Astrophysical: Interstellar extinction

  • Publication
    Dust in the nuclei of the Seyfert galaxies Markarian 231 and NGC 4151
    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...
  • Publication
    Effects of interstellar absorptions on MG II chromospheric emissions
    The Mg II chromospheric emissions in cool stars were analyzed using high resolution IUE archive spectra. The ways in which interstellar (IS) absorptions can...
  • Publication
    Extinction corrections in ground based infrared spectrometry
    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...
  • Publication
    Fullerenes and Buckyonions in the Interstellar Medium
    We have studied the contribution of single fullerenes and buckyonions to the interstellar extinction. The photoabsorption spectra of these molecules is...
  • Publication
    High-resolution observations of interstellar NA I and K I absorptions towards giants within 200 PC from the sun
    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...
  • Publication
    How anomalous is the interstellar extinction in NGC 3372, the Carina Nebula?
    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...
  • Publication
    Infrared photometry of M10 red giant stars
    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...
  • Publication
    Infrared photometry of upper main sequence stars in M39
    Infrared photometry of 19 Main sequence stars in the open cluster M39 is presented. Infrared-infrared and optical-infrared color-color and color-magnitude...
  • Publication
    Infrared sources in the compact H II region G45.5 plus 0.1
    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...