Buscar
Mostrando ítems 41-50 de 119
The signature of dark energy perturbations in galaxy cluster surveys
(Iop Publishing Ltd, 2009-07-01)
Models of dynamical dark energy unavoidably possess fluctuations in the energy density and pressure of that new component. In this paper we estimate the impact of dark energy fluctuations on the number of galaxy clusters ...
Numerical self-consistent stellar models of thin disks
(Edp Sciences S ALes Ulis Cedex AFrança, 2005)
Bruck 88: a young star cluster with an old age resemblance in the outskirts of the Small Magellanic Cloud
(Oxford University Press, 2014-10)
We present spectroscopic and photometric results for the Small Magellanic Cloud (SMC) cluster Bruck 88. From the comparison of the cluster integrated spectrum with template cluster spectra, we found that the Milky Way ...
'Fundamental Plane'-like relations from collisionless stellar dynamics: a comparison of mergers and collapses
(Blackwell Publishing LtdOxfordInglaterra, 2003)
Deep Washington photometry of inconspicuous star cluster candidates in the Large Magellanic Cloud
(IOP Publishing, 2015-02)
We present deep Washington photometry of 45 poorly populated star cluster candidates in the Large Magellanic Cloud (LMC). We have performed a systematic study to estimate the parameters of the cluster candidates by matching ...
Fossil groups in the Millennium Simulation Evolution of the brightest galaxies
(EDP SCIENCES S A, 2008)
Aims. We create a catalogue of simulated fossil groups and study their properties, in particular the merging histories of their first-ranked galaxies. We compare the simulated fossil group properties with those of both ...
NGC2587: a sparse open cluster projected on to a populous star field
(Oxford University Press, 2009-07)
We present CCD photometry in the Johnson U, B and V and Kron–Cousins I passbands for the open cluster NGC 2587. The sample consists of 4406 stars reaching down to V∼ 21.0. We developed a new method to clean statistically ...
Mass distribution and structural parameters of Small Magellanic Cloud star clusters
(Wiley Blackwell Publishing, Inc, 2014-01)
In this work, we estimate, for the first time, the total masses and mass function (MF) slopes of a sample of 29 young and intermediate-age Small Magellanic Cloud (SMC) clusters from CCD Washington photometry. We also derive ...
Probing the large Magellanic Cloud's recent chemical enrichment history through its star clusters
(Wiley Blackwell Publishing, Inc, 2015-04)
We present Washington system colour-magnitude diagrams (CMDs) for 17 practically unstudied star clusters located in the bar as well as in the inner disc and outer regions of the Large Magellanic Cloud (LMC). Cluster sizes ...
Structure and substructure analysis of DAFT/FADA galaxy clusters in the [0.4-0.9] redshift range
(EDP SciencesLes Ulis, 2014)
Context. The DAFT/FADA survey is based on the study of ~90 rich (masses found in the literature >2 × 1014 M&sun;) and moderately distant clusters (redshifts 0.4 < z < 0.9), all with HST imaging data available. This survey ...