%AGreene, Jenny%AGreco, Johnny%AGoulding, Andy%AHuang 黄, Song%AKado-Fong, Erin%ADanieli, Shany%ALi 李, Jiaxuan%AKim, Ji%AKomiyama, Yutaka%ALeauthaud, Alexie%AMacArthur, Lauren%ASifón, Cristóbal%BJournal Name: The Astrophysical Journal; Journal Volume: 933; Journal Issue: 2; Related Information: CHORUS Timestamp: 2024-01-16 14:38:50 %D2022%IDOI PREFIX: 10.3847 %JJournal Name: The Astrophysical Journal; Journal Volume: 933; Journal Issue: 2; Related Information: CHORUS Timestamp: 2024-01-16 14:38:50 %K %MOSTI ID: 10368996 %PMedium: X; Size: Article No. 150 %TThe Nature of Low-surface-brightness Galaxies in the Hyper Suprime-Cam Survey %XAbstract

We present the statistical redshift distribution of a large sample of low-surface-brightness (LSB) galaxies identified in the first 200 deg2of the Hyper Suprime-Cam Strategic Survey Program. Through cross-correlation with the NASA–SDSS Atlas, we find that the majority of objects lie withinz< 0.15 or ∼500 Mpc, yielding a mass range ofM*≈ 107−109Mand a size range ofreff,g≈ 1−8 kpc. We find a peak in the distance distribution within 100 Mpc, corresponding mostly to ∼107Mgalaxies that fall on the known mass–size relation. There is also a tail in the redshift distribution out toz≈ 0.15, comprising more massive (M*= 108− 109M) galaxies at the larger end of our size range. We see tentative evidence that at the higher-mass end (M*> 108M), the LSB galaxies do not form a smooth extension of the mass–size relation of higher-surface-brightness galaxies, perhaps suggesting that the LSB galaxy population is distinct in its formation path.

%0Journal Article