The kinematics of the outer parts of three intermediate-luminosity elliptical galaxies have been studied using the Planetary Nebula Spectrograph. The galaxies' velocity dispersion profiles are found to decline with radius; dynamical modeling of the data indicates the presence of little if any dark matter in these galaxies' halos. This surprising result conflicts with findings in other galaxy types, and poses a challenge to current galaxy formation theories
We present new Planetary Nebula Spectrograph observations of the ordinary elliptical galaxy NGC 4494...
The dark matter (DM) halos of field elliptical galaxies have not been well-studied and their propert...
As part of our current programme to test ΛCDM predictions for dark matter (DM) haloes using extended...
The kinematics of the outer parts of three intermediate-luminosity elliptical galaxies were studied ...
The kinematics of the outer parts of three intermediate-luminosity elliptical galaxies were studied ...
The kinematical properties of elliptical galaxies formed during the mergers of equal mass, stars+gas...
According to the paradigm of cosmology, all galaxies are embedded in massive dark-matter haloes. Thi...
The Planetary Nebula Spectrograph is a dedicated instrument for measuring radial velocity of individ...
This review is focussed on the outer halos of elliptical galaxies. Its emphasis is on (i) planetary ...
The halo masses of nearby individual elliptical galaxies can be estimated by using the kinematics of...
The halo masses of nearby individual elliptical galaxies can be estimated by using the kinematics of...
International audienceDensity profiles (NFW and similar) of structures found in cosmological LambdaC...
We study the variation of the dark matter mass fraction of elliptical galaxies as a function of thei...
I review the observational situation concerning the existence of dark matter in the outer parts of g...
The dark matter (DM) halos of field elliptical galaxies have not been well-studied and their propert...
We present new Planetary Nebula Spectrograph observations of the ordinary elliptical galaxy NGC 4494...
The dark matter (DM) halos of field elliptical galaxies have not been well-studied and their propert...
As part of our current programme to test ΛCDM predictions for dark matter (DM) haloes using extended...
The kinematics of the outer parts of three intermediate-luminosity elliptical galaxies were studied ...
The kinematics of the outer parts of three intermediate-luminosity elliptical galaxies were studied ...
The kinematical properties of elliptical galaxies formed during the mergers of equal mass, stars+gas...
According to the paradigm of cosmology, all galaxies are embedded in massive dark-matter haloes. Thi...
The Planetary Nebula Spectrograph is a dedicated instrument for measuring radial velocity of individ...
This review is focussed on the outer halos of elliptical galaxies. Its emphasis is on (i) planetary ...
The halo masses of nearby individual elliptical galaxies can be estimated by using the kinematics of...
The halo masses of nearby individual elliptical galaxies can be estimated by using the kinematics of...
International audienceDensity profiles (NFW and similar) of structures found in cosmological LambdaC...
We study the variation of the dark matter mass fraction of elliptical galaxies as a function of thei...
I review the observational situation concerning the existence of dark matter in the outer parts of g...
The dark matter (DM) halos of field elliptical galaxies have not been well-studied and their propert...
We present new Planetary Nebula Spectrograph observations of the ordinary elliptical galaxy NGC 4494...
The dark matter (DM) halos of field elliptical galaxies have not been well-studied and their propert...
As part of our current programme to test ΛCDM predictions for dark matter (DM) haloes using extended...