4 papers
Formation and evolution of galaxy disks: what is wrong with CDM?
V. Avila-Reese, C. Firmani
We find that the density distribution of high and low surface brightness (SB) galaxy disks formed within LCDM halos under the assumption of detailed angular momentum conservation i…
Search for second overtone Cepheids in the Magellanic Clouds. I. Study of three candidates in the SMC
L. Mantegazza, E. Antonello
Accurate CCD observations of three Cepheids in the SMC were made with the purpose of confirming their nature of second overtone mode Cepheids. The stars were suspected pulsating in…
X-ray emission, optical nebulosity and dust in early-type galaxies. I. The dusty nebular filaments in NGC 5846
Paul Goudfrooij, Ginevra Trinchieri
We present new optical imagery of the X-ray bright elliptical galaxy NGC 5846, the dominant galaxy of a small group of galaxies. A dust lane with a dust mass of 7 10^3 Msun is dete…
Search for Old Neutron Stars in molecular clouds: Cygnus Rift and Cygnus OB7
Tomaso Belloni, Luca Zampieri, Sergio Campana
We present the results of a systematic search for old isolated neutron stars (ONSs) in the direction of two giant molecular clouds in Cygnus (Rift and OB7). From theoretical calcul…