The H$\alpha$ luminosity and stellar mass dependent clustering of star-forming galaxies at $0.7<z<1.5$ with 3D-HST

Abstract

We present measurements of the dependence of the clustering amplitude of galaxies on their star formation rate (SFR) and stellar mass ($M_{\ast }$) at $0.7<z<1.5$ to assess the extent to which environment affects these properties. While these relations are well determined in the local universe, they are much more poorly known at earlier times. For this analysis we make use of the near-IR HST WFC3 grism spectroscopic data in the five CANDELS fields obtained as part of the 3D-HST survey. We make projected 2-point correlation function measurements using $\sim$6,000 galaxies with accurate redshifts, $M_{\ast }$ and H$\alpha$ luminosities. We find a strong dependence of clustering amplitude on H$\alpha$ luminosity and thus SFR. However, at fixed $M_{\ast }$, the clustering dependence on H$\alpha$ luminosity is largely eliminated. We model the clustering of these galaxies within the Halo Occupation Distribution framework using the conditional luminosity function model and the newly developed conditional stellar mass and H$\alpha$ luminosity distribution model. These show that galaxies with higher SFRs tend to live in higher mass haloes, but this is largely driven by the relationship between SFR and $M_{\ast }$. Finally, we show that the small residual correlation between clustering amplitude and H$\alpha$ luminosity at fixed $M_{\ast }$ is likely being driven by a broadening of the SFR-$M_{\ast }$ relationship for satellite galaxies.

References in corpus (15)

• The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
• The DESI Experiment Part I: Science,Targeting, and Survey Design
• Wide-Field InfrarRed Survey Telescope-Astrophysics Focused Telescope Assets WFIRST-AFTA 2015 Report
• 3D-HST WFC3-selected Photometric Catalogs in the Five CANDELS/3D-HST Fields: Photometry, Photometric Redshifts and Stellar Masses
• Why your model parameter confidences might be too optimistic -- unbiased estimation of the inverse covariance matrix
• Constraining the Low-Mass Slope of the Star Formation Sequence at 0.5<z<2.5
• The Herschel view of the dominant mode of galaxy growth from z=4 to the present day
• Galaxy Evolution from Halo Occupation Distribution Modeling of DEEP2 and SDSS Galaxy Clustering
• Galaxy Groups in the SDSS DR4: II. halo occupation statistics
• The Dawes Review 9: The role of cold gas stripping on the star formation quenching of satellite galaxies
• HiZELS: a high redshift survey of H-alpha emitters. I: the cosmic star-formation rate and clustering at z=2.23
• Interaction-induced star formation in a complete sample of 10^5 nearby star-forming galaxies
• A Consistent Study of Metallicity Evolution at 0.8 < z < 2.6
• The evolution of the star formation rate function in the EAGLE simulations: A comparison with UV, IR and H$\alpha$ observations from z ~ 8 to z ~ 0
• Testing galaxy formation models with galaxy stellar mass functions

Cited by in corpus (3)

• Do galaxy mergers prefer under-dense environments?
• Pulsar B1237+25 Aberration/Retardation Analysis from Decimeter to Decameter Wavelength: Challenge to "Radius-to-Frequency Mapping"
• DESI Emission-line Galaxies: Clustering Dependence on Stellar Mass and [OII] Luminosity