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Sandeep Acharya
Sandeep Acharya
Open University of Israel
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CMB and BBN constraints on evaporating primordial black holes revisited
SK Acharya, R Khatri
Journal of Cosmology and Astroparticle Physics 2020 (06), 018, 2020
742020
Thermalization of large energy release in the early Universe
J Chluba, A Ravenni, SK Acharya
Monthly Notices of the Royal Astronomical Society 498 (1), 959-980, 2020
412020
CMB anisotropy and BBN constraints on pre-recombination decay of dark matter to visible particles
SK Acharya, R Khatri
Journal of Cosmology and Astroparticle Physics 2019 (12), 046, 2019
362019
Rich structure of nonthermal relativistic CMB spectral distortions from high energy particle cascades at redshifts
SK Acharya, R Khatri
Physical Review D 99 (4), 043520, 2019
312019
CMB spectral distortions constraints on primordial black holes, cosmic strings and long lived unstable particles revisited
SK Acharya, R Khatri
Journal of Cosmology and Astroparticle Physics 2020 (02), 010, 2020
232020
New CMB spectral distortion constraints on decaying dark matter with full evolution of electromagnetic cascades before recombination
SK Acharya, R Khatri
Physical Review D 99 (12), 123510, 2019
192019
Disentangling the primordial nature of stochastic gravitational wave backgrounds with CMB spectral distortions
B Cyr, T Kite, J Chluba, JC Hill, D Jeong, SK Acharya, B Bolliet, SP Patil
Monthly Notices of the Royal Astronomical Society 528 (1), 883-897, 2024
152024
The role of soft photon injection and heating in 21 cm cosmology
SK Acharya, B Cyr, J Chluba
Monthly Notices of the Royal Astronomical Society 523 (2), 1908-1918, 2023
152023
CMB spectral distortions from continuous large energy release
SK Acharya, J Chluba
Monthly Notices of the Royal Astronomical Society 515 (4), 5775-5789, 2022
132022
Constraints on the spectral signatures of superconducting cosmic strings
B Cyr, J Chluba, SK Acharya
Monthly Notices of the Royal Astronomical Society 525 (2), 2632-2653, 2023
122023
Can accreting primordial black holes explain the excess radio background?
SK Acharya, J Dhandha, J Chluba
Monthly Notices of the Royal Astronomical Society 517 (2), 2454-2461, 2022
112022
Cosmic string solution to the radio synchrotron background
B Cyr, J Chluba, SK Acharya
Physical Review D 109 (12), L121301, 2024
82024
Comparison of numerical methods for computing the repeated Compton scattering of photons in isotropic media
SK Acharya, J Chluba, A Sarkar
Monthly Notices of the Royal Astronomical Society 507 (2), 2052-2072, 2021
62021
A closer look at dark photon explanations of the excess radio background
SK Acharya, J Chluba
Monthly Notices of the Royal Astronomical Society 521 (3), 3939-3950, 2023
42023
Non-thermal Sunyaev–Zeldovich signal from radio galaxy lobes
SK Acharya, S Majumdar, BB Nath
Monthly Notices of the Royal Astronomical Society 503 (4), 5473-5484, 2021
42021
Constraints on Neff of high energy non-thermal neutrino injections upto> z∼ 108 from CMB spectral distortions and abundance of light elements
SK Acharya, R Khatri
Journal of Cosmology and Astroparticle Physics 2020 (11), 011, 2020
32020
Constraining broad photon spectrum injections from exotic and astrophysical sources
SK Acharya, B Cyr, J Chluba
Monthly Notices of the Royal Astronomical Society 527 (3), 9450-9460, 2024
22024
Importance of intracluster scattering and relativistic corrections from tSZ effect with cosmic infrared background
SK Acharya, J Chluba
Monthly Notices of the Royal Astronomical Society 519 (2), 2138-2154, 2023
22023
Soft Photon Heating: A Semi-Analytic Framework and Applications to cm Cosmology
B Cyr, SK Acharya, J Chluba
arXiv preprint arXiv:2404.11743, 2024
12024
The non-thermal secondary CMB anisotropies from a cosmic distribution of radio galaxy lobes
SK Acharya, S Majumdar, BB Nath
Monthly Notices of the Royal Astronomical Society 518 (1), 1171-1184, 2023
12023
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