Zobrazeno 1 - 10
of 180
pro vyhledávání: '"Luigi R. Bedin"'
Autor:
Roman Gerasimov, Luigi R. Bedin, Adam J. Burgasser, Daniel Apai, Domenico Nardiello, Efrain Alvarado III, Jay Anderson
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 1, p 65 (2024)
Globular clusters contain vast repositories of metal-poor stars that represent some of the oldest stellar generations in the Universe. The archaeological footprint of early Galactic evolution may be retained in the measurable properties of globular c
Externí odkaz:
https://doaj.org/article/e616d5716d8d4891b59d663fae7c97a0
Autor:
Mattia Libralato, Enrico Vesperini, Andrea Bellini, Antonino P. Milone, Roeland P. van der Marel, Giampaolo Piotto, Jay Anderson, Antonio Aparicio, Beatriz Barbuy, Luigi R. Bedin, Thomas M. Brown, Santi Cassisi, Domenico Nardiello, Ata Sarajedini, Michele Scalco
Publikováno v:
The Astrophysical Journal, Vol 944, Iss 1, p 58 (2023)
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:
https://doaj.org/article/ce6a121dd52b4e0289b4c052780fd2e0
Autor:
Eduardo Vitral, Mattia Libralato, Kyle Kremer, Gary A Mamon, Andrea Bellini, Luigi R Bedin, Jay Anderson
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 522:5740-5757
Recent studies of nearby globular clusters have discovered excess dark mass in their cores, apparently in an extended distribution, and simulations indicate that this mass is composed mostly of white dwarfs (respectively stellar-mass black holes) in
Autor:
Virginio Oldani, Federico Manzini, Paolo Ochner, Andrea Reguitti, Luigi R. Bedin, Raoul Behrend, Jean Gabriel Bosch
Publikováno v:
Icarus. 395:115451
Autor:
Chris Evans, Paul A. Crowther, Simon Clark, Roeland P. van der Marel, Andrea Bellini, Lee Patrick, Sangmo Tony Sohn, Jay Anderson, Mattia Libralato, Francisco Najarro, Selma E. de Mink, Elena Sabbi, Luigi R. Bedin, D. J. Lennon, Imants Platais
Publikováno v:
RUA. Repositorio Institucional de la Universidad de Alicante
Universidad de Alicante (UA)
DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
instname
Monthly Notices of the Royal Astronomical Society, 500(3), 3213-3239. Oxford University Press
Universidad de Alicante (UA)
DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
instname
Monthly Notices of the Royal Astronomical Society, 500(3), 3213-3239. Oxford University Press
The presence of massive stars (MSs) in the region close to the Galactic Center (GC) poses several questions about their origin. The harsh environment of the GC favors specific formation scenarios, each of which should imprint characteristic kinematic
Autor:
C. Fontanive, Luigi R. Bedin
Publikováno v:
Bedin, L. R.; Fontanive, C. (2020). Extending Gaia DR2 with HST narrow-field astrometry. II. Refining the method on WISE J163940.83−684738.6. Monthly notices of the Royal Astronomical Society, 494(2), pp. 2068-2075. Oxford University Press 10.1093/mnras/staa540
In the second paper of this series we perfected our method of linking high precision Hubble Space Telescope astrometry to the high-accuracy Gaia DR2 absolute reference system to overcome the limitations of relative astrometry with narrow-field camera
Autor:
Roman Gerasimov, Adam J. Burgasser, Derek Homeier, Luigi R. Bedin, Jon M. Rees, Michele Scalco, Jay Anderson, Maurizio Salaris
Brown dwarfs can serve as both clocks and chemical tracers of the evolutionary history of the Milky Way due to their continuous cooling and high sensitivity of spectra to composition. We focus on brown dwarfs in globular clusters that host some of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a05e6c8439572b7c2c9fb12272d71305
http://hdl.handle.net/20.500.12386/32988
http://hdl.handle.net/20.500.12386/32988
Autor:
Leslie M. Morales, Eric L. Sandquist, Gail H. Schaefer, Christopher D. Farrington, Robert Klement, Luigi R. Bedin, Mattia Libralato, Luca Malavolta, Domenico Nardiello, Jerome A. Orosz, John D. Monnier, Stefan Kraus, Jean-Baptiste Le Bouquin, Narsireddy Anugu, Theo ten Brummelaar, Claire L. Davies, Jacob Ennis, Tyler Gardner, Cyprien Lanthermann
Publikováno v:
The Astronomical Journal
The Astronomical Journal, 2022, 164, ⟨10.3847/1538-3881/ac7329⟩
The Astronomical Journal, 2022, 164, ⟨10.3847/1538-3881/ac7329⟩
We observe the brightest member of the Praesepe cluster, ϵ Cnc, to precisely measure the characteristics of the stars in this binary system, en route to a new measurement of the cluster’s age. We present spectroscopic radial velocity measurements
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ec0b9fdc06c0f589ef15f7b95ec0455
https://hal-insu.archives-ouvertes.fr/insu-03780756
https://hal-insu.archives-ouvertes.fr/insu-03780756
Autor:
Mattia Libralato, Andrea Bellini, Enrico Vesperini, Giampaolo Piotto, Antonino P. Milone, Roeland P. van der Marel, Jay Anderson, Antonio Aparicio, Beatriz Barbuy, Luigi R. Bedin, Luca Borsato, Santi Cassisi, Emanuele Dalessandro, Francesco R. Ferraro, Ivan R. King, Barbara Lanzoni, Domenico Nardiello, Sergio Ortolani, Ata Sarajedini, Sangmo Tony Sohn
Publikováno v:
The Astrophysical Journal
A number of studies based on data collected by the $\textit{Hubble Space Telescope}$ ($\textit{HST}$) GO-13297 program "HST Legacy Survey of Galactic Globular Clusters: Shedding UV Light on Their Populations and Formation" have investigated the photo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d29dd61ef059199f829b795cd6fea9de
Autor:
Harvey B. Richer, Aaron Dotter, Christian Knigge, R. M. Rich, Luigi R. Bedin, M Geffert, A. Dieball, David R. Zurek
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 486:2254-2264
We present an analysis of the second epoch Hubble Space TelescopeWide Field Camera 3 F110W near-infrared (NIR) imaging data of the globular cluster M 4. The new data set suggests that one of the previously suggested four brown dwarf candidates in thi