497 citations · 8.4k across the 112 of their papers we have counts for
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Recombination-independent determination of the sound horizon and the Hubble constant from BAO
Levon Pogosian, Gong-Bo Zhao, Karsten Jedamzik
The Hubble tension and attempts to resolve it by modifying the physics of (or at) recombination motivate finding ways to determine and the sound horizon at the epoch of baryo…
Why reducing the cosmic sound horizon alone can not fully resolve the Hubble tension
Karsten Jedamzik, Levon Pogosian, Gong-Bo Zhao
The mismatch between the locally measured expansion rate of the universe and the one inferred from the cosmic microwave background measurements by Planck in the context of the stan…
CMB-S4: Forecasting Constraints on Primordial Gravitational Waves
S4 Collaboration, Kevork Abazajian, Graeme E. Addison +233
CMB-S4---the next-generation ground-based cosmic microwave background (CMB) experiment---is set to significantly advance the sensitivity of CMB measurements and enhance our underst…
Relieving the Hubble tension with primordial magnetic fields
Karsten Jedamzik, Levon Pogosian
The standard cosmological model determined from the accurate cosmic microwave background measurements made by the Planck satellite implies a value of the Hubble constant that…
The Case for Probe-class NASA Astrophysics Missions
Martin Elvis, Jon Arenberg, David Ballantyne +45
Astrophysics spans an enormous range of questions on scales from individual planets to the entire cosmos. To address the richness of 21st century astrophysics requires a correspond…
Decay of Cosmic Global String Loops
Ayush Saurabh, Tanmay Vachaspati, Levon Pogosian
We numerically study the decay of cosmic global string loops due to radiation of Goldstone bosons and massive scalar () particles. The length of loops we study range from 200-10…