Results 11 to 20 of about 12,121 (216)

Second-generation star formation in globular clusters of different masses [PDF]

Monthly Notices of the Royal Astronomical Society, 2021
ABSTRACT By means of three-dimensional hydrodynamical simulations, we investigate the formation of second-generation (SG) stars in young globular clusters of different masses. We consider clusters with a first generation of asymptotic giant branch (AGB) stars with mass 105 and $10^6\, \mathrm{M}_{\odot }$ moving at constant velocity ...
Yaghoobi, A, Calura, F, Rosdahl, Joakim, Haghi, H   +3 more
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The tidal stream generated by the globular cluster NGC 3201 [PDF]

Monthly Notices of the Royal Astronomical Society, 2021
ABSTRACT We detect a tidal stream generated by the globular cluster NGC 3201 extending over ∼140 deg on the sky, using the Gaia DR2 data, with the maximum-likelihood method we presented previously to study the M68 tidal stream. Most of the detected stream is the trailing one, which stretches in the southern Galactic hemisphere and passes
Palau, Carles G., Miralda-Escudé, Jordi
openaire   +3 more sources

Formation and dynamical evolution of multiple stellar generations in globular clusters [PDF]

Monthly Notices of the Royal Astronomical Society, 2008
21 pages, 18 figures.
D'Ercole, Annibale, Vesperini, Enrico, D'Antona, Francesca, McMillan, Stephen L. W., Recchi, Simone   +4 more
openaire   +5 more sources

THE NEXT GENERATION VIRGO CLUSTER SURVEY. VIII. THE SPATIAL DISTRIBUTION OF GLOBULAR CLUSTERS IN THE VIRGO CLUSTER [PDF]

The Astrophysical Journal, 2014
We report on a large-scale study of the distribution of globular clusters (GCs) throughout the Virgo cluster, based on photometry from the Next Generation Virgo Cluster Survey, a large imaging survey covering Virgo's primary subclusters to their virial radii.
Durrell, P.R., Côte, P., Peng, E.W., Blakeslee, J.P., Ferrarese, L., Mihos, J.C., Puzia, T.H., Lançon, A., Liu, C., Zhang, H., Cuillandre, J.-C., McConnachie, A., Jordán, A., Accetta, K., Boissier, S., Boselli, A., Courteau, S., Duc, P.-A., Emsellem, E., Gwyn, S., Mei, S., Taylor, J.E.   +21 more
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Formation of Second Generation Stars in Globular Clusters [PDF]

Monthly Notices of the Royal Astronomical Society, 2019
Abstract By means of grid-based, 3D hydrodynamical simulations we study the formation of second generation (SG) stars in a young globular cluster (GC) of mass 107 M⊙, the possible progenitor of an old GC with a present mass ∼ (1 − 5) 106 M⊙.
F Calura, A D’Ercole, E Vesperini, E Vanzella, A Sollima   +4 more
openaire   +2 more sources

Are there any first-generation stars in globular clusters today? [PDF]

Astronomy & Astrophysics, 2014
Several models compete to explain the abundance properties of stellar populations in globular clusters. One of the main constraints is the present-day ratio of first- and second-generation stars that are currently identified based on their sodium content.
Charbonnel, C, Chantereau, W, Krause, M, Primas, F, Wang, Y   +4 more
openaire   +5 more sources

THE FRACTION OF GLOBULAR CLUSTER SECOND-GENERATION STARS IN THE GALACTIC HALO [PDF]

The Astrophysical Journal, 2010
5 pages, 3 figures, Accepted for publication in The Astrophysical Journal ...
Vesperini, Enrico, McMillan, Stephen L. W., D'Antona, Francesca, D'Ercole, Annibale   +3 more
openaire   +2 more sources

Structural Parameters for Globular Clusters in M31 and Generalizations for the Fundamental Plane [PDF]

The Astronomical Journal, 2007
The structures of globular clusters (GCs) reflect their dynamical states and past histories. High-resolution imaging allows the exploration of morphologies of clusters in other galaxies. Surface brightness profiles from new Hubble Space Telescope observations of 34 GCs in M31 are presented, together with fits of several different structural models to ...
Barmby, Pauline, McLaughlin, Dean E., Harris, William E., Harris, Gretchen L H, Forbes, Duncan   +4 more
openaire   +3 more sources

Properties of stellar generations in globular clusters and relations with global parameters [PDF]

Astronomy and Astrophysics, 2010
24 pages (+2 pages of bibliography and 5 of Appendix), 19 figures, accepted for publication on Astronomy and ...
Carretta, Eugenio, Bragaglia, Angela, Gratton, Raffaele, Recio-Blanco, Alejandra, Lucatello, Sara, D'Orazi, Valentina, Cassisi, Santi   +6 more
openaire   +2 more sources

General Properties of the Two Groups of Globular Clusters and Their Variable Stars [PDF]

Symposium - International Astronomical Union, 1975
The dependences of the numbers of variable stars in globular clusters on the chemical composition are studied. For given metallicity the numbers of RR Lyrae stars reduced to some definite total number of stars in the cluster are different for the two groups of globular clusters introduced by Mironov.
A. V. Mironov, N. N. Samus’
openaire   +1 more source