Mapper of the IGM spin temperature: instrument overview
RA Monsalve, C Altamirano, V Bidula… - Monthly Notices of …, 2024 - academic.oup.com
The observation of the global 21 cm signal produced by neutral hydrogen gas in the
intergalactic medium (IGM) during the Dark Ages, Cosmic Dawn, and Epoch of Reionization …
intergalactic medium (IGM) during the Dark Ages, Cosmic Dawn, and Epoch of Reionization …
Anticipating a new physics signal in upcoming 21-cm power spectrum observations
Dark matter–baryon interactions can cool the baryonic fluid, which has been shown to
modify the cosmological 21-cm global signal. We show that in a two-component dark sector …
modify the cosmological 21-cm global signal. We show that in a two-component dark sector …
A Bayesian approach to modelling spectrometer data chromaticity corrected using beam factors–I. Mathematical formalism
Accurately accounting for spectral structure in spectrometer data induced by instrumental
chromaticity on scales relevant for detection of the 21-cm signal is among the most …
chromaticity on scales relevant for detection of the 21-cm signal is among the most …
Detecting Cosmic 21 cm global signal using an improved polynomial fitting algorithm
Detecting the cosmic 21 cm signal from epoch of reionization has always been a difficult
task. Although the Galactic foreground can be regarded as a smooth power-law spectrum …
task. Although the Galactic foreground can be regarded as a smooth power-law spectrum …
PRATUSH experiment concept and design overview
PRATUSH–Probing ReionizATion of the Universe using Signal from Hydrogen–is a
proposed cosmology experiment to detect the global red-shifted 21-cm signal from the …
proposed cosmology experiment to detect the global red-shifted 21-cm signal from the …
Inhomogeneous energy injection in the 21-cm power spectrum: sensitivity to dark matter decay
The 21-cm signal provides a novel avenue to measure the thermal state of the universe
during cosmic dawn and reionization (redshifts $ z\sim 5-30$), and thus to probe energy …
during cosmic dawn and reionization (redshifts $ z\sim 5-30$), and thus to probe energy …
Simulating the Detection of the Global 21 cm Signal with MIST for Different Models of the Soil and Beam Directivity
RA Monsalve, CH Bye, JL Sievers… - The Astrophysical …, 2024 - iopscience.iop.org
The Mapper of the IGM Spin Temperature (MIST) is a new ground-based, single-antenna,
radio experiment attempting to detect the global 21 cm signal from the Dark Ages and …
radio experiment attempting to detect the global 21 cm signal from the Dark Ages and …
A general Bayesian framework to account for foreground map errors in global 21-cm experiments
Measurement of the global 21-cm signal during Cosmic Dawn and the Epoch of
Reionization is made difficult by bright foreground emission which is 2–5 orders of …
Reionization is made difficult by bright foreground emission which is 2–5 orders of …
Fitting and Comparing Galactic Foreground Models for Unbiased 21 cm Cosmology
JJ Hibbard, D Rapetti, JO Burns… - The Astrophysical …, 2023 - iopscience.iop.org
Accurate detection of the cosmological 21 cm global signal requires galactic foreground
models that can remove power over 10 6. Although foreground and global signal models …
models that can remove power over 10 6. Although foreground and global signal models …
The effects of the antenna power pattern uncertainty within a global 21 cm experiment
J Cumner, C Pieterse, D De Villiers… - Monthly Notices of the …, 2024 - academic.oup.com
Measuring the redshifted sky-averaged neutral hydrogen 21 cm signal with a wide-band
antenna operating at metre wavelengths can probe the thermal history of the Universe and …
antenna operating at metre wavelengths can probe the thermal history of the Universe and …