Zobrazeno 1 - 10
of 90
pro vyhledávání: '"Scalco, M"'
Autor:
Libralato, M., Gerasimov, R., Bedin, L., Anderson, J., Apai, D., Bellini, A., Burgasser, A. J., Griggio, M., Nardiello, D., Salaris, M., Scalco, M., Vesperini, E.
We present observations of the two closest globular clusters, NGC 6121 and NGC 6397, taken with the NIRISS detector of JWST. The combination of our new JWST data with archival Hubble Space Telescope (HST) images allows us to compute proper motions, d
Externí odkaz:
http://arxiv.org/abs/2409.06774
Autor:
Scalco, M., Salaris, M., Bedin, L., Griggio, M., Bellini, A., Libralato, M., Nardiello, D., Vesperini, E., Anderson, J., Bergeron, P., Burgasser, A., Apai, D.
We present a study of the white dwarf (WD) cooling sequence (CS) in the globular cluster (GC) Omega Centauri, the primary goal of a dedicated Hubble Space Telescope (HST) programme. Our analysis has revealed that the peak at the termination of the WD
Externí odkaz:
http://arxiv.org/abs/2409.04533
Autor:
Scalco, M., Libralato, M., Gerasimov, R., Bedin, L. R., Vesperini, E., Nardiello, D., Bellini, A., Griggio, M., Apai, D., Salaris, M., Burgasser, A., Anderson, J.
Thanks to its exceptional near-infrared photometry, JWST can effectively contribute to the discovery, characterization, and understanding of multiple stellar populations in globular clusters, especially at low masses where the Hubble Space Telescope
Externí odkaz:
http://arxiv.org/abs/2405.01635
Autor:
Bedin, L. R., Nardiello, D., Salaris, M., Libralato, M., Bergeron, P., Burgasser, A. J., Apai, D., Griggio, M., Scalco, M., Anderson, J., Gerasimov, R., Bellini, A.
We present James Webb Space Telescope observations of the globular cluster NGC 6397 and use them to extend to infrared wavelengths the characterization of the cluster's entire white dwarf (WD) cooling sequence (CS). The data allows us to probe fundam
Externí odkaz:
http://arxiv.org/abs/2405.01631
Autor:
Scalco, M., Gerasimov, R., Bedin, L. R., Vesperini, E., Nardiello, D., Salaris, M., Burgasser, A., Anderson, J., Libralato, M., Bellini, A., Rosati, P.
We exploit the astro-photometric dataset of the multi-epoch infrared parallel field of a $\textit{Hubble Space Telescope}$ Large Programme aimed at studying the faintest stars of the globular cluster NGC$\,$6752 to determine the luminosity and mass f
Externí odkaz:
http://arxiv.org/abs/2403.03262
In the third paper of this series aimed at developing the tools for analysing resolved stellar populations using the cameras on board of the James Webb Space Telescope (JWST), we present a detailed multi-band study of the 2 Gyr Galactic open cluster
Externí odkaz:
http://arxiv.org/abs/2308.10575
Several observational studies have shown that many Galactic globular clusters (GCs) are characterised by internal rotation. Theoretical studies of the dynamical evolution of rotating clusters have predicted that, during their long-term evolution, the
Externí odkaz:
http://arxiv.org/abs/2303.15253
Autor:
Libralato, M., Vesperini, E., Bellini, A., Milone, A. P., van der Marel, R. P., Piotto, G., Anderson, J., Aparicio, A., Barbuy, B., Bedin, L. R., Brown, T. M., Cassisi, S., Nardiello, D., Sarajedini, A., Scalco, M.
Our understanding of the kinematic properties of multiple stellar populations (mPOPs) in Galactic globular clusters (GCs) is still limited compared to what we know about their chemical and photometric characteristics. Such limitation arises from the
Externí odkaz:
http://arxiv.org/abs/2301.04148
Autor:
Bedin, L. R., Salaris, M., Anderson, J., Scalco, M., Nardiello, D., Vesperini, E., Richer, H., Burgasser, A., Griggio, M., Gerasimov, R., Apai, D., Bellini, A., Libralato, M., Bergeron, P., Rich, R. M., Grazian, A.
We present our final study of the white dwarf cooling sequence (WD CS) in the globular cluster NGC 6752. The investigation is the main goal of a dedicated Hubble Space Telescope large Program, for which all the observations are now collected. The WD
Externí odkaz:
http://arxiv.org/abs/2211.02391
Autor:
Nardiello, D., Bedin, L. R., Burgasser, A., Salaris, M., Cassisi, S., Griggio, M., Scalco, M.
As the James Webb Space Telescope (JWST) has become fully operational, early-release data are now available to begin building the tools and calibrations for precision point-source photometry and astrometry in crowded cluster environments. Here, we pr
Externí odkaz:
http://arxiv.org/abs/2209.06547