activity
20092026
most citedThe energy dependence of the centroid frequency and phase lag of the QPOs in GRS 1915+105

70 citations · 86 across the 11 of their papers we have counts for

collaborators
Showing astro-ph.COShow all

8 papers · 1 filter

astro-ph.CO2026

Cosmology with HI Intensity Mapping

Laura Wolz, Gabriele Autieri, José Luis Bernal +18

The redshifted spectral emission from neutral hydrogen (HI) at rest wavelength 21 cm can be used as a tracer of large-scale structure and its evolution. Within the HI intensity map…

astro-ph.CO2026

meer21cm: an Analysis Pipeline and Comprehensive Toolkit for HI Intensity Mapping

Zhaoting Chen, Steven Cunnington, Daniel Tassie +23

We present meer21cm, a comprehensive python package for cosmological data analysis of single-dish HI intensity mapping surveys. This package is simple to use, with a modularised co…

astro-ph.CO2026

Methodological Frontiers in 21-cm Intensity Mapping: the Treatment of Systematics and Foreground Contamination

Marta Spinelli, Matilde Barberi-Squarotti, José Luis Bernal +29

The distribution of neutral hydrogen (HI) in the post-reionization universe traces the cosmic large-scale structure and therefore serves as a powerful cosmological probe. An effici…

astro-ph.CO2026

Single-dish HI Intensity Mapping with the SKAO: Precursor Progress with MeerKAT's Large Area Synoptic Survey (MeerKLASS)

Steven Cunnington, Jingying Wang, Mario G. Santos +16

Using the SKAO to map the intensity of neutral hydrogen's 21cm emission line will be a golden opportunity to constrain models of cosmology. To access the largest cosmological scale…

astro-ph.CO2025

Revealing cosmological fluctuations in 21cm intensity maps with MeerKLASS: from maps to power spectra

Steven Cunnington, Matilde Barberi-Squarotti, José Luis Bernal +8

Mapping the integrated 21cm emission line from dark matter-tracing neutral hydrogen gas is the primary science goal for MeerKLASS (MeerKAT's Large Area Synoptic Survey). Prior to t…

astro-ph.CO2024★ 12 cited

Hydrogen intensity mapping with MeerKAT: Preserving cosmological signal by optimising contaminant separation

Isabella P. Carucci, José L. Bernal, Steven Cunnington +9

Removing contaminants is a delicate, yet crucial step in neutral hydrogen (HI) intensity mapping and often considered the technique's greatest challenge. Here, we address this chal…

astro-ph.CO2024★ 1 cited

MeerKLASS L-band deep-field intensity maps: entering the HI dominated regime

MeerKLASS Collaboration, Matilde Barberi-Squarotti, José L. Bernal +18

We present results from MeerKAT single-dish HI intensity maps, the final observations to be performed in L-band in the MeerKAT Large Area Synoptic Survey (MeerKLASS) campaign. The…

astro-ph.CO2023

Mitigating the effect of 1/f noise on the detection of the HI intensity mapping power spectrum from single-dish measurements

Melis O. Irfan, Yichao Li, Mario G. Santos +5

We present and compare several methods to mitigate time-correlated (1/f) noise within the HI intensity mapping component of the MeerKAT Large Area Synoptic Survey (MeerKLASS). By s…