CO J = 1-0 SPECTROSCOPY OF FOUR SUBMILLIMETER GALAXIES WITH THE ZPECTROMETER ON THE GREEN BANK TELESCOPE

@article{Harris2010COJ,
  title={CO J = 1-0 SPECTROSCOPY OF FOUR SUBMILLIMETER GALAXIES WITH THE ZPECTROMETER ON THE GREEN BANK TELESCOPE},
  author={Andrew I. Harris and Andrew J. Baker and Stephanie G. Zonak and Chelsea E. Sharon and Reinhard Genzel and Kevin Patrick Rauch and Galen Watts and R. Creager University of Maryland and Rutgers University and Max-Planck-Institut fur extraterrestrische Physik and University of Southern California and Berkeley and National Radio Astronomy Observatory and Green Bank},
  journal={The Astrophysical Journal},
  year={2010},
  volume={723},
  pages={1139-1149}
}
We report detections of three z ~ 2.5 submillimeter-selected galaxies (SMGs; SMM J14011+0252, SMM J14009+0252, SMM J04431+0210) in the lowest rotational transition of the carbon monoxide molecule (CO J = 1-0) and one nondetection (SMM J04433+0210). For the three galaxies we detected, we find a line-integrated brightness temperature ratio of the J = 3-2 and 1-0 lines of 0.68 ± 0.08; the 1-0 line is stronger than predicted by the frequent assumption of equal brightnesses in the two lines and by… Expand

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