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We present validated and forward-modelled galaxy luminosity functions and photometric predictions for the Vera C. Rubin Observatory Legacy Survey of Space and Time using the ASTRID cosmological hydrodynamical simulation. Galaxy magnitudes…

A crucial aspect in addressing the challenge of measuring the core mass function, that is pivotal for comprehending the origin of the initial mass function, lies in constraining the temperatures of the cores. We aim to measure the…

[Abridged] We present a large, new set of stellar evolution models and isochrones for an alpha-enhanced metal distribution typical of Galactic halo and bulge stars; it represents a homogeneous extension of our stellar model library for a…

Astrophysics · Physics 2011-09-30 A. Pietrinferni , S. Cassisi , M. Salaris , F. Castelli

A new tool for the Evolutionary Synthesis of Stellar Populations (EPS) is presented, which is based on three independent matrices, giving respectively: 1) the fuel consumption during each evolutionary phase as a function of stellar mass; 2)…

Astrophysics · Physics 2009-10-30 Claudia Maraston

High-precision photometric standard stars play a key role in enabling accurate photometric calibration and advancing various fields of astronomy. However, due to limitations in calibration methods and the limited availability and underuse…

Instrumentation and Methods for Astrophysics · Physics 2026-01-12 Kai Xiao , Yang Huang , Haibo Yuan , Bowen Huang , Dongwei Fan , Timothy C. Beers , Zhirui Li , Henggeng Han , Qiqian Zhang , Tao Wang , Mingyang Ma , Yuanchang Wang , Shuai Xu , Lin Yang , Jifeng Liu

We combine photometric data from GALEX GR6+7 AIS and Gaia EDR3 with stellar parameters from the SAGA and PASTEL catalogs to construct high-quality training samples for dwarfs ($\rm 0.4< BP-RP<1.6$) and giants ($\rm 0.6< BP-RP <1.6$). We…

Solar and Stellar Astrophysics · Physics 2024-01-12 Xue Lu , Haibo Yuan , Shuai Xu , Ruoyi Zhang , Kai Xiao , Yang Huang , Timothy C. Beers , Jihye Hong

We present a database of 908 spectra of 709 stars obtained with the ELODIE spectrograph at Observatoire de Haute-Provence. 52 orders of the echelle spectra have been carefully fitted together to provide continuous, high-resolution spectra…

Astrophysics · Physics 2009-11-06 Philippe Prugniel , Caroline Soubiran

Methods of obtaining stellar luminosities (L) have been revised and a new concept, standard stellar luminosity, has been defined. Among the three methods (direct method from radii and effective temperatures, method using a mass-luminosity…

Solar and Stellar Astrophysics · Physics 2021-09-15 Z. Eker , F. Soydugan , S. Bilir , V. Bakis

We study the photometric properties of stars in the data archive of the Sloan Digital Sky Survey (SDSS), the prime aim being to understand the photometric calibration over the entire data set. It is confirmed that the photometric…

Solar and Stellar Astrophysics · Physics 2015-05-19 Masataka Fukugita , Naoki Yasuda , Mamoru Doi , James E. Gunn , Donald G. York

We present an analysis of the potential follow-up polarimetry microlensing observation to study the stellar atmospheres of the distant stars. First, we produce synthetic microlensing events using the Galactic model, stellar population, and…

Solar and Stellar Astrophysics · Physics 2021-01-20 Elahe Khalouei , Sedighe Sajadian , Sohrab Rahvar

Deriving atmospheric parameters of a large sample of stars is of vital importance to understand the formation and evolution of the Milky Way. Photometric surveys, especially those with near-ultraviolet filters, can offer accurate…

Solar and Stellar Astrophysics · Physics 2024-01-15 Ruifeng Shi , Yang Huang , Xinyi Li , Huawei Zhang

We describe a standard star catalog constructed using multiple SDSS photometric observations (at least four per band, with a median of ten) in the $ugriz$ system. The catalog includes 1.01 million non-variable unresolved objects from the…

Astrophysics · Physics 2008-11-26 Zeljko Ivezic , J. Allyn Smith , Gajus Miknaitis , Huan Lin , Douglas Tucker

Modern spectroscopic surveys combined with Gaia distances are enabling reliable estimates of fundamental parameters for hundreds of Galactic O-type stars and the full range of spectral types and luminosity classes. Here we provide updated,…

Solar and Stellar Astrophysics · Physics 2025-11-25 G. Holgado , S. Simón-Díaz , A. Herrero

We have adapted the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) Science Pipelines to process data from the Gravitational-Wave Optical Transient Observer (GOTO) prototype. In this paper, we describe how we used the Rubin…

We present an extended theoretical library of over 800 synthetic stellar spectra, covering energy distribution in the optical range (lambda = 3500-7000 angstrom), at inverse resolution R=500000. The library, based on the ATLAS9 model…

Astrophysics · Physics 2007-05-23 E. Bertone , A. Buzzoni , L. H. Rodriguez-Merino , M. Chavez

The ACS Survey of Galactic Globular Clusters, an HST Treasury Project, will deliver high quality, homogeneous photometry of 65 globular clusters. This paper introduces a new collection of stellar evolution tracks and isochrones suitable for…

Astrophysics · Physics 2010-11-05 A. Dotter , B. Chaboyer , D. Jevremovic , E. Baron , J. W. Ferguson , A. Sarajedini , J. Anderson

A new all-sky catalogue of all available uvbybeta measurements from the literature was generated. The uvbybeta photometric system is widely used for the study of various Galactic and extragalactic objects. It measures the colour due to…

Solar and Stellar Astrophysics · Physics 2015-07-22 Ernst Paunzen

Until a few years ago, the amplitude variation in the photometric data had been limitedly explored mainly because of time resolution and photometric sensitivity limitations. This investigation is now possible thanks to the Kepler and CoRoT…

Solar and Stellar Astrophysics · Physics 2015-11-11 C. E. Ferreira Lopes , I. C. Leão , D. B. de Freitas , B. L. Canto Martins , M. Catelan , J. R. De Medeiros

We derive bolometric correction functions for oscillation mode amplitudes observed by the different cameras of the ESA PLATO mission. Such corrections between bolometric (full light) and mission instrument-specific amplitudes enable…

Solar and Stellar Astrophysics · Physics 2026-03-16 Mikkel N. Lund , Jérôme Ballot , William J. Chaplin
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