Some Photometric Characteristics of Population II Orbital Visual Binary Stars
Open Astronomy, 2003 A MV ,B−V diagram for metal-deficient, kinematically selected thick disk and halo visual binary stars with known orbits is presented. The magnitude differences Δm between the components are analyzed.
Bartkevičius A., Gudas A.
doaj +1 more source
Eötvös Bounds on Couplings of Fundamental Parameters to Gravity [PDF]
Physical Review Letters, 2008 To be published (Phys.Rev.Lett.), minor changes and corrections, equivalent to journal ...
T. Dent
openalex +5 more sources
Cross Catalogue Matching with Virtual Observatory and Parameterization of Stars
Open Astronomy, 2012 Virtual Observatory facilities allow users to make a fast and correct cross-matching of objects from various surveys. They yield multi-color photometry data (color indices) on registered objects and make it possible to determine stellar parameters.
Malkov O. +6 more
doaj +1 more source
Fundamental Parameters of CP Stars [PDF]
Highlights of Astronomy, 1998 The quest for accurate fundamental parameters (M, R, Teff log g, v sin i) of CP stars has been a lasting problem ever since the nature and origin of these stars has been discussed. The main reason for the difficulty lies in the anomalous colours of these stars, linked with their abundance anomalies which are responsible for complicated blocking and ...
openaire +2 more sources
CHEMICAL COMPOSITION OF 4 STARS IN THE HYADES
Odessa Astronomical Publications, 2017 The parameters of atmospheres (Теf, 1оg g, [fе/Н], Vt) of 4 stars of Hyades are certain. Spectrums are got on a spectrograph ELODIE on a 1.93m telescope in the observatory of OHP (France). Overabundances are got 0.1 dех for all investigated elements.
E. P. Shereta
doaj +1 more source
CMB ANISOTROPIES, COSMOLOGICAL PARAMETERS AND FUNDAMENTAL PHYSICS: CURRENT STATUS & PERSPECTIVES
, 2004 I describe briefly the Cosmic Microwave Background (hereafter CMB) physics which explains why high accuracy observations of its spatial structure are a unique observational tool both for the determination of the global cosmological parameters and to ...
F. R. Bouchet
openalex +4 more sources
Measuring Fundamental Galactic Parameters with Stellar Tidal Streams and SIM PlanetQuest [PDF]
, 2005 Extended halo tidal streams from disrupting Milky Way satellites offer new opportunities for gauging fundamental Galactic parameters without challenging observations of the Galactic center.
Allyson A. Polak +7 more
core +1 more source
The Solar Twin Planet Search. I. Fundamental parameters of the stellar sample [PDF]
, 2014 Context. We are carrying out a search for planets around a sample of solar twin stars using the HARPS spectrograph. The goal of this project is to exploit the advantage offered by solar twins to obtain chemical abundances of unmatched precision.
I. Ramírez +13 more
semanticscholar +1 more source
Determining fundamental parameters of QCD on the lattice [PDF]
Nuclear Physics B - Proceedings Supplements, 2006 We summarize the status of determinations of fundamental parameters of QCD by the ALPHA Collaboration.
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BANYAN. IV. FUNDAMENTAL PARAMETERS OF LOW-MASS STAR CANDIDATES IN NEARBY YOUNG STELLAR KINEMATIC GROUPS—ISOCHRONAL AGE DETERMINATION USING MAGNETIC EVOLUTIONARY MODELS [PDF]
, 2014 Based on high-resolution optical spectra obtained with ESPaDOnS at Canada–France–Hawaii Telescope, we determine fundamental parameters (Teff, R, Lbol, log g, and metallicity) for 59 candidate members of nearby young kinematic groups.
L. Malo +7 more
semanticscholar +1 more source