VOSA file format. VOSA is mainly designed to work with several objects at the same time so that the same or equivalent operations are performed on all the objects. In order to do this, we …

There are two main ways to start working with VOSA: Uploading a VOSA-format input file with your data (or selecting a previously uploaded one). VOSA is mainly designed to work with …

VOSA gathers from VO services not only the photometric information but also different metadata of interest (Object name, observing date and information on quality).

Generate a Hertzsprung-Russel diagram using the estimated parameters, obtaining isochrones and evolutionary tracks from the VO (only stars). Save results as VOTable, ASCII, png, eps...

Example of the table showing the gathered photometry for TYC_9437 to illustrate how VOSA uses the information on quality to automatically identify bad photometric points and remove them …

VOSA offers several options to analyze the Spectral Energy Distributions and estimate physical properties for the studied objects. First, observed photometry is compared to synthetic …

VOSA (VO Sed Analyzer)a is a public web-tool developed by the Spanish Virtual Ob-servatoryb and designed to help users to (1) build Spectral Energy Distributions (SEDs) combining private …

C. Rodrigo Blanco VOSA Fit observed data with theoretical models. Query VO-compliant theoretical models (spectra) and calculate their synthetic photometry. Determine which model …

VOSA detects infrared excesses by calculating iteratively the parameter from Lada et al. (2006). This method provides us with excess fractions of 32% for candidates with stellar masses (from …

Jul 5, 2022 · VOSA computes two stellar radii from two different equations: $$ M_d = (R_1 /D)$$ $$ L_{\rm bol} = 4\pi R_2^2 \ \sigma \ T_{\rm eff}^4$$ where M d is the proportionality factor …