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astro-ph2002★ 33 cited
Abundances of Molecular Species in Barnard 68
James Di Francesco, Michiel R. Hogerheijde, William J. Welch +1
Abundances for 5 molecules (C18O, CS, NH3, H2CO, and C3H2) and 1 molecular ion (N2H+) and upper limits for the abundances of 1 molecule (13CO) and 1 molecular ion (HCO+) are derive…
astro-ph2002★ 32 cited
Limits on Radio Continuum Emission from a Sample of Candidate Contracting Starless Cores
D. W. A. Harvey, D. J. Wilner, J. Di Francesco +3
We used the NRAO Very Large Array to search for 3.6 cm continuum emission from embedded protostars in a sample of 8 nearby ``starless'' cores that show spectroscopic evidence for i…