Zobrazeno 1 - 10
of 189
pro vyhledávání: '"(Grillo), Claudio"'
Autor:
Morishita, Takahiro, Liu, Zhaoran, Stiavelli, Massimo, Treu, Tommaso, Trenti, Michele, Chartab, Nima, Roberts-Borsani, Guido, Vulcani, Benedetta, Bergamini, Pietro, Castellano, Marco, Grillo, Claudio
We report the identification of two galaxy overdensities at $z\sim5.7$ in the sightline of the galaxy cluster Abell 2744. These overdensities consist of 25 and 17 member galaxies, spectroscopically confirmed with JWST NIRSpec/MSA and NIRCam/WFSS. Eac
Externí odkaz:
http://arxiv.org/abs/2408.10980
Autor:
Schuldt, Stefan, Canameras, Raoul, Andika, Irham T., Bag, Satadru, Melo, Alejandra, Shu, Yiping, Suyu, Sherry H., Taubenberger, Stefan, Grillo, Claudio
We have performed a systematic search for galaxy-scale strong lenses using Hyper Suprime-Cam imaging data, focusing on lenses in overdense environments. To identify these lens candidates, we exploit our neural network from HOLISMOKES VI, which is tra
Externí odkaz:
http://arxiv.org/abs/2405.20383
We report JWST/NIRSpec observations of a star-forming galaxy at $z=2.76$, MACSJ1149-WR1. We securely detect two temperature-sensitive auroral lines, [SIII]6312 (7.4$\sigma$) and [OII]7320+7331 doublets (10$\sigma$), and tentatively [NII]5755 ($2.3\si
Externí odkaz:
http://arxiv.org/abs/2404.10037
Autor:
Castellano, Marco, Napolitano, Lorenzo, Fontana, Adriano, Roberts-Borsani, Guido, Treu, Tommaso, Vanzella, Eros, Zavala, Jorge A., Haro, Pablo Arrabal, Calabrò, Antonello, Llerena, Mario, Mascia, Sara, Merlin, Emiliano, Paris, Diego, Pentericci, Laura, Santini, Paola, Bakx, Tom J. L. C., Bergamini, Pietro, Cupani, Guido, Dickinson, Mark, Filippenko, Alexei V., Glazebrook, Karl, Grillo, Claudio, Kelly, Patrick L., Malkan, Matthew A., Mason, Charlotte A., Morishita, Takahiro, Nanayakkara, Themiya, Rosati, Piero, Sani, Eleonora, Wang, Xin, Yoon, Ilsang
We spectroscopically confirm the $M_{\rm UV} = -20.5$ mag galaxy GHZ2/GLASS-z12 to be at redshift $z=12.34$. The source was selected via NIRCam photometry in GLASS-JWST ERS data, providing the first evidence of a surprising abundance of bright galaxi
Externí odkaz:
http://arxiv.org/abs/2403.10238
Autor:
Natarajan, Priyamvada, Williams, Liliya L., Bradac, Marusa, Grillo, Claudio, Ghosh, Agniva, Sharon, Keren, Wagner, Jenny
Galaxy clusters as gravitational lenses play a unique role in astrophysics and cosmology: they permit mapping the dark matter distribution on a range of scales; they reveal the properties of high and intermediate redshift background galaxies that wou
Externí odkaz:
http://arxiv.org/abs/2403.06245
Autor:
Morishita, Takahiro, Stiavelli, Massimo, Grillo, Claudio, Rosati, Piero, Schuldt, Stefan, Trenti, Michele, Bergamini, Pietro, Boyett, Kristan N., Chary, Ranga-Ram, Leethochawalit, Nicha, Roberts-Borsani, Guido, Treu, Tommaso, Vanzella, Eros
We present deep JWST NIRSpec observations in the sightline of MACS J1149.5+2223, a massive cluster of galaxies at $z=0.54$. We report the spectroscopic redshift of 28 sources at $3
Externí odkaz:
http://arxiv.org/abs/2402.14084
Autor:
Abriola, Davide, Della Pergola, Daniele, Lombardi, Marco, Bergamini, Pietro, Nonino, Mario, Grillo, Claudio, Rosati, Piero
We present a new weak lensing analysis of the Hubble Frontier Fields galaxy cluster Abell 2744 ($z$ = 0.308) using new Magellan/MegaCam multi-band $gri$ imaging data. We carry out our study by applying brand-new PSF and shape measurement softwares th
Externí odkaz:
http://arxiv.org/abs/2402.08364
Autor:
D'Addona, Maurizio, Mercurio, Amata, Rosati, Piero, Grillo, Claudio, Caminha, Gabriel, Acebron, Ana, Angora, Giuseppe, Bergamini, Pietro, Bozza, Valerio, Granata, Giovanni, Annunziatella, Marianna, Gargiulo, Adriana, Gobat, Raphael, Tozzi, Paolo, Girardi, Marisa, Lombardi, Marco, Meneghetti, Massimo, Schipani, Pietro, Tortorelli, Luca, Vanzella, Eros
Publikováno v:
A&A Volume 686, June 2024, A4
We present a new high-precision strong lensing model of PLCK G287.0$+$32.9, a massive lens galaxy cluster at $z=0.383$, with the aim to get an accurate estimation of its effective Einstein radius and total mass distribution. We also present a spectro
Externí odkaz:
http://arxiv.org/abs/2401.16473
Autor:
Dutta, Rajeshwari, Acebron, Ana, Fumagalli, Michele, Grillo, Claudio, Caminha, Gabriel B., Fossati, Matteo
We present a tomographic analysis of metal absorption lines arising from the circumgalactic medium (CGM) of galaxies at z~0.5-2, using Multi Unit Spectroscopic Explorer (MUSE) observations of two background quasars at z~2.2 and 2.8, which are two of
Externí odkaz:
http://arxiv.org/abs/2401.03024
Autor:
Granata, Giovanni, Bergamini, Pietro, Grillo, Claudio, Meneghetti, Massimo, Mercurio, Amata, Meštrić, Uros, Ragagnin, Antonio, Rosati, Piero, Caminha, Gabriel Bartosch, Tortorelli, Luca, Vanzella, Eros
We aim at a direct measurement of the compactness of three galaxy-scale lenses in massive clusters, testing the accuracy of the scaling laws that describe the members in strong lensing (SL) models of galaxy clusters. We selected the multiply imaged s
Externí odkaz:
http://arxiv.org/abs/2310.02310