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Browsing by Author "Sofia, U. J"

Browsing by Author "Sofia, U. J"

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  • Determining Interstellar Carbon Abundances from Strong-line Transitions 
    Sofia, U. J; Parvathi, V. S; Babu, B. R. S; Murthy, J (IOP Publishing, 2011-01)
    Carbon is arguably the most important element in the interstellar medium, yet its abundance in gas and dust is poorly understood due to a paucity of data. We explore the possibility of substantially increasing our knowledge ...
  • Estimation of CII and CII* column densities along Galactic sight-lines 
    Parvathi, V. S; Sofia, U. J; Murthy, J; Babu, B. R. S (Astronomical Society of India, 2010-09)
    We present interstellar CII (1334.5323 \AA) and CII* (1335.7077 \AA) column density measurements along 14 Galactic sight-lines. These sight-lines sample a variety of Galactic disk environments and include paths that range ...
  • Probing the Role of Carbon in Ultraviolet Extinction along Galactic Sight Lines 
    Parvathi, V. S; Sofia, U. J; Murthy, J; Babu, B. R. S (IOP Publishing, 2012-11-20)
    We report previously undetermined interstellar gas and dust-phase carbon abundances along 15 Galactic sight lines based on archival data of the strong 1334.5323 Å transition observed with the Space Telescope Imaging ...
  • Silicon depletion in the interstellar medium 
    Haris, U; Parvathi, V. S; Gudennavar, S. B; Bubbly, S. G; Murthy, J; Sofia, U. J (IOP Publishing, 2016-07)
    We report interstellar silicon ( Si ) depletion and dust-phase column densities of Si along 131 Galactic sight lines using archival observations. The data were corrected for differences in the assumed oscillator ...

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