Photometric segregation of dwarf and giant FGK stars using the SVO Filter Profile Service and photometric tools

Abstract

This paper is focused on the segregation of FGK dwarf and giant stars through narrow-band photometric data using the Spanish Virtual Observatory (SVO) Filter Profile Service and associated photometric tools. We selected spectra from the MILES, STELIB, and ELODIE stellar libraries, and used SVO photometric tools to derive the synthetic photometry in 15 J-PAS narrow filters, which were especially selected to cover spectral features sensitive to gravity changes. Using machine-learning techniques as the Gaussian mixture model and the support vector machine, we defined several criteria based on J-PAS colours to discriminate between dwarf and giant stars. We selected five colour-colour diagrams that presented the most promising separation between both samples. Our results show an overall accuracy in the studied sample of $\sim$0.97 for FGK stars, although a dependence on the luminosity type and the stellar effective temperature was found. We also defined a colour-temperature relation for dwarf stars with effective temperatures between 4\,000 and 7\,000\,K, which allows one to estimate the stellar effective temperature from four J-PAS filters ($J0450$, $J0510$, $J0550$, and $J0620$). Additionally, we extended the study to M-type giant and dwarf stars, achieving a similar accuracy to that for FGK stars.

arXiv comment19 pages, 18 figures, published in A&A

References in corpus (37)

• Array Programming with NumPy
• The Sloan Digital Sky Survey: Technical Summary
• The Wide-field Infrared Survey Explorer (WISE): Mission Description and Initial On-orbit Performance
• The Gaia mission
• Gaia Data Release 3: Summary of the content and survey properties
• Correcting for the Effects of Interstellar Extinction
• The UKIRT Infrared Deep Sky Survey (UKIDSS)
• Intrinsic Colors, Temperatures, and Bolometric Corrections of Pre-Main Sequence Stars
• The SIMBAD astronomical database
• The USNO-B Catalog
• MILES: A Medium resolution INT Library of Empirical Spectra
• A 2MASS All-Sky View of the Sagittarius Dwarf Galaxy: I. Morphology of the Sagittarius Core and Tidal Arms
• The Radial Velocity Experiment (RAVE): first data release
• The Wavelength Dependence of Interstellar Extinction from 1.25 to 8.0 microns Using GLIMPSE Data
• Gaia Early Data Release 3: Photometric content and validation
• VOSA: Virtual Observatory SED Analyzer. An application to the Collinder 69 open cluster
• Spectroscopic parameters for 451 stars in the HARPS GTO planet search program. Stellar [Fe/H] and the frequency of exo-Neptunes
• STELIB: a library of stellar spectra at R~2000
• SkyMapper Southern Survey: First Data Release (DR1)
• Catalogue of [Fe/H] determinations for FGK stars : 2001 edition
• Medium-resolution Isaac Newton Telescope library of empirical spectra - II. The stellar atmospheric parameters
• Theoretical isochrones in several photometric systems II. The Sloan Digital Sky Survey ugriz system
• The Visible and Infrared Survey Telescope for Astronomy (VISTA): Design, Technical Overview and Performance
• The miniJPAS survey: a preview of the Universe in 56 colours
• J-PLUS: Morphological star/galaxy classification by PDF analysis
• Precise radial velocities of giant stars XVI. Planet occurrence rates from the combined analysis of the Lick, EXPRESS, and PPPS giant star surveys
• A-type stars in the Canada-France Imaging Survey I. The stellar halo of the Milky Way traced to large radius by blue horizontal branch stars
• The design and performance of the Gaia photometric system
• Mapping the Galactic disk with the LAMOST and Gaia Red clump sample. VI: An evidence for the long lived non-steady warp of non-gravitational scenarios
• A population synthesis fitting of the $Gaia$ resolved white dwarf binary population within 100 pc
• Milky Way tomography with the SkyMapper Southern Survey: I: Atmospheric parameters and distances of one million red giants
• Galactic model parameters for field giants separated from field dwarfs by their 2MASS and V apparent magnitudes
• A new procedure for defining a homogenous line-list for solar-type stars
• Separation of dwarf and giant stars with ROTSE-IIId
• Classification of field dwarfs and giants in RAVE and its use in stellar stream detection
• Infrared colours and inferred masses of metal-poor giant stars in the Kepler field
• The miniJPAS survey: stellar atmospheric parameters from 56 optical filters

Cited by in corpus (19)

• Inferring CSM Properties of Type II SNe Using a Magnitude-Limited ZTF Sample
• Application of Convolutional Neural Networks to time domain astrophysics. 2D image analysis of OGLE light curves
• Luminous, rapidly declining supernovae as stripped transitional objects in low metallicity environments: the case of SN 2022lxg
• Precise determination of circumstellar disk lifetimes: Disk evolution in a single star-forming region
• Detection of a white dwarf orbiting a Carbon-Oxygen depleted blue straggler in 47 Tucanae
• K2-399 b is not a planet. The Saturn that wandered through the Neptune desert is actually a hierarchical eclipsing binary
• Gaia white dwarfs with infrared excess I. The 100 pc catalogue
• Symbiotic binaries in the Gaia data. I. Known symbiotics in DR3 and FPR
• CaII and H$\alpha$ flaring M dwarfs detected with multi-filter photometry
• Survey of Surveys. II. Stellar parameters for 23 millions of stars
• Kilonova and progenitor properties of merger-driven gamma-ray bursts
• J-PAS: A Neural Network Approach to Single Stellar Population Characterization
• The Nearest, Brightest Debris Disk Host Stars: Updated Photosphere Models and Dust Properties for Stars with Saturated 2MASS Photometry
• Euclid: A blue galaxy population and a brightest cluster galaxy in the making in a $z\sim 1.74$ MaDCoWS2 galaxy cluster candidate
• What you see is not necessarily what you get: Interpreting near-infrared scattering phase functions of debris discs
• The dusty envelopes of asymptotic giant branch stars with ultraviolet excesses
• Follow-up of three exocomet-host candidates
• Computing Natural Magnitudes in the Photometric Systems of Astronomical Plates using Gaia DR3 SEDs
• The Population Synthesis Toolkit (PST) Python library