2016/03/11 by Yubin Li, Li, Yubin, Xianzhong Zheng +3
Earth and Planetary Sciences · Engineering · Environmental Science · #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Meteorological Phenomena and Simulations #Remote Sensing and LiDAR Applications #Satellite Image Processing and Photogrammetry
paper · pdf · doi:10.48550/arxiv.1603.03497
openalex publication_date 2016/03/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We examine the evolution of dust attenuation curve using a sample of 9504 disk star-forming galaxies (SFGs) selected from the CANDELS and 3D-HST surveys and a new technique relying on the fact that disk SFGs of similar stellar masses at the same cosmic epoch are statistically identical in stellar populations. We attribute the discrepancy in median magnitude between face-on (b/a>0.7) and edge-on (b/a<=0.4) subsamples solely to dust attenuation, and obtain the average attenuation in the rest-frame UV and optical as functions of stellar mass and redshift out to z=2.5. Our results show that the attenuation curve becomes remarkably flatter at increasing redshift for both massive and low-mass disk SFGs, and remains likely unchanged with galaxy stellar mass at a fixed epoch within uncertainties. Compared with the Calzetti law, our dust attenuation curves appear to be slightly steeper at 0.5