Zobrazeno 1 - 10
of 143
pro vyhledávání: '"Lattanzi, Mario G."'
The search for accreted satellites in the Galactic disk is a challenging task, to which Gaia plays a crucial role in synergy with ground-based spectroscopic surveys. In 2021, Re Fiorentin et al. discovered five substructures with disk kinematics incl
Externí odkaz:
http://arxiv.org/abs/2410.12581
Autor:
Carnerero, Maria I., Raiteri, Claudia M., Rimoldini, Lorenzo, Busonero, Deborah, Licata, Enrico, Mowlavi, Nami, Lecoeur-Taïbi, Isabelle, Audard, Marc, Holl, Berry, Gavras, Panagiotis, Nienartowicz, Krzysztof, de Fombelle, Grégory Jevardat, Carballo, Ruth, Clementini, Gisella, Delchambre, Ludovic, Klioner, Sergei, Lattanzi, Mario G., Eyer, Laurent
Publikováno v:
A&A 674, A24 (2023)
One of the novelties of the Gaia-DR3 with respect to the previous data releases is the publication of the multiband light curves of about 1 million AGN. The goal of this work was the creation of a catalogue of variable AGN, whose selection was based
Externí odkaz:
http://arxiv.org/abs/2207.06849
Autor:
Crosta, Mariateresa, Lattanzi, Mario G., Poncin-Lafitte, Christophe Le, Gai, Mario, Zhaoxiang, Qi, Vecchiato, Alberto
The direct detection of gravitational waves by ground-based optical interferometers has opened a new window in astronomy. Nevertheless, as these detectors are a combination of two Michelson-Morley like baselines, their sensitivity for determining the
Externí odkaz:
http://arxiv.org/abs/2203.12760
Autor:
Gai, Mario, Qi, Zhaoxiang, Lattanzi, Mario G., Bucciarelli, Beatrice, Busonero, Deborah, Crosta, Mariateresa, Landini, Federico, Liao, Shilong, Luo, Hao, Mana, Giovanni, Méndez, Rene A., Pisani, Marco, Riva, Alberto, Luque, Claudia San Martin, Sasso, Carlo P., Tang, Zhenghong, Vecchiato, Alberto, Yong, Yu
Publikováno v:
Proc. SPIE 11451, 114514I (2020)
Astrometric Science and Technology Roadmap for Astrophysics (ASTRA) is a bilateral cooperation between China and Italy with the goal of consolidating astrometric measurement concepts and technologies. In particular, the objectives include critical an
Externí odkaz:
http://arxiv.org/abs/2104.03146
Autor:
Riva, Alberto, Gai, Mario, Vecchiato, Alberto, Busonero, Deborah, Lattanzi, Mario G., Landini, Federico, Qi, Zhaoxiang, Tang, Zhenghong
Publikováno v:
Proc. SPIE 11443, 114430P (13 December 2020)
High precision astrometry aims at source position determination to a very small fraction of the diffraction image size, in high SNR regime. One of the key limitations to such goal is the optical response variation of the telescope over a sizeable FOV
Externí odkaz:
http://arxiv.org/abs/2104.03003
We explore the local volume of the Milky Way via chemical and kinematical measurements from high quality astrometric and spectroscopic data recently released by the Gaia, APOGEE and GALAH programs. We chemically select $1137$ stars up to $2.5$~kpc of
Externí odkaz:
http://arxiv.org/abs/2012.10957
Akademický článek
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We matched the astrometry of central stars (CSs) of spectroscopically-confirmed Galactic planetary nebulae (PNe) with DR2 Gaia parallaxes ($p$), finding 430 targets in common with $p>0$ and $|\sigma_{\rm p}/p|<1$. A catalog of PNe whose CSs have DR2
Externí odkaz:
http://arxiv.org/abs/1910.09680
We employ differential astrometric methods to establish a small field reference frame stable at the micro-arcsecond ($\mu$as) level on short timescales using high-cadence simulated observations taken by Gaia in February 2017 of a bright star close to
Externí odkaz:
http://arxiv.org/abs/1901.08903
This study is based on high quality astrometric and spectroscopic data from the most recent releases by Gaia and APOGEE. We select $58\,882$ thin and thick disk red giants, in the Galactocentric (cylindrical) distance range $5 < R < 13$~kpc and withi
Externí odkaz:
http://arxiv.org/abs/1810.07643