Open Access
Table 2
Locations and approximate sizes of the main components identified in the star formation regions.
| Central l, b | |||
|---|---|---|---|
| Component | coordinates (°) | los extent (pc) | Notes |
| Orion: | |||
| Orion complex | 200, −15 | 280–500 | |
| Orion A | 210, −20 | 340–450 | |
| Orion A bubble | 215, −20 | 380–430 | |
| Orion B comp 1 | 206, −16 | 380–400, 430–475 | Separated into two segments along los |
| Orion B comp 2 | 204, −11 | 380–420 | |
| λ Ori | 195, −12 | 360–470 | |
| λ Ori centre | 195, −12 | 360–390 | |
| AB arc | 210, −15 | 400–450 | |
| Filament λ | l =186 | 270–300 | Could hold LDN 1558 and TGU L156 clumps |
| Cygnus X: | |||
| Cygnus X complex | 80, 0 | 1300–1500 | |
| Cyg X North | 82, 0 | 1500 | Densest region |
| Cyg X South | 79, −1 | 1350 | Densest region |
| NAN | 0, 85 | <800 | Located closer than Cygnus X |
| Perseus: | |||
| Perseus complex | 160, −20 | 300–350 | |
| IC348 | 160, −18 | 325 | |
| NGC 1333 | 158, −20 | 325 | |
| California filament | 158, −16 | 250–350 | |
| Taurus filament | 163, −17 | 300–330 | |
| Perseus filament | 157, −24 | 300–320 | Connecting Perseus and Taurus |
| Taurus: | |||
| Taurus complex | 172, −15 | 110–190 | Densest at 150–180 pc |
| TMC 1 | 174, −14 | 145–190 | |
| TMC 2 main | 174, −16 | 110–145 | |
| L1498 clump | 170, −19 | 195 | Part of TMC 2 |
| B215/L1506 extended clump | 172, −17.5 | 195–220 | |
| Taurus filament | 165, −17 | 220–250 | Connecting Perseus and Taurus |
| Arcs 1+2 | b < −14° | 190–250 | Could hold L1540, L1507 and L1503 |
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.