Subaru Super Deep Field with Adaptive Optics I. Observations and First Implications

Abstract

We present a deep $K^{\prime }$-band (2.12$\mu$m) imaging of 1\arcmin\ $\times$ 1\arcmin Subaru Super Deep Field (SSDF) taken with the Subaru adaptive optics (AO) system. Total integration time of 26.8 hours results in the limiting magnitude of $K^{\prime }\sim 24.7$ (5$\sigma$, 0\farcs2 aperture) for point sources and $K^{\prime }\sim 23.5$ (5$\sigma$, 0\farcs6 aperture) for galaxies, which is the deepest limit ever achieved in the $K^{\prime }$ band. The average stellar FWHM of the co-added image is 0\farcs18. Based on the photometric measurements of detected galaxies, we obtained the differential galaxy number counts, for the first time, down to $K^{\prime }\sim 25$, which is more than 0.5 mag deeper than the previous data. We found that the number count slope $d\log N/dm$ is about 0.15 at $22<K^{\prime }<25$, which is flatter than the previous data. Therefore, detected galaxies in the SSDF have only negligible contribution to the near-infrared extragalactic background light (EBL), and the discrepancy claimed so far between the diffuse EBL measurements and the estimated EBL from galaxy count integration has become more serious . The size distribution of detected galaxies was obtained down to the area size of less than 0.1 arcsec${}^2$, which is less than a half of the previous data in the $K^{\prime }$ band. We compared the observed size-magnitude relation with a simple pure luminosity evolution model allowing for intrinsic size evolution, and found that a model with no size evolution gives the best fit to the data. It implies that the surface brightness of galaxies at high redshift is not much different from that expected from the size-luminosity relation of present-day galaxies.

17 pages, 28 figures, 3 tables, Accepted for publication in the Astrophysical Journal

References in corpus (40)

• The Hubble Deep Field: Observations, Data Reduction, and Galaxy Photometry
• Subaru Prime Focus Camera -- Suprime-Cam --
• The Mauna Kea Observatories Near-Infrared Filter Set. II. Specifications for a New JHKL'M' Filter Set for Infrared Astronomy
• Deep Galaxy Counts, Extragalactic Background Light, and the Stellar Baryon Budget
• Ultradeep Near-Infrared ISAAC Observations of the HDF-S: Observations, Reduction, Multicolor Catalog, and Photometric Redshifts
• The Contribution of the First Stars to the Cosmic Infrared Background
• Infrared Emission from the Radio Supernebula in NGC 5253: A Proto-Globular Cluster?
• The Subaru Deep Field: The Optical Imaging Data
• Deep optical galaxy counts with the Keck Telescope
• Current Performance and On-Going Improvements of the 8.2 m Subaru Telescope
• The Imprint of the Cosmic Dark Ages on the Near Infrared Background
• The Cosmic Infrared Background at 1.25 microns and 2.2 microns using DIRBE and 2MASS: a contribution not due to galaxies ?
• The Angular Correlation Function and Hierarchical Moments of 70000 Faint Galaxies to R=23.5
• Faint Blue Galaxies and the Epoch of Dwarf-Galaxy Formation
• The Hawaii K-Band Galaxy Survey. II. Bright K-band Imaging
• Subaru Deep Survey I. Near-Infrared Observations
• A wide-field K-band survey - I. Galaxy counts in B, V, I and K
• Colors and K-Band Counts of Extremely Faint Field Galaxies
• Near-Infrared Galaxy Counts to J and K ~ 24 as a Function of Image Size
• Barred Galaxies at z > 0.7: NICMOS HDFN Observations
• An imaging K-band survey - I: The catalogue, star and galaxy counts
• Diffuse Extragalactic Background Light versus Deep Galaxy Counts in the Subaru Deep Field: Missing Light in the Universe?
• DIRBE Minus 2MASS: Confirming the Cosmic Infrared Background at 2.2 Microns
• The Near-Infrared Number Counts and Luminosity Functions of Local Galaxies
• Near Infrared Faint Galaxies in the Subaru Deep Field: Comparing the Theory with Observations for Galaxy Counts, Colors, and Size Distributions to K=24.5
• Faint K Selected Galaxy Correlations and Clustering Evolution
• CISCO: Cooled Infrared Spectrograph and Camera for OHS on the Subaru Telescope
• Deep H-band Galaxy Counts and Half-light Radii from HST/NICMOS Parallel Observations
• First Sources in Infrared Light: Stars, Supernovae and Miniquasars
• The Angular Correlation Function of K=19.5 Galaxies and the Detection of a Cluster at z=0.775
• K-Band Galaxy Counts in the South Galactic Pole Region
• The Hubble Deep Field South - STIS Imaging
• Unavoidable Selection Effects in the Analysis of Faint Galaxies in the Hubble Deep Field: Probing the Cosmology and Merger History of Galaxies
• Galaxy Number Counts in the Subaru Deep Field: Multi-band Analysis in a Hierarchical Galaxy Formation Model
• A Deep Multicolor Survey. VI. Near-Infrared Observations, Selection Effects, and Number Counts
• When the Hubble Sequence Appeared ?: Morphology, Color, and Number-Density Evolution of the Galaxies in the Hubble Deep Field North
• A wide-field K-band survey - II. Galaxy clustering
• Star Formation History and Other Properties of the Northern HDF
• The Interpretation of Near-Infrared Star Counts at the South Galactic Pole
• Galaxies in Southern Bright Star Fields I. Near-infrared imaging

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