Results 131 to 140 of about 11,049 (214)

Abstract Supplement HIV Glasgow 10–13 November 2024, Glasgow, UK/Virtual

open access: yes
Journal of the International AIDS Society, Volume 27, Issue S6, November 2024.
wiley   +1 more source

The Orbit and Dynamical Mass of Polaris: Observations with the CHARA Array

open access: yesThe Astrophysical Journal
The 30 yr orbit of the Cepheid Polaris has been followed with observations by the Center for High Angular Resolution Astronomy (CHARA) Array from 2016 through 2021.
Nancy Remage Evans   +21 more
doaj   +1 more source

APPLICATION OF CEPHEIDS TO DISTANCE SCALE: EXTENDING TO ULTRA-LONG PERIOD CEPHEIDS

open access: yesPublications of The Korean Astronomical Society, 2015
Classical Cepheids (hereafter Cepheids) belong to a class of important variable stars that can be used to determine distances to nearby galaxies via the famous period-luminosity (PL) relations, i.e. the Leavitt Law. In turn, these distances can then be used to calibrate a host of secondary distance indicators located well within the Hubble ow, and ...
openaire   +2 more sources

Tip of the Red Giant Branch Distances with JWST. II. I-band Measurements in a Sample of Hosts of 10 Type Ia Supernova Match HST Cepheids

open access: yesThe Astrophysical Journal
The Hubble Tension, a >5 σ discrepancy between direct and indirect measurements of the Hubble constant ( H _0 ), has persisted for a decade and motivated intense scrutiny of the paths used to infer H _0 .
Siyang Li   +9 more
doaj   +1 more source

Testing the Cosmic Distance Duality Relation Using Strong Gravitational Lensing Time Delays and Type Ia Supernovae

open access: yesThe Astrophysical Journal
We present a comprehensive test of the cosmic distance duality relation (DDR) using a combination of strong gravitational lensing (SGL) time delay measurements and Type Ia supernovae (SNe Ia) data.
Jing-Zhao Qi   +3 more
doaj   +1 more source

Readiness to transition to HPV self-collection from VIA screening: a mixed methods health systems assessment from Tamil Nadu, India. [PDF]

open access: yesBMC Health Serv Res
Oommen AM   +12 more
europepmc   +1 more source

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