Identification of Hot Gas around Low-mass Protostars
Merel L. R. van ’t Hoff,
Edwin A. Bergin,
Penelope Riley
et al.
Abstract:The low carbon content of Earth and primitive meteorites compared to the Sun and interstellar grains suggests that carbon-rich grains were destroyed in the inner few astronomical units of the young solar system. A promising mechanism to selectively destroy carbonaceous grains is thermal sublimation within the soot line at ≳300 K. To address whether such hot conditions are common among low-mass protostars, we observe CH3CN transitions at 1, 2, and 3 mm with the NOrthern Extended Millimeter Array toward seven lo… Show more
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