ALMA SPECTROSCOPIC SURVEY in the HUBBLE ULTRA DEEP FIELD: CO LUMINOSITY FUNCTIONS and the EVOLUTION of the COSMIC DENSITY of MOLECULAR GAS

Roberto Decarli, Fabian Walter, Manuel Aravena, Chris Carilli, Rychard Bouwens, Elisabete Da Cunha, Emanuele Daddi, R. J. Ivison, Gergö Popping, Dominik Riechers, Ian R. Smail, Mark Swinbank, Axel Weiss, Timo Anguita, Roberto J. Assef, Franz E. Bauer, Eric F. Bell, Frank Bertoldi, Scott Chapman, Luis Colina & 20 otros Paulo C. Cortes, Pierre Cox, Mark Dickinson, David Elbaz, Jorge Gónzalez-López, Edo Ibar, Leopoldo Infante, Jacqueline Hodge, Alex Karim, Olivier Le Fevre, Benjamin Magnelli, Roberto Neri, Pascal Oesch, Kazuaki Ota, Hans Walter Rix, Mark Sargent, Kartik Sheth, Arjen Van Der Wel, Paul Van Der Werf, Jeff Wagg

Resultado de la investigación: Contribución a la publicaciónArticle

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Resumen

In this paper we use ASPECS, the ALMA Spectroscopic Survey in the Hubble Ultra Deep Field in band 3 and band 6, to place blind constraints on the CO luminosity function and the evolution of the cosmic molecular gas density as a function of redshift up to z ∼ 4.5. This study is based on galaxies that have been selected solely through their CO emission and not through any other property. In all of the redshift bins the ASPECS measurements reach the predicted "knee" of the CO luminosity function (around 5 ×109 K km s-1 pc2). We find clear evidence of an evolution in the CO luminosity function with respect to z ∼ 0, with more CO-luminous galaxies present at z ∼ 2. The observed galaxies at z ∼ 2 also appear more gas-rich than predicted by recent semi-analytical models. The comoving cosmic molecular gas density within galaxies as a function of redshift shows a drop by a factor of 3-10 from z ∼ 2 to z ∼ 0 (with significant error bars), and possibly a decline at z > 3. This trend is similar to the observed evolution of the cosmic star formation rate density. The latter therefore appears to be at least partly driven by the increased availability of molecular gas reservoirs at the peak of cosmic star formation (z ∼ 2).

Idioma originalEnglish
Número de artículo69
PublicaciónAstrophysical Journal
Volumen833
Número de edición1
Identificadores de objetos digitales
EstadoPublished - 10 dic 2016

Huella dactilar

luminosity
galaxies
gas
molecular gases
cosmic gases
gas density
star formation rate
availability
star formation
trends
gases
COSMIC

Keywords

    ASJC Scopus subject areas

    • Astronomy and Astrophysics
    • Space and Planetary Science

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    Decarli, Roberto; Walter, Fabian; Aravena, Manuel; Carilli, Chris; Bouwens, Rychard; Da Cunha, Elisabete; Daddi, Emanuele; Ivison, R. J.; Popping, Gergö; Riechers, Dominik; Smail, Ian R.; Swinbank, Mark; Weiss, Axel; Anguita, Timo; Assef, Roberto J.; Bauer, Franz E.; Bell, Eric F.; Bertoldi, Frank; Chapman, Scott; Colina, Luis; Cortes, Paulo C.; Cox, Pierre; Dickinson, Mark; Elbaz, David; Gónzalez-López, Jorge; Ibar, Edo; Infante, Leopoldo; Hodge, Jacqueline; Karim, Alex; Fevre, Olivier Le; Magnelli, Benjamin; Neri, Roberto; Oesch, Pascal; Ota, Kazuaki; Rix, Hans Walter; Sargent, Mark; Sheth, Kartik; Van Der Wel, Arjen; Van Der Werf, Paul; Wagg, Jeff / ALMA SPECTROSCOPIC SURVEY in the HUBBLE ULTRA DEEP FIELD : CO LUMINOSITY FUNCTIONS and the EVOLUTION of the COSMIC DENSITY of MOLECULAR GAS.

    En: Astrophysical Journal, Vol. 833, N.º 1, 69, 10.12.2016.

    Resultado de la investigación: Contribución a la publicaciónArticle

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    title = "ALMA SPECTROSCOPIC SURVEY in the HUBBLE ULTRA DEEP FIELD: CO LUMINOSITY FUNCTIONS and the EVOLUTION of the COSMIC DENSITY of MOLECULAR GAS",
    abstract = "In this paper we use ASPECS, the ALMA Spectroscopic Survey in the Hubble Ultra Deep Field in band 3 and band 6, to place blind constraints on the CO luminosity function and the evolution of the cosmic molecular gas density as a function of redshift up to z ∼ 4.5. This study is based on galaxies that have been selected solely through their CO emission and not through any other property. In all of the redshift bins the ASPECS measurements reach the predicted {"}knee{"} of the CO luminosity function (around 5 ×109 K km s-1 pc2). We find clear evidence of an evolution in the CO luminosity function with respect to z ∼ 0, with more CO-luminous galaxies present at z ∼ 2. The observed galaxies at z ∼ 2 also appear more gas-rich than predicted by recent semi-analytical models. The comoving cosmic molecular gas density within galaxies as a function of redshift shows a drop by a factor of 3-10 from z ∼ 2 to z ∼ 0 (with significant error bars), and possibly a decline at z > 3. This trend is similar to the observed evolution of the cosmic star formation rate density. The latter therefore appears to be at least partly driven by the increased availability of molecular gas reservoirs at the peak of cosmic star formation (z ∼ 2).",
    keywords = "galaxies: evolution, galaxies: formation, galaxies: high-redshift, galaxies: ISM, surveys",
    author = "Roberto Decarli and Fabian Walter and Manuel Aravena and Chris Carilli and Rychard Bouwens and {Da Cunha}, Elisabete and Emanuele Daddi and Ivison, {R. J.} and Gergö Popping and Dominik Riechers and Smail, {Ian R.} and Mark Swinbank and Axel Weiss and Timo Anguita and Assef, {Roberto J.} and Bauer, {Franz E.} and Bell, {Eric F.} and Frank Bertoldi and Scott Chapman and Luis Colina and Cortes, {Paulo C.} and Pierre Cox and Mark Dickinson and David Elbaz and Jorge Gónzalez-López and Edo Ibar and Leopoldo Infante and Jacqueline Hodge and Alex Karim and Fevre, {Olivier Le} and Benjamin Magnelli and Roberto Neri and Pascal Oesch and Kazuaki Ota and Rix, {Hans Walter} and Mark Sargent and Kartik Sheth and {Van Der Wel}, Arjen and {Van Der Werf}, Paul and Jeff Wagg",
    year = "2016",
    month = "12",
    doi = "10.3847/1538-4357/833/1/69",
    volume = "833",
    journal = "Astrophysical Journal",
    issn = "0004-637X",
    publisher = "IOP Publishing Ltd.",
    number = "1",

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    Decarli, R, Walter, F, Aravena, M, Carilli, C, Bouwens, R, Da Cunha, E, Daddi, E, Ivison, RJ, Popping, G, Riechers, D, Smail, IR, Swinbank, M, Weiss, A, Anguita, T, Assef, RJ, Bauer, FE, Bell, EF, Bertoldi, F, Chapman, S, Colina, L, Cortes, PC, Cox, P, Dickinson, M, Elbaz, D, Gónzalez-López, J, Ibar, E, Infante, L, Hodge, J, Karim, A, Fevre, OL, Magnelli, B, Neri, R, Oesch, P, Ota, K, Rix, HW, Sargent, M, Sheth, K, Van Der Wel, A, Van Der Werf, P & Wagg, J 2016, 'ALMA SPECTROSCOPIC SURVEY in the HUBBLE ULTRA DEEP FIELD: CO LUMINOSITY FUNCTIONS and the EVOLUTION of the COSMIC DENSITY of MOLECULAR GAS' Astrophysical Journal, vol. 833, n.º 1, 69. DOI: 10.3847/1538-4357/833/1/69

    ALMA SPECTROSCOPIC SURVEY in the HUBBLE ULTRA DEEP FIELD : CO LUMINOSITY FUNCTIONS and the EVOLUTION of the COSMIC DENSITY of MOLECULAR GAS. / Decarli, Roberto; Walter, Fabian; Aravena, Manuel; Carilli, Chris; Bouwens, Rychard; Da Cunha, Elisabete; Daddi, Emanuele; Ivison, R. J.; Popping, Gergö; Riechers, Dominik; Smail, Ian R.; Swinbank, Mark; Weiss, Axel; Anguita, Timo; Assef, Roberto J.; Bauer, Franz E.; Bell, Eric F.; Bertoldi, Frank; Chapman, Scott; Colina, Luis; Cortes, Paulo C.; Cox, Pierre; Dickinson, Mark; Elbaz, David; Gónzalez-López, Jorge; Ibar, Edo; Infante, Leopoldo; Hodge, Jacqueline; Karim, Alex; Fevre, Olivier Le; Magnelli, Benjamin; Neri, Roberto; Oesch, Pascal; Ota, Kazuaki; Rix, Hans Walter; Sargent, Mark; Sheth, Kartik; Van Der Wel, Arjen; Van Der Werf, Paul; Wagg, Jeff.

    En: Astrophysical Journal, Vol. 833, N.º 1, 69, 10.12.2016.

    Resultado de la investigación: Contribución a la publicaciónArticle

    TY - JOUR

    T1 - ALMA SPECTROSCOPIC SURVEY in the HUBBLE ULTRA DEEP FIELD

    T2 - Astrophysical Journal

    AU - Decarli,Roberto

    AU - Walter,Fabian

    AU - Aravena,Manuel

    AU - Carilli,Chris

    AU - Bouwens,Rychard

    AU - Da Cunha,Elisabete

    AU - Daddi,Emanuele

    AU - Ivison,R. J.

    AU - Popping,Gergö

    AU - Riechers,Dominik

    AU - Smail,Ian R.

    AU - Swinbank,Mark

    AU - Weiss,Axel

    AU - Anguita,Timo

    AU - Assef,Roberto J.

    AU - Bauer,Franz E.

    AU - Bell,Eric F.

    AU - Bertoldi,Frank

    AU - Chapman,Scott

    AU - Colina,Luis

    AU - Cortes,Paulo C.

    AU - Cox,Pierre

    AU - Dickinson,Mark

    AU - Elbaz,David

    AU - Gónzalez-López,Jorge

    AU - Ibar,Edo

    AU - Infante,Leopoldo

    AU - Hodge,Jacqueline

    AU - Karim,Alex

    AU - Fevre,Olivier Le

    AU - Magnelli,Benjamin

    AU - Neri,Roberto

    AU - Oesch,Pascal

    AU - Ota,Kazuaki

    AU - Rix,Hans Walter

    AU - Sargent,Mark

    AU - Sheth,Kartik

    AU - Van Der Wel,Arjen

    AU - Van Der Werf,Paul

    AU - Wagg,Jeff

    PY - 2016/12/10

    Y1 - 2016/12/10

    N2 - In this paper we use ASPECS, the ALMA Spectroscopic Survey in the Hubble Ultra Deep Field in band 3 and band 6, to place blind constraints on the CO luminosity function and the evolution of the cosmic molecular gas density as a function of redshift up to z ∼ 4.5. This study is based on galaxies that have been selected solely through their CO emission and not through any other property. In all of the redshift bins the ASPECS measurements reach the predicted "knee" of the CO luminosity function (around 5 ×109 K km s-1 pc2). We find clear evidence of an evolution in the CO luminosity function with respect to z ∼ 0, with more CO-luminous galaxies present at z ∼ 2. The observed galaxies at z ∼ 2 also appear more gas-rich than predicted by recent semi-analytical models. The comoving cosmic molecular gas density within galaxies as a function of redshift shows a drop by a factor of 3-10 from z ∼ 2 to z ∼ 0 (with significant error bars), and possibly a decline at z > 3. This trend is similar to the observed evolution of the cosmic star formation rate density. The latter therefore appears to be at least partly driven by the increased availability of molecular gas reservoirs at the peak of cosmic star formation (z ∼ 2).

    AB - In this paper we use ASPECS, the ALMA Spectroscopic Survey in the Hubble Ultra Deep Field in band 3 and band 6, to place blind constraints on the CO luminosity function and the evolution of the cosmic molecular gas density as a function of redshift up to z ∼ 4.5. This study is based on galaxies that have been selected solely through their CO emission and not through any other property. In all of the redshift bins the ASPECS measurements reach the predicted "knee" of the CO luminosity function (around 5 ×109 K km s-1 pc2). We find clear evidence of an evolution in the CO luminosity function with respect to z ∼ 0, with more CO-luminous galaxies present at z ∼ 2. The observed galaxies at z ∼ 2 also appear more gas-rich than predicted by recent semi-analytical models. The comoving cosmic molecular gas density within galaxies as a function of redshift shows a drop by a factor of 3-10 from z ∼ 2 to z ∼ 0 (with significant error bars), and possibly a decline at z > 3. This trend is similar to the observed evolution of the cosmic star formation rate density. The latter therefore appears to be at least partly driven by the increased availability of molecular gas reservoirs at the peak of cosmic star formation (z ∼ 2).

    KW - galaxies: evolution

    KW - galaxies: formation

    KW - galaxies: high-redshift

    KW - galaxies: ISM

    KW - surveys

    UR - http://www.scopus.com/inward/record.url?scp=85006476404&partnerID=8YFLogxK

    U2 - 10.3847/1538-4357/833/1/69

    DO - 10.3847/1538-4357/833/1/69

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    JO - Astrophysical Journal

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    Decarli R, Walter F, Aravena M, Carilli C, Bouwens R, Da Cunha E y otros. ALMA SPECTROSCOPIC SURVEY in the HUBBLE ULTRA DEEP FIELD: CO LUMINOSITY FUNCTIONS and the EVOLUTION of the COSMIC DENSITY of MOLECULAR GAS. Astrophysical Journal. 2016 dic 10;833(1). 69. Disponible desde, DOI: 10.3847/1538-4357/833/1/69