Results 1 to 10 of about 11,049 (214)
Insights into the Cepheid distance scale [PDF]
The Astrophysical Journal, 2010 We present an investigation of Cepheid distances using theory and observations. Cepheid models indicate that the slope of the Period-Luminosity (P-L) relation covering the entire period range (0 ...
Benedict +72 more
core +3 more sources
Toward a renewed Galactic Cepheid distance scale from Gaia and optical interferometry [PDF]
EPJ Web of Conferences, 2017 Through an innovative combination of multiple observing techniques and modeling, we are assembling a comprehensive understanding of the pulsation and close environment of Cepheids.
Kervella Pierre +11 more
doaj +2 more sources
How rotation affects masses and ages of classical Cepheids
EPJ Web of Conferences, 2017 Classical Cepheid variable stars are both sensitive astrophysical laboratories and accurate cosmic distance tracers. We have recently investigated how the evolutionary effects of rotation impact the properties of these important stars and here provide an
Anderson Richard I. +4 more
doaj +2 more sources
The Cepheid-Based Distance Scale
Open Astronomy, 1999 Di Benedetto G. P., Lattanzi M. G.
doaj +2 more sources
Cepheid Radii and Distances [PDF]
International Astronomical Union Colloquium, 1995 Laney & Stobie (1995) (LS95) have determined Baade-Wesselink radii for 49 galactic Cepheids using BVRI and JHK photometry. Four of the possible magnitude-colour combinations were studied in detail — namely, (V,B–V), (V,V–Ic), (K,V–K) and (K,J–K). In that paper and in the present note we have used the maximum likelihood method of Balona (1977) as ...
C. D. Laney, R. S. Stobie
openaire +1 more source
THE EXTRAGALACTIC DISTANCE SCALE WITHOUT CEPHEIDS. III. [PDF]
The Astrophysical Journal, 2008 Distances of galaxies in the Hubble Space Telescope Key Project are based on the Cepheid period-luminosity relation. An alternative basis is the tip of the red giant branch. Using archival HST data, we calibrate the infrared Tully-Fisher relation using 14 galaxies with tip of the red giant branch measurements.
Mould, Jeremy, Sakai, Shoko
openaire +5 more sources
The Astrophysical Journal Letters, 2023 Milky Way Cepheid variables with accurate Hubble Space Telescope photometry have been established as standards for primary calibration of the cosmic distance ladder to achieve a percent-level determination of the Hubble constant ( H _0 ).
Anupam Bhardwaj +12 more
doaj +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 ...
Alejandro Garcia-Varela +41 more
core +3 more sources
Cepheid Distances to Nearby Galaxies [PDF]
International Astronomical Union Colloquium, 1995 AbstractWe have determined new Cepheid distances on a homogeneous system to nine nearby galaxies with Cepheid observations in the V bandpass, using the extensive calibration of the galactic Cepheid PL(V) relation of Gieren, Barnes & Moffett (1993).
Wolfgang P. Gieren +4 more
openaire +1 more source
MOND rotation curves for spiral galaxies with Cepheid-based distances [PDF]
, 2002 Rotation curves for four spiral galaxies with recently determined Cepheid-based distances are reconsidered in terms of modified Newtonian dynamics (MOND). For two of the objects, NGC 2403 and NGC 7331, the rotation curves predicted by MOND are compatible
Bottema, Roelof +3 more
core +2 more sources