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20152023
most citedFirst Results from HERA Phase I: Upper Limits on the Epoch of Reionization 21 cm Power Spectrum

200 citations · 1.3k across the 24 of their papers we have counts for

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8 papers · 1 filter

astro-ph.CO2022★ 184 cited

Improved Constraints on the 21 cm EoR Power Spectrum and the X-Ray Heating of the IGM with HERA Phase I Observations

The HERA Collaboration, Zara Abdurashidova, Tyrone Adams +92

We report the most sensitive upper limits to date on the 21 cm epoch of reionization power spectrum using 94 nights of observing with Phase I of the Hydrogen Epoch of Reionization…

astro-ph.CO2022★ 92 cited

Detection of Cosmological 21 cm Emission with the Canadian Hydrogen Intensity Mapping Experiment

CHIME Collaboration, Mandana Amiri, Kevin Bandura +30

We present a detection of 21-cm emission from large-scale structure (LSS) between redshift 0.78 and 1.43 made with the Canadian Hydrogen Intensity Mapping Experiment (CHIME). Radio…

astro-ph.CO2021★ 9 cited

On the detection of a cosmic dawn signal in the radio background

Saurabh Singh, Jishnu Nambissan T., Ravi Subrahmanyan +6

The astrophysics of cosmic dawn, when star formation commenced in the first collapsed objects, is predicted to be revealed as spectral and spatial signatures in the cosmic radio ba…

astro-ph.CO2021★ 200 cited

First Results from HERA Phase I: Upper Limits on the Epoch of Reionization 21 cm Power Spectrum

The HERA Collaboration, Zara Abdurashidova, James E. Aguirre +74

We report upper-limits on the Epoch of Reionization (EoR) 21 cm power spectrum at redshifts 7.9 and 10.4 with 18 nights of data ( hours of integration) from Phase I of the…

astro-ph.CO2020★ 47 cited

DAYENU: A Simple Filter of Smooth Foregrounds for Intensity Mapping Power Spectra

Aaron Ewall-Wice, Nicholas Kern, Joshua S. Dillon +14

We introduce DAYENU, a linear, spectral filter for HI intensity mapping that achieves the desirable foreground mitigation and error minimization properties of inverse co-variance w…

astro-ph.CO2019★ 122 cited

The redshifted 21-cm signal in the EDGES low-band spectrum

Saurabh Singh, Ravi Subrahmanyan

The EDGES collaboration reported the finding of an unexpectedly deep absorption in the radio background at 78 MHz and interpreted the dip as a first detection of redshifted 21-cm f…

astro-ph.CO2017★ 103 cited

SARAS 2 constraints on global 21-cm signals from the Epoch of Reionization

Saurabh Singh, Ravi Subrahmanyan, N. Udaya Shankar +8

Spectral distortions in the cosmic microwave background over the 40--200~MHz band are imprinted by neutral hydrogen in the intergalactic medium prior to the end of reionization. Th…

astro-ph.CO2017★ 121 cited

First results on the Epoch of Reionization from First Light with SARAS 2

Saurabh Singh, Ravi Subrahmanyan, N. Udaya Shankar +8

Long wavelength spectral distortions in the Cosmic Microwave Background arising from the 21-cm transition in neutral Hydrogen are a key probe of Cosmic Dawn and the Epoch of Reioni…