Dear Colleagues,
on Tuesday, April the 28th, we will have a journal club at 12:40.
I will continue with discussion of some observational aspects of
cosmology. On the previous occasion, an interest was expressed towards
the way the actual measurements on the Bullet Cluster have been
performed. First, I will briefly comment on that based on the following
references:
M. Markevitch. Chandra observation of the most interesting cluster in
the Universe.
http://arxiv.org/abs/astro-ph/0511345
M. Bradac, D. Clowe, A.H. Gonzalez, Ph. Marshall, W. Forman, Ch. Jones,
M. Markevitch, S. Randall, T. Schrabback, D. Zaritsky. Strong and weak
lensing united III: Measuring the mass distribution of the merging
galaxy cluster 1E0657-56.
http://arxiv.org/abs/astro-ph/0608408
G.R. Farrar, R.A. Rosen. A New Force in the Dark Sector?
http://arxiv.org/abs/astro-ph/0610298
Then I propose to discuss very recent (and relevant) observations of
another cluster:
R. Massey, L. Williams, R. Smit, M. Swinbank, Th. Kitching, D. Harvey,
M. Jauzac, H. Israel, D. Clowe, A. Edge, M. Hilton, E. Jullo, A.
Leonard, J. Liesenborgs, J. Merten, I. Mohammed, D. Nagai, J. Richard,
A. Robertson, P. Saha, R. Santana, J. Stott, E. Tittley. The behaviour
of dark matter associated with 4 bright cluster galaxies in the 10kpc
core of Abell 3827.
http://arxiv.org/abs/1504.03388
Finally, I will review (some of) the remaining papers from the previous
club:
L. Amendola, E. Menegoni, C. Di Porto, M. Corsi, E. Branchini.
Constraints on a scale-dependent bias from galaxy clustering.
http://arxiv.org/abs/1502.03994
H. Lemmel, Ph. Brax, A. N. Ivanov, T. Jenke, G. Pignol, M. Pitschmann,
T. Potocar, M. Wellenzohn, M. Zawisky, H. Abele. Neutron Interferometry
constrains dark energy chameleon fields.
http://arxiv.org/abs/1502.06023
Bin Hu, Marco Raveri. Can modified gravity models reconcile the tension
between CMB anisotropy and lensing maps in Planck-like observations?
http://arxiv.org/abs/1502.06599
Bridget Falck, Kazuya Koyama, Gong-bo Zhao. Cosmic Web and
Environmental Dependence of Screening: Vainshtein vs. Chameleon.
http://arxiv.org/abs/1503.06673
Brent Follin, Lloyd Knox, Marius Millea, Zhen Pan. A First Detection of
the Acoustic Oscillation Phase Shift Expected from the Cosmic Neutrino
Background.
http://arxiv.org/abs/1503.07863
Best regards,
Alexey.
Письмо вебмастеру