Zobrazeno 1 - 10
of 845
pro vyhledávání: '"van de Ven G"'
Autor:
Clontz, C., Seth, A. C., Wang, Z., Souza, S. O., Häberle, M., Nitschai, M. S., Neumayer, N., Latour, M., Milone, A. P., Feldmeier-Krause, A., Kacharov, N., Libralato, M., Bellini, A., van de Ven, G., Alfaro-Cuello, M.
Constraining the helium enhancement in stars is critical for understanding the formation mechanisms of multiple populations in star clusters. However, measuring helium variations for many stars within a cluster remains observationally challenging. We
Externí odkaz:
http://arxiv.org/abs/2412.09783
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:
Fraser-McKelvie, A., van de Sande, J., Gadotti, D. A., Emsellem, E., Brown, T., Fisher, D. B., Martig, M., Bureau, M., Gerhard, O., Battisti, A. J., Bland-Hawthorn, J., Catinella, B., Combes, F., Cortese, L., Croom, S. M., Davis, T. A., Falcón-Barroso, J., Fragkoudi, F., Freeman, K. C., Hayden, M. R., McDermid, R., Ciraulo, B. Mazzilli, Mendel, J. T., Pinna, F., Poci, A., Rutherford, T. H., de Sá-Freitas, C., Silva-Lima, L. A., Valenzuela, L. M., van de Ven, G., Wang, Z., Watts, A. B.
The vertical evolution of galactic discs is governed by the sub-structures within them. We examine the diversity of kinematic sub-structure present in the first 12 galaxies observed from the GECKOS survey, a VLT/MUSE large programme providing a syste
Externí odkaz:
http://arxiv.org/abs/2411.03430
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:
Koller, M., Ziegler, B., Ciocan, B. I., Thater, S., Mendel, J. T., Wisnioski, E., Battisti, A. J., Harborne, K. E., Foster, C., Lagos, C., Croom, S. M., Grasha, K., Papaderos, P., Remus, R. S., Sharma, G., Sweet, S. M., Valenzuela, L. M., van de Ven, G., Zafar, T.
Publikováno v:
A&A 689, A315 (2024)
Star formation rates (SFRs), gas-phase metallicities, and stellar masses are crucial for studying galaxy evolution. The different relations resulting from these properties give insights into the complex interplay of gas inside galaxies and their evol
Externí odkaz:
http://arxiv.org/abs/2406.20017
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:
Taibi, S., Battaglia, G., Roth, M. M., Kamann, S., Iorio, G., Gallart, C., Leaman, R., Skillman, E. D., Kacharov, N., Beasley, M. A., Piña, P. E. Mancera, van de Ven, G.
Publikováno v:
A&A 689, A88 (2024)
The kinematics and chemical composition of stellar populations of different ages provide crucial information about the evolution of a galaxy. We aim to provide such information for IC 1613, an isolated, gas-rich, star-forming dwarf galaxy in the Loca
Externí odkaz:
http://arxiv.org/abs/2402.01631
Autor:
Huppenkothen, D., Ntampaka, M., Ho, M., Fouesneau, M., Nord, B., Peek, J. E. G., Walmsley, M., Wu, J. F., Avestruz, C., Buck, T., Brescia, M., Finkbeiner, D. P., Goulding, A. D., Kacprzak, T., Melchior, P., Pasquato, M., Ramachandra, N., Ting, Y. -S., van de Ven, G., Villar, S., Villar, V. A., Zinger, E.
Machine learning has rapidly become a tool of choice for the astronomical community. It is being applied across a wide range of wavelengths and problems, from the classification of transients to neural network emulators of cosmological simulations, a
Externí odkaz:
http://arxiv.org/abs/2310.12528
We present an observational study of the dark matter fraction in star-forming disk-like galaxies up to redshift $z \sim 2.5$, selected from publicly available integral field spectroscropic surveys: KMOS$^{\rm 3D}$, KGES, and KROSS. To model the $H\al
Externí odkaz:
http://arxiv.org/abs/2309.04541
Autor:
Nitschai, M. S., Neumayer, N., Clontz, C., Häberle, M., Seth, A. C., Husser, T. -O., Kamann, S., Alfaro-Cuello, M., Kacharov, N., Bellini, A., Dotter, A., Dreizler, S., Feldmeier-Krause, A., Latour, M., Libralato, M., Milone, A. P., Pechetti, R., van de Ven, G., Voggel, K., Weisz, Daniel R.
Publikováno v:
ApJ 958 8 (2023)
Omega Centauri ($\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