Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Maia, F F S"'
Autor:
Oliveira, R. A. P., Maia, F. F. S., Barbuy, B., Dias, B., Santos Jr., J. F. C., Souza, S. O., Kerber, L. O., Bica, E., Sanmartim, D., Quint, B., Fraga, L., Armond, T., Minniti, D., Parisi, M. C., Santrich, O. J. Katime, Angelo, M. S., Pérez-Villegas, A., De Bórtoli, B. J.
The formation scenario of the Magellanic Bridge during an encounter between the Large and Small Magellanic Clouds $\sim200\,$Myr ago, as proposed by $N$-body models, would be imprinted in the chemical enrichment and kinematics of its stars, and sites
Externí odkaz:
http://arxiv.org/abs/2306.05503
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:
http://arxiv.org/abs/2304.02209
Autor:
Bica, E., Maia, F. F. S., Oliveira, R. A. P., Dias, B., Santos Jr., J. F. C., Rocha, J. P., Kerber, L., Gardin, J. F., Armond, T., Parisi, M. C., Souza, S. O., Barbuy, B.
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:
http://arxiv.org/abs/2209.05532
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:
http://arxiv.org/abs/2112.15247
Autor:
Oliveira, R. A. P., Ortolani, S., Barbuy, B., Kerber, L. O., Maia, F. F. S., Bica, E., Cassisi, S., Souza, S. O., Pérez-Villegas, A.
Publikováno v:
A&A 657, A123 (2022)
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:
http://arxiv.org/abs/2110.13943
Autor:
Barbuy, B., Cantelli, E., Muniz, L., Souza, S. O., Chiappini, C., Hirschi, R., Cescutti, G., Pignatari, M., Ortolani, S., Kerber, L., Maia, F. F. S., Bica, E., Depagne, E.
NGC 6522 is a moderately metal-poor bulge globular cluster ([Fe/H]$\sim$$-$1.0), and it is a well-studied representative among a number of moderately metal-poor blue horizontal branch clusters located in the bulge. The NGC 6522 abundance pattern can
Externí odkaz:
http://arxiv.org/abs/2107.08746
We report the discovery of 34 new open clusters and candidates as a result of a systematic search carried out in 200 adjacent fields of 1x1 square degrees area projected towards the Galactic bulge, using Gaia DR2 data. The objects were identified and
Externí odkaz:
http://arxiv.org/abs/2101.10982
In this work, we investigate the dynamical properties of 38 Galactic open clusters: 34 of them are located at low Galactic latitudes (|b| < 10$^{\circ}$) and are projected against dense stellar fields; the other 4 comparison objects present clearer c
Externí odkaz:
http://arxiv.org/abs/2010.04825
Autor:
Santos Jr., J. F. C., Maia, F. F. S., Dias, B., Kerber, L. de O., Piatti, A. E., Bica, E., Angelo, M. S., Minniti, D., Pérez-Villegas, A., Roman-Lopes, A., Westera, P., Fraga, L., Quint, B., Sanmartim, D.
We provide a homogeneous set of structural parameters of 83 star clusters located at the periphery of the Small Magellanic Cloud (SMC) and the Large Magellanic Cloud (LMC). The clusters' stellar density and surface brightness profiles were built from
Externí odkaz:
http://arxiv.org/abs/2008.04399
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:
http://arxiv.org/abs/2006.05611