Zobrazeno 1 - 10
of 267
pro vyhledávání: '"D'Odorico, Valentina"'
Autor:
Grazian, Andrea, Giallongo, Emanuele, Boutsia, Konstantina, Cristiani, Stefano, Fontanot, Fabio, Bischetti, Manuela, Bisigello, Laura, Bongiorno, Angela, Calderone, Giorgio, Tegli, Francesco Chiti, Cupani, Guido, De Lucia, Gabriella, D'Odorico, Valentina, Feruglio, Chiara, Fiore, Fabrizio, Gandolfi, Giovanni, Girardi, Giorgia, Guarneri, Francesco, Hirschmann, Michaela, Porru, Matteo, Rodighiero, Giulia, Saccheo, Ivano, Simioni, Matteo, Trost, Andrea, Viitanen, Akke
In the past, high-z AGNs were given a minor role as possible drivers of reionization, despite initial evidences in favor of their large space densities at low luminosities by Chandra and HST. Recent observations from JWST are finding relatively large
Externí odkaz:
http://arxiv.org/abs/2407.20861
Autor:
Milaković, Dinko, Webb, John K., Molaro, Paolo, Lee, Chung-Chi, Jethwa, Prashin, Cupani, Guido, Murphy, Michael T., Welsh, Louise, D'Odorico, Valentina, Cristiani, Stefano, Santos, Ricardo Génova, Martins, Carlos J. A. P., Nunes, Nelson J., Schmidt, Tobias M., Pepe, Francesco A., Osorio, Maria Rosa Zapatero, Alibert, Yann, Hernández, J. I. González, Di Marcantonio, Paolo, Palle, Enric, Santos, Nuno C., Rebolo, Rafael
Chemical evolution models predict a gradual build-up of $^{13}$C in the universe, based on empirical nuclear reaction rates and assumptions on the properties of stellar populations. However, old metal-poor stars within the Galaxy contain more $^{13}$
Externí odkaz:
http://arxiv.org/abs/2407.17953
Autor:
Tornotti, Davide, Fumagalli, Michele, Fossati, Matteo, Benitez-Llambay, Alejandro, Izquierdo-Villalba, David, Travascio, Andrea, Battaia, Fabrizio Arrigoni, Cantalupo, Sebastiano, Beckett, Alexander, Bonoli, Silvia, Dayal, Pratika, D'Odorico, Valentina, Dutta, Rajeshwari, Lusso, Elisabeta, Peroux, Celine, Rafelski, Marc, Revalski, Mitchell, Spinoso, Daniele, Swinbank, Mark
Filaments connecting halos are a long-standing prediction of cold dark matter theories. We present a novel detection of the cosmic web emission connecting two massive quasar-host galaxies at cosmic noon in the MUSE Ultra Deep Field (MUDF) using unpre
Externí odkaz:
http://arxiv.org/abs/2406.17035
Autor:
Zhu, Yongda, Becker, George D., Bosman, Sarah E. I., Cain, Christopher, Keating, Laura C., Nasir, Fahad, D'Odorico, Valentina, Bañados, Eduardo, Bian, Fuyan, Bischetti, Manuela, Bolton, James S., Chen, Huanqing, D'Aloisio, Anson, Davies, Frederick B., Davies, Rebecca L., Eilers, Anna-Christina, Fan, Xiaohui, Gaikwad, Prakash, Greig, Bradley, Haehnelt, Martin G., Kulkarni, Girish, Lai, Samuel, Puchwein, Ewald, Qin, Yuxiang, Ryan-Weber, Emma V., Satyavolu, Sindhu, Spina, Benedetta, Walter, Fabian, Wang, Feige, Wolfson, Molly, Yang, Jinyi
Recent quasar absorption line observations suggest that reionization may end as late as $z \approx 5.3$. As a means to search for large neutral hydrogen islands at $z<6$, we revisit long dark gaps in the Ly$\beta$ forest in VLT/X-Shooter and Keck/ESI
Externí odkaz:
http://arxiv.org/abs/2405.12275
Autor:
Greig, Bradley, Mesinger, Andrei, Bañados, Eduardo, Becker, George D., Bosman, Sarah E. I., Chen, Huanqing, Davies, Frederick B., D'Odorico, Valentina, Eilers, Anna-Christina, Gallerani, Simona, Haehnelt, Martin G., Keating, Laura, Lai, Samuel, Qin, Yuxiang, Ryan-Weber, Emma, Satyavolu, Sindhu, Wang, Feige, Yang, Jinyi, Zhu, Yongda
The attenuation of Ly$\alpha$ photons by neutral hydrogen in the intergalactic medium (IGM) at $z\gtrsim5$ continues to be a powerful probe for studying the epoch of reionisation. Given a framework to estimate the intrinsic (true) Ly$\alpha$ emission
Externí odkaz:
http://arxiv.org/abs/2404.12585
Autor:
Bischetti, Manuela, Choi, Hyunseop, Fiore, Fabrizio, Feruglio, Chiara, Carniani, Stefano, D'Odorico, Valentina, Bañados, Eduardo, Chen, Huanqing, Decarli, Roberto, Gallerani, Simona, Hlavacek-Larrondo, Julie, Lai, Samuel, Leighly, Karen M., Mazzucchelli, Chiara, Perreault-Levasseur, Laurence, Tripodi, Roberta, Walter, Fabian, Wang, Feige, Yang, Jinyi, Zanchettin, Maria Vittoria, Zhu, Yongda
Although the mass growth of supermassive black holes during the Epoch of Reionisation is expected to play a role in shaping the concurrent growth of their host-galaxies, observational evidence of feedback at z$\gtrsim$6 is still sparse. We perform th
Externí odkaz:
http://arxiv.org/abs/2404.12443
Autor:
Sodini, Alessio, D'Odorico, Valentina, Salvadori, Stefania, Vanni, Irene, Bischetti, Manuela, Cupani, Guido, Davies, Rebecca, Becker, George D., Bañados, Eduardo, Bosman, Sarah, Davies, Frederick, Farina, Emanuele Paolo, Ferrara, Andrea, Keating, Laura, Kulkarni, Girish, Lai, Samuel, Ryan-Weber, Emma, Sebastian, Alma Maria, Walter, Fabian
Publikováno v:
A&A 687, A314 (2024)
This study explores the metal enrichment signatures attributed to the first generation of stars (PopIII) in the Universe, focusing on the E-XQR-30 sample. We aim to identify traces of Pop III metal enrichment by analyzing neutral gas in the interstel
Externí odkaz:
http://arxiv.org/abs/2404.10722
Autor:
Greig, Bradley, Bosman, Sarah E. I., Davies, Frederick B., Ďurovčíková, Dominika, Fathivavsari, Hassan, Liu, Bin, Meyer, Romain A., Sun, Zechang, D'Odorico, Valentina, Gallerani, Simona, Mesinger, Andrei, Ting, Yuan-Sen
Reconstructing the intrinsic Ly$\alpha$ line flux from high-$z$ QSOs can place constraints on the neutral hydrogen content of the intergalactic medium during reionisation. There are now $\gtrsim10$ different Ly$\alpha$ reconstruction pipelines using
Externí odkaz:
http://arxiv.org/abs/2404.01556
Autor:
Revalski, Mitchell, Rafelski, Marc, Henry, Alaina, Fossati, Matteo, Fumagalli, Michele, Dutta, Rajeshwari, Pirzkal, Norbert, Beckett, Alexander, Battaia, Fabrizio Arrigoni, Dayal, Pratika, D'Odorico, Valentina, Lusso, Elisabeta, Nedkova, Kalina V., Prichard, Laura J., Papovich, Casey, Peroux, Celine
Using more than 100 galaxies in the MUSE Ultra Deep Field with spectroscopy from the Hubble Space Telescope's Wide Field Camera 3 and the Very Large Telescope's Multi Unit Spectroscopic Explorer, we extend the gas-phase mass-metallicity relation (MZR
Externí odkaz:
http://arxiv.org/abs/2403.17047
Autor:
Sebastian, Alma Maria, Ryan-Weber, Emma, Davies, Rebecca L., Becker, George D., Keating, Laura C., D'Odorico, Valentina, Meyer, Romain A., Bosman, Sarah E. I., Cupani, Guido, Kulkarni, Girish, Haehnelt, Martin G., Lai, Samuel, Eilers, Anna-Christina, Bischetti, Manuela, Gallerani, Simona
Intervening metal absorbers in quasar spectra at $z > 6$ can be used as probes to study the chemical enrichment of the Universe during the Epoch of Reionization (EoR). This work presents the comoving line densities ($dn/dX$) of low ionisation absorbe
Externí odkaz:
http://arxiv.org/abs/2403.10072