Astrophysical: Galaxies

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    Searching for High Redshift Clusters
    Distant clusters of galaxies provide a powerful method to study the formation and evolution of galaxies, and large scale structure of the Universe. However, the...
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    Searching for molecular gas inflows and outflows in the nuclear regions of five Seyfert galaxies
    Active galactic nucleus (AGN) driven outflows are believed to play an important role in regulating the growth of galaxies, mostly via negative feedback. However...
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    Searching for star-forming galaxies in the Fornax and Hydra clusters
    Context. The formation and evolution of dwarf galaxies is relatively difficult to understand because of their faint emission in all regimes that require large...
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    Searching for the orbital period of the ultraluminous X-ray source NGC 1313 X-2
    We analysed the longest phase-connected photometric data set available for NGC 1313 X-2, looking for the ˜6-day modulation reported by Liu et al.. The folded B...
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    Searching for Tidal Remnants in the Milky Way: Photometric Survey of Globular Clusters
    The picture of building the Milky Way halo from the merger of protogalactic fragments is considered the local manifestation of the hierarchical galaxy formation...
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    Secondary halo bias through cosmic time. I. Scaling relations and the connection with the cosmic web
    Context. The spatial distribution of dark matter halos carries cosmological and astrophysical information. Cosmological information can be considered to be...
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    Secondary Infall in the Seyfert’s Sextet: A Plausible Way Out of the Short Crossing Time Paradox
    We used integral field spectroscopy from CALIFA DR3 and multiwavelength publicly available data to investigate the star formation histories of galaxies in the...
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    Secular Evolution and a Non-evolving Black-hole-to-galaxy Mass Ratio in the Last 7 Gyr
    We present new constraints on the ratio of black hole (BH) mass to total galaxy stellar mass at 0.3 z 0.9 for a sample of 32 type-1 active galactic nuclei...
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    Secular- and merger-built bulges in barred galaxies
    Context. Historically, galaxy bulges were thought to be single-component objects at the center of galaxies. However, this picture is now questioned since...