Differential efficiency of massive star formation in NGC 628
The efficiency ratio of massive star formation in the arms of the spiral NGC 628 to that in the interarm region has been determined from the sizes and positions...
Diffractional treatment of curvature sensing in segmented-mirror telescopes
Discontinuities in the wavefront phase or amplitude affect curvature sensor (CS) response. These discontinuities may be the result of an improper alignment of...
We will present analysis of the diffuse emission from the nucleus of M31 using a 40 ks Chandra ACIS-S observation. The observation was taken by Chandra on 5...
Diffuse gamma-ray line emission from multiple OB associations in Cygnus
The COMPTEL observations of the diffuse galactic 1.809 MeV emission attributed to the radioactive decay of 26 Al have confirmed the diffuse nature of this...
Diffuse gamma-ray line emission from multiple OB Associations in Cygnus
The COMPTEL observations of the diffuse galactic 1.809 MeV emission attributed to the radioactive decay of 26 Al have confirmed the diffuse nature of this...
Diffuse Interstellar Bands in (Proto-) Fullerene-Rich Environments
The recent infrared detection of fullerenes (C60 and C70) in Planetary Nebulae (PNe) and R Coronae Borealis (RCB) stars offers a beautiful opportunity for...