Multiwavelength Absolute Magnitudes and Colours of Red Clump Stars in {\it Gaia} Era

Abstract

This study presents the multi-wavelength investigation of the absolute magnitudes and colours of the red clump (RC) stars selected from APOGEE and GALAH DR2 combined catalogue which is complemented with {\it Gaia} DR2 astrometric data and multi-wavelength photometric data of {\it GALEX} GR6/7, SDSS DR7, {\it Gaia} DR2, 2MASS and {\it WISE} sky surveys. The analyses are centred on the different distance estimation methods using {\it Gaia} trigonometric parallaxes, (1/$\varpi$) and Bayes statistics, and chemically defined Galactic disc populations on [$\alpha$/Fe]$\times$[Fe/H] plane. Such investigation questions the long studied problem of the population effects on RC luminosity. Using two different distance estimation approach, (i) chemical thin and chemical thick disc RC stars are shown to have different absolute magnitudes, while colours remain the same in all photometric bands. Absolute magnitudes vary between -0.12 and +0.13 mag for the 1/$\varpi$ with the change of the Galactic population. This variation in absolute magnitudes is found to be larger for the other method. (ii) The Besan\c con population synthesis model of Galaxy for 2MASS photometry, in which the absolute magnitude difference between chemical populations were found between -0.35 and -0.40 mag from thin disc to thick disc. When results compared with each other, differences of absolute magnitudes are about three times larger in the model than observations. We confirm that the RC absolute magnitudes depend on $\alpha$-element abundances of Galactic populations.

arXiv commentAccepted by APJ

References in corpus (73)

• Astropy: A Community Python Package for Astronomy
• The NumPy array: a structure for efficient numerical computation
• Gaia Data Release 2. Summary of the contents and survey properties
• The Wide-field Infrared Survey Explorer (WISE): Mission Description and Initial On-orbit Performance
• The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
• The Gaia mission
• The Seventh Data Release of the Sloan Digital Sky Survey
• Validation of the new Hipparcos reduction
• The Galaxy Evolution Explorer: A Space Ultraviolet Survey Mission
• The Apache Point Observatory Galactic Evolution Experiment (APOGEE)
• Estimating distances from parallaxes IV: Distances to 1.33 billion stars in Gaia Data Release 2
• The Second Data Release of the Sloan Digital Sky Survey
• The New Galaxy: Signatures of its Formation
• The Chemical Evolution of the Galaxy: the two-infall model
• Elemental Abundance Survey of The Galactic Thick Disk
• The GALAH Survey: Scientific Motivation
• Modelling the Galactic Interstellar Extinction Distribution in Three Dimensions
• Estimating distances from parallaxes
• The Optical to Mid-Infrared Extinction Law Based on the APOGEE, Gaia DR2, Pan-STARRS1, SDSS, APASS, 2MASS and WISE Surveys
• The spatial structure of mono-abundance sub-populations of the Milky Way disk
• Revised Catalog of GALEX Ultraviolet Sources. I. The All-sky Survey: GUVcat_AIS
• The Galactic Thick Disk Stellar Abundances
• The Cannon: A data-driven approach to stellar label determination
• The GALAH Survey: Second Data Release
• Empirical extinction coefficients for the GALEX, SDSS, 2MASS and WISE passbands
• Population effects on the Red Giant Clump absolute magnitude, and distance determinations to nearby galaxies
• APOGEE Data Releases 13 and 14: Data and Analysis
• Red giant masses and ages derived from carbon and nitrogen abundances
• Galactocentric Distance With the OGLE and Hipparcos Red Clump Stars
• Stellar populations in the Milky Way bulge region : Towards solving the Galactic bulge and bar shapes using 2MASS data
• Radial mixing and the transition between the thick and thin Galactic discs
• Simulation of Stellar Objects in SDSS Color Space
• The APOGEE red-clump catalog: Precise distances, velocities, and high-resolution elemental abundances over a large area of the Milky Way's disk
• K-Band Calibration of the Red Clump Luminosity
• Population effects on the red giant clump absolute magnitude: The K-band
• The Tycho-Gaia astrometric solution. How to get 2.5 million parallaxes with less than one year of Gaia data
• APOGEE: The Apache Point Observatory Galactic Evolution Experiment
• Tracing the Galactic thick disk to Solar metallicities
• WIYN Open Cluster Study. X. The K-Band Magnitude of the Red Clump as a Distance Indicator
• Tracing the long bar with red-clump giants
• Fine structure of the red giant clump from HIPPARCOS data, and distance determinations based on its mean magnitude
• Galactic Globular and Open Clusters in the Sloan Digital Sky Survey. II. Test of Theoretical Stellar Isochrones
• The red clump absolute magnitude based on revised Hipparcos parallaxes
• A new LMC K-band distance from precision measurements of nearby red clump stars
• Empirical photometric calibration of the Gaia Red Clump: colours, effective temperature and absolute magnitude
• The Optical Gravitational Lensing Experiment. Red Clump Stars as a Distance Indicator
• Red clump stars and Gaia: Calibration of the standard candle using a hierarchical probabilistic model
• Revisiting long-standing puzzles of the Milky Way: the Sun and its vicinity as typical outer disk chemical evolution
• Revealing the formation of stellar-mass black hole binaries: The need for deci-Hertz gravitational wave observatories
• Two estimates of the distance to the Galactic centre
• Estimation of galactic model parameters in high latitudes with SDSS
• Local stellar kinematics from RAVE data: II. Radial Metallicity Gradient
• Local stellar kinematics from RAVE data: III. Radial and Vertical Metallicity Gradients based on Red Clump Stars
• Zeroing the Stellar Isochrone Scale: The Red Giant Clump Luminosity at Intermediate Metallicity
• Galactic longitude dependent Galactic model parameters
• Through Thick and Thin: Kinematic and Chemical Components in the Solar Neighbourhood
• Ruprecht 147 DANCe I. Members, empirical isochrone, luminosity and mass distributions
• Estimation of Galactic model parameters in high latitudes with 2MASS
• Vertical and radial metallicity gradients in high latitude galactic fields with SDSS
• The Lutz-Kelker bias in trigonometric parallaxes
• Local Stellar Kinematics from RAVE data - VII. Metallicity Gradients from Red Clump Stars
• First identification and absolute magnitudes of the red clump stars in the Solar neighbourhood for WISE
• Local Stellar Kinematics from RAVE data - VI. Metallicity Gradients Based on the F-G Main-sequence Stars
• A New Absolute Magnitude Calibration for Red Clump Stars
• Metallicity Calibration and Photometric Parallax Estimation: I. UBV photometry
• Local Stellar Kinematics from RAVE data -- VIII. Effects of the Galactic Disc Perturbations on Stellar Orbits of Red Clump Stars
• Luminosity-Colour Relations for Red Clump Stars
• An Ultraviolet-Optical Color-Metallicity relation for Red Clump Stars using GALEX and Gaia
• Distribution of red clump stars does not support the X-shaped Galactic bulge
• Absolute Magnitude Calibration for Red Clump Stars
• Analysis of the disc components of our Galaxy via kinematic and spectroscopic procedures
• Metallicity and absolute magnitude calibrations for F-G type main-sequence stars in the Gaia era

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• The GALAH survey: A census of lithium-rich giant stars
• GALACTICNUCLEUS: A high-angular-resolution $JH{K}_s$ imaging survey of the Galactic centre. IV. Extinction maps and de-reddened photometry
• On the effects of the Initial Mass Function on Galactic chemical enrichment
• On the Origin of Metal-poor Stars in the Solar Neighborhood
• 3D Parameter Maps of Red Clump Stars in the Milky Way -- Absolute Magnitudes and Intrinsic Colors
• The Outer spiral arm of the Milky Way using Red Clump stars
• The distances to molecular clouds in the fourth Galactic quadrant
• Mapping the Milky Way with Gaia Bp/Rp spectra-IV: the broken and asymmetric density profile of the stellar disk traced by a large sample of red clumps
• Constraining Lens Masses in Moderately to Highly Magnified Microlensing Events from Gaia
• Blanco DECam Bulge Survey (BDBS) IV: Metallicity Distributions and Bulge Structure from 2.6 Million Red Clump Stars