Zobrazeno 1 - 10
of 366
pro vyhledávání: '"Raso, S"'
Autor:
Dalessandro, E., Raso, S., Kamann, S., Bellazzini, M., Vesperini, E., Bellini, A., Beccari, G.
We present a detailed 3D kinematic analysis of the central regions ($R<30''$) of the low-mass and dynamically evolved galactic globular cluster NGC 6362. The study is based on data obtained with ESO-VLT/MUSE used in combination with the adaptive opti
Externí odkaz:
http://arxiv.org/abs/2105.02246
Autor:
Raso, S., Libralato, M., Bellini, A., Ferraro, F. R., Lanzoni, B., Cadelano, M., Pallanca, C., Dalessandro, E., Piotto, G., Anderson, J., Sohn, S. T.
We constructed a Hubble Space Telescope (HST) astro-photometric catalog of the central region of the Galactic globular cluster NGC 1261. This catalog, complemented with Gaia DR2 data sampling the external regions, has been used to estimate the struct
Externí odkaz:
http://arxiv.org/abs/2004.09540
Autor:
Lanzoni, B., Ferraro, F. R., Dalessandro, E., Cadelano, M., Pallanca, C., Raso, S., Mucciarelli, A., Beccari, G., Focardi, P.
We used resolved star counts from Hubble Space Telescope images to determine the center of gravity and the projected density profiles of 6 old globular clusters in the Large Magellanic Cloud (LMC), namely NGC 1466, NGC 1841, NGC 1898, NGC 2210, NGC 2
Externí odkaz:
http://arxiv.org/abs/1911.01928
Autor:
Ferraro, F. R., Lanzoni, B., Dalessandro, E., Cadelano, M., Raso, S., Mucciarelli, A., Beccari, G., Pallanca, C.
The distribution of size as a function of age observed for star clusters in the Large Magellanic Cloud (LMC) is very puzzling: young clusters are all compact, while the oldest systems show both small and large sizes. It is commonly interpreted as due
Externí odkaz:
http://arxiv.org/abs/1909.02049
Autor:
Raso, S., Pallanca, C., Ferraro, F. R., Lanzoni, B., Mucciarelli, A., Origlia, L., Dalessandro, E., Bellini, A., Libralato, M., Anderson, J.
We have constructed the Spectral Energy Distributions (SEDs) of a sample of Blue Straggler Stars (BSSs) in the core of the globular cluster 47 Tucanae, taking advantage of the large set of high resolution images, ranging from the ultraviolet to the n
Externí odkaz:
http://arxiv.org/abs/1906.01002
Publikováno v:
Research Notes of the American Astronomical Society, Volume 3, Issue 2, article id. 38 (2019)
Li et al. (2018a; Li18a) claimed that the young stellar cluster NGC2173 in the Large Magellanic Cloud (LMC) harbours a bifurcated sequence of blue straggler stars (BSSs), similar to those detected in a few dynamically old globular clusters. However,
Externí odkaz:
http://arxiv.org/abs/1903.01525
Publikováno v:
A&A 621, A45 (2019)
Here we discuss the case of the double Blue Straggler Star (BSS) sequence recently detected in the young stellar cluster NGC 2173 in the Large Magellanic Cloud by Li et al (2018). In order to investigate this feature we made use of two HST sets of ob
Externí odkaz:
http://arxiv.org/abs/1811.01016
Autor:
Ferraro, F. R., Lanzoni, B., Raso, S., Nardiello, D., Dalessandro, E., Vesperini, E., Piotto, G., Pallanca, C., Beccari, G., Bellini, A., Libralato, M., Anderson, J., Aparicio, A., Bedin, L. R., Cassisi, S., Milone, A. P., Ortolani, S., Renzini, A., Salaris, M., van der Marel, R. P.
The parameter A+, defined as the area enclosed between the cumulative radial distribution of blue straggler stars (BSSs) and that of a reference population, is a powerful indicator of the level of BSS central segregation. As part of the Hubble Space
Externí odkaz:
http://arxiv.org/abs/1805.00968
Autor:
Dalessandro, E., Cadelano, M., Vesperini, E., Salaris, M., Ferraro, F. R., Lanzoni, B., Raso, S., Hong, J., Webb, J. J., Zocchi, A.
We present a detailed analysis of the radial distribution of light-element multiple populations (LE-MPs) in the massive and dense globular cluster M80 based on the combination of UV and optical Hubble Space Telescope data. Surprisingly, we find that
Externí odkaz:
http://arxiv.org/abs/1804.03222
Autor:
Raso, S., Ferraro, F. R., Dalessandro, E., Lanzoni, B., Nardiello, D., Bellini, A., Vesperini, E.
We used data from the HST UV Legacy Survey of Galactic Globular Clusters to select the Blue Straggler Star (BSS) population in four intermediate/high density systems (namely NGC 2808, NGC 6388, NGC 6541 and NGC 7078) through a "UV-guided search". Thi
Externí odkaz:
http://arxiv.org/abs/1704.01453