SIMBAD references

2014MNRAS.439.1556M - Mon. Not. R. Astron. Soc., 439, 1556-1574 (2014/April-1)

The Atacama Cosmology Telescope: dusty star-forming galaxies and active galactic nuclei in the Southern survey.

MARSDEN D., GRALLA M., MARRIAGE T.A., SWITZER E.R., PARTRIDGE B., MASSARDI M., MORALES G., ADDISON G., BOND J.R., CRICHTON D., DAS S., DEVLIN M., DUNNER R., HAJIAN A., HILTON M., HINCKS A., HUGHES J.P., IRWIN K., KOSOWSKY A., MENANTEAU F., MOODLEY K., NIEMACK M., PAGE L., REESE E.D., SCHMITT B., SEHGAL N., SIEVERS J., STAGGS S., SWETZ D., THORNTON R. and WOLLACK E.

Abstract (from CDS):

We present a catalogue of 191 extragalactic sources detected by the Atacama Cosmology Telescope (ACT) at 148 and/or 218GHz in the 2008 Southern survey. Flux densities span 14 -1700mJy, and we use source spectral indices derived using ACT-only data to divide our sources into two subpopulations: 167 radio galaxies powered by central active galactic nuclei (AGN) and 24 dusty star-forming galaxies (DSFGs). We cross-identify 97 percent of our sources (166 of the AGN and 19 of the DSFGs) with those in currently available catalogues. When combined with flux densities from the Australia Telescope 20GHz survey and follow-up observations with the Australia Telescope Compact Array, the synchrotron-dominated population is seen to exhibit a steepening of the slope of the spectral energy distribution from 20 to 148GHz, with the trend continuing to 218GHz. The ACT dust-dominated source population has a median spectral index, α148-218, of 3.7^+0.62_-0.86, and includes both local galaxies and sources with redshift around 6. Dusty sources with no counterpart in existing catalogues likely belong to a recently discovered subpopulation of DSFGs lensed by foreground galaxies or galaxy groups.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): methods: numerical - surveys - galaxies: active - galaxies: high-redshift

VizieR on-line data: <Available at CDS (J/MNRAS/439/1556): table4.dat>

Nomenclature: Table 4: ACT-S JHHMMSS+DDMMSS N=191.

Simbad objects: 200

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2020.09.20-02:56:58

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