Table 1
Sample of PDRs with distance, effective temperature of the exciting star, incident FUV radiation field strength, gas density, and geometry.
| Source | Dist.a | Exciting star | FUV fieldb | Densityc | Geometryd | Ref. |
| (pc) | (Teff, spec.type) | (Draine) | (cm-3) | |||
|
|
||||||
| L1721 | 134 |
20 000 K, B2V | 4.5 [3–6] | 3 × 102–3 × 103 | S-C | (1) |
| California | 543 |
370 000, O7.5III | 19 [7–37] | 103–104 | E-O | (2) |
| N7023E | 429 |
15 000 K, B5Ve | 51 [27–82] | 7 × 103 | E-O | (3) |
| Horsehead | 352 |
33 000 K, O9.5V | 60 [30–110] | 104–105 | E-O | (4) |
| rho Oph | 136 |
22 000 K, B2V | 250 [180-340] | 1–5 × 104 | E-O, C | (5) |
| N2023N | 472 |
23 000 K, B1.5V | 550 [100–1370] | 104–105 | E-O, C | (6) |
Notes.
Estimated by Hipparcos (Perryman et al. 1997) and Hoogerwerf et al. (2000).
Incident FUV radiation field expressed in units χ of the Draine (1978) average interstellar radiation field with uncertainties in between brackets ([χmin, χmax]).
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.