550 citations · 2.5k across the 71 of their papers we have counts for
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Constraining dark matter decays with cosmic microwave background and weak lensing shear observations
Jozef Bucko, Sambit K. Giri, Aurel Schneider
From observations at low and high redshifts, it is well known that the bulk of dark matter (DM) has to be stable or at least very long-lived. However, the possibility that a small…
Suppressing variance in 21-cm signal simulations during reionization
Sambit K. Giri, Aurel Schneider, Francisco Maion +1
Current best limits on the 21-cm signal during reionization are provided at large scales (100 Mpc). To model these scales, enormous simulation volumes are required which a…
Assessing the impact of two independent direction-dependent calibration algorithms on the LOFAR 21-cm signal power spectrum
H. Gan, F. G. Mertens, L. V. E. Koopmans +11
Detecting the 21-cm signal from the Epoch of Reionisation (EoR) is challenging due to the strong astrophysical foregrounds, ionospheric effects, radio frequency interference and in…
Statistical analysis of the causes of excess variance in the 21 cm signal power spectra obtained with the Low-Frequency Array
H. Gan, L. V. E Koopmans, F. G. Mertens +11
The detection of the 21 cm signal of neutral hydrogen from the Epoch of Reionization (EoR) is challenging due to bright foreground sources, radio frequency interference (RFI), the…
Imprints of fermionic and bosonic mixed dark matter on the 21-cm signal at cosmic dawn
Sambit K. Giri, Aurel Schneider
The 21-cm signal from the epoch of cosmic dawn prior to reionization consists of a promising observable to gain new insights into the dark matter (DM) sector. In this paper, we inv…