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20012026
most citedBAT AGN Spectroscopic Survey - V. X-ray properties of the Swift/BAT 70-month AGN catalog

555 citations

Showing astro-ph.COShow all

6 papers · 1 filter

astro-ph.CO2025★ 38 cited

The Local Distance Network: a community consensus report on the measurement of the Hubble constant at 1% precision

H0DN Collaboration, Stefano Casertano, Gagandeep Anand +35

The direct, empirical determination of the local value of the Hubble constant (H0) has markedly advanced thanks to improved instrumentation, measurement techniques, and distance es…

astro-ph.CO2024★ 18 cited

A New Precise Determination of the Primordial Abundance of Deuterium: Measurement in the metal-poor sub-DLA system at z=3.42 towards quasar J1332+0052

P. A. Kislitsyn, S. A. Balashev, M. T. Murphy +3

The theory of Big Bang nucleosynthesis, coupled with an estimate of the primordial deuterium abundance (D/H)_pr, offers insights into the baryon density of the Universe. Independen…

astro-ph.CO2023★ 1 cited

Scale invariant curvature perturbations from a spontaneously decaying scalar field

Richard Lieu, Chun-Hui Shi

The evolution of superhorizon curvature perturbations in a two-component interacting universe is considered. It is found that adiabatic modes conserve the total curvature perturbat…

astro-ph.CO2022

Primordial helium-3 redux: The helium isotope ratio of the Orion nebula

Ryan J. Cooke, Pasquier Noterdaeme, James W. Johnson +5

We report the first direct measurement of the helium isotope ratio, 3He/4He, outside of the Local Interstellar Cloud, as part of science verification observations with the upgraded…

astro-ph.CO2016★ 33 cited

Lyman-Alpha Emitter Galaxies at z ~ 2.8 in the Extended Chandra Deep Field-South: I. Tracing the Large-Scale Structure via Lyman-Alpha Imaging

Zhen-Ya Zheng, Sangeeta Malhotra, James E. Rhoads +4

We present a narrowband survey with three adjacent filters for z=2.8--2.9 Lyman Alpha Emitter (LAE) galaxies in the Extended Chandra Deep Field South (ECDFS), along with spectrosco…

astro-ph.CO2011

Constraining the Properties of SNe~Ia Progenitors from Light Curves

B. Sadler, P. Hoeflich, E. Baron +6

We present an analysis of high precision V light curves (LC) for 18 local Type Ia Supernovae, SNe Ia, as obtained with the same telescope and setup at the Las Campanas Observatory…