The Advanced Camera for Surveys Virgo Cluster Survey. V. Surface Brightness Fluctuation Calibration for Giant and Dwarf Early-Type Galaxies

As part of the Advanced Camera for Surveys (ACS) Virgo Cluster Survey, we have measured surface brightness fluctuations (SBFs) in a sample of 100 early-type Virgo galaxies. Distances derived from these measurements are needed to explore the three-dimensional structure of the Virgo Cluster, study the intrinsic parameters of globular clusters associated with the program galaxies, and compare with the galaxy distances derived from globular cluster luminosity functions. Our SBF measurements have been performed in the F850LP bandpass of the Wide Field Channel of the ACS on the Hubble Space Telescope. These are the first measurements of this kind, and we present the first SBF calibration for this bandpass. The measured fluctuations depend on galaxy stellar population variations, which we quantify by galaxy color (g475 - z850)0, where g475 and z850 are the galaxy magnitudes in the F475W and F850LP ACS filters, respectively. We derive the calibration for the absolute SBF magnitude 850 = -2.06 ± 0.04 + (2.0 ± 0.2)[(g475 - z850)0 - 1.3] in the range 1.3 < (g475 - z850)0 ≤ 1.6, and 850 = -2.06 ± 0.04 + (0.9 ± 0.2)[(g475 - z850)0 - 1.3] in the range 1.0 ≤ (g475 - z850)0 ≤ 1.3. The quoted zero-point uncertainty here includes all sources of internal error; there is an additional systematic uncertainty of ~0.15 mag, due to the uncertainty in the distance scale calibration. Physically, the two different color regimes correspond to different galaxy types: giant ellipticals and S0s at the red end, and early-type dwarfs at the blue end. For the first time in SBF studies, we are able to provide a firm empirical calibration of SBF in early-type dwarf galaxies. Our results agree with stellar population model predictions from Bruzual & Charlot in the range 1.3 < (g475 - z850)0 ≤ 1.6, while our empirical slope is somewhat steeper than the theoretical prediction in the range 0.9 ≤ (g475 - z850)0 ≤ 1.3.

[1]  J. Tonry,et al.  The ACS Virgo Cluster Survey. IV. Data Reduction Procedures for Surface Brightness Fluctuation Measurements with the Advanced Camera for Surveys , 2005, astro-ph/0501325.

[2]  J. Tonry,et al.  The ACS Virgo Cluster Survey. II. Data Reduction Procedures , 2004, astro-ph/0406433.

[3]  J. Tonry,et al.  The ACS Virgo Cluster Survey. I. Introduction to the Survey , 2004, astro-ph/0404138.

[4]  H. Jerjen,et al.  Distances, Metallicities, and Ages of Dwarf Elliptical Galaxies in the Virgo Cluster from Surface Brightness Fluctuations , 2003, astro-ph/0310779.

[5]  R. Bouwens,et al.  Faint Galaxies in Deep Advanced Camera for Surveys Observations , 2004 .

[6]  P. Côté,et al.  Hubble Space Telescope Observations of Novae in M49 , 2003, astro-ph/0310006.

[7]  G. Bruzual,et al.  Stellar population synthesis at the resolution of 2003 , 2003, astro-ph/0309134.

[8]  L. Infante,et al.  Potential of the Surface Brightness Fluctuations method to measure distances to dwarf elliptical galaxies in nearby clusters , 2003, astro-ph/0303577.

[9]  M. Scodeggio,et al.  H0 measurement from VLT deep I–band surface brightness fluctuations in NGC 564 and NGC 7619 , 2002, astro-ph/0212262.

[10]  Rodger I. Thompson,et al.  Measuring Distances and Probing the Unresolved Stellar Populations of Galaxies Using Infrared Surface Brightness Fluctuations , 2002, astro-ph/0210129.

[11]  L. Takalo,et al.  Surface brightness fluctuation distances for dwarf elliptical galaxies in the Fornax cluster , 2001, astro-ph/0110685.

[12]  V. Narayanan,et al.  Early-type galaxy distances from the Fundamental Plane and surface brightness fluctuations , 2001, astro-ph/0111183.

[13]  Michael C. Liu,et al.  Surface Brightness Fluctuations of Fornax Cluster Galaxies: Calibration of Infrared Surface Brightness Fluctuations and Evidence for Recent Star Formation , 2001, astro-ph/0107357.

[14]  L. Takalo,et al.  Surface brightness fluctuation distances for nearby dwarf elliptical galaxies , 2001, astro-ph/0110685.

[15]  Michael C. Liu,et al.  Infrared Surface Brightness Fluctuations of the Coma Elliptical Galaxy NGC 4874 and the Value of the Hubble Constant , 2001, astro-ph/0107471.

[16]  A. Riess,et al.  Reconciliation of the Surface Brightness Fluctuation and Type Ia Supernova Distance Scales , 2001, astro-ph/0105366.

[17]  P. Quinn,et al.  Anomalous surface brightness fluctuations in NGC 4489 , 2000, astro-ph/0011276.

[18]  Gerard A. Luppino,et al.  The SBF Survey of Galaxy Distances. IV. SBF Magnitudes, Colors, and Distances , 2000, astro-ph/0011223.

[19]  J. Blakeslee,et al.  Stellar populations and surface brightness fluctuations: new observations and models , 2000, astro-ph/0008218.

[20]  Michael C. Liu,et al.  SURFACE BRIGHTNESS FLUCTUATIONS OF FORNAX CLUSTER GALAXIES : CALIBRATION OF INFRARED SBFS AND EVIDENCE FOR RECENT STAR FORMATION , 2001 .

[21]  M. West,et al.  The Principal Axis of the Virgo Cluster , 2000, astro-ph/0008470.

[22]  Zlatan Tsvetanov,et al.  The Structure of the Virgo Cluster from Surface Brightness Fluctuations in Hubble Space Telescope Images , 2000 .

[23]  K. Freeman,et al.  Testing the Surface Brightness Fluctuations Method for Dwarf Elliptical Galaxies in the Centaurus A Group , 1999, astro-ph/9912011.

[24]  J. Tonry,et al.  The Surface Brightness Fluctuation Survey of Galaxy Distances. II. Local and Large-Scale Flows , 1999, astro-ph/9907062.

[25]  Garth D. Illingworth,et al.  The Hubble Space Telescope Key Project on the Extragalactic Distance Scale. XXVI. The Calibration of Population II Secondary Distance Indicators and the Value of the Hubble Constant , 1999, astro-ph/9908192.

[26]  J. Tonry,et al.  The Infrared Surface Brightness Fluctuation Distances to the Hydra and Coma Clusters , 1998, astro-ph/9807326.

[27]  J. Tonry,et al.  Distances from Surface Brightness Fluctuations , 1998, astro-ph/9807124.

[28]  K. Freeman,et al.  Surface Brightness Fluctuation Distances to Dwarf Elliptical Galaxies in the Sculptor Group , 1998, astro-ph/9809046.

[29]  R. Hook,et al.  Drizzle: A Method for the Linear Reconstruction of Undersampled Images , 1998, astro-ph/9808087.

[30]  D. Schlegel,et al.  Maps of Dust Infrared Emission for Use in Estimation of Reddening and Cosmic Microwave Background Radiation Foregrounds , 1998 .

[31]  J. Tonry,et al.  Measuring Distances Using Infrared Surface Brightness Fluctuations , 1998, astro-ph/9804169.

[32]  Mark Clampin,et al.  Advanced camera for the Hubble Space Telescope , 1996, Astronomical Telescopes and Instrumentation.

[33]  H. Ford,et al.  Final Results from the Hubble Space Telescope Key Project to Measure the Hubble Constant , 1998, astro-ph/9801080.

[34]  T. Lauer,et al.  Calibration of the Surface Brightness Fluctution Method for use with the Hubble Space Telescope. , 1997 .

[35]  J. Tonry,et al.  The SBF Survey of Galaxy Distances. I. Sample Selection, Photometric Calibration, and the Hubble Constant , 1996, astro-ph/9609113.

[36]  William B. Sparks,et al.  Hubble Space Telescope Observations of Globular Clusters in M87 and an Estimate of H0 , 1995 .

[37]  J. Tonry,et al.  Measurements of globular cluster specific frequencies and luminosity function widths in coma , 1995 .

[38]  G. Worthey.  Comprehensive stellar population models and the disentanglement of age and metallicity effects , 1994 .

[39]  J. Mould,et al.  The dispersion in the near-infrared surface brightness fluctuations in the Virgo cluster , 1994 .

[40]  J. Tonry,et al.  SURFACE BRIGHTNESS FLUCTUATIONS IN GLOBULAR CLUSTERS AND STELLAR POPULATIONS IN GALAXIES , 1994 .

[41]  R. Davies,et al.  A CRITICAL REVIEW OF SELECTED TECHNIQUES FOR MEASURING EXTRAGALACTIC DISTANCES , 1992 .

[42]  William E. Harris,et al.  GLOBULAR CLUSTER SYSTEMS IN GALAXIES BEYOND THE LOCAL GROUP , 1991 .

[43]  Gerard A. Luppino,et al.  Observations of surface-brightness fluctuations in Virgo , 1990 .

[44]  John L. Tonry,et al.  A new technique for measuring extragalactic distances , 1988 .