Early Planet Formation in Embedded Disks (eDisk) - XX. Constraining the chemical tracers of young protostellar sources

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Volume 704 (December 2025)

A&A, 704 (2025) A133

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Table 3

Summary of molecules observed toward eDisk sources.


Source name	¹²CO	¹³CO	C¹⁸O	SiO	SO	DCN	CH₃OH	H₂CO	c–C₃H₂
BHR71 IRS1	✓	✓	✓	✓	✓	✓	✓	✓	✓
BHR71 IRS2	✓	✓	✓	✓	✓	✓	✓	✓	✓
Ced110IRS4	✓	✓	✓	✗	✓	✗	✗	✓	✓
GSS30IRS3	✓	✓	✓	✓	✓	✗	✓	✓	✓
IRAS 04166	✓	✓	✓	✓	✓	✓	✓	✓	✓
IRAS 15398	✓	✓	✓	✓	✓	✓	✓	✓	✓
IRAS 16253	✓	✓	✓	✗	✓	✓	✗	✓	✓
IRAS 16544	✓	✓	✓	✓	✓	✓	✓	✓	✓
L1527	✓	✓	✓	✓	✓	✓	✗	✓	✓
IRAS 32	✓	✓	✓	✗	✓	✓	✓	✓	✓
IRS5N	✓	✓	✓	✗		✗	✗	✓	✗
IRAS 04169	✓	✓	✓	✗	✓	✗	✗	✓	✗
IRAS 04302	✓	✓	✓	✗	✓	✗	✗	✓	✗
L1489	✓	✓	✓	✗	✓	✓	✗	✓	✓
OphIRS43	✓	✓	✓	✗	✓	✗	✗	✓	✓
OphIRS63	✓	✓	✓	✗	✓	✗	✗	✓	✗
IRS7B		✓	✓		✓	✓		✓
B335	✓	✓	✓	−	−	−	−	−	−
TMC1A	✓	✓	✓	−	−	−	−	−	−

Notes. ^✓ Emission is detected at ≥3σ level toward the source. ^✗ No emission is detected at 3σ level. Emission is detected at ≥3σ level, but is unlikely to be directly associated with the protostellar system.

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