Zobrazeno 1 - 10
of 28
pro vyhledávání: '"F. F. S. Maia"'
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 510:5695-5724
A number of stellar open cluster (OC) pairs in the Milky Way occupy similar positions in the phase space (coordinates, parallax and proper motions) and therefore may constitute physically interacting systems. The characterization of such objects base
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::587a1db92825ea607b4bc0fb67b3930b
https://doi.org/10.1093/mnras/stab3807
https://doi.org/10.1093/mnras/stab3807
Most stars in our Galaxy form in stellar aggregates, which can become long-lived structures called open clusters (OCs). Along their dynamical evolution, their gradual depletion leave some imprints on their structure. In this work, we employed astrome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41edb0a571cd60499ba71aba640c26eb
Autor:
F. A. Ferreira, Natalia A. Drake, Laura Magrini, J. R. P. da Silva, F. F. S. Maia, N. Holanda, W. J. B. Corradi, C. B. Pereira
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 508:5786-5801
We present the results of a chemical analysis of fast and anomalous rotator giants members of the young open cluster NGC 6124. For this purpose, we carried out abundances of the mixing sensitive species such as Li, C, N, Na, and 12C/13C isotopic rati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a55670d326dd595a14c38c99ef7b8e50
https://doi.org/10.1093/mnras/stab2836
https://doi.org/10.1093/mnras/stab2836
Autor:
E Bica, F F S Maia, R A P Oliveira, B Dias, J F C Santos, J P Rocha, L Kerber, J F Gardin, T Armond, M C Parisi, S O Souza, B Barbuy
We present the analysis of three faint clusters of the Small Magellanic Cloud RZ82, HW42 and RZ158. We employed the SOAR telescope instrument SAM with adaptive optics, allowing us to reach to V~23-24 mag, unprecedentedly, a depth sufficient to measur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd1cad83c4f3e7e375a1fdcde98662f9
http://arxiv.org/abs/2209.05532
http://arxiv.org/abs/2209.05532
Autor:
Raphael Hirschi, L. Muniz, Leandro Kerber, Beatriz Barbuy, Marco Pignatari, E. Depagne, Sergio Ortolani, E. Cantelli, F. F. S. Maia, Eduardo Luiz Damiani Bica, Susana O. Souza, Cristina Chiappini, Gabriele Cescutti
Publikováno v:
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
NGC 6522 is a moderately metal-poor bulge globular cluster ([Fe/H]$\sim$$-$1.0), and it is a well-studied representative among a number of moderately metal-poor blue horizontal branch clusters located in the bulge. The NGC 6522 abundance pattern can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a473094d88ee19a9e8bb76107fe4e7f6
http://hdl.handle.net/11577/3414037
http://hdl.handle.net/11577/3414037
Autor:
Beatriz Barbuy, Sergio Ortolani, Santi Cassisi, F. F. S. Maia, Stefano O. Souza, Eduardo Luiz Damiani Bica, Leandro Kerber, R. A. P. Oliveira, Angeles Pérez-Villegas
Context. RR Lyrae stars are useful standard candles allowing one to derive accurate distances for old star clusters. Based on the recent catalogues from OGLE-IV and Gaia Early Data Release 3 (EDR3), the distances can be improved for a few bulge globu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7524a232e907fb716786bb087f67d573
We report the discovery of 34 new open clusters and candidates as a result of a systematic search carried out in 200 adjacent fields of 1x1 square degrees area projected towards the Galactic bulge, using Gaia DR2 data. The objects were identified and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ce15d6e89415c5abf37a267e35f9055
In this work, we investigate the dynamical properties of 38 Galactic open clusters: 34 of them are located at low Galactic latitudes (|b| < 10$^{\circ}$) and are projected against dense stellar fields; the other 4 comparison objects present clearer c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9e035060f1971fcd7e798c7f5c027af
http://arxiv.org/abs/2010.04825
http://arxiv.org/abs/2010.04825
Autor:
Eduardo Luiz Damiani Bica, F. F. S. Maia, Beatriz Barbuy, João F. C. Santos, Leandro Kerber, Bruno Dias, Pieter Westera, Raphael A. P. Oliveira
We present a catalog of star clusters, associations, and related extended objects in the Small Magellanic Cloud (SMC) and the Magellanic Bridge with 2741 entries, a factor 2 more than a previous version from a decade ago. Literature data up until 201
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0867a96a4cb34345e1c1b64ab6d440a3
http://repositorio.unab.cl/xmlui/handle/ria/20312
http://repositorio.unab.cl/xmlui/handle/ria/20312
We report the discovery of 25 new open clusters resulting from a search in dense low galactic latitude fields. We also provide, for the first time, structural and astrophysical parameters for the new findings and 34 other recently discovered open clu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d33b6299d1b344d9c5e7fd3cffa45851