Search Results - "Nadathur, Seshadri"
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1
The Gravitational Lensing Signatures of BOSS Voids in the Cosmic Microwave Background
Published in The Astrophysical journal (20-02-2020)“…We report a detection of the gravitational lensing effect of cosmic voids from the Baryon Oscillation Spectroscopic Data Release 12 seen in the Planck 2018…”
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2
Tracing the gravitational potential using cosmic voids
Published in Monthly notices of the Royal Astronomical Society (01-06-2017)“…Abstract The properties of large underdensities in the distribution of galaxies in the Universe, known as cosmic voids, are potentially sensitive probes of…”
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3
Testing cosmology with a catalogue of voids in the BOSS galaxy surveys
Published in Monthly notices of the Royal Astronomical Society (01-09-2016)“…We present a public catalogue of voids in the Baryon Oscillation Spectroscopic Survey (BOSS) Data Release 11 LOWZ and CMASS galaxy surveys. This catalogue…”
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Seeing patterns in noise: gigaparsec-scale 'structures' that do not violate homogeneity
Published in Monthly notices of the Royal Astronomical Society (01-09-2013)“…Clowes et al. have recently reported the discovery of a large quasar group (LQG), dubbed the Huge-LQG, at redshift z ∼ 1.3 in the Data Release 7 (DR7) quasar…”
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A robust public catalogue of voids and superclusters in the SDSS Data Release 7 galaxy surveys
Published in Monthly notices of the Royal Astronomical Society (11-05-2014)“…The study of the interesting cosmological properties of voids in the Universe depends on the efficient and robust identification of such voids in galaxy…”
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Reconciling the local void with the CMB
Published in Physical review. D, Particles, fields, gravitation, and cosmology (07-03-2011)Get full text
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An accurate linear model for redshift space distortions in the void–galaxy correlation function
Published in Monthly notices of the Royal Astronomical Society (01-03-2019)Get full text
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Testing cosmology with a catalogue of voids in the BOSS galaxy surveys
Published 31-05-2016“…Monthly Notices of the Royal Astronomical Society 461 (2016) 358 We present a public catalogue of voids in the Baryon Oscillation Spectroscopic Survey (BOSS)…”
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Measurements of cosmic expansion and growth rate of structure from voids in the Sloan Digital Sky Survey between redshift 0.07 and 1.0
Published 07-10-2022“…MNRAS, 2022, Vol 516, Issue 3, 4307-4323 We present measurements of the anisotropic cross-correlation of galaxies and cosmic voids in data from the Sloan…”
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Cosmology beyond BAO from the 3D distribution of the Lyman-α forest
Published in Monthly notices of the Royal Astronomical Society (01-10-2021)“…ABSTRACT We propose a new method for fitting the full-shape of the Lyman-α (Ly α) forest 3D correlation function in order to measure the Alcock-Paczynski (AP)…”
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A Zeldovich reconstruction method for measuring redshift space distortions using cosmic voids
Published in Monthly notices of the Royal Astronomical Society (11-01-2019)Get full text
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12
An accurate linear model for redshift space distortions in the void-galaxy correlation function
Published 10-12-2018“…Redshift space distortions within voids provide a unique method to test for environmental dependence of the growth rate of structures in low density regions,…”
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13
Velocity profiles of matter and biased tracers around voids
Published 07-10-2022“…The velocity profile of galaxies around voids is a key ingredient for redshift space distortion (RSD) measurements made using the void-galaxy correlation…”
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14
Cosmological measurements from void-galaxy and galaxy-galaxy clustering in the Sloan Digital Sky Survey
Published 29-07-2023“…We present the cosmological implications of measurements of void-galaxy and galaxy-galaxy clustering from the Sloan Digital Sky Survey (SDSS) Main Galaxy…”
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15
Constraining {\nu}{\Lambda}CDM with density-split clustering
Published 14-04-2023“…The dependence of galaxy clustering on local density provides an effective method for extracting non-Gaussian information from galaxy surveys. The two-point…”
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Constraints on the Cosmic Expansion Rate at Redshift 2.3 from the Lyman-α Forest
Published in Physical review letters (12-05-2023)“…We determine the product of the expansion rate and angular-diameter distance at redshift z=2.3 from the anisotropy of Lyman-α (Lyα) forest correlations…”
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Constraints on decaying dark matter from weak lensing and cluster counts
Published 21-06-2019“…We revisit a cosmological constraint on dark matter decaying into dark radiation at late times. In Enqvist et al. (2015), we mainly focused on the effects of…”
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Testing Low-Redshift Cosmic Acceleration with Large-Scale Structure
Published in Physical review letters (05-06-2020)“…We examine the cosmological implications of measurements of the void-galaxy cross-correlation at redshift z = 0.57 combined with baryon acoustic oscillation…”
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Environmental dependence of X-ray and optical properties of galaxy clusters
Published 23-10-2020“…Galaxy clusters are widely used to constrain cosmological parameters through their properties, such as masses, luminosity and temperature distributions. One…”
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A Zeldovich reconstruction method for measuring redshift space distortions using cosmic voids
Published 16-10-2018“…Redshift space distortions (RSD) in the void-galaxy correlation $\xi^s$ provide information on the linear growth rate of structure in low density environments…”
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