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- Tata Institute of Fundamental ResearchIN697 papers
- Inter-University Centre for Astronomy and AstrophysicsIN178 papers
- National Radio Astronomy ObservatoryUS154 papers
- Commonwealth Scientific and Industrial Research OrganisationAU147 papers
- Raman Research InstituteIN128 papers
- International Centre for Radio Astronomy ResearchAU122 papers
- Netherlands Institute for Radio AstronomyNL115 papers
- Center for Astrophysics Harvard & SmithsonianUS111 papers
- Curtin UniversityAU109 papers
- Max Planck Institute for Radio AstronomyDE107 papers
- Centre National de la Recherche ScientifiqueFR105 papers
- University of ManchesterGB100 papers
13 papers · 2 filters
Photon Number Conserving Models of H II Bubbles during Reionization
Aseem Paranjape, T. Roy Choudhury, Hamsa Padmanabhan
Traditional excursion set based models of H II bubble growth during the epoch of reionization are known to violate photon number conservation, in the sense that the mass fraction i…
A search for Fast Radio Bursts at low frequencies with Murchison Widefield Array high time resolution imaging
S. J. Tingay, C. M. Trott, R. B. Wayth +26
We present the results of a pilot study search for Fast Radio Bursts (FRBs) using the Murchison Widefield Array (MWA) at low frequencies (139 - 170 MHz). We utilised MWA data obtai…
21-cm signature of the first sources in the Universe: Prospects of detection with SKA
Raghunath Ghara, T. Roy Choudhury, Kanan K. Datta
Currently several low-frequency experiments are being planned to study the nature of the first stars using the redshifted 21-cm signal from the cosmic dawn and epoch of reionizatio…
The redshift evolution of escape fraction of hydrogen ionizing photons from galaxies
Vikram Khaire, Raghunathan Srianand, Tirthankar Roy Choudhury +1
Using our cosmological radiative transfer code, we study the implications of the updated QSO emissivity and star formation history for the escape fraction (f_esc) of hydrogen ioniz…
Confirmation of Wide-Field Signatures in Redshifted 21 cm Power Spectra
Nithyanandan Thyagarajan, Daniel C. Jacobs, Judd D. Bowman +52
We confirm our recent prediction of the "pitchfork" foreground signature in power spectra of high-redshift 21 cm measurements where the interferometer is sensitive to large-scale s…
On the occurrence of Radio Halos in galaxy clusters - Insight from a mass-selected sample
V. Cuciti, R. Cassano, G. Brunetti +4
Giant radio halos (RH) are diffuse Mpc-scale synchrotron sources detected in a fraction of massive and merging galaxy clusters. An unbiased study of the statistical properties of R…