A correlation between chemistry, polarization, and dust properties in the Pipe nebula starless core FeSt 1-457

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Table 3

Chemical differentiation.


Molecule	θ^a (′′)	S/N	Peak shift^b (′′)	σ_s^c (′′)

HNC	49.8	106	7	0.2
HCN	51.0	16	21, 26	1.4
H¹³CN	52.1	8	10	3.1
HC₃N	55.0	20	14	1.3
N₂H⁺	48.4	52	10	0.4
NH₂D	52.5	10	7	2.3
C₃H₂2(1, 2)	52.8	33	13	0.7
C₃H₂2(0, 2)	55.0	12	33	2.1
C₄H	52.8	9	43	2.6
HCO⁺	50.6	103	43	0.2
CH₃OH	46.6	14	45	1.5
C¹⁸O	41.0	81	119	0.2
¹³CO	41.0	41	58	0.4
CS	46.2	41	33	0.5
SO	45.4	15	24	1.4

Notes.

^(a)

Beam size after a Gaussian smoothing of three pixels (pixel size ~13′′).

^(b)

Peak shift with respect to the 1.2 mm dust continuum peak.

^(c)

Position uncertainty given by (Reid et al. 1988).

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