Zobrazeno 1 - 10
of 6 323
pro vyhledávání: '"A. Chandra Shekhar"'
The ability to differentiate between different models of inflation through the imprint of primordial non-Gaussianity (PNG) requires a tight constraint on the local PNG parameter $f_{\text{NL}}^{\text{loc}}$. Future large scale structure surveys like
Externí odkaz:
http://arxiv.org/abs/2412.03078
Autor:
Mishra, Arnab, Murmu, Chandra Shekhar, Datta, Kanan K., Choudhuri, Samir, Majumdar, Suman, Nasreen, Iffat, Ali, Sk. Saiyad
Measuring the properties of the intergalactic medium (IGM) and sources during the Epoch of Reionization (EoR) is of immense importance. We explore the prospects of probing the IGM and sources through redshifted 21-cm observations of individual ionize
Externí odkaz:
http://arxiv.org/abs/2408.01681
Autor:
Noble, Leon, Kamran, Mohd, Majumdar, Suman, Murmu, Chandra Shekhar, Ghara, Raghunath, Mellema, Garrelt, Iliev, Ilian T., Pritchard, Jonathan R.
The morphology of the 21-cm signal emitted by the neutral hydrogen present in the intergalactic medium (IGM) during the Epoch of Reionization (EoR) depends both on the properties of the sources of ionizing radiation and on the underlying physical pro
Externí odkaz:
http://arxiv.org/abs/2406.03118
Publikováno v:
Astronomy & Astrophysics, Volume 690, October 2024, id.A338, 20 pp
We study the importance of precise modelling of the photometric redshift error distributions on the estimation of parameters from cross correlation measurements and present a working example of the scattering matrix formalism to correct for the redsh
Externí odkaz:
http://arxiv.org/abs/2406.02857
Autor:
Cheng, Zi-Jia, Shao, Sen, Kim, Byunghoon, Cochran, Tyler A., Yang, Xian P., Yi, Changjiang, Jiang, Yu-Xiao, Zhang, Junyi, Hossain, Md Shafayat, Roychowdhury, Subhajit, Yilmaz, Turgut, Vescovo, Elio, Fedorov, Alexei, Chandra, Shekhar, Felser, Claudia, Chang, Guoqing, Hasan, M. Zahid
Kagome metals with charge density wave (CDW) order exhibit a broad spectrum of intriguing quantum phenomena. The recent discovery of the novel kagome CDW compound ScV$_6$Sn$_6$ has spurred significant interest. However, understanding the interplay be
Externí odkaz:
http://arxiv.org/abs/2402.02341
Traumatic Brain Injury (TBI) poses a significant global public health challenge, contributing to high morbidity and mortality rates and placing a substantial economic burden on healthcare systems worldwide. The diagnosis of TBI relies on clinical inf
Externí odkaz:
http://arxiv.org/abs/2401.03621
Publikováno v:
JCAP08(2024)032
It is believed that the first star-forming galaxies are the main drivers of cosmic reionization. It is usually assumed that there is a one-to-one relationship between the star formation rate (SFR) inside a galaxy and the host halo mass in semi-analyt
Externí odkaz:
http://arxiv.org/abs/2311.17062
Upcoming surveys of the large-scale structure of our Universe will employ a large coverage area of about half of the sky and will significantly increase the observational depth. With these surveys, we will be able to cross-correlate CMB gravitational
Externí odkaz:
http://arxiv.org/abs/2311.15261
Mild Traumatic Brain Injury (mTBI) is a common and challenging condition to diagnose accurately. Timely and precise diagnosis is essential for effective treatment and improved patient outcomes. Traditional diagnostic methods for mTBI often have limit
Externí odkaz:
http://arxiv.org/abs/2311.14197
Popular methods in compressed sensing (CS) are dependent on deep learning (DL), where large amounts of data are used to train non-linear reconstruction models. However, ensuring generalisability over and access to multiple datasets is challenging to
Externí odkaz:
http://arxiv.org/abs/2311.13144