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9 papers · 2 filters
Investigating cosmic strings using large-volume hydrodynamical simulations in the context of JWST's massive UV-bright galaxies
Sonja M. Koehler, Hao Jiao, Rahul Kannan
Recent observations from the James Webb Space Telescope (JWST) have uncovered an unexpectedly large abundance of massive, UV-bright galaxies at high redshifts, presenting a signifi…
The Effects of Dark Matter Annihilation and Dark Matter-Baryon Velocity Offsets at Cosmic Dawn
Liqiang Hou, Katherine J. Mack
Dark matter annihilation has the potential to leave an imprint on the properties of the first luminous structures at Cosmic Dawn as well as the overall evolution of the intergalact…
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.…
The impact of baryons on the internal structure of dark matter haloes from dwarf galaxies to superclusters in the redshift range 0<z<7
Daniele Sorini, Sownak Bose, Rüdiger Pakmor +5
We investigate the redshift evolution of the concentration-mass relationship of dark matter haloes in state-of-the-art cosmological hydrodynamic simulations and their dark-matter-o…
CANUCS: Constraining the MACS J0416.1-2403 Strong Lensing Model with JWST NIRISS, NIRSpec and NIRCam
Gregor Rihtaršič, Maruša Bradač, Guillaume Desprez +18
(Abridged) The strong lensing models of galaxy clusters rely on the number and quality of multiple images with spectroscopic redshifts. We present an updated strong lensing model o…
Improving Photometric Galaxy Clustering Constraints With Cross-Bin Correlations
Jordan Krywonos, Jessica Muir, Matthew C. Johnson
Clustering studies in current photometric galaxy surveys focus solely on auto-correlations, neglecting cross-correlations between redshift bins. We evaluate the potential advantage…
Cosmological measurements from the CMB and BAO are insensitive to the tail probability in the assumed likelihood
Jordan Krywonos, Simone Paradiso, Alex Krolewski +2
When fitting cosmological models to data, a Bayesian framework is commonly used, requiring assumptions on the form of the likelihood and model prior. In light of current tensions b…
The boundary of cosmic filaments
Wei Wang, Peng Wang, Hong Guo +12
For decades, the boundary of cosmic filaments have been a subject of debate. In this work, we determine the physically-motivated radii of filaments by constructing stacked galaxy n…