Search Results - "Davis, Tamara M."
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Standard siren speeds: improving velocities in gravitational-wave measurements of H0
Published in Monthly notices of the Royal Astronomical Society (01-03-2020)“…ABSTRACT We re-analyse data from the gravitational-wave event GW170817 and its host galaxy NGC 4993 to demonstrate the importance of accurate total and…”
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Can redshift errors bias measurements of the Hubble Constant?
Published in Monthly notices of the Royal Astronomical Society (01-12-2019)“…ABSTRACT Redshifts have been so easy to measure for so long that we tend to neglect the fact that they too have uncertainties and are susceptible to systematic…”
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Simulations of the OzDES AGN reverberation mapping project
Published in Monthly notices of the Royal Astronomical Society (21-10-2015)“…As part of the Australian spectroscopic dark energy survey (OzDES) we are carrying out a large-scale reverberation mapping study of ≥500 quasars over five…”
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High-redshift standard candles: predicted cosmological constraints
Published in Monthly notices of the Royal Astronomical Society (11-07-2014)“…We investigate whether future measurements of high-redshift standard candles will be a powerful probe of dark energy, when compared to other types of planned…”
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The Effect of Peculiar Velocities on Supernova Cosmology
Published in The Astrophysical journal (01-11-2011)“…We analyze the effect that peculiar velocities have on the cosmological inferences we make using luminosity distance indicators, such as Type Ia supernovae. In…”
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The WiggleZ Dark Energy Survey: measuring the cosmic expansion history using the Alcock-Paczynski test and distant supernovae
Published in Monthly notices of the Royal Astronomical Society (01-12-2011)“…Astronomical observations suggest that today's Universe is dominated by a dark energy of unknown physical origin. One of the most notable results obtained from…”
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Using peculiar velocity surveys to constrain the growth rate of structure with the wide-angle effect
Published in Monthly notices of the Royal Astronomical Society (01-01-2023)“…ABSTRACT Amongst the most popular explanations for dark energy are modified theories of gravity. The galaxy overdensity and peculiar velocity fields help us to…”
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Faster cosmological analysis with power spectrum without simulations
Published in Monthly notices of the Royal Astronomical Society (06-05-2024)“…ABSTRACT Future surveys could obtain tighter constraints on the cosmological parameters with the galaxy power spectrum than with the cosmic microwave…”
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The effect of systematic redshift biases in BAO cosmology
Published in Monthly notices of the Royal Astronomical Society (01-05-2021)“…ABSTRACT With the remarkable increase in scale and precision provided by upcoming galaxy redshift surveys, systematic errors that were previously negligible…”
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The Sloan Digital Sky Survey peculiar velocity catalogue
Published in Monthly notices of the Royal Astronomical Society (20-07-2022)“…ABSTRACT We present a new catalogue of distances and peculiar velocities (PVs) of 34 059 early-type galaxies derived from fundamental plane (FP) measurements…”
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A blinded determination of H0 from low-redshift Type Ia supernovae, calibrated by Cepheid variables
Published in Monthly notices of the Royal Astronomical Society (01-10-2017)Get full text
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Are the spiral arms in the MWC 758 protoplanetary disc driven by a companion inside the cavity?
Published in Monthly notices of the Royal Astronomical Society (01-10-2020)“…ABSTRACT Spiral arms in protoplanetary discs are thought to be linked to the presence of companions. We test the hypothesis that the double spiral arm…”
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Deriving accurate peculiar velocities (even at high redshift)
Published in Monthly notices of the Royal Astronomical Society (01-08-2014)“…The way that peculiar velocities are often inferred from measurements of distances and redshifts makes an approximation, v p = cz − H 0 D, that gives…”
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The Pantheon+ Analysis: Cosmological Constraints
Published in The Astrophysical journal (01-10-2022)“…Abstract We present constraints on cosmological parameters from the Pantheon+ analysis of 1701 light curves of 1550 distinct Type Ia supernovae (SNe Ia)…”
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Evaluating bulk flow estimators for CosmicFlows–4 measurements
Published in Monthly notices of the Royal Astronomical Society (29-09-2023)“…ABSTRACT For over a decade there have been contradictory claims in the literature about whether the local bulk flow motion of galaxies is consistent or in…”
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Using peculiar velocity surveys to constrain neutrino masses
Published in Monthly notices of the Royal Astronomical Society (22-04-2022)“…ABSTRACT The presence of massive neutrinos in the early Universe is expected to have influenced the observed distribution of galaxies and their observed…”
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The Pantheon+ Analysis: The Full Data Set and Light-curve Release
Published in The Astrophysical journal (01-10-2022)“…Abstract Here we present 1701 light curves of 1550 unique, spectroscopically confirmed Type Ia supernovae (SNe Ia) that will be used to infer cosmological…”
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barry and the BAO model comparison
Published in Monthly notices of the Royal Astronomical Society (01-04-2020)“…ABSTRACT We compare the performance of four state-of-the-art models for extracting isotropic measurements of the baryon acoustic oscillation (BAO) scale. To do…”
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The DESI Bright Galaxy Survey: Final Target Selection, Design, and Validation
Published in The Astronomical journal (01-06-2023)“…Abstract Over the next 5 yr, the Dark Energy Spectroscopic Instrument (DESI) will use 10 spectrographs with 5000 fibers on the 4 m Mayall Telescope at Kitt…”
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