Faint star counts in the near-infrared
Astrophysics
2009-11-07 v1
Abstract
We discuss near-infrared star counts at the Galactic pole with a view to guiding the NGST and ground-based NIR cameras. Star counts from deep K-band images from the CFHT are presented, and compared with results from the 2MASS survey and some Galaxy models. With appropriate corrections for detector artifacts and galaxies, the data agree with the models down to K~18, but indicate a larger population of fainter red stars. There is also a significant population of compact galaxies that extend to the observational faint limit of K=20.5. Recent Galaxy models agree well down to K19, but diverge at fainter magnitudes.
Cite
@article{arxiv.astro-ph/0204284,
title = {Faint star counts in the near-infrared},
author = {J. B. Hutchings and P. B. Stetson and A. Robin and T. Webb},
journal= {arXiv preprint arXiv:astro-ph/0204284},
year = {2009}
}
Comments
14 pages and 4 diagrams; to appear in PASP