Results 21 to 30 of about 11,568,785 (350)

An empirical calibration to estimate cool dwarf fundamental parameters from H-band spectra [PDF]

, 2015
Interferometric radius measurements provide a direct probe of the fundamental parameters of M dwarfs, but is within reach for only a limited sample of nearby, bright stars. We use interferometrically-measured radii, bolometric luminosities, and effective
Charbonneau, David, Irwin, Jonathan, Mann, Andrew W., Newton, Elisabeth R.   +3 more
core   +5 more sources

Fundamental parameters and infrared excesses of Hipparcos stars [PDF]

, 2012
We derive the fundamental parameters (temperature and luminosity) of 107 619 Hipparcos stars and place these stars on a true Hertzsprung-Russell diagram.
A. A. Zijlstra, Aihara, Allard, Beichmann, Bergeat, Bertelli, Boyer, Boyer, Chen, Cho, Dotter, Egan, ESA, Evans, Gezari, Gray, Gray, Groenewegen, Gustafsson, Gustafsson, Höfner, I. McDonald, Ita, Ita, Ita, Kastner, Knapp, Kraemer, Kwan, Kwok, Ladjal, Libert, Luck, Lutz, M. L. Boyer, Marigo, McDonald, McDonald, McDonald, McDonald, McDonald, McDonald, McDonald, Meyer, Miville-Deschênes, Momany, Norris, Oudmaijer, Perryman, Price, Price, Samus, Skrutskie, Sloan, Sloan, Sloan, Sloan, Tatebe, Ueta, Ueta, Valdes, Van Eck, van Leeuwen, Wallace, Wallace, Wareing, Woods, Wright, Wu   +68 more
core   +2 more sources

Using limb darkening to measure fundamental parameters of stars [PDF]

, 2012
Context. Limb darkening is an important tool for understanding stellar atmospheres, but most observations measuring limb darkening assume various parameterizations that yield no significant information about the structure of stellar atmospheres. Aims. We
An, Claret, Claret, Fields, H. R. Neilson, Haubois, Heyrovský, Heyrovský, J. B. Lester, Knutson, Lee, Lester, Mérand, Neilson, Neilson, Ohnaka, Popper, Wade, Wittkowski, Wittkowski, Wittkowski, Zub   +21 more
core   +2 more sources

The CAMELS Multifield Data Set: Learning the Universe’s Fundamental Parameters with Artificial Intelligence [PDF]

Astrophysical Journal Supplement Series, 2021
We present the Cosmology and Astrophysics with Machine Learning Simulations (CAMELS) Multifield Data set (CMD), a collection of hundreds of thousands of 2D maps and 3D grids containing many different properties of cosmic gas, dark matter, and stars from ...
F. Villaescusa-Navarro, S. Genel, D. Anglés-Alcázar, L. Thiele, R. Davé, D. Narayanan, A. Nicola, Yin Li, Pablo Villanueva-Domingo, Benjamin Dan Wandelt, D. Spergel, R. Somerville, J. Z. Matilla, F. G. Mohammad, Sultan Hassan, Helen Shao, D. Wadekar, Michael Eickenberg, Kaze W. K. Wong, Gabriella Contardo, Yongseok Jo, E. Moser, E. Lau, Luis Fernando Machado Poletti Valle, L. A. Perez, D. Nagai, N. Battaglia, M. Vogelsberger   +27 more
semanticscholar   +1 more source

An Implementation of the Fundamental Parameters Approach for Analysis of X-ray Powder Diffraction Line Profiles. [PDF]

J Res Natl Inst Stand Technol, 2015
This work presents an open implementation of the Fundamental Parameters Approach (FPA) models for analysis of X-ray powder diffraction line profiles. The original literature describing these models was examined and code was developed to allow for their ...
Mendenhall MH, Mullen K, Cline JP.
europepmc   +2 more sources

Compilation of fundamental parameters of earth

Solid Earth Sciences
Earth is a unique planet in the universe characterized by a stable crust and a dynamic internal environment, fostering intelligent life. Studying Earth not only aids in understanding our habitat but also helps uncover mysteries of other celestial bodies.
Sirui Liu, Jianghong Deng
doaj   +2 more sources

Mitochondrial Morphology and Fundamental Parameters of the Mitochondrial Respiratory Chain Are Altered in Caenorhabditis elegans Strains Deficient in Mitochondrial Dynamics and Homeostasis Processes. [PDF]

PLoS One, 2015
Mitochondrial dysfunction has been linked to myriad human diseases and toxicant exposures, highlighting the need for assays capable of rapidly assessing mitochondrial health in vivo.
Luz AL, Rooney JP, Kubik LL, Gonzalez CP, Song DH, Meyer JN.   +5 more
europepmc   +2 more sources

Accurate fundamental parameters for lower main-sequence stars [PDF]

, 2006
We derive an empirical effective temperature and bolometric luminosity calibration for G and K dwarfs, by applying our own implementation of the InfraRed Flux Method to multi-band photometry.
L. Casagrande, L. Portinari, Chris Flynn
openalex   +3 more sources

Fundamental parameters for 45 open clusters with Gaia DR2, an improved extinction correction and a metallicity gradient prior [PDF]

Monthly notices of the Royal Astronomical Society, 2020
Reliable fundamental parameters of open clusters (OCs) such as distance, age, and extinction are key to our understanding of Galactic structure and stellar evolution.
H. Monteiro, W. Dias, A. Moitinho, T. Cantat-Gaudin, J. L'epine, G., Carraro, E. Paunzen   +7 more
semanticscholar   +1 more source

New Limits on Fundamental Weak-Interaction Parameters from SuperallowedβDecay [PDF]

, 2005
A new critical survey of all world data on superallowed beta decays provides demanding tests of, and tight constraints on, the weak interaction. In confirmation of the conserved vector current (CVC) hypothesis, the vector coupling coupling constant is ...
J. C. Hardy, I.S. Towner
openalex   +6 more sources