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30 papers · 2 filters
Planck intermediate results. XXXIII. Signature of the magnetic field geometry of interstellar filaments in dust polarization maps
Planck Collaboration, P. A. R. Ade, N. Aghanim +187
Planck observations at 353GHz provide the first fully-sampled maps of the polarized dust emission towards interstellar filaments and their backgrounds. The polarization data provid…
Clustering of gamma-ray selected 2LAC Fermi Blazars
Viola Allevato, Alexis Finoguenov, Nico Cappelluti
We present the first measurement of the projected correlation function of 485 gamma-ray selected Blazars, divided in 175 BLLacertae (BL Lacs) and 310 Flat Spectrum Radio Quasars (F…
Clustering properties of moderate luminosity X-ray selected Type 1 and Type 2 AGN at z~3
V. Allevato, A. Finoguenov, F. Civano +11
We investigate, for the first time at z~3, the clustering properties of 189 Type 1 and 157 Type 2 X-ray active galactic nuclei (AGN) of moderate luminosity (log<Lbol> = 45.3 erg/s)…
The evolution of star formation activity in galaxy groups
G. Erfanianfar, P. Popesso, A. Finoguenov +30
We study the evolution of the total star formation (SF) activity, total stellar mass and halo occupation distribution in massive halos by using one of the largest X-ray selected sa…
Evolution of the galaxy luminosity function in progenitors of fossil groups
G. Gozaliasl, H. G. Khosroshahi, A. A. Dariush +3
Using the semi-analytic models based on the Millennium simulation, we trace back the evolution of the luminosity function of galaxies residing in progenitors of groups classified b…
The Zurich Environmental Study (ZENS) of Galaxies in Groups along the Cosmic Web. V. Properties and Frequency of Merging Satellites and Centrals in Different Environments
A. Pipino, A. Cibinel, S. Tacchella +6
We use the Zurich ENvironmental Study (ZENS) database to investigate the environmental dependence of the merger fraction and merging galaxy properties in a sample of ~1300 grou…