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- Homi Bhabha National InstituteIN282 papers
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5 papers · 2 filters
Cosmic Microwave Background Polarization Signals from Tangled Magnetic Fields
T. R. Seshadri, Kandaswamy Subramanian
Tangled, primordial cosmic magnetic fields create small rotational velocity perturbations on the last scattering surface (LSS) of the cosmic microwave background radiation (CMBR).…
Constraints on Omega_B, Omega_m and h from MAXIMA and BOOMERANG
T. Padmanabhan, Shiv K. Sethi
We analyse the BOOMERANG and MAXIMA results in the context of models with and . We attempt to constrain three other parameters---, , and -…
A Comparison of Simulated and Analytic Major Merger Counts
J. D. Cohn, J. S. Bagla, Martin White
We use large volume, high resolution, N-body simulations of 3 different CDM models, with different clustering strengths, to generate dark matter halo merging histories. Over the…
Using HI to probe large scale structures at z ~ 3
Somnath Bharadwaj, Biman B. Nath, Shiv K. Sethi
The redshifted 1420 MHz emission from the HI in unresolved damped Lyman-αclouds at high z will appear as a background radiation in low frequency radio observations. This holds the…
On the Clustering of GRBs on the Sky
Shiv K. Sethi, S. G. Bhargavi, Jochen Greiner
The two-point correlation of the 4th (current) BATSE catalog (2494 objects) is calculated. It is shown to be consistent with zero at nearly all angular scales of interest. Assuming…