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...
We have studied the amount of diffuse light in two galaxy groups, Leo and HCG 44 through the detection of intragroup planetary nebulae (IGPNe). The emission...
Digging into the mystery of the Galactic globular clusters M22 and NGC1851
We propose to collect deep near-infrared (NIR) images of two peculiar Galactic globular clusters (GGCs), NGC1851 and M22, to explore the properties of their...