JADES: The incidence rate and properties of galactic outflows in low-mass galaxies across 3 < z < 9

被引：40

作者：

Carniani, Stefano ^{[1
]}

Venturi, Giacomo ^{[1
]}

Parlanti, Eleonora ^{[1
]}

de Graaff, Anna ^{[2
]}

Maiolino, Roberto ^{[3
,4
,5
]}

Arribas, Santiago ^{[6
]}

Bonaventura, Nina ^{[7
,8
,9
]}

Boyett, Kristan ^{[10
,11
]}

Bunker, Andrew J. ^{[12
]}

Cameron, Alex J. ^{[12
]}

Charlot, Stephane ^{[13
]}

Chevallard, Jacopo ^{[12
]}

Curti, Mirko ^{[3
,4
,14
]}

Curtis-Lake, Emma ^{[15
]}

Eisenstein, Daniel J. ^{[16
]}

Giardino, Giovanna ^{[17
]}

Hausen, Ryan ^{[18
]}

Kumari, Nimisha ^{[19
]}

Maseda, Michael V. ^{[20
]}

Nelson, Erica ^{[21
]}

Perna, Michele ^{[6
]}

Rix, Hans-Walter ^{[2
]}

Robertson, Brant ^{[22
]}

Del Pino, Bruno Rodriguez ^{[6
]}

Sandles, Lester ^{[3
,4
]}

Scholtz, Jan ^{[3
,4
]}

Simmonds, Charlotte ^{[3
,4
]}

Smit, Renske ^{[23
]}

Tacchella, Sandro ^{[3
,4
]}

Ubler, Hannah ^{[3
,4
]}

Williams, Christina C. ^{[24
]}

Willott, Chris ^{[25
]}

Witstok, Joris ^{[3
,4
]}

机构：

[1] Scuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, Italy

[2] Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany

[3] Univ Cambridge, Kavli Inst Cosmol, Madingley Rd, Cambridge CB3 OHA, England

[4] Univ Cambridge, Cavendish Lab, Astrophys Grp, 19 JJ Thomson Ave, Cambridge CB3 OHE, England

[5] UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England

[6] CSIC INTA, Ctr Astrobiol CAB, Ctra Ajalvir Km 4, Torrejon De Ardoz 28850, Madrid, Spain

[7] Cosm Dawn Ctr DAWN, Copenhagen, Denmark

[8] Univ Copenhagen, Niels Bohr Inst, Jagtvej 128, DK-2200 Copenhagen, Denmark

[9] Univ Arizona, Steward Observ, 933 N Cherry Ave, Tucson, AZ 85721 USA

[10] Univ Melbourne, Sch Phys, Parkville, Vic 3010, Australia

[11] All Sky Astrophys 3 Dimens ASTRO 3D, ARC Ctr Excellence, Stromlo, Australia

[12] Univ Oxford, Dept Phys, Denys Wilkinson Bldg,Keble Rd, Oxford OX1 3RH, England

[13] Sorbonne Univ, Inst Astrophys Paris, CNRS, UMR 7095, 98 Bis Bd Arago, F-75014 Paris, France

[14] European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany

[15] Univ Hertfordshire, Ctr Astrophys Res, Dept Phys Astron & Math, Hatfield AL10 9AB, England

[16] Ctr Astrophys Harvard & Smithsonian, 60 Garden St, Cambridge, MA 02138 USA

[17] ATG Europe European Space Agcy, ESTEC, Noordwijk, Netherlands

[18] Johns Hopkins Univ, Dept Phys & Astron, 3400 N Charles St, Baltimore, MD 21218 USA

[19] Space Telescope Sci Inst, AURA European Space Agcy, 3700 San Martin Dr, Baltimore, MD 21210 USA

[20] Univ Wisconsin Madison, Dept Astron, 475 N Charter St, Madison, WI 53706 USA

[21] Univ Colorado, Dept Astrophys & Planetary Sci, Boulder, CO 80309 USA

[22] Univ Calif Santa Cruz, Dept Astron & Astrophys, 1156 High St, Santa Cruz, CA 96054 USA

[23] Liverpool John Moores Univ, Astrophys Res Inst, 146 Brownlow Hill, Liverpool L3 5RF, England

[24] NSFs Natl Opt Infrared Astron Res Lab, 950 North Cherry Ave, Tucson, AZ 85719 USA

[25] NRC Herzberg, 5071 West Saanich Rd, Victoria, BC V9E 2E7, Canada

来源：

ASTRONOMY & ASTROPHYSICS | 2024年 / 685卷

基金：

欧洲研究理事会; 新加坡国家研究基金会; 澳大利亚研究理事会; 英国科学技术设施理事会;

关键词：

ISM: jets and outflows; galaxies: evolution; galaxies: high-redshift; galaxies: ISM; galaxies: kinematics and dynamics; STAR-FORMING GALAXIES; IONIZED-GAS OUTFLOWS; FORMATION-DRIVEN OUTFLOWS; SINS/ZC-SINF SURVEY; BLACK-HOLES; AGN FEEDBACK; COSMOLOGICAL SIMULATIONS; FORMATION EFFICIENCY; MOLECULAR OUTFLOWS; SCALING RELATIONS;

D O I：

10.1051/0004-6361/202347230

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the incidence and properties of ionised gas outflows in a sample of 52 galaxies with stellar masses between 10(7) M-circle dot and 10(9) M-circle dot observed with ultra-deep JWST/NIRSpec MSA spectroscopy as part of the JWST Advanced Deep Extragalactic Survey (JADES). The high-spectral resolution (R2700) NIRSpec observations allowed us to identify for the first time the potential signature of outflows in the rest-frame optical nebular lines in low-mass galaxies at z > 4. The incidence fraction of ionised outflows, traced by broad components, is about 25-40%, depending on the intensity of the emission lines. The low incidence fraction might be due to both the sensitivity limit and the fact that outflows are not isotropic, but have a limited opening angle, which only results in detection when this is directed toward our line of sight. Evidence for outflows increases slightly with stellar mass and star formation rate. The median velocity and mass-loading factor (i.e. the ratio of the mass outflow rate and star formation rate) of the outflowing ionised gas are 350 km s(-1) and eta = 2.0(-1.5)(+1.6), respectively. These are 1.5 and 100 times higher than the typical values observed in local dwarf galaxies. Some of these high-redshift outflows can escape the gravitational potential of the galaxy and dark matter halo and enrich the circumgalactic medium and possibly even the intergalactic medium. Our results indicate that outflows can significantly impact the star formation activity in low-mass galaxies within the first 2 Gyr of the Universe.

引用

页数：18

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JADES: The incidence rate and properties of galactic outflows in low-mass galaxies across 3 &lt; z &lt; 9

JADES: The incidence rate and properties of galactic outflows in low-mass galaxies across 3 < z < 9