SDSS surface photometry of M 31 with absorption corrections

Abstract

The objective of this work is to obtain an extinction-corrected distribution of optical surface brightness and colour indices of the large nearby galaxy M 31 using homogeneous observational data and a model for intrinsic extinction. We process the Sloan Digital Sky Survey (SDSS) images in ugriz passbands and construct corresponding mosaic images, taking special care of subtracting the varying sky background. We apply the galactic model developed in Tempel et al. (2010) and far-infrared imaging to correct the photometry for intrinsic dust effects. We obtain observed and dust-corrected distributions of the surface brightness of M 31 and a map of line-of-sight extinctions inside the galaxy. Our extinction model suggests that either M 31 is intrinsically non-symmetric along the minor axis or the dust properties differ from those of the Milky Way. Assuming the latter case, we present the surface brightness distributions and integral photometry for the Sloan filters as well as the standard UBVRI system. We find the following intrinsic integral colour indices for M 31: (U-B)_0=0.35; (B-V)_0=0.86; (V-R)_0=0.63; (R-I)_0=0.53; the total intrinsic absorption-corrected luminosities of M 31 in the B and the V filters are 4.10 and 3.24 mag, respectively.

6 pages, 8 figures, accepted for publication in A&A. The high-resolution zoomable colour image of M 31 can be seen at http://www.aai.ee/~elmo/m31/

References in corpus (10)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• The Sloan Digital Sky Survey: Technical Summary
• K-corrections and filter transformations in the ultraviolet, optical, and near infrared
• Evidence for Stellar Substructure in the Halo and Outer Disk of M31
• A Minor Axis Surface Brightness Profile for M31
• Dusty waves on a starry sea: the mid-infrared view of M31
• The SCUBA Local Universe Galaxy Survey - III. Dust along the Hubble sequence
• Dust properties in M31.I.Basic properties and a discussion on age-dependent dust heating
• High Resolution IRAS Maps and IR Emission of M31 --- II. Diffuse Component and Interstellar Dust
• Dust-corrected surface photometry of M 31 from the Spitzer far infrared observations

Cited by in corpus (22)

• The long bar as seen by the VVV survey: I. Colour-magnitude diagrams
• Stellar mass map and dark matter distribution in M31
• Evidence for spin alignment of spiral and elliptical/S0 galaxies in filaments
• The Herschel Exploitation of Local Galaxy Andromeda (HELGA) VII: A SKIRT radiative transfer model and insights on dust heating
• Tracing mass and light in the Universe: where is the dark matter?
• PAndromeda - first results from the high-cadence monitoring of M31 with Pan-STARRS 1
• The Recent Stellar Archeology of M31 - The Nearest Red Disk Galaxy
• The initial mass functions of M31 and M32 through far red stellar absorption features
• Attenuation modified by DIG and dust as seen in M31
• Mass-to-Light Ratios of Spatially Resolved Stellar Populations in M31
• A cold gas reservoir to fuel M31 nuclear black hole and stellar cluster
• Spiral arms and disc stability in the Andromeda galaxy
• Constraining the role of novae as progenitors of Type Ia Supernovae
• The Survey of Lines in M31 (SLIM): The Drivers of the [CII]/TIR Variation
• Stellar kinematics using a third integral of motion: method and application on the Andromeda galaxy
• A Large Group of Asymptotic Giant Branch Stars in the Disk of M31: A Missing Piece of the Puzzle?
• Exhaustion of the gas next to M31's supermassive black hole
• SED-inferred properties and morphology of Lyman-break galaxies at $z\sim 1$ in the CDF-S
• A multi-wavelength approach to classifying transient events in the direction of M31
• Limits on Dark Matter Annihilation from the Shape of Radio Emission in M31
• Recovering 3D structural properties of galaxies from SDSS-like photometry
• Modeling the Kinematics of Distant Galaxies