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[CII] 158μm Emission from z ≥ 10 Galaxies

Carilli, C. L., Murphy, E. J., Ferrara, A. & Dayal, P., 1-Dec-2018, Science with a Next Generation Very Large Array. Murphy, E. J. (ed.). Astronomical Society of the Pacific, p. 557 - 564 (Astronomical Society of the Pacific series; vol. 7).

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  • [CII] 158μm Emission from z ≥ 10 Galaxies

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  • C. L. Carilli
  • E. J. Murphy
  • A. Ferrara
  • P. Dayal
We consider the capabilities of ALMA and the ngVLA to detect and image the [CII] 158 μm line from galaxies into the cosmic 'dark ages' (z ̃ 10 to 20). The [CII] line may prove to be a powerful tool in determining spectroscopic redshifts, and galaxy dynamics, for the first galaxies. In 40 hr, ALMA has the sensitivity to detect the integrated [CII] line emission from a moderate metallicity, active star-forming galaxy [ZA = 0.2Z; star formation rate (SFR) = 5 M yr-1], at z = 10 at a significance of 6σ. The ngVLA will detect the integrated [CII] line emission from a Milky-Way like star formation rate galaxy (ZA = 0.2Z, SFR = 1 M yr-1), at z = 15 at a significance of 6σ. Imaging simulations show that the ngVLA can determine rotation dynamics for active star-forming galaxies at z ̃ 15, if they exist. The [CII] detection rate in blind surveys will be slow (of order unity per 40 hr pointing).
Original languageEnglish
Title of host publicationScience with a Next Generation Very Large Array
EditorsEric J. Murphy
PublisherAstronomical Society of the Pacific
Pages557 - 564
Publication statusPublished - 1-Dec-2018

Publication series

NameAstronomical Society of the Pacific series
PublisherAstronomical Society of the Pacific
Volume7
ISSN (Print)1050-3390

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