Browsing FAS Scholarly Articles by Author "Qi, C"

Now showing items 1-3 of 3

    • DCO+, DCN, and N2D+ Reveal Three Different Deuteration Regimes in the Disk Around the Herbig Ae Star HD 163296 

      Salinas, Victoria; Hogerheijde, M; Mathews, G; Oberg, Karin; Qi, C; Williams, J; Wilner, David (EDP Sciences, 2017-10-24)
      Context: Deuterium fractionation has been used to study the thermal history of pre-stellar environments. Their formation pathways trace different regions of the disk and may shed light into the disk’s physical structure, ...

    • Increased H2CO production in the outer disk around HD 163296 

      Carney, M; Hogerheijde, M; Loomis, R; Salinas, Victoria; Oberg, Karin; Qi, C; Wilner, David (EDP Sciences, 2017-09)
      Context: The gas and dust in circumstellar disks provide the raw materials to form planets. The study of organic molecules and their building blocks in such disks offers insight into the origin of the prebiotic environment ...

    • Nitrogen Fractionation in Protoplanetary Disks from the H13CN/HC15N Ratio 

      Guzman, Victor; Oberg, Karin; Huang, Jenny; Loomis, R; Qi, C (American Astronomical Society, 2017-02-07)
      Nitrogen fractionation is commonly used to assess the thermal history of Solar System volatiles. With ALMA it is for the first time possible to directly measure 14N/15N ratios in common molecules during assembly of planetary ...