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• W2138348071 abstract "We observed the pre-stellar core L1521F in dust emission at 1.2 mm and in two transitions each of , , and in order to increase the sample of well studied centrally concentrated and chemically evolved starless cores, likely on the verge of star formation, and to determine the initial conditions for low-mass star formation in the Taurus Molecular Cloud. The dust observation allows us to infer the density structure of the core and together with measurements of CO isotopomers gives us the CO depletion. and lines are good tracers of the dust continuum and thus they give kinematic information on the core nucleus. We derived in this object a molecular hydrogen number density n( and a CO depletion factor, integrated along the line of sight, in the central 20´´, similar to the pre-stellar core L1544. However, the column density ratio is ~0.1, a factor of about 2 lower than that found in L1544. The observed relation between the deuterium fractionation and the integrated CO depletion factor across the core can be reproduced by chemical models if is slightly (factor of ~2 in fractional abundance) depleted in the central 3000 AU. The and linewidths in the core center are ~0.3 , significantly larger than in other more quiescent Taurus starless cores but similar to those observed in the center of L1544. The kinematical behaviour of L1521F is more complex than seen in L1544, and a model of contraction due to ambipolar diffusion is only marginally consistent with the present data. Other velocity fields, perhaps produced by accretion of the surrounding material onto the core and/or unresolved substructure, are present. Both chemical and kinematical analyses suggest that L1521F is less evolved than L1544, but, in analogy with L1544, it is approaching the “critical” state." @default.
• W2138348071 created "2016-06-24" @default.
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• W2138348071 date "2004-06-01" @default.
• W2138348071 modified "2023-10-02" @default.
• W2138348071 title "Observations of L1521F: A highly evolved starless core" @default.
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• W2138348071 cites W1965206064 @default.
• W2138348071 cites W1965372241 @default.
• W2138348071 cites W1972568324 @default.
• W2138348071 cites W1978830669 @default.
• W2138348071 cites W1979314142 @default.
• W2138348071 cites W1980530720 @default.
• W2138348071 cites W1993864886 @default.
• W2138348071 cites W1996532379 @default.
• W2138348071 cites W2000541536 @default.
• W2138348071 cites W2000672249 @default.
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• W2138348071 cites W2014031521 @default.
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• W2138348071 cites W2015732298 @default.
• W2138348071 cites W2017518617 @default.
• W2138348071 cites W2019528126 @default.
• W2138348071 cites W2021459290 @default.
• W2138348071 cites W2024173203 @default.
• W2138348071 cites W2024389974 @default.
• W2138348071 cites W2026764973 @default.
• W2138348071 cites W2028867124 @default.
• W2138348071 cites W2031916992 @default.
• W2138348071 cites W2033725176 @default.
• W2138348071 cites W2033852858 @default.
• W2138348071 cites W2034229231 @default.
• W2138348071 cites W2037766454 @default.
• W2138348071 cites W2045954828 @default.
• W2138348071 cites W2049707893 @default.
• W2138348071 cites W2050829508 @default.
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• W2138348071 cites W2059821387 @default.
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• W2138348071 cites W2063364140 @default.
• W2138348071 cites W2066840892 @default.
• W2138348071 cites W2067922924 @default.
• W2138348071 cites W2068310343 @default.
• W2138348071 cites W2079740281 @default.
• W2138348071 cites W2080063950 @default.
• W2138348071 cites W2081745671 @default.
• W2138348071 cites W2086736601 @default.
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• W2138348071 doi "https://doi.org/10.1051/0004-6361:20035915" @default.
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