788 citations · 2.3k across the 36 of their papers we have counts for
36 papers
Rapid onset of the 21-cm signal suggests a preferred mass range for dark matter particle
Venno Vipp, Andi Hektor, Gert Hütsi
We are approaching a new era to probe the 21-cm neutral hydrogen signal from the period of cosmic dawn. This signal offers a unique window to the virgin Universe, e.g., to study da…
Atmospheric ray tomography for low-Z materials: implementing new methods on a proof-of-concept tomograph
Gholamreza Anbarjafari, Aivo Anier, Egils Avots +9
Cosmic rays interacting with the atmosphere result in a flux of secondary particles including muons and electrons. Atmospheric ray tomography (ART) uses the muons and electrons for…
Improved bounds on singlet dark matter
Andi Hektor, Andrzej Hryczuk, Kristjan Kannike
We reconsider complex scalar singlet dark matter stabilised by a symmetry. We refine the stability bounds on the potential and use constraints from unitarity on sc…
Constraints on ALPs and excited dark matter from the EDGES 21-cm absorption signal
Andi Hektor, Gert Hütsi, Luca Marzola +1
The recent observation of the 21-cm absorption signal by the EDGES experiment provides a new observational window into the dynamics of the young Universe. Based on this result, we…
Constraints on primordial black hole dark matter from Galactic center X-ray observations
Andi Hektor, Gert Hütsi, Martti Raidal
Surprisingly high masses of the black holes inferred from the LIGO & Virgo gravitational wave measurements have lead to speculations that the observed mergers might be due to ${\ca…
The EDGES 21 cm Anomaly and Properties of Dark Matter
Sean Fraser, Andi Hektor, Gert Hütsi +8
The recently claimed anomaly in the measurement of the 21 cm hydrogen absorption signal by EDGES at , if cosmological, requires the existence of new physics. The possible…