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Measuring Cosmic Acceleration and Co...

Brout, Dillon.

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Measuring Cosmic Acceleration and Constraining Dark Energy Models With Transients Discovered in the Dark Energy Survey.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Measuring Cosmic Acceleration and Constraining Dark Energy Models With Transients Discovered in the Dark Energy Survey./
Author:	Brout, Dillon.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
Description:	182 p.
Notes:	Source: Dissertations Abstracts International, Volume: 81-04, Section: B.
Contained By:	Dissertations Abstracts International81-04B.
Subject:	Astrophysics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13903061
ISBN:	9781088337370

Measuring Cosmic Acceleration and Constraining Dark Energy Models With Transients Discovered in the Dark Energy Survey.
Brout, Dillon.

Measuring Cosmic Acceleration and Constraining Dark Energy Models With Transients Discovered in the Dark Energy Survey. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 182 p.

Source: Dissertations Abstracts International, Volume: 81-04, Section: B.

Thesis (Ph.D.)--University of Pennsylvania, 2019.

This item must not be sold to any third party vendors.

Now 20 years after the discovery of the accelerating universe, distance measurements from Type Ia supernovae over a large span in redshift remain a vital tool in constraining models for cosmic acceleration and dark energy. There has been much effort focused on generating larger and more precise datasets with good control of systematic uncertainties. The Dark Energy Survey Supernova Program (DES-SN) is the most recent such effort and has doubled the number of cosmologically viable SNe. In addition, the Dark Energy Survey Gravitational Waves program (DES-GW) identified the optical counterpart of the Binary Neutron star merger GW170817 and facilitated the first ever "standard siren" measurement of H0; a new cosmic probe independent of the local distance ladder.In this thesis I present the development of the photometric pipeline, detailed cosmological analyses and evaluation of systematic uncertainties, Hubble Diagram, cosmological parameter constraints, and tests of various models of dark energy for 207 spectroscopically classified type Ia supernovae (SNe Ia) from the first three years of the Dark Energy Survey Supernova Program (DES-SN) spanning a redshift range of 0.017<z<0.849. I also present the most precise measurement of H0 from the optical counterpart of the binary neutron star merger GW170817 discovered by LIGO and the DES Gravitational Wave followup program.

ISBN: 9781088337370Subjects--Topical Terms:

535904
Astrophysics.
Subjects--Index Terms:

Cosmology

Measuring Cosmic Acceleration and Constraining Dark Energy Models With Transients Discovered in the Dark Energy Survey.
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