High-Resolution Deep Imaging of Distant Galaxies with Subaru Adaptive Optics

Details High-Resolution Deep Imaging of Distant Galaxies with Subaru Adaptive Optics High-Resolution Deep Imaging of Distant Galaxies with Subaru Adaptive Optics

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007asthe.100..184m&link_type=abstract

The Astronomical Herald (ISSN 0374-2466), Vol. 100, No. 4, p. 184 - 191 (2007)

Physics

Optics

Distant Galaxies, Subaru, Adaptive Optics

Scientific paper

Observations of distant galaxies are very important for investigating when primordial galaxies formed and how they evolved into present-day galaxies. Near-infrared deep imaging of a blank field towards the galactic pole is a vital method of exploring the distant galaxies. To push the limit of ground-based near-infrared imaging, we performed deep K'-band imaging of the Subaru deep field using adaptive optics that removes the blurring of starlight caused by the atmospheric turbulence, and we obtained the deepest K'-band image ever achieved. High-resolution and high-sensitivity AO image enabled the detailed analyses of the number count and luminosity-size relation of faint galaxies down to mK' ∝ 25. We found that the number density and the structure of galaxies at z ∝ 3 are not very diffeent from those of present-day galaxies.

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