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ALMA Spectroscopic Survey in the Hubble Ultra Deep Field: Survey Description

Walter, F.; Decarli, R.; Aravena, M.; Carilli, C.; Bouwens, R.; da Cunha, E.; Daddi, E.; Ivison, R.J.; Riechers, D.; Smail, I.; Swinbank, M.; Weiss, A.; Anguita, T.; Assef, R.; Bacon, R.; Bauer, F.; Bell, E.F.; Bertoldi, F.; Chapman, S.; Colina, L.; Cortes, P.C.; Cox, P.; Dickinson, M.; Elbaz, D.; Gónzalez-López, J.; Ibar, E.; Inami, H.; Infante, L.; Hodge, J.; Karim, A.; Le Fevre, O.; Magnelli, B.; Neri, R.; Oesch, P.; Ota, K.; Popping, G.; Rix, H.-W.; Sargent, M.; Sheth, K.; van der Wel, A.; van der Werf, P.; Wagg, J.

ALMA Spectroscopic Survey in the Hubble Ultra Deep Field: Survey Description Thumbnail


F. Walter

R. Decarli

M. Aravena

C. Carilli

R. Bouwens

E. da Cunha

E. Daddi

R.J. Ivison

D. Riechers

A. Weiss

T. Anguita

R. Assef

R. Bacon

F. Bauer

E.F. Bell

F. Bertoldi

S. Chapman

L. Colina

P.C. Cortes

P. Cox

M. Dickinson

D. Elbaz

J. Gónzalez-López

E. Ibar

H. Inami

L. Infante

J. Hodge

A. Karim

O. Le Fevre

B. Magnelli

R. Neri

P. Oesch

K. Ota

G. Popping

H.-W. Rix

M. Sargent

K. Sheth

A. van der Wel

P. van der Werf

J. Wagg


We present the rationale for and the observational description of ASPECS: The ALMA SPECtroscopic Survey in the Hubble Ultra-Deep Field (UDF), the cosmological deep field that has the deepest multi-wavelength data available. Our overarching goal is to obtain an unbiased census of molecular gas and dust continuum emission in high-redshift (z>0.5) galaxies. The ∼1′ region covered within the UDF was chosen to overlap with the deepest available imaging from HST. Our ALMA observations consist of full frequency scans in band 3 (84-115 GHz) and band 6 (212-272 GHz) at approximately uniform line sensitivity (L′CO∼2×109 K km/s pc2), and continuum noise levels of 3.8 μJy beam−1 and 12.7 μJy beam−1, respectively. The molecular surveys cover the different rotational transitions of the CO molecule, leading to essentially full redshift coverage. The [CII] emission line is also covered at redshifts 6.0


Walter, F., Decarli, R., Aravena, M., Carilli, C., Bouwens, R., da Cunha, E., …Wagg, J. (2016). ALMA Spectroscopic Survey in the Hubble Ultra Deep Field: Survey Description. Astrophysical Journal, 833(1), Article 67.

Journal Article Type Article
Acceptance Date Jul 26, 2016
Online Publication Date Dec 8, 2016
Publication Date Dec 8, 2016
Deposit Date Feb 22, 2017
Publicly Available Date Mar 9, 2017
Journal Astrophysical Journal
Print ISSN 0004-637X
Electronic ISSN 1538-4357
Publisher American Astronomical Society
Peer Reviewed Peer Reviewed
Volume 833
Issue 1
Article Number 67
Related Public URLs


Published Journal Article (3.4 Mb)

Copyright Statement
© 2016. The American Astronomical Society. All rights reserved.

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