L1521E is a dense starless core in Taurus which was found to have relatively low molecular depletion by earlier studies, thus suggesting a recent formation. We have obtained ~2.5 × 2.5 arcminute maps toward L1521E using the IRAM-30m telescope in transitions of various species, including C17O, CH3OH, C3H2, CN, SO, H2CS, and CH3CCH.
The talk will focus on results on the abundances of the observed species, a principal component analysis, and the CO depletion factors estimated using the C17O IRAM-30m map and an H2 column density map derived from Herschel/SPIRE data. The results will be compared to those obtained toward the more evolved and better characterized pre-stellar core L1544.
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