3 papers
astro-ph2001
A multiscale regularized restoration algorithm for XMM-Newton data
H. Bourdin, E. Slezak, A. Bijaoui +1
We introduce a new multiscale restoration algorithm for images with few photons counts and its use for denoising XMM data. We use a thresholding of the wavelet space so as to remov…
astro-ph1995
New Results on the Coma cluster: Revealing the Primary Component
F. Durret, A. Biviano, D. Gerbal +4
Recent observations of the Coma cluster of galaxies in its central region have provided approximately 250 new redshifts - allowing a good membership criterion to be established for…
astro-ph1994
On the galaxy luminosity function in the central regions of the Coma cluster
A. Biviano, F. Durret, D. Gerbal +4
We have obtained new redshifts for 265 objects in the central 48~~25~arcmin region of the Coma cluster. When supplemented with literature data, our redshift sample is 9…