Results 1 to 10 of about 547,112 (246)
Environmental dependence of stellar velocity dispersion in the Main galaxy sample of SDSS DR10
Open Physics, 2014 The aim of this work is to examine the environmental dependence of stellar velocity dispersion in local galaxies. In studies that likely suffer from the radial selection effect, one has a preference for the use of volumelimited samples.
Deng Xin-Fa
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Determination of Homogenized Effective Temperatures from Stellar Catalogs
Open Astronomy, 2011 Some selected catalogs of the effective temperatures (Teff) for F, G and K stars are analyzed. By an improved technique we estimate the external errors of these catalogs from data intercomparisons.
Malyuto V., Shvelidze T.
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Estimation of Physical Stellar Parameters from Spectral Models Using Deep Learning Techniques
MathematicsThis article presents a new algorithm that uses techniques from the field of artificial intelligence to automatically estimate the physical parameters of massive stars from a grid of stellar spectral models.
Esteban Olivares +6 more
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Near Continuous Photometry with the Whole Earth Telescope (WET)
Open Astronomy, 2003 The Whole Earth Telescope (WET) saw first light in 1988. It was invented by scientists from the Astronomy Department, University of Texas at Austin.
Solheim J. E.
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S-PLUS: LEnticular Galaxies in Stripe 82 (LEGS82) [PDF]
Anais da Academia Brasileira de CiênciasThis work is a Brazilian-Indian collaboration. It aims at investigating the structural properties of Lenticular galaxies in the Stripe 82 using a combination of S-PLUS (Southern Photometric Local Universe Survey) and SDSS data.
ARIANNA CORTESI +7 more
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Fundamental parameters line profile fitting in laboratory diffractometers
Journal of Research of the National Institute of Standards and Technology, 2004 The fundamental parameters approach to line profile fitting uses physically based models to generate the line profile shapes. Fundamental parameters profile fitting (FPPF) has been used to synthesize and fit data from both parallel beam and divergent beam diffractometers. The refined parameters are determined by the diffractometer configuration.
Cheary, R. W. +2 more
openaire +2 more sources
Spectral Analysis Via the Virtual Observatory: The Service Theossa
Open Astronomy, 2012 In the framework of the Virtual Observatory, the newly developed service TheoSSA provides access to theoretical stellar spectral energy distributions. In a pilot phase, this service is based on the well-established Tübingen NLTE Model-Atmosphere Package ...
Ringat E., Rauch T., Werner K.
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Wide Field Multicolor CCD Photometry of the Open Cluster NGC752
Open Astronomy, 2010 The results of CCD photometry in the seven-color Vilnius system of 3058 stars down to V ~ 18.0 mag in a 1.5 square degree field around the cluster NGC 752 are presented.
Zdanavičius J. +2 more
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Open Astronomy, 2003 Seven-color photometry in the Vilnius system has been obtained for 420 stars down to V = 16 mag in the area containing the overlapping open clusters NGC 1750 and NGC 1758 in Taurus.
Straižys V. +8 more
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Implications of the Intriguing Constant Inner Mass Surface Density Observed in Dark Matter Halos
GalaxiesIt has long been known that the observed mass surface density of cored dark matter (DM) halos is approximately constant, independently of the galaxy mass (i.e., ρcrc≃constant, with ρc and rc being the central volume density and the radius of the core ...
Jorge Sánchez Almeida
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