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Gravitationally Lensed CO and Dust at High Redshift: New LMT/GTM Images and Spectra of Sub-Millimeter Galaxies

Published online by Cambridge University Press:  21 March 2017

J. D. Lowenthal ,
K. Harrington ,
D. Berman ,
M. Yun ,
R. Cybulski ,
G. W. Wilson ,
I. Aretxaga ,
M. Chavez ,
V. De la Luz  and
N. Erickson
...Show all authors
J. D. Lowenthal
Affiliation:
Smith College (USA); email: [email protected]
K. Harrington
Affiliation:
UMass, Amherst (USA)
D. Berman
Affiliation:
UMass, Amherst (USA)
M. Yun
Affiliation:
UMass, Amherst (USA)
R. Cybulski
Affiliation:
UMass, Amherst (USA)
G. W. Wilson
Affiliation:
UMass, Amherst (USA)
I. Aretxaga
Affiliation:
Instituto Nacional de Astrofísica, Óptica, y Electrónica(MEX)
M. Chavez
Affiliation:
Instituto Nacional de Astrofísica, Óptica, y Electrónica(MEX)
V. De la Luz
Affiliation:
Instituto Nacional de Astrofísica, Óptica, y Electrónica(MEX)
N. Erickson
Affiliation:
UMass, Amherst (USA)
D. Ferrusca
Affiliation:
Instituto Nacional de Astrofísica, Óptica, y Electrónica(MEX)
A. Gallup
Affiliation:
UMass, Amherst (USA)
D. Hughes
Affiliation:
Instituto Nacional de Astrofísica, Óptica, y Electrónica(MEX)
A. Montaña
Affiliation:
Instituto Nacional de Astrofísica, Óptica, y Electrónica(MEX) CNCT(MEX)
G. Narayanan
Affiliation:
UMass, Amherst (USA)
D. Sánchez-Argüelles
Affiliation:
Instituto Nacional de Astrofísica, Óptica, y Electrónica(MEX)
F. P. Schloerb
Affiliation:
UMass, Amherst (USA)
K. Souccar
Affiliation:
UMass, Amherst (USA)
E. Terlevich
Affiliation:
Instituto Nacional de Astrofísica, Óptica, y Electrónica(MEX)
R. Terlevich
Affiliation:
Instituto Nacional de Astrofísica, Óptica, y Electrónica(MEX) Institute of Astronomy (UK)
M. Zeballos
Affiliation:
Instituto Nacional de Astrofísica, Óptica, y Electrónica(MEX)
J. A. Zavala
Affiliation:
Instituto Nacional de Astrofísica, Óptica, y Electrónica(MEX)
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Abstract

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We have assembled a new sample of some of the most FIR-luminous galaxies in the Universe and have imaged them in 1.1 mm dust emission and measured their redshifts 1 < z < 4 via CO emission lines using the 32-m Large Millimeter Telescope / Gran Telescopio Milimétrico (LMT/GTM). Our sample of 31 submm galaxies (SMGs), culled from the Planck and Herschel all-sky surveys, includes 14 of the 21 most luminous galaxies known, with LFIR > 1014L⊙ and SFR > 104M⊙/yr. These extreme inferred luminosities – and multiple / extended 1.1 mm images – imply that most or all are strongly gravitationally lensed, with typical magnification μ ~ 10 × . The gravitational lensing provides two significant benefits: (1) it boosts the S/N, and (2) it allows investigation of star formation and gas processes on sub-kpc scales.

Keywords

galaxies: starburstgalaxies: high-redshiftsubmillimeterinfrared: galaxiesgravitational lensing
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S321: Formation and Evolution of Galaxy Outskirts , March 2016 , pp. 363
Copyright
Copyright © International Astronomical Union 2017 

References

Erickson, N., Naryanan, G., Goeller, R., & Grosslein, R. 2007, ASP-CS, 375, 71 Google Scholar
Harrington, K., Yun, M. S., Cybulski, R., et al. 2016, MNRAS, 458, 4383 CrossRefGoogle Scholar
Wilson, G., Austermann, J., Perera, T., et al. 2008, MNRAS, 386, 807 CrossRefGoogle Scholar