ATOMIUM: Molecular inventory of 17 oxygen-rich evolved stars observed with ALMA

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Table 4

Maximum measured radial extent of each molecule across all sources.

Mol.	Range in	Median	Max	N_sou
	r_max (R_⋆)	r_max (R_⋆)	r_max (″)
SiC	<2.1	–	0.01	1
TiO₂	14	–	0.06	1
OH	<3.0– 17	6	0.20	6
AlOH	<1.3–45	4	0.20	5
AlF	<2.8–81	12	0.44	7
PO	<2.0–120	26	0.33	11
AlCl	130	–	0.69	1
AlO	<1.2–150	3	0.67	9
KCl	140–150	145	0.50	2
TiO	<1.5–160	6	0.47	7
HC₃N	210	–	1.14	1
H₂O	5.3–230	36	0.66	15
SiC₂	270	–	1.47	1
NaCl	<1.5–280	250	0.90	3
SiN	390	–	2.14	1
H₂S	7.2–490	140	1.60	5
HCN	22–590	120	1.92	17
SiS	5.5–610	210	1.97	10
CS	<13–640	150	3.51	10
SO₂	4.3–710	290	2.31	13
SO	5.1–780	340	2.53	14
SiO	140–1100	440	3.42	17
CO	29–2400^(†)	1300	7.87^(t)	17

Notes. Maximum extents in CO are likely underestimated and are marked with ^(†). Transitions with no measurable extent are noted as upper limits equal to the radius of the beam (b_maj/2). The molecules are arranged according to the maximum measured r_max in R_⋆.

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