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- W2119769293 abstract "L 1521BisadensecorenearB216inoneofthelong laments of the Taurus molecular cloud complex. The core is not associated with any known IR sources and shows no ap- parent signs of star formation. We have mapped the cloud in 13 CO(1{0) and C 18 O(1{0) using a grid of 1 0 . This area, alto- gether some 140 square arc minutes, contains the density max- imum as well as some parts of the lament north-west of the cloud centre. At the centre position we derive a column den- sity N(C 18 O)=410 15 cm 2 and an optical depth of about 1.3 for C 18 O.Usingavalueofr=140pcforthedistanceweestimatethat the total mass contained within a radius of 3 0 around the density maximum is about 20 solar masses. The visual extinction has been estimated from the C 18 O column density and through star counts of two elds observed at 2.2m. The extinction in the central region is AV 20 m . We have also mapped part of the B216 lament about one degree north-west of the centre of L 1521B in C 18 O(1{0). This area contains two IRAS point sources which are probably asso- ciated with class I protostars." @default.
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- W2119769293 date "1997-02-01" @default.
- W2119769293 modified "2023-09-23" @default.
- W2119769293 title "STRUCTURE OF L 1521B : CO OBSERVATIONS OF A DENSE CORE IN TAURUS" @default.
- W2119769293 hasPublicationYear "1997" @default.
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