Results 111 to 120 of about 2,384 (215)
Medical Journal of Australia, Volume 222, Issue 4, Page 172-178, March 2025.
Belinda Hengel +16 more
wiley +1 more source
Resolving the Hubble tension 68.261 and 73.510 km s−1 Mpc−1
AIP AdvancesWe present, when calculating distance ladders, that using the expression H = (km/Mpc)/AU (AU is the age of the universe) to describe the metric expansion of space in a universe with flat curvature, we resolve a baseline expression for the Hubble constant
Jody A. Geiger
doaj +1 more source
The extragalactic Cepheid bias: significant influence on the cosmic distance scale
, 2005 The unique measurements with the Hubble Space Telescope of Cepheid variable stars in nearby galaxies led to extragalactic distances that made the HST Key Project conclude that the Hubble constant is $H_0 = 72$ km s-1 Mpc-1.
P. Teerikorpi, G. Paturel
core +1 more source
Odessa Astronomical Publications, 2018 We present the results of a spectroscopic and photometric investigation of 15 objects from the open cluster NGC 5662, which contains the Cepheid V Cen. Besides the Cepheid, we studied one G-supergiant, two K-giants, four B-giants, and seven main sequence
I. A. Usenko +6 more
doaj +1 more source
A DISTANCE TO THE CEPHEID HV-829 IN THE SMALL MAGELLANIC CLOUD
, 1993 We present a distance determination to the Cepheid variable HV 829 in the Small Magellanic Cloud using the surface brightness technique. The distance so obtained is independent of any other astrophysical distance scale; in particular, it is independent ...
GIEREN, WP, MOFFETT, TJ, BARNES, TG
core
The Orbit and Mass of the Cepheid AW Per
The Astrophysical JournalThe Cepheid AW Per is a component in a multiple system with a long-period orbit. The radial velocities of Griffin cover the 38 yr orbit well. An extensive program of interferometry with the Center for High Angular Resolution Astronomy array is reported ...
Nancy Remage Evans +19 more
doaj +1 more source
Araucaria Project: Pulsating stars in binary systems and as distance indicators
EPJ Web of Conferences, 2017 Pulsating stars, like Cepheids or RR Lyrae stars, are ones of the most important distance indicators. They are also key objects for testing the predictions of stellar evolution and stellar pulsation theory.
Pilecki Bogumił +3 more
doaj +1 more source
THE DISTANCE TO THE LARGE MAGELLANIC CLOUD CLUSTER NGC 1866 FROM ITS CEPHEID MEMBERS
, 1994 We have derived distances to four Cepheid variables of similar periods (2.6-3.5 days) in the field of the young LMC cluster NGC 1866 using the visual surface brightness modification of the Baade-Wesselink method.
HILKER, M, RICHTLER, T, GIEREN, WP
core
The distance to the LMC cluster NGC 1866; clues from the cluster Cepheid population
, 2003 Recent investigations aimed at estimating the distance to the young LMC cluster NGC 1866 have made use of Red Clump stars in the surrounding LMC field, together with empirical and theoretical Main-Sequence fitting methods, and have found significantly ...
M. A. T. Groenewegen, M. Salaris
core +1 more source
The Araucaria Project. First Cepheid Distance to the Sculptor Group Galaxy NGC 7793 from Variables discovered in a Wide-Field Imaging Survey [PDF]
, 2010 We have detected, for the first time, Cepheid variables in the Sculptor Group spiral galaxy NGC 7793. From wide-field images obtained in the optical V and I bands on 56 nights in 2003-2005, we have discovered 17 long-period (24-62 days) Cepheids whose ...
Soszynski, Igor +9 more
core