Observations carried out with a 8-13 micron grating-spectrometer of Mrk 231 and NGC 4151 are reported. The Mrk 231 data can be fitted to various thermal dust...

The Mg II chromospheric emissions in cool stars were analyzed using high resolution IUE archive spectra. The ways in which interstellar (IS) absorptions can...

Calculations of atmospheric transmission through the M (5 microns) atmospheric window, at a resolution of 10 to the 3rd power are presented for sites at the...

We have studied the contribution of single fullerenes and buckyonions to the interstellar extinction. The photoabsorption spectra of these molecules is...

The first results of a program of observations designed to probe the structure and kinematics of the Local Interstellar Medium (LISM) using the Queen's...

Near-infrared JHKL photometry of more than 200 stars in the open clusters Tr 14, Tr 15, Tr 16, Cr 228, and Cr 232 in the Carina Nebula is presented. By...

New IR photometry of M10 red giant stars is presented, and these data are used to derive the reddening and the distance modulus of the M10 cluster and to locate...

Infrared photometry of 19 Main sequence stars in the open cluster M39 is presented. Infrared-infrared and optical-infrared color-color and color-magnitude...

Infrared photometric observations (1.25-10 microns) of the compact H II region G45.5 plus 0.1 are reported. Three new sources, which appear pointlike in nature...