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astro-ph.GA2026
Interaction-induced HI gas concentration with centrally-enhanced star formation in ALFALFA-SDSS galaxies
Yanhan Guo, Cheng Li
We present a statistical analysis for the interaction-induced central concentration of HI gas distributions and its connection with interaction-induced central star formation enhan…
astro-ph.GA2025
Lopsided and Bulging Distribution of Satellites around Paired Halos. I. Observational Measurements and Comparison with Halo-based Models
Yanhan Guo, Qinglin Ma, Cheng Li
We investigate the angular distribution of satellite galaxies in and around pairs of galaxy groups in SDSS and compare the results with the satellite distribution in pairs of dark…