41 citations · 136 across the 23 of their papers we have counts for
21 papers · 1 filter
When galaxies burst II. Implications of enhanced burstiness for the 21-cm Cosmic Dawn signal
Hovav Lazare, Sarah Libanore, Eleonora Vanzan +2
Recent JWST observations suggest that star formation in the early universe was substantially burstier than assumed in standard models. Such burstiness can be described as a stochas…
Mitigating galaxy systematics with gravitational wave clustering
Caterina Scarpel, Nicola Bellomo, Sarah Libanore +2
Although currently poorly constrained, cosmological ultra-large scales are expected to provide formidable tests not only of General Relativity, but also of the content of CDM an…
Cosmology with Multi-Wavelength Line Intensity Mapping Synergies in the SKAO Era
Debanjan Sarkar, Suman Majumdar, Chandra Shekhar Murmu +21
Line intensity mapping (LIM) has emerged as a powerful tool for surveying the large-scale structure of the Universe across cosmic time by measuring spatial fluctuations in the cumu…
Cosmology with Intensity Mapping via Statistics Beyond the Power Spectrum in the SKAO Era
Suman Majumdar, Debanjan Sarkar, Leon Noble +38
The cosmological distribution of neutral hydrogen (HI) during the post-reionization era is highly non-Gaussian due to the underlying non-linear structure formation, complex galaxy…
Using SKAO to Understand the Clustering of Gravitational Wave Sources
Michele Bosi, Sarah Libanore, Nicola Bellomo +4
Coalescing Binary Black Holes (BBHs) trace the Large-Scale Structure (LSS) of the Universe, and their clustering properties can be extracted from Gravitational Wave (GW) data. Next…
Reionization Bubbles from Real-Space Cross Correlations of Line Intensity Maps
Emilie Thélie, Sarah Libanore, Yonatan Sklansky +2
We propose a new way to reconstruct the ionized-bubble size distribution during the Epoch of Reionization (EoR) through the real-space cross-correlation of 21-cm and star-forming l…
A New Boundary Condition on Reionization
Sarah Libanore, Ely D. Kovetz, Julian B. Munoz +2
The epoch of reionization (EoR) marks the last phase transition of hydrogen in our Universe, as it evolves from cold and neutral to hot and ionized in the intergalactic medium (IGM…
oLIMpus: An Effective Model for Line Intensity Mapping Auto- and Cross- Power Spectra in Cosmic Dawn and Reionization
Sarah Libanore, Julian B. Munoz, Ely D. Kovetz
Line-intensity mapping (LIM) is emerging as a powerful probe of the high-redshift Universe, with a growing number of LIM experiments targeting various spectral lines deep into the…
Joint 21-cm and CMB Forecasts for Constraining Self-Interacting Massive Neutrinos
Sarah Libanore, Subhajit Ghosh, Ely D. Kovetz +2
Self-interacting neutrinos provide an intriguing extension to the Standard Model, motivated by both particle physics and cosmology. Recent cosmological analyses suggest a bimodal p…
Towards a multi-tracer neutrino mass measurement with line-intensity mapping
Gali Shmueli, Sarah Libanore, Ely D. Kovetz
Accurately determining neutrino masses is a main objective of contemporary cosmology. Since massive neutrinos affect structure formation and evolution, probes of large scale struct…
Does it matter? A more careful treatment of density fluctuations in 21-cm simulations
Jordan Flitter, Sarah Libanore, Ely D. Kovetz
The cosmological 21-cm signal is sourced from hyperfine transitions in neutral hydrogen atoms. Yet, although the abundance of hydrogen atoms follows the baryon density field, semi-…
Gravitational wave background from primordial black holes in globular clusters
Eleonora Vanzan, Sarah Libanore, Lorenzo Valbusa Dall'Armi +2
Primordial black holes still represent a viable candidate for a significant fraction, if not for the totality, of dark matter. If these compact objects have masses of order tens of…
Upcoming searches for decaying dark matter with ULTRASAT ultraviolet maps
Sarah Libanore, Ely D. Kovetz
Decaying dark matter (DDM) can be tested via different astrophysical and cosmological probes. In particular, particles in the 9.5 - 30 eV mass range that decay into monochro…
Constraining ultraviolet emission with the upcoming ULTRASAT satellite
Sarah Libanore, Ely D. Kovetz
The Extragalactic Background Light (EBL) carries a huge astrophysical and cosmological content: its frequency spectrum and redshift evolution are determined by the integrated emiss…
Effects of feedback-free starburst galaxies on the 21-cm signal and reionization history
Sarah Libanore, Jordan Flitter, Ely D. Kovetz +2
Different star-formation models at Cosmic Dawn produce detectable signatures in the observables of upcoming 21-cm experiments. In this work, we consider the physical scenario of fe…
Constraining Primordial Magnetic Fields with Line-Intensity Mapping
Tal Adi, Sarah Libanore, Hector Afonso G. Cruz +1
Primordial magnetic fields (PMFs) offer a compelling explanation for the origin of observed magnetic fields, especially on extragalactic scales. Such PMFs give rise to excess of po…
Signatures of primordial black holes in gravitational wave clustering
Sarah Libanore, Michele Liguori, Alvise Raccanelli
The possible existence of primordial black holes (PBHs) is an open question in modern cosmology. Among the probes to test it, gravitational waves (GW) coming from their mergers con…
Clustering of binary black hole mergers: a detailed analysis of the EAGLE+MOBSE simulation
Matteo Peron, Sarah Libanore, Andrea Ravenni +2
We perform a detailed study of the cosmological bias of gravitational gave (GW) events produced by binary black hole mergers (BBHM). We start from a BBHM distribution modeled insid…
Unveiling cosmological information on small scales with line intensity mapping
Sarah Libanore, Caner Unal, Debanjan Sarkar +1
One of the toughest challenges in modern cosmology is to probe the small scales Mpc in the matter power spectrum and clustering. We show that such small scales…
Clustering of Gravitational Wave and Supernovae events: a multitracer analysis in Luminosity Distance Space
Sarah Libanore, Maria Celeste Artale, Dionysios Karagiannis +5
We study the clustering of Gravitational Wave (GW) merger events and Supernovae IA (SN), as cosmic tracers in Luminosity Distance Space. We modify the publicly available CAMB code…
Gravitational Wave mergers as tracers of Large Scale Structures
S. Libanore, M. C. Artale, D. Karagiannis +6
Clustering measurements of Gravitational Wave (GW) mergers in Luminosity Distance Space can be used in the future as a powerful tool for Cosmology. We consider tomographic measurem…