Search Results - "Graziani, Luca"

The low-end of the black hole mass function at cosmic dawn by Trinca, Alessandro, Schneider, Raffaella, Valiante, Rosa, Graziani, Luca, Zappacosta, Luca, Shankar, Francesco

“…ABSTRACT Understanding the formation and growth of supermassive black holes (SMBHs) at high redshift represents a major challenge for theoretical models. In…”
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Radiative transfer of ionizing radiation through gas and dust: the stellar source case by Glatzle, Martin, Ciardi, Benedetta, Graziani, Luca

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Chasing the observational signatures of seed black holes at z > 7: candidate statistics by Valiante, Rosa, Schneider, Raffaella, Graziani, Luca, Zappacosta, Luca

“…Abstract Supermassive black holes (SMBHs) of 109–1010 M⊙ were already in place ∼13 Gyr ago, at z > 6. Super-Eddington growth of low-mass BH seeds (∼100 M⊙) or…”
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X-ray ionization of the intergalactic medium by quasars by Graziani, Luca, Ciardi, B, Glatzle, M

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The dust mass in z > 6 normal star-forming galaxies by Mancini, Mattia, Schneider, Raffaella, Graziani, Luca, Valiante, Rosa, Dayal, Pratika, Maio, Umberto, Ciardi, Benedetta, Hunt, Leslie K.

“…We interpret recent ALMA observations of z > 6 normal star-forming galaxies by means of a seminumerical method, which couples the output of a cosmological…”
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Hunting for Dwarf Galaxies Hosting the Formation and Coalescence of Compact Binaries by Graziani, Luca

“…Here we introduce the latest version of the GAMESH model, capable to consistently account for the formation and evolution of compact binary systems along the…”
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Chasing the observational signatures of seed black holes at z > 7: candidate observability by Valiante, Rosa, Schneider, Raffaella, Zappacosta, Luca, Graziani, Luca, Pezzulli, Edwige, Volonteri, Marta

“…Abstract Observing the light emitted by the first accreting black holes (BHs) would dramatically improve our understanding of the formation of quasars at…”
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On the Stellar Populations of Galaxies at z = 9–11: The Growth of Metals and Stellar Mass at Early Times by Tacchella, Sandro, Finkelstein, Steven L., Bagley, Micaela, Dickinson, Mark, Ferguson, Henry C., Giavalisco, Mauro, Graziani, Luca, Grogin, Norman A., Hathi, Nimish, Hutchison, Taylor A., Jung, Intae, Koekemoer, Anton M., Larson, Rebecca L., Papovich, Casey, Pirzkal, Norbert, Rojas-Ruiz, Sofía, Song, Mimi, Schneider, Raffaella, Somerville, Rachel S., Wilkins, Stephen M., Yung, L. Y. Aaron

“…We present a detailed stellar population analysis of 11 bright (H < 26.6) galaxies at z=9−11 (three spectroscopically confirmed) to constrain the chemical…”
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The epoch of cosmic heating by early sources of X-rays by Eide, Marius B, Graziani, Luca, Ciardi, Benedetta, Feng, Yu, Kakiichi, Koki, Di Matteo, Tiziana

“…Abstract Observations of the 21 cm line from neutral hydrogen indicate that an epoch of heating (EoH) might have preceded the later epoch of reionization. Here…”
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Large-scale simulations of H and He reionization and heating driven by stars and more energetic sources by Eide, Marius B, Ciardi, Benedetta, Graziani, Luca, Busch, Philipp, Feng, Yu, Di Matteo, Tiziana

“…ABSTRACT We present simulations of cosmic reionization and reheating from z = 18 to z = 5, investigating the role of stars (emitting soft UV-photons), nuclear…”
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Black hole scaling relations of active and quiescent galaxies: Addressing selection effects and constraining virial factors by Shankar, Francesco, Bernardi, Mariangela, Richardson, Kayleigh, Marsden, Christopher, Sheth, Ravi K, Allevato, Viola, Graziani, Luca, Mezcua, Mar, Ricci, Federica, Penny, Samantha J, La Franca, Fabio, Pacucci, Fabio

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The ALMA REBELS Survey: dust continuum detections at z > 6.5 by Inami, Hanae, Algera, Hiddo S B, Schouws, Sander, Sommovigo, Laura, Bouwens, Rychard, Smit, Renske, Stefanon, Mauro, Bowler, Rebecca A A, Endsley, Ryan, Ferrara, Andrea, Oesch, Pascal, Stark, Daniel, Aravena, Manuel, Barrufet, Laia, da Cunha, Elisabete, Dayal, Pratika, De Looze, Ilse, Fudamoto, Yoshinobu, Gonzalez, Valentino, Graziani, Luca, Hodge, Jacqueline A, Hygate, Alexander P S, Nanayakkara, Themiya, Pallottini, Andrea, Riechers, Dominik A, Schneider, Raffaella, Topping, Michael, van der Werf, Paul

“…ABSTRACT We report 18 dust continuum detections (≥3.3σ) at ∼88 and 158 $\mu{\rm m}$ out of 49 ultraviolet (UV)-bright galaxies (MUV < −21.3 mag) at $z$ > 6.5,…”
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The ALMA REBELS Survey: specific star formation rates in the reionization era by Topping, Michael W, Stark, Daniel P, Endsley, Ryan, Bouwens, Rychard J, Schouws, Sander, Smit, Renske, Stefanon, Mauro, Inami, Hanae, Bowler, Rebecca A A, Oesch, Pascal, Gonzalez, Valentino, Dayal, Pratika, da Cunha, Elisabete, Algera, Hiddo, van der Werf, Paul, Pallottini, Andrea, Barrufet, Laia, Schneider, Raffaella, De Looze, Ilse, Sommovigo, Laura, Whitler, Lily, Graziani, Luca, Fudamoto, Yoshinobu, Ferrara, Andrea

“…ABSTRACT We present specific star formation rates (sSFRs) for 40 ultraviolet (UV)-bright galaxies at z ∼ 7–8 observed as part of the Reionization Era Bright…”
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The ALMA REBELS survey: the dust-obscured cosmic star formation rate density at redshift 7 by Algera, Hiddo S B, Inami, Hanae, Oesch, Pascal A, Sommovigo, Laura, Bouwens, Rychard J, Topping, Michael W, Schouws, Sander, Stefanon, Mauro, Stark, Daniel P, Aravena, Manuel, Barrufet, Laia, da Cunha, Elisabete, Dayal, Pratika, Endsley, Ryan, Ferrara, Andrea, Fudamoto, Yoshinobu, Gonzalez, Valentino, Graziani, Luca, Hodge, Jacqueline A, Hygate, Alexander P S, de Looze, Ilse, Nanayakkara, Themiya, Schneider, Raffaella, van der Werf, Paul P

“…ABSTRACT Cosmic dust is an essential component shaping both the evolution of galaxies and their observational signatures. How quickly dust builds up in the…”
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The formation and coalescence sites of the first gravitational wave events by Schneider, Raffaella, Graziani, Luca, Marassi, Stefania, Spera, Mario, Mapelli, Michela, Alparone, Matteo, Bennassuti, Matteo de

“…Abstract We present a novel theoretical model to characterize the formation and coalescence sites of compact binaries in a cosmological context. This is based…”
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A Hide-and-seek Game: Looking for Population III Stars during the Epoch of Reionization through the He ii λ1640 Line by Venditti, Alessandra, Bromm, Volker, Finkelstein, Steven L., Calabrò, Antonello, Napolitano, Lorenzo, Graziani, Luca, Schneider, Raffaella

“…The gas surrounding first-generation (Population III, hereafter Pop III) stars is expected to emit a distinct signature in the form of the He ii recombination…”
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Clumping factors of H ii, He ii and He iii by Jeeson-Daniel, Akila, Ciardi, Benedetta, Graziani, Luca

“…Estimating the intergalactic medium ionization level of a region needs proper treatment of the reionization process for a large representative volume of the…”
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Radiative transfer of ionizing radiation through gas and dust: grain charging in star-forming regions by Glatzle, Martin, Graziani, Luca, Ciardi, Benedetta

“…ABSTRACT The presence of charged dust grains is known to have a profound impact on the physical evolution of the multiphase interstellar medium (ISM). Despite…”
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Are we surprised to find SMBHs with JWST at z ≥ 9? by Schneider, Raffaella, Valiante, Rosa, Trinca, Alessandro, Graziani, Luca, Volonteri, Marta, Maiolino, Roberto

“…ABSTRACT JWST is unveiling for the first time accreting black holes (BHs) with masses of 106 − 107 M⊙ at z > 4, with the most distant residing in GNz11 at z =…”
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Lyα-emitting galaxies as a probe of reionization: large-scale bubble morphology and small-scale absorbers by Kakiichi, Koki, Dijkstra, Mark, Ciardi, Benedetta, Graziani, Luca

“…The visibility of Lya-emitting galaxies during the Epoch of Reionization is controlled by both diffuse H I patches in large-scale bubble morphology and…”
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