The Chemical Clock of High-mass Star-forming Regions: N2H+/CCS
Using the Institut de Radioastronomie Millmétrique 30 m telescope, we presented observations of N _2 H ^+ J = 1−0, CCS J _N = 8 _7 –7 _6 and 7 _7 –6 _6 lines toward a large sample of ultracompact H II regions (UC H II s). Among our 88 UC H II s, 87 and 33 sources were detected in the N _2 H ^+ J = 1...
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2025-01-01
|
| Series: | The Astronomical Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/1538-3881/addf35 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|