The Hα luminosity and star formation rate dependent clustering of galaxies at 0.7 < z < 1.5 from 3D-HST
Abstract
We present measurements of the dependence of the clustering amplitude of galaxies on their Hα luminosity, and hence star formation rate, at 0.7 < z < 1.5 to assess the extent to which environment effects these properties. While these relations are well determined in the local universe they are much more poorly know at earlier times. For this analysis we make use of near-IR HST WFC3 grism spectroscopic data in the five CANDELS fields obtained as part of the 3D-HST survey (Brammer et al. 2012; Skelton et al. 2014; Momcheva et al. 2016). We make projected 2-point correlation function measurements using ~6,000 galaxies with accurate redshifts, and Hα luminosity determined star formation rates. We find a strong dependence of clustering amplitude on Hα luminosity and star formation rate(SFR). Our sample is large enough that we can control for stellar mass and we show that there remains some residual dependence of clustering amplitude on SFR even when the mass is fixed.
- Publication:
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American Astronomical Society Meeting Abstracts #233
- Pub Date:
- January 2019
- Bibcode:
- 2019AAS...23314418C