Search

Your search keyword '"Damiani, F."' showing total 9 results
Start Over Author "Damiani, F." Journal monthly notices of the royal astronomical society
9 results on '"Damiani, F."'

1. The Gaia-ESO Survey: asymmetric expansion of the Lagoon Nebula cluster NGC 6530 from GES and Gaia DR2

Author

Wright, Nicholas J, primary, Jeffries, R D, additional, Jackson, R J, additional, Bayo, A, additional, Bonito, R, additional, Damiani, F, additional, Kalari, V, additional, Lanzafame, A C, additional, Pancino, E, additional, Parker, R J, additional, Prisinzano, L, additional, Randich, S, additional, Vink, J S, additional, Alfaro, E J, additional, Bergemann, M, additional, Franciosini, E, additional, Gilmore, G, additional, Gonneau, A, additional, Hourihane, A, additional, Jofré, P, additional, Koposov, S E, additional, Lewis, J, additional, Magrini, L, additional, Micela, G, additional, Morbidelli, L, additional, Sacco, G G, additional, Worley, C C, additional, and Zaggia, S, additional

Published
2019
Full Text
View/download PDF

2. The Gaia-ESO Survey: evidence of atomic diffusion in M67?

Author

Bertelli Motta, C, primary, Pasquali, A, additional, Richer, J, additional, Michaud, G, additional, Salaris, M, additional, Bragaglia, A, additional, Magrini, L, additional, Randich, S, additional, Grebel, E K, additional, Adibekyan, V, additional, Blanco-Cuaresma, S, additional, Drazdauskas, A, additional, Fu, X, additional, Martell, S, additional, Tautvaišienė, G, additional, Gilmore, G, additional, Alfaro, E J, additional, Bensby, T, additional, Flaccomio, E, additional, Koposov, S E, additional, Korn, A J, additional, Lanzafame, A C, additional, Smiljanic, R, additional, Bayo, A, additional, Carraro, G, additional, Casey, A R, additional, Costado, M T, additional, Damiani, F, additional, Franciosini, E, additional, Heiter, U, additional, Hourihane, A, additional, Jofré, P, additional, Lardo, C, additional, Lewis, J, additional, Monaco, L, additional, Morbidelli, L, additional, Sacco, G G, additional, Sousa, S G, additional, Worley, C C, additional, and Zaggia, S, additional

Published
2018
Full Text
View/download PDF

3. Gaia -ESO Survey: asymmetric expansion of the Lagoon Nebula cluster NGC 6530 from GES and Gaia DR2.

Author

Wright, Nicholas J, Jeffries, R D, Jackson, R J, Bayo, A, Bonito, R, Damiani, F, Kalari, V, Lanzafame, A C, Pancino, E, Parker, R J, Prisinzano, L, Randich, S, Vink, J S, Alfaro, E J, Bergemann, M, Franciosini, E, Gilmore, G, Gonneau, A, Hourihane, A, and Jofré, P

Subjects
LAGOONS, ASTROMETRY, STELLAR populations, NEBULAE, STELLAR dynamics, OPEN clusters of stars, STAR formation
Abstract

The combination of precise radial velocities from multi-object spectroscopy and highly accurate proper motions from Gaia DR2 opens up the possibility for detailed 3D kinematic studies of young star-forming regions and clusters. Here, we perform such an analysis by combining Gaia -ESO Survey spectroscopy with Gaia astrometry for ∼900 members of the Lagoon Nebula cluster, NGC 6530. We measure the 3D velocity dispersion of the region to be |$5.35^{+0.39}_{-0.34}$|  km s−1, which is large enough to suggest the region is gravitationally unbound. The velocity ellipsoid is anisotropic, implying that the region is not sufficiently dynamically evolved to achieve isotropy, though the central part of NGC 6530 does exhibit velocity isotropy that suggests sufficient mixing has occurred in this denser part. We find strong evidence that the stellar population is expanding, though this is preferentially occurring in the declination direction and there is very little evidence for expansion in the right ascension direction. This argues against a simple radial expansion pattern, as predicted by models of residual gas expulsion. We discuss these findings in the context of cluster formation, evolution, and disruption theories. [ABSTRACT FROM AUTHOR]

Published
2019
Full Text
View/download PDF

4. The Gaia-ESO Survey: lithium depletion in the Gamma Velorum cluster and inflated radii in low-mass pre-main-sequence stars

Author

Jeffries, R. D., primary, Jackson, R. J., additional, Franciosini, E., additional, Randich, S., additional, Barrado, D., additional, Frasca, A., additional, Klutsch, A., additional, Lanzafame, A. C., additional, Prisinzano, L., additional, Sacco, G. G., additional, Gilmore, G., additional, Vallenari, A., additional, Alfaro, E. J., additional, Koposov, S. E., additional, Pancino, E., additional, Bayo, A., additional, Casey, A. R., additional, Costado, M. T., additional, Damiani, F., additional, Hourihane, A., additional, Lewis, J., additional, Jofre, P., additional, Magrini, L., additional, Monaco, L., additional, Morbidelli, L., additional, Worley, C. C., additional, Zaggia, S., additional, and Zwitter, T., additional

Published
2016
Full Text
View/download PDF

5. TheGaia-ESO Survey: revisiting the Li-rich giant problem

Author

Casey, A. R., primary, Ruchti, G., additional, Masseron, T., additional, Randich, S., additional, Gilmore, G., additional, Lind, K., additional, Kennedy, G. M., additional, Koposov, S. E., additional, Hourihane, A., additional, Franciosini, E., additional, Lewis, J. R., additional, Magrini, L., additional, Morbidelli, L., additional, Sacco, G. G., additional, Worley, C. C., additional, Feltzing, S., additional, Jeffries, R. D., additional, Vallenari, A., additional, Bensby, T., additional, Bragaglia, A., additional, Flaccomio, E., additional, Francois, P., additional, Korn, A. J., additional, Lanzafame, A., additional, Pancino, E., additional, Recio-Blanco, A., additional, Smiljanic, R., additional, Carraro, G., additional, Costado, M. T., additional, Damiani, F., additional, Donati, P., additional, Frasca, A., additional, Jofré, P., additional, Lardo, C., additional, de Laverny, P., additional, Monaco, L., additional, Prisinzano, L., additional, Sbordone, L., additional, Sousa, S. G., additional, Tautvaišienė, G., additional, Zaggia, S., additional, Zwitter, T., additional, Delgado Mena, E., additional, Chorniy, Y., additional, Martell, S. L., additional, Silva Aguirre, V., additional, Miglio, A., additional, Chiappini, C., additional, Montalban, J., additional, Morel, T., additional, and Valentini, M., additional

Published
2016
Full Text
View/download PDF

6. The Gaia-ESO Survey: a quiescent Milky Way with no significant dark/stellar accreted disc★

Author

Ruchti, G. R., primary, Read, J. I., additional, Feltzing, S., additional, Serenelli, A. M., additional, McMillan, P., additional, Lind, K., additional, Bensby, T., additional, Bergemann, M., additional, Asplund, M., additional, Vallenari, A., additional, Flaccomio, E., additional, Pancino, E., additional, Korn, A. J., additional, Recio-Blanco, A., additional, Bayo, A., additional, Carraro, G., additional, Costado, M. T., additional, Damiani, F., additional, Heiter, U., additional, Hourihane, A., additional, Jofré, P., additional, Kordopatis, G., additional, Lardo, C., additional, de Laverny, P., additional, Monaco, L., additional, Morbidelli, L., additional, Sbordone, L., additional, Worley, C. C., additional, and Zaggia, S., additional

Published
2015
Full Text
View/download PDF

7. The Gaia-ESO Survey: lithium depletion in the Gamma Velorum cluster and inflated radii in low-mass pre-main-sequence stars.

Author

Jeffries, R. D., Jackson, R. J., Franciosini, E., Randich, S., Barrado, D., Frasca, A., Klutsch, A., Lanzafame, A. C., Prisinzano, L., Sacco, G. G., Gilmore, G., Vallenari, A., Alfaro, E. J., Koposov, S. E., Pancino, E., Bayo, A., Casey, A. R., Costado, M. T., Damiani, F., and Hourihane, A.

Subjects
MULTIPLE stars, LITHIUM, FUEL burnup (Nuclear engineering), RED dwarf stars, SURFACE temperature, HR diagrams
Abstract

We show that non-magnetic models for the evolution of pre-main-sequence (PMS) stars cannot simultaneously describe the colour-magnitude diagram (CMD) and the pattern of lithium depletion seen in the cluster of young, low-mass stars surrounding γ 2 Velorum. The age of 7.5 ± 1 Myr inferred from the CMD is much younger than that implied by the strong Li depletion seen in the cluster M-dwarfs, and the Li depletion occurs at much redder colours than predicted. The epoch at which a star of a given mass depletes its Li and the surface temperature of that star are both dependent on its radius. We demonstrate that if the low-mass stars have radii ~10 per cent larger at a given mass and age, then both the CMD and the Li-depletion pattern of the Gamma Velorum cluster are explained at a common age of ≃18-21 Myr. This radius inflation could be produced by some combination of magnetic suppression of convection and extensive cool starspots. Models that incorporate radius inflation suggest that PMS stars, similar to those in the Gamma Velorum cluster, in the range 0.2 < M/M⊙ < 0.7, are at least a factor of 2 older and ~7 per cent cooler than previously thought and that their masses are much larger (by >30 per cent) than inferred from conventional, non-magnetic models in the Hertzsprung-Russell diagram. Systematic changes of this size may be of great importance in understanding the evolution of young stars, disc lifetimes and the formation of planetary systems. [ABSTRACT FROM AUTHOR]

Published
2017
Full Text
View/download PDF

8. The Gaia-ESO Survey: the most metal-poor stars in the Galactic bulge

Author

Howes, L. M., primary, Asplund, M., additional, Casey, A. R., additional, Keller, S. C., additional, Yong, D., additional, Gilmore, G., additional, Lind, K., additional, Worley, C., additional, Bessell, M. S., additional, Casagrande, L., additional, Marino, A. F., additional, Nataf, D. M., additional, Owen, C. I., additional, Da Costa, G. S., additional, Schmidt, B. P., additional, Tisserand, P., additional, Randich, S., additional, Feltzing, S., additional, Vallenari, A., additional, Allende Prieto, C., additional, Bensby, T., additional, Flaccomio, E., additional, Korn, A. J., additional, Pancino, E., additional, Recio-Blanco, A., additional, Smiljanic, R., additional, Bergemann, M., additional, Costado, M. T., additional, Damiani, F., additional, Heiter, U., additional, Hill, V., additional, Hourihane, A., additional, Jofré, P., additional, Lardo, C., additional, de Laverny, P., additional, Magrini, L., additional, Maiorca, E., additional, Masseron, T., additional, Morbidelli, L., additional, Sacco, G. G., additional, Minniti, D., additional, and Zoccali, M., additional

Published
2014
Full Text
View/download PDF

9. The close classical T Tauri binary V4046 Sgr: complex magnetic fields and distributed mass accretion

Author

Donati, J.-F., primary, Gregory, S. G., additional, Montmerle, T., additional, Maggio, A., additional, Argiroffi, C., additional, Sacco, G., additional, Hussain, G., additional, Kastner, J., additional, Alencar, S. H. P., additional, Audard, M., additional, Bouvier, J., additional, Damiani, F., additional, Güdel, M., additional, Huenemoerder, D., additional, and Wade, G. A., additional

Published
2011
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results