234 citations · 1.3k across the 58 of their papers we have counts for
22 papers · 1 filter
Consistently Reproducing Early Galaxy Observations and 21-cm Signal during the Epoch of Reionization
Michele Bianco, Sambit K. Giri, Arghyadeep Basu\orcidlink +5
In the standard cosmological model, galaxies forming within dark matter haloes are the primary drivers of the Epoch of Reionization (EoR). The complex physics of galaxy formation i…
Dynamic Zoom Simulations of structure formation beyond standard cosmology
Riccardo Zangarelli, Marco Baldi, Federico Marinacci +1
(Abridged) A thorough interpretation of the current and upcoming generation of cosmological observations requires unprecedented large-scale, high-resolution simulations spanning mu…
The THESAN project: Lyman-alpha intensity mapping of cosmic reionization
Mouza Almualla, Aaron Smith, Rahul Kannan +6
Line Intensity Mapping (LIM) has garnered attention as a powerful cosmological probe, with next-generation instruments such as SPHEREx preparing to map the evolution of large-scale…
Detecting the signature of helium reionization through 3HeII 3.46cm line-intensity mapping
Benedetta Spina, Cristiano Porciani, Sarah E. I. Bosman +4
Helium reionization is the most recent phase change of the intergalactic medium, yet its timing and main drivers remain uncertain. Among the probes to trace its unfolding, the 3.46…
Probing Helium Reionization Through the Hyperfine Transition Line
Arghyadeep Basu, Benedetta Ciardi, Enrico Garaldi
We investigate the hyperfine transition of as a promising probe of the IGM during the final stages of helium reionization. Utilising the most recent helium re…
The THESAN project: environmental drivers of Local Group reionization
Yu Zhao, Aaron Smith, Rahul Kannan +5
The timing of cosmic reionization across Local Group (LG) analogues provides insights into their early histories and surrounding large-scale structure. Using the radiation-hydrodyn…
The galaxy-IGM connection in THESAN: the physics connecting the IGM Lyman- opacity and galaxy density in the reionization epoch
Enrico Garaldi, Verena Bellscheidt, A. Smith +1
The relation between the Lyman- effective optical depth of quasar sightlines () and the distribution of galaxies around them is an emerging probe of the connecti…
The galaxy-IGM connection in THESAN: observability and information content of the galaxy-Lyman- cross-correlation at z6
Enrico Garaldi, Verena Bellscheidt, Aaron Smith +1
The galaxy--Lyman- cross-correlation (GaLaCC) is a promising tool to study the interplay of galaxies and inter-galactic medium (IGM) in the first billion years of the Universe.…
Matter power spectrum induced by primordial magnetic fields: from the linear to the non-linear regime
Pranjal Ralegankar, Enrico Garaldi, Matteo Viel
Linear theory predicts that primordial magnetic fields (PMFs) enhance the matter power spectrum on small scales. However, the linear approximation breaks down on sufficiently small…
Cosmic variance suppression in radiation-hydrodynamic modeling of the reionization-era 21-cm signal
Anshuman Acharya, Enrico Garaldi, Benedetta Ciardi +1
The 21-cm line emitted by neutral hydrogen is the most promising probe of the Epoch of Reionization (EoR). Multiple radio interferometric instruments are on the cusp of detecting i…
CoReCon: an open, community-powered collection of Reionization constraints
Enrico Garaldi
The number of available constraints on the Universe during and before cosmic reionization is rapidly growing. These are often scattered across inhomogeneous formats, unit systems a…
The thesan project: public data release of radiation-hydrodynamic simulations matching reionization-era JWST observations
Enrico Garaldi, Rahul Kannan, Aaron Smith +13
Cosmological simulations serve as invaluable tools for understanding the Universe. However, the technical complexity and substantial computational resources required to generate su…
Bridging the Gap between Cosmic Dawn and Reionization favors Faint Galaxies-dominated Models
Ankita Bera, Sultan Hassan, Aaron Smith +4
It has been claimed that traditional models struggle to explain the tentative detection of the 21\,cm absorption trough centered at measured by the EDGES collaboration. O…
An Effective Bias Expansion for 21 cm Cosmology in Redshift Space
Wenzer Qin, Katelin Schutz, Aaron Smith +4
A near-future detection of the 21cm signal from the epoch of reionization will provide unique opportunities to probe the underlying cosmology, provided that such cosmological infor…
The THESAN project: predictions for multi-tracer line intensity mapping in the epoch of reionization
Rahul Kannan, Aaron Smith, Enrico Garaldi +5
Line intensity mapping (LIM) is rapidly emerging as a powerful technique to study galaxy formation and cosmology in the high-redshift Universe. We present LIM estimates of select s…
The THESAN project: Lyman-alpha emission and transmission during the Epoch of Reionization
A. Smith, R. Kannan, E. Garaldi +4
The visibility of high-redshift Lyman-alpha emitting galaxies (LAEs) provides important constraints on galaxy formation processes and the Epoch of Reionization (EoR). However, pred…
The THESAN project: properties of the intergalactic medium and its connection to Reionization-era galaxies
Enrico Garaldi, Rahul Kannan, Aaron Smith +4
The high-redshift intergalactic medium (IGM) and the primeval galaxy population are rapidly becoming the new frontier of extra-galactic astronomy. We investigate the IGM properties…
Dynamic Zoom Simulations: a fast, adaptive algorithm for simulating lightcones
Enrico Garaldi, Matteo Nori, Marco Baldi
The advent of a new generation of large-scale galaxy surveys is pushing cosmological numerical simulations in an uncharted territory. The simultaneous requirements of high resoluti…
Constraining the Tail-End of Reionization Using Lyman- Transmission Spikes
Enrico Garaldi, Nickolay Gnedin, Piero Madau
We investigate Lyman- transmission spikes at in synthetic quasar spectra, and discuss their connection to the properties of the intergalactic medium and their ability to…
The Goldilocks problem of the quasar contribution to reionization
Enrico Garaldi, Michele Compostella, Cristiano Porciani
The detection of an unexpectedly large number of faint candidate quasars (QSO) at has motivated Madau and Haardt to investigate a reionization scenario in which activ…
ZOMG-I. How the cosmic web inhibits halo growth and generates assembly bias
Mikolaj Borzyszkowski, Cristiano Porciani, Emilio Romano-Diaz +1
The clustering of dark matter haloes with fixed mass depends on their formation history, an effect known as assembly bias. We use zoom N -body simulations to investigate the origin…
Zoomed high-resolution simulations of Multi-coupled Dark Energy: cored galaxy density profiles at high redshift
E. Garaldi, M. Baldi, L. Moscardini
We perform for the first time high-resolution zoom-in re-simulations of individual halos in the context of the Multi-coupled Dark Energy (McDE) scenario, which is characterised by…