The interaction of a planetary nebula with the ISM
NGC 7293, the Helix nebula, represents one of the rare instances in which theoretical predictions of stellar evolution can be accurately tested against...
The Interaction of Multiple Shell Planetary Nebulae with the ISM
Multiple shell planetary nebulae (MSPNe) are those which, in addition to the main bright inner shell, show one or two additional external shells. These faint...
The Internal Dynamics of A115 Nearby Cluster of Galaxies
Based on optical data we propose a dynamycal model for A115. From spatial and radial velocity distributions we find three massive subsclusters that configure a...
The Internal Kinematics of Complete Sets of HII Regions in Disc Galaxies
We analyse spectral images across the full emission line in H_α of the discs of M100 and M101, extracting for each HII region its spectrum, and for the more...
The interplay of internal and external processes in the buildup of disk galaxies: thick disks in AURIGA simulations
Recent integral-field spectroscopy observations have revealed that thick- and thin-disk star-formation histories are regulated by the interplay of internal and...
The interplay of internal and external processes in the buildup of disk galaxies: thick-disk star formation histories in AURIGA simulations
Recent integral-field spectroscopy observations have revealed that thick- and thin-disk star-formation histories are regulated by the interplay of internal and...
The interstellar extinction and distance modulus to M10 from infrared photometry
From a new infrared photometry of the globular cluster M10 its interstellar extinction and distance i~odu1us are discussed. This is done by comparison with the...