, N., Feldmeier-Krause, A., Latour, M., Wang, Z., Souza, S. O., Kacharov, N., Bellini, A., Libralato, M., Pechetti, R., van de Ven, G., Alfaro-Cuello, M.
We present age estimates for over 8100 sub-giant branch (SGB) stars in Omega Centauri ($\omega$ Cen) to study its star formation history. Our large data set, which combines multi-wavelength HST photometry with MUSE metallicities, provides an unpreced
Externí odkaz:
http://arxiv.org/abs/2409.13855
Autor:
Nitschai, M. S., Neumayer, N., Häberle, M., Clontz, C., Seth, A. C., Milone, A. P., Alfaro-Cuello, M., Bellini, A., Dreizler, S., Feldmeier-Krause, A., Husser, T. -O., Kacharov, N., Kamann, S., Latour, M., Libralato, M., van de Ven, G., Voggel, K., Wang, Z.
Publikováno v:
ApJ 970, 152 (2024)
$\omega$ Centauri, the most massive globular cluster in the Milky Way, has long been suspected to be the stripped nucleus of a dwarf galaxy that fell into the Galaxy a long time ago. There is considerable evidence for this scenario including a large
Externí odkaz:
http://arxiv.org/abs/2406.01688
Autor:
Pietrukowicz, P., Latour, M., Soszynski, I., Di Mille, F., King, P. Soto, Angeloni, R., Poleski, R., Udalski, A., Szymanski, M. K., Ulaczyk, K., Kozlowski, S., Skowron, J., Skowron, D. M., Mroz, P., Rybicki, K., Iwanek, P., Wrona, M., Gromadzki, M.
Blue Large-Amplitude Pulsators (BLAPs) are a recently discovered class of short-period pulsating variable stars. In this work, we present new information on these stars based on photometric and spectroscopic data obtained for known and new objects de
Externí odkaz:
http://arxiv.org/abs/2404.16089
Autor:
Nitschai, M. S., Neumayer, N., Clontz, C., Häberle, M., Seth, A. C., Husser, T. -O., Kamann, S., Alfaro-Cuello, M., Kacharov, N., Bellini, A., Dotter, A., Dreizler, S., Feldmeier-Krause, A., Latour, M., Libralato, M., Milone, A. P., Pechetti, R., van de Ven, G., Voggel, K., Weisz, Daniel R.
Publikováno v:
ApJ 958 8 (2023)
Omega Centauri ($\omega$ Cen) is the most massive globular cluster of the Milky Way and has been the focus of many studies that reveal the complexity of its stellar populations and kinematics. However, most previous studies have used photometric and
Externí odkaz:
http://arxiv.org/abs/2309.02503
Autor:
Latour, M., Hämmerich, S., Dorsch, M., Heber, U., Husser, T. -O., Kamann, S., Dreizler, S., Brinchmann, J.
Publikováno v:
A&A 677, A86 (2023)
In this work, we characterize the properties of HB stars in the GCs $\omega$ Cen and NGC 6752. We use dedicated model atmospheres and synthetic spectra grids computed using a hybrid LTE/NLTE modeling approach to fit the MUSE spectra of HB stars hotte
Externí odkaz:
http://arxiv.org/abs/2306.14549
$\omega$ Cen is a rare example of a globular cluster where the iron abundance of the stars spans more than one order of magnitude. Many spectroscopic investigations of its red-giant- and sub-giant- branches have revealed multiple peaks in the iron ab
Externí odkaz:
http://arxiv.org/abs/2109.01540
Publikováno v:
In Thin-Walled Structures 1 August 2024 201 Part A
Autor:
Braga, V. F., Crestani, J., Fabrizio, M., Bono, G., Preston, G. W., Sneden, C., Storm, J., Kamann, S., Latour, M., Lala, H., Lemasle, B., Prudil, Z., Altavilla, G., Chaboyer, B., Dall'Ora, M., Ferraro, I., Gilligan, C. K., Fiorentino, G., Iannicola, G., Inno, L., Kwak, S., Marengo, M., Marinoni, S., Marrese, P. M., Martínez-Vázquez, C. E., Monelli, M., Mullen, J. P., Matsunaga, N., Neeley, J., Stetson, P. B., Valenti, E., Zoccali, M.
We collected the largest spectroscopic catalog of RR Lyrae (RRLs) including $\approx$20,000 high-, medium- and low-resolution spectra for $\approx$10,000 RRLs. We provide the analytical forms of radial velocity curve (RVC) templates. These were built
Externí odkaz:
http://arxiv.org/abs/2107.00923
Autor:
Martocchia, S., Kamann, S., Saracino, S., Usher, C., Bastian1, N., Rejkuba, M., Latour, M., Lardo, C., Cabrera-Ziri, I., Dreizler, S., Kacharov, N., Kozhurina-Platais, V., Larsen, S., Mancino, S., Platais, I., Salaris, M.
Ancient ($>$10 Gyr) globular clusters (GCs) show chemical abundance variations in the form of patterns among certain elements, e.g. N correlates with Na and anti-correlates with O. Recently, N abundance spreads have also been observed in massive star
Externí odkaz:
http://arxiv.org/abs/2009.10023