Search Results - "Sethi, Shiv K"
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Cosmological magnetic braking and the formation of high-redshift, super-massive black holes
Published in Monthly notices of the Royal Astronomical Society (01-06-2019)“…Abstract We study the effect of magnetic braking due to a primordial magnetic field in the context of the formation of massive (≳104M⊙) direct-collapse black…”
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Primordial magnetic fields in the post-recombination era and early reionization
Published in Monthly notices of the Royal Astronomical Society (11-01-2005)“…We explore the ways in which primordial magnetic fields influence the thermal and ionization history of the post-recombination Universe. After recombination,…”
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THEORETICAL ESTIMATES OF TWO-POINT SHEAR CORRELATION FUNCTIONS USING TANGLED MAGNETIC FIELDS
Published in The Astrophysical journal (20-03-2012)“…The existence of primordial magnetic fields can induce matter perturbations with additional power at small scales as compared to the usual [Gamma]CDM model. We…”
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Dissolving undercut microneedle arrays for multicomponent cutaneous vaccination
Published in Journal of controlled release (10-01-2020)“…The skin is an attractive tissue target for vaccination, as it is readily accessible and contains a dense population of antigen-presenting and immune-accessory…”
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Observing Nulling of Primordial Correlations via the 21-cm Signal
Published in Physical review letters (23-12-2022)“…The 21-cm line emitted by neutral hydrogen (HI) during the Dark Ages carries imprints of pristine primordial correlations. In models of inflation driven by a…”
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FIRST SEASON MWA EOR POWER SPECTRUM RESULTS AT REDSHIFT 7
Published in The Astrophysical journal (10-12-2016)“…ABSTRACT The Murchison Widefield Array (MWA) has collected hundreds of hours of Epoch of Reionization (EoR) data and now faces the challenge of overcoming…”
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Harnessing anti-cytomegalovirus immunity for local immunotherapy against solid tumors
Published in Proceedings of the National Academy of Sciences - PNAS (28-06-2022)“…Tumor infiltration by T cells profoundly affects cancer progression and responses to immunotherapy. However, the tumor immunosuppressive microenvironment can…”
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First limits on the 21 cm power spectrum during the Epoch of X-ray heating
Published in Monthly notices of the Royal Astronomical Society (21-08-2016)“…We present first results from radio observations with the Murchison Widefield Array seeking to constrain the power spectrum of 21 cm brightness temperature…”
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CHIPS: THE COSMOLOGICAL H i POWER SPECTRUM ESTIMATOR
Published in The Astrophysical journal (20-02-2016)“…ABSTRACT Detection of the cosmological neutral hydrogen signal from the Epoch of Reionization (EoR) and estimation of its basic physical parameters are…”
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THE MURCHISON WIDEFIELD ARRAY 21 cm POWER SPECTRUM ANALYSIS METHODOLOGY
Published in The Astrophysical journal (10-07-2016)“…ABSTRACT We present the 21 cm power spectrum analysis approach of the Murchison Widefield Array Epoch of Reionization project. In this paper, we compare the…”
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Observing the Influence of Growing Black Holes on the Pre-reionization IGM
Published in The Astrophysical journal (01-10-2018)“…We consider the cosmological implications of the formation of the first stellar size black holes (BHs) in the universe. Such BHs form and grow by accretion in…”
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Reionization constraints on primordial magnetic fields
Published in Monthly notices of the Royal Astronomical Society (01-08-2015)“…We study the impact of the extra density fluctuations induced by primordial magnetic fields on the reionization history in the redshift range: 6 < z < 10. We…”
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H i signal from re-ionization epoch
Published in Monthly notices of the Royal Astronomical Society (01-11-2005)“…We investigate the all-sky signal in redshifted atomic hydrogen (H i) line from the re-ionization epoch. We model the phase of re-ionization as multiple point…”
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Primordial magnetic fields and formation of molecular hydrogen
Published in Monthly notices of the Royal Astronomical Society (11-07-2008)“…We study the implications of primordial magnetic fields for the thermal and ionization history of the post-recombination era. In particular, we compute the…”
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15
H I ABSORPTION FROM THE EPOCH OF REIONIZATION AND PRIMORDIAL MAGNETIC FIELDS
Published in The Astrophysical journal (10-05-2014)“…We study the impact of primordial magnetic fields on the H I absorption from the epoch of reionization. The presence of these fields results in two distinct…”
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DELAY SPECTRUM WITH PHASE-TRACKING ARRAYS: EXTRACTING THE H i POWER SPECTRUM FROM THE EPOCH OF REIONIZATION
Published in The Astrophysical journal (20-12-2016)“…ABSTRACT The detection of redshifted 21 cm emission from the epoch of reionization (EoR) is a challenging task owing to strong foregrounds that dominate the…”
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17
Detecting neutral hydrogen in emission at redshift z ≃ 1
Published in Monthly notices of the Royal Astronomical Society (11-08-2011)“…We use a large N-body simulation to examine the detectability of H i in emission at redshift z≃ 1, and the constraints imposed by current observations on the…”
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PROBING PRIMORDIAL MAGNETIC FIELDS USING Ly[alpha] CLOUDS
Published in The Astrophysical journal (01-01-2013)“…From previous studies of the effect of primordial magnetic fields on early structure formation, we know that the presence of primordial magnetic fields during…”
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Generation of magnetic field in the pre-recombination era
Published in Monthly notices of the Royal Astronomical Society (21-10-2005)“…We study the possibility of generating magnetic fields during the evolution of electron, proton and photon plasma in the pre-recombination era. We show that a…”
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STUDY OF REDSHIFTED H I FROM THE EPOCH OF REIONIZATION WITH DRIFT SCAN
Published in The Astrophysical journal (20-09-2014)“…Detection of the epoch of reionization (EoR) in the redshifted 21 cm line is a challenging task. Here, we formulate the detection of the EoR signal using the…”
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