Zobrazeno 1 - 10
of 125
pro vyhledávání: '"Valentina D'Odorico"'
Publikováno v:
The Astrophysical Journal Letters, Vol 967, Iss 2, p L22 (2024)
Unveiling the chemical fingerprints of the first (Population III, hereafter Pop III) stars is crucial for indirectly studying their properties and probing their massive nature. In particular, very massive Pop III stars explode as energetic pair-insta
Externí odkaz:
https://doaj.org/article/5354468e24f845c28683a887de7352e5
Autor:
Andrea Grazian, Emanuele Giallongo, Konstantina Boutsia, Stefano Cristiani, Fabio Fontanot, Manuela Bischetti, Laura Bisigello, Angela Bongiorno, Giorgio Calderone, Francesco Chiti Tegli, Guido Cupani, Gabriella De Lucia, Valentina D’Odorico, Chiara Feruglio, Fabrizio Fiore, Giovanni Gandolfi, Giorgia Girardi, Francesco Guarneri, Michaela Hirschmann, Matteo Porru, Giulia Rodighiero, Ivano Saccheo, Matteo Simioni, Andrea Trost, Akke Viitanen
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 1, p 84 (2024)
In the past, high- z active galactic nuclei (AGNs) were given a minor role as possible drivers of reionization, despite initial evidence in favor of their large space densities at low luminosities by Chandra and the Hubble Space Telescope. Recent obs
Externí odkaz:
https://doaj.org/article/bb545d929e7c424caee51d02d291bd04
Autor:
Manuela Bischetti, Hyunseop Choi, Fabrizio Fiore, Chiara Feruglio, Stefano Carniani, Valentina D’Odorico, Eduardo Bañados, Huanqing Chen, Roberto Decarli, Simona Gallerani, Julie Hlavacek-Larrondo, Samuel Lai, Karen M. Leighly, Chiara Mazzucchelli, Laurence Perreault-Levasseur, Roberta Tripodi, Fabian Walter, Feige Wang, Jinyi Yang, Maria Vittoria Zanchettin, Yongda Zhu
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 1, p 9 (2024)
Although the mass growth of supermassive black holes during the epoch of reionization is expected to play a role in shaping the concurrent growth of their host galaxies, observational evidence of feedback at z ≳ 6 is still sparse. We perform the fi
Externí odkaz:
https://doaj.org/article/ba09e8dbe250469a871eb6016ab3502f
Autor:
Mitchell Revalski, Marc Rafelski, Alaina Henry, Matteo Fossati, Michele Fumagalli, Rajeshwari Dutta, Norbert Pirzkal, Alexander Beckett, Fabrizio Arrigoni Battaia, Pratika Dayal, Valentina D’Odorico, Elisabeta Lusso, Kalina V. Nedkova, Laura J. Prichard, Casey Papovich, Celine Peroux
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 2, p 228 (2024)
Using more than 100 galaxies in the MUSE Ultra Deep Field with spectroscopy from the Hubble Space Telescope’s (HST) Wide Field Camera 3 and the Very Large Telescope’s Multi Unit Spectroscopic Explorer, we extend the gas-phase mass–metallicity r
Externí odkaz:
https://doaj.org/article/77b4a57ede964f4fb41306f3cfbec87a
Autor:
Frederick B. Davies, Sarah E. I. Bosman, Prakash Gaikwad, Fahad Nasir, Joseph F. Hennawi, George D. Becker, Martin G. Haehnelt, Valentina D’Odorico, Manuela Bischetti, Anna-Christina Eilers, Laura C. Keating, Girish Kulkarni, Samuel Lai, Chiara Mazzucchelli, Yuxiang Qin, Sindhu Satyavolu, Feige Wang, Jinyi Yang, Yongda Zhu
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 2, p 134 (2024)
The variations in Ly α forest opacity observed at z > 5.3 between lines of sight to different background quasars are too strong to be caused by fluctuations in the density field alone. The leading hypothesis for the cause of this excess variance is
Externí odkaz:
https://doaj.org/article/2b86c9a6a1ff452ab720479c96d8d968
Autor:
Chiara Feruglio, Umberto Maio, Roberta Tripodi, Jan Martin Winters, Luca Zappacosta, Manuela Bischetti, Francesca Civano, Stefano Carniani, Valentina D’Odorico, Fabrizio Fiore, Simona Gallerani, Michele Ginolfi, Roberto Maiolino, Enrico Piconcelli, Rosa Valiante, Maria Vittoria Zanchettin
Publikováno v:
The Astrophysical Journal Letters, Vol 954, Iss 1, p L10 (2023)
We report the detection of CO(6–5) and CO(7–6) and their underlying continua from the host galaxy of quasar J100758.264+211529.207 (Pōniuā‘ena) at z = 7.5149, obtained with the NOrthern Extended Millimeter Array. Pōniuā‘ena belongs to the
Externí odkaz:
https://doaj.org/article/871a280c9b3f40f69bf6200060194ee0
Autor:
Roberta Tripodi, Chiara Feruglio, Francisca Kemper, Francesca Civano, Tiago Costa, Martin Elvis, Manuela Bischetti, Stefano Carniani, Fabio Di Mascia, Valentina D’Odorico, Fabrizio Fiore, Simona Gallerani, Michele Ginolfi, Roberto Maiolino, Enrico Piconcelli, Rosa Valiante, Luca Zappacosta
Publikováno v:
The Astrophysical Journal Letters, Vol 946, Iss 2, p L45 (2023)
We present ALMA Band 9 continuum observation of the ultraluminous quasi-stellar object (QSO) SDSS J0100+2802 providing a ∼10 σ detection at ∼670 GHz. SDSS J0100+2802 is the brightest QSO with the most massive supermassive black hole (SMBH) known
Externí odkaz:
https://doaj.org/article/8ca9edeff90141ee930962e8da6ff6df
Autor:
Yongda Zhu, George D. Becker, Holly M. Christenson, Anson D’Aloisio, Sarah E. I. Bosman, Tom Bakx, Valentina D’Odorico, Manuela Bischetti, Christopher Cain, Frederick B. Davies, Rebecca L. Davies, Anna-Christina Eilers, Xiaohui Fan, Prakash Gaikwad, Martin G. Haehnelt, Laura C. Keating, Girish Kulkarni, Samuel Lai, Hai-Xia Ma, Andrei Mesinger, Yuxiang Qin, Sindhu Satyavolu, Tsutomu T. Takeuchi, Hideki Umehata, Jinyi Yang
Publikováno v:
The Astrophysical Journal, Vol 955, Iss 2, p 115 (2023)
The mean free path of ionizing photons, λ _mfp , is a critical parameter for modeling the intergalactic medium (IGM) both during and after reionization. We present direct measurements of λ _mfp from QSO spectra over the redshift range 5 < z < 6, in
Externí odkaz:
https://doaj.org/article/598d97dba9064e05a6e4de4028082ba7
Autor:
Andrea Grazian, Konstantina Boutsia, Emanuele Giallongo, Stefano Cristiani, Fabio Fontanot, Manuela Bischetti, Angela Bongiorno, Giorgio Calderone, Guido Cupani, Valentina D’Odorico, Chiara Feruglio, Fabrizio Fiore, Francesco Guarneri, Matteo Porru, Ivano Saccheo
Publikováno v:
The Astrophysical Journal, Vol 955, Iss 1, p 60 (2023)
One of the key open questions in cosmology is the nature of sources that completed cosmological hydrogen reionization at z ∼ 5.2. High- z primeval galaxies have been long considered the main drivers of reionization, with a minor role played by high
Externí odkaz:
https://doaj.org/article/1966d7d601894f16b20a892286ba55ea
Autor:
Manuela Bischetti, Fabrizio Fiore, Chiara Feruglio, Valentina D’Odorico, Nahum Arav, Tiago Costa, Kastytis Zubovas, George Becker, Sarah E. I. Bosman, Guido Cupani, Rebecca Davies, Anna-Christina Eilers, Emanuele Paolo Farina, Andrea Ferrara, Massimo Gaspari, Chiara Mazzucchelli, Masafusa Onoue, Enrico Piconcelli, Maria Vittoria Zanchettin, Yongda Zhu
Publikováno v:
The Astrophysical Journal, Vol 952, Iss 1, p 44 (2023)
Luminous quasars are powerful targets to investigate the role of feedback from supermassive black holes (BHs) in regulating the growth phases of BHs themselves and of their host galaxies, up to the highest redshifts. Here we investigate the cosmic ev
Externí odkaz:
https://doaj.org/article/0d074c5a07794005bf4f31a30be39173