Primordial black holes and their gravitational-wave signatures
In the recent years, primordial black holes (PBHs) have emerged as one of the most
interesting and hotly debated topics in cosmology. Among other possibilities, PBHs could …
interesting and hotly debated topics in cosmology. Among other possibilities, PBHs could …
Near-field cosmology with extremely metal-poor stars
The oldest, most metal-poor stars in the Galactic halo and satellite dwarf galaxies present an
opportunity to explore the chemical and physical conditions of the earliest star-forming …
opportunity to explore the chemical and physical conditions of the earliest star-forming …
Science with the Einstein Telescope: a comparison of different designs
Abstract The Einstein Telescope (ET), the European project for a third-generation
gravitational-wave detector, has a reference configuration based on a triangular shape …
gravitational-wave detector, has a reference configuration based on a triangular shape …
Primordial black holes
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Searching for a subpopulation of primordial black holes in LIGO-Virgo gravitational-wave data
With several dozen binary black hole events detected by LIGO-Virgo to date and many more
expected in the next few years, gravitational-wave astronomy is shifting from individual …
expected in the next few years, gravitational-wave astronomy is shifting from individual …
Bayesian evidence for both astrophysical and primordial black holes: map** the GWTC-2 catalog to third-generation detectors
We perform a hierarchical Bayesian analysis of the GWTC-2 catalog to investigate the mixed
scenario in which the merger events are explained by black holes of both astrophysical and …
scenario in which the merger events are explained by black holes of both astrophysical and …
Monoenergetic beams of relativistic electrons from intense laser–plasma interactions
High-power lasers that fit into a university-scale laboratory can now reach focused
intensities of more than 1019 W cm-2 at high repetition rates. Such lasers are capable of …
intensities of more than 1019 W cm-2 at high repetition rates. Such lasers are capable of …
Cosmology at low frequencies: The 21 cm transition and the high-redshift Universe
Observations of the high-redshift Universe with the 21cm hyperfine line of neutral hydrogen
promise to open an entirely new window onto the early phases of cosmic structure formation …
promise to open an entirely new window onto the early phases of cosmic structure formation …
Impact of radiative feedback on the initial mass function of metal-poor stars
The stellar initial mass function (IMF) in the early universe is essential to understand the
formation of ancient galaxies. To this end, we conduct a series of long-term radiation …
formation of ancient galaxies. To this end, we conduct a series of long-term radiation …
Transition of the initial mass function in the metal-poor environments
We study star cluster formation in a low-metallicity environment using three-dimensional
hydrodynamic simulations. Starting from a turbulent cloud core, we follow the formation and …
hydrodynamic simulations. Starting from a turbulent cloud core, we follow the formation and …