Results 11 to 20 of about 2,640,441 (306)
Machine-learning computation of distance modulus for local galaxies [PDF]
Astronomy & Astrophysics, 2020 Context. Quickly growing computing facilities and an increasing number of extragalactic observations encourage the application of data-driven approaches to uncover hidden relations from astronomical data.
A. Elyiv +4 more
openalex +3 more sources
Determination of the LMC distance modulus from the Classical Cepheid Period-Luminosity relation [PDF]
arXiv, 1998 The distance modulus of the Large Magellanic Cloud (LMC) is the first step on the determination of the cosmic distance scale. In this paper it is obtained from a new calibration of the classical Cepheid Period-Luminosity (PL) relation. Our new calibration is obtained by applying the LM method -- a parametric method designed to obtain luminosity ...
X. Luri +5 more
arxiv +3 more sources
Nanomaterials, 2021 The accurate measurement of nanoscale mechanical characteristics is crucial in the emerging field of soft condensed matter for industrial applications. An atomic force microscope (AFM) can be used to conduct nanoscale evaluation of the Young’s modulus on
Seongoh Kim +4 more
doaj +2 more sources
Supernovae Light Curves: An Argument for a New Distance Modulus [PDF]
arXiv, 2004 Supernovae Ia (SNe Ia) light curves have been used to prove the universe is expanding. As standard candles, SNe Ia appear to indicate the rate of expansion has increased in the past and is now decreasing. This independent evaluation of SNe Ia light curves demonstrates a Malmquist Type II bias exists in the body of supernova data.
Jerry W. Jensen
arxiv +3 more sources
ApJ, 826, 21 (2016), 2016 Great investments of observing time have been dedicated to the study of nearby spiral galaxies with diverse goals ranging from understanding the star formation process to characterizing their dark matter distributions. Accurate distances are fundamental to interpreting observations of these galaxies, yet many of the best studied nearby galaxies have ...
K. McQuinn +4 more
arxiv +3 more sources
Eclipsing binaries in the Magellanic Clouds - II. Absolute dimensions and distance modulus for HV 5936 in the Large Magellanic Cloud* [PDF]
, 1993 Absolute dimensions and the distance modulus have been established for the early-type eclipsing binary HV 2226 in the SMC. Analyses of the new radial velocities reported here, and CCD light curves published by Jensen et al., yield component masses of 9.3
S. A. Bell +4 more
openalex +2 more sources
Nonlinear Models of the Bump Cepheid HV 905 and the Distance Modulus to the Large Magellanic Cloud [PDF]
, 1997 Nonlinear pulsation models have been used to simulate the light curve of the LMC bump Cepheid HV 905. In order to reproduce the light curve accurately, tight constraints on the input parameters M, L, and Teff are required.
P. R. Wood, Aidan S. Arnold, Kim Sebo
openalex +2 more sources
, 1989 Two single-lined spectroscopic binaries, MPS 926 and MPS 1223, have been identified among 30 giants surveyed in the open cluster M11. MPS 926 has a circular orbit with a period of 210 days; MPS 1223 has a highly eccentric orbit with a period of 660 days.
C. W. Lee +2 more
openalex +2 more sources
A new convergent point and distance modulus for the Hyades from radial velocities
, 1988 The dynamics of the Hyades open star cluster is investigated analytically on the basis of the photoelectric radial velocities reported by Griffin et al. (1988).
James E. Gunn +3 more
openalex +2 more sources
Globular clusters and the Virgo cluster distance modulus [PDF]
, 1977 D. A. Hanes
openalex +2 more sources