The VLT LEGA-C spectroscopic survey: the physics of galaxies at a lookback time of 7 Gyr

A. van der Wel; K. Noeske; R. Bezanson; C. Pacifici; A. Gallazzi; M. Franx; J. C. Muñoz-Mateos; E. F. Bell; G. Brammer; S. Charlot; P. Chauké; I. Labbé; M. V. Maseda; A. Muzzin; H.-W. Rix; D. Sobral; J. van de Sande; P. G. van Dokkum; V. Wild; C. Wolf

doi:10.3847/0067-0049/223/2/29

The VLT LEGA-C spectroscopic survey: the physics of galaxies at a lookback time of 7 Gyr

A. van der Wel, K. Noeske, R. Bezanson, C. Pacifici, A. Gallazzi, M. Franx, J. C. Muñoz-Mateos, E. F. Bell, G. Brammer, S. Charlot, P. Chauké, I. Labbé, M. V. Maseda, A. Muzzin, H.-W. Rix, D. Sobral, J. van de Sande, P. G. van Dokkum, V. Wild, C. Wolf

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

The Large Early Galaxy Census (LEGA-C^a) is a Public Spectroscopic Survey of ∼ 3200 K-band selected galaxies at redshifts z=0.6-1.0 with stellar masses M_* > 10¹⁰M_sun, conducted with VIMOS on ESO's Very Large Telescope. The survey is embedded in the COSMOS field (R.A. =10h00; Dec.=+2deg). The 20-hour long integrations produce high-S/N continuum spectra that reveal ages, metallicities and velocity dispersions of the stellar populations. LEGA-C's unique combination of sample size and depth will enable us for the first time to map the stellar content at large look-back time, across galaxies of different types and star-formation activity. Observations started in December 2014 and are planned to be completed by mid 2018, with early data releases ofthe spectra and value-added products. In this paper we present thescience case, the observing strategy, an overview of the data reduction process and data products, and a first look at the relationship between galaxy structure and spectral properties, as it existed 7 Gyr ago.

Original language	English
Pages (from-to)	29
Journal	Astrophysical Journal Supplement Series
Volume	223
Issue number	2
DOIs	https://doi.org/10.3847/0067-0049/223/2/29
Publication status	Published - 22 Apr 2016

Keywords

Galaxies: evolution
Galaxies: fundamental parameters
Galaxies: general
Galaxies: stellar content

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10.3847/0067-0049/223/2/29

vanderWel_2016_VLTLEGAC_APJS_223_2_29
© 2016, The American Astronomical Society. This work is made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at iopscience.iop.org / https://dx.doi.org/10.3847/0067-0049/223/2/29
Final published version, 4.89 MB

http://adsabs.harvard.edu/abs/2016arXiv160305479V

Starting Grant - SEDmorph: Starting Grant 2012 SEDMorph
Wild, V. (PI)
European Research Council
1/09/12 → 31/01/18
Project: Standard

Large Early Galaxy Astrophysics Census, LEGA-C,
van der Wel, A. (Creator), Noeske, K. (Creator), Bezanson, R. (Creator), Pacifici, C. (Creator), Gallazzi, A. (Creator), Franx, M. (Creator), Muñoz-Mateos (J. C. Munoz-Mateos), J. C. (Creator), Bell, E. F. (Creator), Brammer, G. (Creator), Charlot, S. (Creator), Chauké (P. Chauke), P. (Creator), Labbé (I. Labbe), I. (Creator), Maseda, M. V. (Creator), Muzzin, A. (Creator), Rix (H. -W. Rix), H.-W. (Creator), Sobral, D. (Creator), van de Sande, J. (Creator), van Dokkum, P. G. (Creator), Wild, V. (Creator) & Wolf, C. (Creator), European Southern Observatory, 31 Aug 2016
http://archive.eso.org/cms/eso-archive-news/the-first-data-release-of-the-large-early-galaxy-census-lega-c-survey.html and one more link, http://www.mpia.de/home/legac/index.html (show fewer)
Dataset

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van der Wel, A., Noeske, K., Bezanson, R., Pacifici, C., Gallazzi, A., Franx, M., Muñoz-Mateos, J. C., Bell, E. F., Brammer, G., Charlot, S., Chauké, P., Labbé, I., Maseda, M. V., Muzzin, A., Rix, H.-W., Sobral, D., van de Sande, J., van Dokkum, P. G., Wild, V., & Wolf, C. (2016). The VLT LEGA-C spectroscopic survey: the physics of galaxies at a lookback time of 7 Gyr. Astrophysical Journal Supplement Series, 223(2), 29. https://doi.org/10.3847/0067-0049/223/2/29

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title = "The VLT LEGA-C spectroscopic survey: the physics of galaxies at a lookback time of 7 Gyr",

abstract = "The Large Early Galaxy Census (LEGA-Ca) is a Public Spectroscopic Survey of ∼ 3200 K-band selected galaxies at redshifts z=0.6-1.0 with stellar masses M* > 1010M_sun, conducted with VIMOS on ESO's Very Large Telescope. The survey is embedded in the COSMOS field (R.A. =10h00; Dec.=+2deg). The 20-hour long integrations produce high-S/N continuum spectra that reveal ages, metallicities and velocity dispersions of the stellar populations. LEGA-C's unique combination of sample size and depth will enable us for the first time to map the stellar content at large look-back time, across galaxies of different types and star-formation activity. Observations started in December 2014 and are planned to be completed by mid 2018, with early data releases ofthe spectra and value-added products. In this paper we present thescience case, the observing strategy, an overview of the data reduction process and data products, and a first look at the relationship between galaxy structure and spectral properties, as it existed 7 Gyr ago.",

keywords = "Galaxies: evolution, Galaxies: fundamental parameters, Galaxies: general, Galaxies: stellar content",

author = "{van der Wel}, A. and K. Noeske and R. Bezanson and C. Pacifici and A. Gallazzi and M. Franx and Mu{\~n}oz-Mateos, {J. C.} and Bell, {E. F.} and G. Brammer and S. Charlot and P. Chauk{\'e} and I. Labb{\'e} and Maseda, {M. V.} and A. Muzzin and H.-W. Rix and D. Sobral and {van de Sande}, J. and {van Dokkum}, {P. G.} and V. Wild and C. Wolf",

year = "2016",

month = apr,

day = "22",

doi = "10.3847/0067-0049/223/2/29",

language = "English",

volume = "223",

pages = "29",

journal = "Astrophysical Journal Supplement Series",

issn = "0067-0049",

publisher = "American Astronomical Society",

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van der Wel, A, Noeske, K, Bezanson, R, Pacifici, C, Gallazzi, A, Franx, M, Muñoz-Mateos, JC, Bell, EF, Brammer, G, Charlot, S, Chauké, P, Labbé, I, Maseda, MV, Muzzin, A, Rix, H-W, Sobral, D, van de Sande, J, van Dokkum, PG, Wild, V & Wolf, C 2016, 'The VLT LEGA-C spectroscopic survey: the physics of galaxies at a lookback time of 7 Gyr', Astrophysical Journal Supplement Series, vol. 223, no. 2, pp. 29. https://doi.org/10.3847/0067-0049/223/2/29

TY - JOUR

T1 - The VLT LEGA-C spectroscopic survey

T2 - the physics of galaxies at a lookback time of 7 Gyr

AU - van der Wel, A.

AU - Noeske, K.

AU - Bezanson, R.

AU - Pacifici, C.

AU - Gallazzi, A.

AU - Franx, M.

AU - Muñoz-Mateos, J. C.

AU - Bell, E. F.

AU - Brammer, G.

AU - Charlot, S.

AU - Chauké, P.

AU - Labbé, I.

AU - Maseda, M. V.

AU - Muzzin, A.

AU - Rix, H.-W.

AU - Sobral, D.

AU - van de Sande, J.

AU - van Dokkum, P. G.

AU - Wild, V.

AU - Wolf, C.

PY - 2016/4/22

Y1 - 2016/4/22

N2 - The Large Early Galaxy Census (LEGA-Ca) is a Public Spectroscopic Survey of ∼ 3200 K-band selected galaxies at redshifts z=0.6-1.0 with stellar masses M* > 1010M_sun, conducted with VIMOS on ESO's Very Large Telescope. The survey is embedded in the COSMOS field (R.A. =10h00; Dec.=+2deg). The 20-hour long integrations produce high-S/N continuum spectra that reveal ages, metallicities and velocity dispersions of the stellar populations. LEGA-C's unique combination of sample size and depth will enable us for the first time to map the stellar content at large look-back time, across galaxies of different types and star-formation activity. Observations started in December 2014 and are planned to be completed by mid 2018, with early data releases ofthe spectra and value-added products. In this paper we present thescience case, the observing strategy, an overview of the data reduction process and data products, and a first look at the relationship between galaxy structure and spectral properties, as it existed 7 Gyr ago.

AB - The Large Early Galaxy Census (LEGA-Ca) is a Public Spectroscopic Survey of ∼ 3200 K-band selected galaxies at redshifts z=0.6-1.0 with stellar masses M* > 1010M_sun, conducted with VIMOS on ESO's Very Large Telescope. The survey is embedded in the COSMOS field (R.A. =10h00; Dec.=+2deg). The 20-hour long integrations produce high-S/N continuum spectra that reveal ages, metallicities and velocity dispersions of the stellar populations. LEGA-C's unique combination of sample size and depth will enable us for the first time to map the stellar content at large look-back time, across galaxies of different types and star-formation activity. Observations started in December 2014 and are planned to be completed by mid 2018, with early data releases ofthe spectra and value-added products. In this paper we present thescience case, the observing strategy, an overview of the data reduction process and data products, and a first look at the relationship between galaxy structure and spectral properties, as it existed 7 Gyr ago.

KW - Galaxies: evolution

KW - Galaxies: fundamental parameters

KW - Galaxies: general

KW - Galaxies: stellar content

U2 - 10.3847/0067-0049/223/2/29

DO - 10.3847/0067-0049/223/2/29

M3 - Article

SN - 0067-0049

VL - 223

SP - 29

JO - Astrophysical Journal Supplement Series

JF - Astrophysical Journal Supplement Series

IS - 2

ER -

The VLT LEGA-C spectroscopic survey: the physics of galaxies at a lookback time of 7 Gyr

Abstract

Keywords

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Projects

Starting Grant - SEDmorph: Starting Grant 2012 SEDMorph

Datasets

Large Early Galaxy Astrophysics Census, LEGA-C,

Cite this