7 papers · 1 filter
The GraS Hypothesis: a Model for Dark Matter-Baryons Gravitational Interaction
Federico Piazza, Christian Marinoni
According to the gravitational suppression (GraS) hypothesis the gravitational interaction between exotic (dark) and standard (visible) matter is suppressed below the kpc scales. W…
Evidence for Galaxy Formation at High Redshift
T. Shanks, N. Metcalfe, R. Fong +3
We have shown previously that galaxy counts from the UV to the near-IR are well-fitted by simple evolutionary models where the space density of galaxies remains constant with look-…
A 3D morpho-kinematic study of NGC 3132
H. Monteiro, C. Morisset, R. Gruenwald +1
We present a new modeling tool for planetary nebulae (PNe), based on 3D photoionization calculations. From models for two theoretical PNe, we show that the enhancement in the equat…
Kinematics of the anemic cluster galaxy NGC 4548 - Is stripping still active ?
B. Vollmer, V. Cayatte, A. Boselli +2
We present new HI (20" resolution) and CO observations of NGC 4548, an anemic galaxy in the Virgo cluster. The atomic gas distribution shows a ring structure which is distorted at…
The Marseille Schmidt survey for active star-forming galaxies. I. Data on 92 emission line objects in two fields
C. Surace, G. Comte
We present data from a moderately deep spectroscopic Schmidt survey (Blim=17.5) of ``active galaxies'' selected by the presence of emission lines in their spectra and/or their UV e…
Detection of candidate primordial galaxies at z>4
V. Le Brun, J. Boulesteix, A. Mazure +2
We report on the detection of four primordial galaxies candidates in the redshift range 4.55 < z < 4.76, as well as 4 other candidates in the range 4.12 < z < 4.32. These galaxies…