The ALMA Frontier Fields Survey: I. 1.1 mm continuum detections in Abell 2744, MACS J0416.1-2403 and MACS J1149.5+2223

J. González-López, F. E. Bauer, C. Romero-Cañizales, R. Kneissl, E. Villard, R. Carvajal, S. Kim, N. Laporte, T. Anguita, M. Aravena, R. J. Bouwens, L. Bradley, M. Carrasco, R. Demarco, H. Ford, E. Ibar, L. Infante, H. Messias, A. M. Muñoz Arancibia, N. Nagar & 4 otros N. Padilla, E. Treister, P. Troncoso, A. Zitrin

Resultado de la investigación: Contribución a la publicaciónArticle

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Resumen

Context. Dusty star-forming galaxies are among the most prodigious systems at high redshift (z> 1), characterized by high starformation rates and huge dust reservoirs. The bright end of this population has been well characterized in recent years, but considerable uncertainties remain for fainter dusty star-forming galaxies, which are responsible for the bulk of star formation at high redshift and thus play a key role in galaxy growth and evolution. Aims. In this first paper of our series, we describe our methods for finding high redshift faint dusty galaxies using millimeter observations with ALMA. Methods. We obtained ALMA 1.1mm mosaic images for three strong-lensing galaxy clusters from the Frontier Fields Survey, which constitute some of the best studied gravitational lenses to date. The 20 20 mosaics overlap with the deep HST WFC3/IR footprints and encompass the high magnification regions of each cluster for maximum intrinsic source sensitivity. The combination of extremely high ALMA sensitivity and the magnification power of these clusters allows us to systematically probe the sub-mJy population of dusty star-forming galaxies over a large surveyed area. Results. We present a description of the reduction and analysis of the ALMA continuum observations for the galaxy clusters Abell 2744 (z = 0:308), MACS J0416.1-2403 (z = 0:396) and MACS J1149.5+2223 (z = 0:543), for which we reach observed rms sensitivities of 55, 59 and 71 Jy beam-1 respectively.We detect 12 dusty star-forming galaxies at S=N 5:0 across the three clusters, all of them presenting coincidence with near-infrared detected counterparts in the HST images. None of the sources fall close to the lensing caustics, thus they are not strongly lensed. The observed 1.1mm flux densities for the total sample of galaxies range from 0.41 to 2.82 mJy, with observed effective radii spanning .00:005 to 00:037 00:021. The lensing-corrected sizes of the detected sources appear to be in the same range as those measured in brighter samples, albeit with possibly larger dispersion.

Idioma originalEnglish
Número de artículoA41
PublicaciónAstronomy and Astrophysics
Volumen597
Identificadores de objetos digitales
EstadoPublished - 1 ene 2017

Huella dactilar

field survey
galaxies
subpopulation
footprint
near infrared
probe
dust
stars
sensitivity
magnification
continuums
gravitational lenses
footprints
star formation
alkalies
flux density
radii
probes

Keywords

    ASJC Scopus subject areas

    • Astronomy and Astrophysics
    • Space and Planetary Science

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    González-López, J., Bauer, F. E., Romero-Cañizales, C., Kneissl, R., Villard, E., Carvajal, R., ... Zitrin, A. (2017). The ALMA Frontier Fields Survey: I. 1.1 mm continuum detections in Abell 2744, MACS J0416.1-2403 and MACS J1149.5+2223. Astronomy and Astrophysics, 597, [A41]. DOI: 10.1051/0004-6361/201628806

    González-López, J.; Bauer, F. E.; Romero-Cañizales, C.; Kneissl, R.; Villard, E.; Carvajal, R.; Kim, S.; Laporte, N.; Anguita, T.; Aravena, M.; Bouwens, R. J.; Bradley, L.; Carrasco, M.; Demarco, R.; Ford, H.; Ibar, E.; Infante, L.; Messias, H.; Muñoz Arancibia, A. M.; Nagar, N.; Padilla, N.; Treister, E.; Troncoso, P.; Zitrin, A. / The ALMA Frontier Fields Survey : I. 1.1 mm continuum detections in Abell 2744, MACS J0416.1-2403 and MACS J1149.5+2223.

    En: Astronomy and Astrophysics, Vol. 597, A41, 01.01.2017.

    Resultado de la investigación: Contribución a la publicaciónArticle

    @article{206719e823444f42aac2ec5fe111aa75,
    title = "The ALMA Frontier Fields Survey: I. 1.1 mm continuum detections in Abell 2744, MACS J0416.1-2403 and MACS J1149.5+2223",
    abstract = "Context. Dusty star-forming galaxies are among the most prodigious systems at high redshift (z> 1), characterized by high starformation rates and huge dust reservoirs. The bright end of this population has been well characterized in recent years, but considerable uncertainties remain for fainter dusty star-forming galaxies, which are responsible for the bulk of star formation at high redshift and thus play a key role in galaxy growth and evolution. Aims. In this first paper of our series, we describe our methods for finding high redshift faint dusty galaxies using millimeter observations with ALMA. Methods. We obtained ALMA 1.1mm mosaic images for three strong-lensing galaxy clusters from the Frontier Fields Survey, which constitute some of the best studied gravitational lenses to date. The 20 20 mosaics overlap with the deep HST WFC3/IR footprints and encompass the high magnification regions of each cluster for maximum intrinsic source sensitivity. The combination of extremely high ALMA sensitivity and the magnification power of these clusters allows us to systematically probe the sub-mJy population of dusty star-forming galaxies over a large surveyed area. Results. We present a description of the reduction and analysis of the ALMA continuum observations for the galaxy clusters Abell 2744 (z = 0:308), MACS J0416.1-2403 (z = 0:396) and MACS J1149.5+2223 (z = 0:543), for which we reach observed rms sensitivities of 55, 59 and 71 Jy beam-1 respectively.We detect 12 dusty star-forming galaxies at S=N 5:0 across the three clusters, all of them presenting coincidence with near-infrared detected counterparts in the HST images. None of the sources fall close to the lensing caustics, thus they are not strongly lensed. The observed 1.1mm flux densities for the total sample of galaxies range from 0.41 to 2.82 mJy, with observed effective radii spanning .00:005 to 00:037 00:021. The lensing-corrected sizes of the detected sources appear to be in the same range as those measured in brighter samples, albeit with possibly larger dispersion.",
    keywords = "Galaxies: High-redshift, Gravitational lensing: Strong, Submillimeter: Galaxies",
    author = "J. González-López and Bauer, {F. E.} and C. Romero-Cañizales and R. Kneissl and E. Villard and R. Carvajal and S. Kim and N. Laporte and T. Anguita and M. Aravena and Bouwens, {R. J.} and L. Bradley and M. Carrasco and R. Demarco and H. Ford and E. Ibar and L. Infante and H. Messias and {Muñoz Arancibia}, {A. M.} and N. Nagar and N. Padilla and E. Treister and P. Troncoso and A. Zitrin",
    year = "2017",
    month = "1",
    doi = "10.1051/0004-6361/201628806",
    volume = "597",
    journal = "Astronomy and Astrophysics",
    issn = "0004-6361",
    publisher = "EDP Sciences",

    }

    González-López, J, Bauer, FE, Romero-Cañizales, C, Kneissl, R, Villard, E, Carvajal, R, Kim, S, Laporte, N, Anguita, T, Aravena, M, Bouwens, RJ, Bradley, L, Carrasco, M, Demarco, R, Ford, H, Ibar, E, Infante, L, Messias, H, Muñoz Arancibia, AM, Nagar, N, Padilla, N, Treister, E, Troncoso, P & Zitrin, A 2017, 'The ALMA Frontier Fields Survey: I. 1.1 mm continuum detections in Abell 2744, MACS J0416.1-2403 and MACS J1149.5+2223' Astronomy and Astrophysics, vol. 597, A41. DOI: 10.1051/0004-6361/201628806

    The ALMA Frontier Fields Survey : I. 1.1 mm continuum detections in Abell 2744, MACS J0416.1-2403 and MACS J1149.5+2223. / González-López, J.; Bauer, F. E.; Romero-Cañizales, C.; Kneissl, R.; Villard, E.; Carvajal, R.; Kim, S.; Laporte, N.; Anguita, T.; Aravena, M.; Bouwens, R. J.; Bradley, L.; Carrasco, M.; Demarco, R.; Ford, H.; Ibar, E.; Infante, L.; Messias, H.; Muñoz Arancibia, A. M.; Nagar, N.; Padilla, N.; Treister, E.; Troncoso, P.; Zitrin, A.

    En: Astronomy and Astrophysics, Vol. 597, A41, 01.01.2017.

    Resultado de la investigación: Contribución a la publicaciónArticle

    TY - JOUR

    T1 - The ALMA Frontier Fields Survey

    T2 - Astronomy and Astrophysics

    AU - González-López,J.

    AU - Bauer,F. E.

    AU - Romero-Cañizales,C.

    AU - Kneissl,R.

    AU - Villard,E.

    AU - Carvajal,R.

    AU - Kim,S.

    AU - Laporte,N.

    AU - Anguita,T.

    AU - Aravena,M.

    AU - Bouwens,R. J.

    AU - Bradley,L.

    AU - Carrasco,M.

    AU - Demarco,R.

    AU - Ford,H.

    AU - Ibar,E.

    AU - Infante,L.

    AU - Messias,H.

    AU - Muñoz Arancibia,A. M.

    AU - Nagar,N.

    AU - Padilla,N.

    AU - Treister,E.

    AU - Troncoso,P.

    AU - Zitrin,A.

    PY - 2017/1/1

    Y1 - 2017/1/1

    N2 - Context. Dusty star-forming galaxies are among the most prodigious systems at high redshift (z> 1), characterized by high starformation rates and huge dust reservoirs. The bright end of this population has been well characterized in recent years, but considerable uncertainties remain for fainter dusty star-forming galaxies, which are responsible for the bulk of star formation at high redshift and thus play a key role in galaxy growth and evolution. Aims. In this first paper of our series, we describe our methods for finding high redshift faint dusty galaxies using millimeter observations with ALMA. Methods. We obtained ALMA 1.1mm mosaic images for three strong-lensing galaxy clusters from the Frontier Fields Survey, which constitute some of the best studied gravitational lenses to date. The 20 20 mosaics overlap with the deep HST WFC3/IR footprints and encompass the high magnification regions of each cluster for maximum intrinsic source sensitivity. The combination of extremely high ALMA sensitivity and the magnification power of these clusters allows us to systematically probe the sub-mJy population of dusty star-forming galaxies over a large surveyed area. Results. We present a description of the reduction and analysis of the ALMA continuum observations for the galaxy clusters Abell 2744 (z = 0:308), MACS J0416.1-2403 (z = 0:396) and MACS J1149.5+2223 (z = 0:543), for which we reach observed rms sensitivities of 55, 59 and 71 Jy beam-1 respectively.We detect 12 dusty star-forming galaxies at S=N 5:0 across the three clusters, all of them presenting coincidence with near-infrared detected counterparts in the HST images. None of the sources fall close to the lensing caustics, thus they are not strongly lensed. The observed 1.1mm flux densities for the total sample of galaxies range from 0.41 to 2.82 mJy, with observed effective radii spanning .00:005 to 00:037 00:021. The lensing-corrected sizes of the detected sources appear to be in the same range as those measured in brighter samples, albeit with possibly larger dispersion.

    AB - Context. Dusty star-forming galaxies are among the most prodigious systems at high redshift (z> 1), characterized by high starformation rates and huge dust reservoirs. The bright end of this population has been well characterized in recent years, but considerable uncertainties remain for fainter dusty star-forming galaxies, which are responsible for the bulk of star formation at high redshift and thus play a key role in galaxy growth and evolution. Aims. In this first paper of our series, we describe our methods for finding high redshift faint dusty galaxies using millimeter observations with ALMA. Methods. We obtained ALMA 1.1mm mosaic images for three strong-lensing galaxy clusters from the Frontier Fields Survey, which constitute some of the best studied gravitational lenses to date. The 20 20 mosaics overlap with the deep HST WFC3/IR footprints and encompass the high magnification regions of each cluster for maximum intrinsic source sensitivity. The combination of extremely high ALMA sensitivity and the magnification power of these clusters allows us to systematically probe the sub-mJy population of dusty star-forming galaxies over a large surveyed area. Results. We present a description of the reduction and analysis of the ALMA continuum observations for the galaxy clusters Abell 2744 (z = 0:308), MACS J0416.1-2403 (z = 0:396) and MACS J1149.5+2223 (z = 0:543), for which we reach observed rms sensitivities of 55, 59 and 71 Jy beam-1 respectively.We detect 12 dusty star-forming galaxies at S=N 5:0 across the three clusters, all of them presenting coincidence with near-infrared detected counterparts in the HST images. None of the sources fall close to the lensing caustics, thus they are not strongly lensed. The observed 1.1mm flux densities for the total sample of galaxies range from 0.41 to 2.82 mJy, with observed effective radii spanning .00:005 to 00:037 00:021. The lensing-corrected sizes of the detected sources appear to be in the same range as those measured in brighter samples, albeit with possibly larger dispersion.

    KW - Galaxies: High-redshift

    KW - Gravitational lensing: Strong

    KW - Submillimeter: Galaxies

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    U2 - 10.1051/0004-6361/201628806

    DO - 10.1051/0004-6361/201628806

    M3 - Article

    VL - 597

    JO - Astronomy and Astrophysics

    JF - Astronomy and Astrophysics

    SN - 0004-6361

    M1 - A41

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    González-López J, Bauer FE, Romero-Cañizales C, Kneissl R, Villard E, Carvajal R y otros. The ALMA Frontier Fields Survey: I. 1.1 mm continuum detections in Abell 2744, MACS J0416.1-2403 and MACS J1149.5+2223. Astronomy and Astrophysics. 2017 ene 1;597. A41. Disponible desde, DOI: 10.1051/0004-6361/201628806