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Mass classification of dark matter perturbers of stellar tidal streams
Francesco Montanari, Juan García-Bellido
Stellar streams formed by tidal stripping of progenitors orbiting around the Milky Way are expected to be perturbed by encounters with dark matter subhalos. Recent studies have sho…
Chandra centres for COSMOS X-ray galaxy groups: Differences in stellar properties between central dominant and offset brightest group galaxies
Ghassem Gozaliasl, Alexis Finoguenov, Masayuki Tanaka +24
We present the results of a search for galaxy clusters and groups in the square degree of the COSMOS field using all available X-ray observations from the XMM-Newton and Ch…
Brightest group galaxies-II: the relative contribution of BGGs to the total baryon content of groups at z<1.3
Ghassem Gozaliasl, Alexis Finoguenov, Habib G. Khosroshahi +6
We performed a detailed study of the evolution of the star formation rate (SFR) and stellar mass of the brightest group galaxies (BGGs) and their relative contribution to the total…