The effect of cosmic web filaments on galaxy properties in the RESOLVE and ECO surveys

被引：1
|
作者：
Hoosain, Munira [1 ,2 ]
Blyth, Sarah-L [1 ]
Skelton, Rosalind E. [2 ]
Kannappan, Sheila J. [3 ]
Stark, David, V [4 ]
Eckert, Kathleen D. [3 ]
Hutchens, Zackary L. [3 ]
Carr, Derrick S. [3 ]
Kraljic, Katarina [5 ]
机构：
[1] Univ Cape Town, Dept Astron, Private Bag X3, ZA-7701 Cape Town, South Africa
[2] South African Astron Observ, 1 Observ Rd, ZA-7925 Cape Town, South Africa
[3] Univ N Carolina, Dept Phys & Astron, CB3255, Chapel Hill, NC 27599 USA
[4] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA
[5] Univ Strasbourg, CNRS, UMR 7550, Observ Astron Strasbourg, 11 Rue Univ, F-67000 Strasbourg, France
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2024年 / 528卷 / 03期
基金：
美国国家科学基金会;
关键词：
galaxies: evolution; galaxies: groups: general; (cosmology:) large-scale structure of Universe; DIGITAL SKY SURVEY; LARGE-SCALE STRUCTURE; FAST ALPHA SURVEY; REDSHIFT SURVEY; STAR-FORMATION; H I; ANGULAR-MOMENTUM; SPIN ALIGNMENT; GAS FRACTIONS; STELLAR MASS;
D O I：
10.1093/mnras/stae174
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Galaxy environment plays an important role in driving the transformation of galaxies from blue and star forming to red and quenched. Recent works have focused on the role of cosmic web filaments in galaxy evolution and have suggested that stellar mass segregation, quenching of star formation, and gas-stripping may occur within filaments. We study the relationship between distance to filament and the stellar mass, colour, and H i gas content of galaxies using data from the REsolved Spectroscopy of a Local VolumE survey and Environmental COntext (ECO) catalogue, two overlapping census-style, volume-complete surveys. We use the Discrete Persistence Structures Extractor to identify cosmic web filaments over the full ECO area. We find that galaxies close to filaments have higher stellar masses, in agreement with previous results. Controlling for stellar mass, we find that galaxies also have redder colours and are more gas poor closer to filaments. When accounting for group membership and halo mass, we find that these trends in colour and gas content are dominated by the increasing prevalence of galaxy group environments close to filaments, particularly for high-halo mass and low-stellar mass galaxies. Filaments have an additional small effect on the gas content of galaxies in low-mass haloes, possibly due to cosmic web stripping.
引用
收藏
页码：4139 / 4159
页数：21
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