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87 papers · 2 filters
HIFLUGCS: Galaxy cluster scaling relations between X-ray luminosity, gas mass, cluster radius, and velocity dispersion
Y. -Y. Zhang, H. Andernach, C. A. Caretta +5
We present relations between X-ray luminosity and velocity dispersion (L-sigma), X-ray luminosity and gas mass (L-Mgas), and cluster radius and velocity dispersion (r500-sigma) for…
Modelling the evolution of galaxies as a function of environment
Gabriella De Lucia
In this review, I provide an overview of theoretical aspects related to the evolution of galaxies as a function of environment. I discuss the main physical processes at play, their…
A tale of two GRB-SNe at a common redshift of z = 0.54
Z. Cano, D. Bersier, C. Guidorzi +71
We present ground-based and HST optical observations of the optical transients (OTs) of long-duration Gamma Ray Bursts (GRBs) 060729 and 090618, both at a redshift of z = 0.54. For…
Searching for Chameleon-like Scalar Fields
S. A. Levshakov, P. Molaro, M. G. Kozlov +5
Using the 32-m Medicina, 45-m Nobeyama, and 100-m Effelsberg telescopes we found a statistically significant velocity offset Delta V = 27 +/- 3 m/s (1sigma) between the inversion t…
Spectroscopic confirmation of two Lyman break galaxies at redshift beyond 7
E. Vanzella, L. Pentericci, A. Fontana +12
We report the spectroscopic confirmation of two Lyman break galaxies at redshift > 7. The galaxies were observed as part of an ultra-deep spectroscopic campaign with FORS2 at the E…
Studying the Warm-Hot Intergalactic Medium in Emission
Yoh Takei, Eugenio Ursino, Enzo Branchini +14
We assess the possibility to detect the warm-hot intergalactic medium (WHIM) in emission and to characterize its physical conditions and spatial distribution through spatially reso…