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We present a comprehensive test of the relation between stellar and total mass in galaxies as predicted by popular models based on abundance matching (AM) techniques. We use the ``Spectroscopy and H-band Imaging of Virgo cluster galaxies'' (SHIVir) survey with photometric and dynamical profiles for 190 Virgo cluster galaxies to establish a relation between the stellar and dynamical masses measured within the isophotal radius $r_{23.5}$. Various dark matter and galaxy scaling relations are combined with results from the NIHAO suite of hydrodynamical simulations to recast AM predictions in terms of these observed quantities. Our results are quite insensitive to the exact choice of dark matter profile and halo response to baryon collapse. We find that theoretical models reproduce the slope and normalization of the observed stellar-to-halo mass relation (SHMR) over more than three orders of magnitude in stellar mass $(10^8 < M_*/M_{\odot} < 2 \times 10^{11})$. However, the scatter of the observed SHMR exceeds that of AM predictions by a factor $\sim$5. For systems with stellar masses exceeding $5 \times 10^{10}~M_{\odot}$, AM overpredicts the observed stellar masses for a given dynamical mass. The latter offset may support previous indications of a different stellar initial mass function in these massive galaxies. Overall our results support the validity of AM predictions on a wide dynamical range., 5 pages, 4 figures, accepted for publication in MNRAS Letters

In Inukjuak (Nunavik) the existence of tuurngait is entrenched in local cosmology and is part of the experiences of contemporary Inuit. However, it is no longer associated with the angakkuq (the Inuit shaman) like it seems to be the case elsewhere in the Arctic. The existence of these non-human beings lies in worldviews which permeate all social and cultural aspects of the society as a whole. By maintaining the relationship between humans and non-humans, the encounters with tuurngait and the stories involving tuurngait maintain and establish some aspects of the Inuit worldview. The cultural transformations that took place since the Inujjuamiut converted to Christianity do not seem to have completely reached the core of their worldview. Thus, some notions that were at the basis of shamanistic practices are still important today and can be seen, among other things, through the existence of the tuurngait., Dans la région d’Inukjuak l’existence des tuurngait s’inscrit dans la cosmologie et dans l’expérience inuit contemporaine mais elle n’est plus associée à l’angakkuq (le chamane inuit) comme cela semble être le cas ailleurs dans l’Arctique. La réalité de ces êtres non-humains repose sur les conceptions du monde qui imprègnent la totalité du social et du culturel. En maintenant les relations entre les humains et les non-humains, les rencontres et les récits impliquant des tuurngait affirment et établissent des aspects de la vision du monde inuit. Les transformations résultant de l’adoption du christianisme par les Inujjuamiut ne semblent donc pas avoir complètement atteint leurs représentations fondamentales du monde. Ainsi, des conceptions qui étaient à la base des pratiques chamaniques demeurent importantes jusqu’à ce jour et elles se manifestent, entre autres choses, à travers la réalité des tuurngait.

We have discovered a 2.5 Mpc (projected) long filament of infrared-bright galaxies connecting two of the three ~5x10^14 Msun clusters making up the RCS 2319+00 supercluster at z=0.9. The filament is revealed in a deep Herschel Spectral and Photometric Imaging REceiver (SPIRE) map that shows 250-500um emission associated with a spectroscopically identified filament of galaxies spanning two X-ray bright cluster cores. We estimate that the total (8-1000um) infrared luminosity of the filament is Lir~5x10^12 Lsun, which, if due to star formation alone, corresponds to a total SFR 900 Msun/yr. We are witnessing the scene of the build-up of a >10^15 Msun cluster of galaxies, seen prior to the merging of three massive components, each of which already contains a population of red, passive galaxies that formed at z>2. The infrared filament demonstrates that significant stellar mass assembly is taking place in the moderate density, dynamically active circumcluster environments of the most massive clusters at high-redshift, and this activity is concomitant with the hierarchical build-up of large scale structure., 5 pages, 3 figures, version resubmitted to ApJL after reviewer comments addressed