Large-scale star-formation-driven outflows at 1 < z < 2 in the 3D-HST survey

Britt F. Lundgren; Gabriel Brammer; Pieter Van Dokkum; Rachel Bezanson; Marijn Franx; Mattia Fumagalli; Ivelina Momcheva; Erica Nelson; Rosalind E. Skelton; David Wake; Katherine Whitaker; Elizabete Da Cunha; Dawn K. Erb; Xiaohui Fan; Mariska Kriek; Ivo Labbé; Danilo Marchesini; Shannon Patel; Hans Walter Rix; Kasper Schmidt; Arjen Van Der Wel

doi:10.1088/0004-637X/760/1/49

Large-scale star-formation-driven outflows at 1 < z < 2 in the 3D-HST survey

Britt F. Lundgren, Gabriel Brammer, Pieter Van Dokkum, Rachel Bezanson, Marijn Franx, Mattia Fumagalli, Ivelina Momcheva, Erica Nelson, Rosalind E. Skelton, David Wake, Katherine Whitaker, Elizabete Da Cunha, Dawn K. Erb, Xiaohui Fan, Mariska Kriek, Ivo Labbé, Danilo Marchesini, Shannon Patel, Hans Walter Rix, Kasper SchmidtArjen Van Der Wel

Astronomy

Research output: Contribution to journal › Review article › peer-review

26 Scopus citations

Abstract

We present evidence of large-scale outflows from three low-mass (log(M _*/M_·) 9.75) star-forming (SFR>4 M _·yr^-1) galaxies observed at z = 1.24, z = 1.35, and z = 1.75 in the 3D-HST Survey. Each of these galaxies is located within a projected physical distance of 60kpc around the sight line to the quasar SDSSJ123622.93+621526.6, which exhibits well-separated strong (W ^λ2796 r g∼ 0.8 Å) Mg II absorption systems matching precisely to the redshifts of the three galaxies. We derive the star formation surface densities from the Hα emission in the WFC3 G141 grism observations for the galaxies and find that in each case the star formation surface density well exceeds 0.1 M_·yr^-1kpc^-2, the typical threshold for starburst galaxies in the local universe. From a small but complete parallel census of the 0.65 < z < 2.6 galaxies with H ₁₄₀ ≲ 24 proximate to the quasar sight line, we detect Mg II absorption associated with galaxies extending to physical distances of 130kpc. We determine that the W_r > 0.8Å Mg II covering fraction of star-forming galaxies at 1 < z < 2 may be as large as unity on scales extending to at least 60kpc, providing early constraints on the typical extent of starburst-driven winds around galaxies at this redshift. Our observations additionally suggest that the azimuthal distribution of W_r > 0.4Å Mg II absorbing gas around star-forming galaxies may evolve from z ∼ 2 to the present, consistent with recent observations of an increasing collimation of star-formation-driven outflows with time from z 3.

Original language	English (US)
Article number	49
Journal	Astrophysical Journal
Volume	760
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/760/1/49
State	Published - Nov 20 2012

Keywords

galaxies: evolution
galaxies: general
quasars: absorption lines
quasars: general

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1088/0004-637X/760/1/49

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Lundgren, B. F., Brammer, G., Van Dokkum, P., Bezanson, R., Franx, M., Fumagalli, M., Momcheva, I., Nelson, E., Skelton, R. E., Wake, D., Whitaker, K., Da Cunha, E., Erb, D. K., Fan, X., Kriek, M., Labbé, I., Marchesini, D., Patel, S., Rix, H. W., ... Van Der Wel, A. (2012). Large-scale star-formation-driven outflows at 1 < z < 2 in the 3D-HST survey. Astrophysical Journal, 760(1), Article 49. https://doi.org/10.1088/0004-637X/760/1/49

Lundgren, BF, Brammer, G, Van Dokkum, P, Bezanson, R, Franx, M, Fumagalli, M, Momcheva, I, Nelson, E, Skelton, RE, Wake, D, Whitaker, K, Da Cunha, E, Erb, DK, Fan, X, Kriek, M, Labbé, I, Marchesini, D, Patel, S, Rix, HW, Schmidt, K & Van Der Wel, A 2012, 'Large-scale star-formation-driven outflows at 1 < z < 2 in the 3D-HST survey', Astrophysical Journal, vol. 760, no. 1, 49. https://doi.org/10.1088/0004-637X/760/1/49

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title = "Large-scale star-formation-driven outflows at 1 < z < 2 in the 3D-HST survey",

abstract = "We present evidence of large-scale outflows from three low-mass (log(M */M·) 9.75) star-forming (SFR>4 M ·yr-1) galaxies observed at z = 1.24, z = 1.35, and z = 1.75 in the 3D-HST Survey. Each of these galaxies is located within a projected physical distance of 60kpc around the sight line to the quasar SDSSJ123622.93+621526.6, which exhibits well-separated strong (W λ2796 r g∼ 0.8 {\AA}) Mg II absorption systems matching precisely to the redshifts of the three galaxies. We derive the star formation surface densities from the Hα emission in the WFC3 G141 grism observations for the galaxies and find that in each case the star formation surface density well exceeds 0.1 M·yr-1kpc-2, the typical threshold for starburst galaxies in the local universe. From a small but complete parallel census of the 0.65 < z < 2.6 galaxies with H 140 ≲ 24 proximate to the quasar sight line, we detect Mg II absorption associated with galaxies extending to physical distances of 130kpc. We determine that the Wr > 0.8{\AA} Mg II covering fraction of star-forming galaxies at 1 < z < 2 may be as large as unity on scales extending to at least 60kpc, providing early constraints on the typical extent of starburst-driven winds around galaxies at this redshift. Our observations additionally suggest that the azimuthal distribution of Wr > 0.4{\AA} Mg II absorbing gas around star-forming galaxies may evolve from z ∼ 2 to the present, consistent with recent observations of an increasing collimation of star-formation-driven outflows with time from z 3.",

keywords = "galaxies: evolution, galaxies: general, quasars: absorption lines, quasars: general",

author = "Lundgren, {Britt F.} and Gabriel Brammer and {Van Dokkum}, Pieter and Rachel Bezanson and Marijn Franx and Mattia Fumagalli and Ivelina Momcheva and Erica Nelson and Skelton, {Rosalind E.} and David Wake and Katherine Whitaker and {Da Cunha}, Elizabete and Erb, {Dawn K.} and Xiaohui Fan and Mariska Kriek and Ivo Labb{\'e} and Danilo Marchesini and Shannon Patel and Rix, {Hans Walter} and Kasper Schmidt and {Van Der Wel}, Arjen",

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language = "English (US)",

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T1 - Large-scale star-formation-driven outflows at 1 < z < 2 in the 3D-HST survey

AU - Lundgren, Britt F.

AU - Brammer, Gabriel

AU - Van Dokkum, Pieter

AU - Bezanson, Rachel

AU - Franx, Marijn

AU - Fumagalli, Mattia

AU - Momcheva, Ivelina

AU - Nelson, Erica

AU - Skelton, Rosalind E.

AU - Wake, David

AU - Whitaker, Katherine

AU - Da Cunha, Elizabete

AU - Erb, Dawn K.

AU - Fan, Xiaohui

AU - Kriek, Mariska

AU - Labbé, Ivo

AU - Marchesini, Danilo

AU - Patel, Shannon

AU - Rix, Hans Walter

AU - Schmidt, Kasper

AU - Van Der Wel, Arjen

PY - 2012/11/20

Y1 - 2012/11/20

N2 - We present evidence of large-scale outflows from three low-mass (log(M */M·) 9.75) star-forming (SFR>4 M ·yr-1) galaxies observed at z = 1.24, z = 1.35, and z = 1.75 in the 3D-HST Survey. Each of these galaxies is located within a projected physical distance of 60kpc around the sight line to the quasar SDSSJ123622.93+621526.6, which exhibits well-separated strong (W λ2796 r g∼ 0.8 Å) Mg II absorption systems matching precisely to the redshifts of the three galaxies. We derive the star formation surface densities from the Hα emission in the WFC3 G141 grism observations for the galaxies and find that in each case the star formation surface density well exceeds 0.1 M·yr-1kpc-2, the typical threshold for starburst galaxies in the local universe. From a small but complete parallel census of the 0.65 < z < 2.6 galaxies with H 140 ≲ 24 proximate to the quasar sight line, we detect Mg II absorption associated with galaxies extending to physical distances of 130kpc. We determine that the Wr > 0.8Å Mg II covering fraction of star-forming galaxies at 1 < z < 2 may be as large as unity on scales extending to at least 60kpc, providing early constraints on the typical extent of starburst-driven winds around galaxies at this redshift. Our observations additionally suggest that the azimuthal distribution of Wr > 0.4Å Mg II absorbing gas around star-forming galaxies may evolve from z ∼ 2 to the present, consistent with recent observations of an increasing collimation of star-formation-driven outflows with time from z 3.

AB - We present evidence of large-scale outflows from three low-mass (log(M */M·) 9.75) star-forming (SFR>4 M ·yr-1) galaxies observed at z = 1.24, z = 1.35, and z = 1.75 in the 3D-HST Survey. Each of these galaxies is located within a projected physical distance of 60kpc around the sight line to the quasar SDSSJ123622.93+621526.6, which exhibits well-separated strong (W λ2796 r g∼ 0.8 Å) Mg II absorption systems matching precisely to the redshifts of the three galaxies. We derive the star formation surface densities from the Hα emission in the WFC3 G141 grism observations for the galaxies and find that in each case the star formation surface density well exceeds 0.1 M·yr-1kpc-2, the typical threshold for starburst galaxies in the local universe. From a small but complete parallel census of the 0.65 < z < 2.6 galaxies with H 140 ≲ 24 proximate to the quasar sight line, we detect Mg II absorption associated with galaxies extending to physical distances of 130kpc. We determine that the Wr > 0.8Å Mg II covering fraction of star-forming galaxies at 1 < z < 2 may be as large as unity on scales extending to at least 60kpc, providing early constraints on the typical extent of starburst-driven winds around galaxies at this redshift. Our observations additionally suggest that the azimuthal distribution of Wr > 0.4Å Mg II absorbing gas around star-forming galaxies may evolve from z ∼ 2 to the present, consistent with recent observations of an increasing collimation of star-formation-driven outflows with time from z 3.

KW - galaxies: evolution

KW - galaxies: general

KW - quasars: absorption lines

KW - quasars: general

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U2 - 10.1088/0004-637X/760/1/49

DO - 10.1088/0004-637X/760/1/49

M3 - Review article

AN - SCOPUS:84868563356

SN - 0004-637X

VL - 760

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

M1 - 49

ER -

Large-scale star-formation-driven outflows at 1 < z < 2 in the 3D-HST survey

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