Calibration of Surface Brightness Fluctuations for Dwarf Galaxies in the Hyper Suprime-Cam $gi$ Filter System

Abstract

Surface brightness fluctuation (SBF) magnitudes are a powerful standard candle to measure distances to semi-resolved galaxies in the local universe, a majority of which are dwarf galaxies that have often bluer colors than bright early-type galaxies. We present an empirical $i-$band SBF calibration in a blue regime, $0.2\lesssim (g-i{)}_0\lesssim 0.8$ in the Hyper Suprime-Cam (HSC) magnitude system. We measure SBF magnitudes for 12 nearby dwarf galaxies of various morphological types with archival HSC imaging data, and use their tip of the red giant branch (TRGB) distances to derive fluctuation - color relations. In order to subtract contributions of fluctuations due to young stellar populations, we use five different $g-$band magnitude masking thresholds, $M_{g,\mathrm{thres}}=-3.5,-4.0,-4.5,-5.0,$ and $-5.5$ mag. We find that the rms scatter of the linear fit to the relation is the smallest (rms = 0.16 mag) in the case of $M_{g,\mathrm{thres}}=-4.0$ mag, $\overline{M_i}=(-2.65\pm 0.13)+(1.28\pm 0.24)\times (g-i{)}_0$. This scatter is much smaller than those in the previous studies (rms=0.26 mag), and is closer to the value for bright red galaxies (rms=0.12 mag). This calibration is consistent with predictions from metal-poor simple stellar population models.

arXiv commentAccepted for publication in ApJ, 13 pages, 6 figures

References in corpus (41)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• emcee: The MCMC Hammer
• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
• PARSEC: stellar tracks and isochrones with the PAdova and TRieste Stellar Evolution Code
• LSST: from Science Drivers to Reference Design and Anticipated Data Products
• Dark Matter Substructure in Galactic Halos
• Detailed Structural Decomposition of Galaxy Images
• Where are the missing galactic satellites?
• Small-Scale Challenges to the $\Lambda$CDM Paradigm
• A new generation of PARSEC-COLIBRI stellar isochrones including the TP-AGB phase
• Updated Nearby Galaxy Catalog
• The ACS Fornax Cluster Survey. V. Measurement and Recalibration of Surface Brightness Fluctuations and a Precise Value of the Fornax--Virgo Relative Distance
• Second Data Release of the Hyper Suprime-Cam Subaru Strategic Program
• The Hyper Suprime-Cam Software Pipeline
• A galaxy lacking dark matter
• Evolution of Thermally Pulsing Asymptotic Giant Branch Stars I. The COLIBRI Code
• Measuring Distances and Probing the Unresolved Stellar Populations of Galaxies Using Infrared Surface Brightness Fluctuations
• The Extragalactic Distance Database: Color-Magnitude Diagrams
• The Hubble Constant from Infrared Surface Brightness Fluctuation Distances
• SBF Distances to Dwarf Elliptical Galaxies in the Sculptor Group
• Surface Brightness Fluctuations in the Hubble Space Telescope ACS/WFC F814W Bandpass and an Update on Galaxy Distances
• The Next Generation Virgo Cluster Survey (NGVS). XVIII. Measurement and Calibration of Surface Brightness Fluctuation Distances for Bright Galaxies in Virgo (and Beyond)
• First results from the MADCASH Survey: A Faint Dwarf Galaxy Companion to the Low Mass Spiral Galaxy NGC 2403 at 3.2 Mpc
• The Extragalactic Distance Database: The Color-Magnitude Diagrams and Tip of the Red Giant Branch Distances Catalog
• Wide-Field Survey of Dwarf Satellite Systems Around 10 Hosts in the Local Volume
• Stellar Populations and Surface Brightness Fluctuations: New Observations and Models
• The Dragonfly Nearby Galaxies Survey. V. HST/ACS Observations of 23 Low Surface Brightness Objects in the Fields of NGC1052, NGC1084, M96, and NGC4258
• Measuring Distances Using Infrared Surface Brightness Fluctuations
• Testing the Surface Brightness Fluctuations Method for Dwarf Elliptical Galaxies in the Centaurus A Group
• Detection of Radial Surface Brightness Fluctuation and Color Gradients in elliptical galaxies with ACS
• Theoretical Predictions for Surface Brightness Fluctuations and Implications for Stellar Populations of Elliptical Galaxies
• The ACS Virgo Cluster Survey IV: Data Reduction Procedures for Surface Brightness Fluctuation Measurements with the Advanced Camera for Surveys
• Luminosity Functions and Host-to-Host Scatter of Dwarf Satellite Systems in the Local Volume
• The Carnegie-Chicago Hubble Program. IX. Calibration of the Tip of the Red Giant Branch Method in the Mega-Maser Host Galaxy, NGC4258 (M106)
• Using Surface Brightness Fluctuations to Study Nearby Satellite Galaxy Systems: Calibration and Methodology
• Measuring distances to low-luminosity galaxies using surface brightness fluctuations
• The LBT Satellites of Nearby Galaxies Survey (LBT-SONG): The Satellite Population of NGC 628
• Measuring Infrared Surface Brightness Fluctuation Distances with HST WFC3: Calibration and Advice
• Hubble Space Telescope Observations of Two Faint Dwarf Satellites of Nearby LMC Analogs from MADCASH
• Using Surface Brightness Fluctuations to Study Nearby Satellite Galaxy Systems: the Complete Satellite System of M101
• The abundance of dwarf galaxies around low-mass giants in the Local Volume

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