84 citations · 185 across the 14 of their papers we have counts for
13 papers · 1 filter
Probing the baryonic--dark matter connection in galaxy clusters using X-rays with gated recurrent unit neural networks
Asif Iqbal, Subhabrata Majumdar, Weiguang Cui +3
Accurate cluster mass measurements are crucial for cosmology, yet conventional hydrostatic equilibrium (HSE) methods can suffer from systematic biases, particularly in dynamically…
Deriving accurate galaxy cluster masses using X-ray thermodynamic profiles and graph neural networks
Asif Iqbal, Subhabrata Majumdar, Elena Rasia +4
Precise determination of galaxy cluster masses is crucial for establishing reliable mass-observable scaling relations in cluster cosmology. We employ graph neural networks (GNNs) t…
CHEX-MATE: CLUster Multi-Probes in Three Dimensions (CLUMP-3D), I. Gas Analysis Method using X-ray and Sunyaev-Zel'dovich Effect Data
Junhan Kim, Jack Sayers, Mauro Sereno +23
Galaxy clusters are the products of structure formation through myriad physical processes that affect their growth and evolution throughout cosmic history. As a result, the matter…
CHEX-MATE: Constraining the origin of the scatter in galaxy cluster radial X-ray surface brightness profiles
I. Bartalucci, S. Molendi, E. Rasia +25
We investigate the statistical properties and the origin of the scatter within the spatially resolved surface brightness profiles of the CHEX-MATE sample, formed by 118 galaxy clus…
Exploring diffuse radio emission in galaxy clusters and groups with the uGMRT and the SKA
Surajit Paul, Ruta Kale, Abhirup Datta +13
Diffuse radio emission has been detected in a considerable number of galaxy clusters and groups, revealing the presence of pervasive cosmic magnetic fields, and of relativistic par…
Heating of the intracluster medium by buoyant bubbles and sound waves
Asif Iqbal, Subhabrata Majumdar, Biman B. Nath +1
Active galactic nuclei (AGN) powered by the central Super-Massive Black Holes (SMBHs) play a major role in modifying the thermal properties of the intracluster medium (ICM). In thi…
The Cluster HEritage project with XMM-Newton: Mass Assembly and Thermodynamics at the Endpoint of structure formation. I. Programme overview
MATE Collaboration, M. Arnaud, S. Ettori +66
The Cluster HEritage project with XMM-Newton - Mass Assembly and Thermodynamics at the Endpoint of structure formation (CHEX-MATE) is a three mega-second Multi-Year Heritage Progra…
Confronting phantom inflation with Planck data
Asif Iqbal, Manzoor A. Malik, Mussadiq H. Qureshi
The latest Planck results are in excellent agreement with the theoretical expectations predicted from standard normal inflation based on slow-roll approximation which assumes equat…
Correlations of the feedback energy and BCG radio luminosity in galaxy clusters
Asif Iqbal, Ruta Kale, Biman B. Nath +1
We study the excess entropy and the corresponding non-gravitational feedback energy () in the intra-cluster medium (ICM) by considering a sample of 38 galaxy clusters…
AGN feedback with the Square Kilometer Array (SKA) and implications for cluster physics and cosmology
Asif Iqbal, Ruta Kale, Subhabrata Majumdar +5
AGN feedback is regarded as an important non-gravitational process in galaxy clusters, providing useful constraints on large-scale structure formation. It modifies the structure an…
Excess entropy and energy feedback from within cluster cores up to r
Asif Iqbal, Subhabrata Majumdar, Biman B. Nath +3
We estimate the "non-gravitational" entropy-injection profiles, , and the resultant energy feedback profiles, , of the intracluster medium for 17 clusters using their Planc…
Low- power suppression in punctuated inflation
Mussadiq H. Qureshi, Asif Iqbal, Manzoor A. Malik +1
Motivated by Planck confirmation of an anomalously low value of the CMB temperature fluctuations up to multipole , we in this paper try to explain such feature by investig…
Little evidence for entropy and energy excess beyond - An end to ICM preheating?
Asif Iqbal, Subhabrata Majumdar, Biman B. Nath +3
Non-gravitational feedback affects the nature of the intra-cluster medium (ICM). X-ray cooling of the ICM and in situ energy feedback from AGN's and SNe as well as {\it preheating}…