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Table 1
Bubbles as seen by ATLASGAL. Presence of collected material (partial shell or numerous condensations surrounding the ionized region).
| Identification | Comments |
|
|
|
| N2 | collected material along the open bubble (faint emission) + several bright condensations at one end, containing several UC |
| and compact H ii regions and two 6.7 GHz methanol masers | |
| N4 | shell of collected material |
| N12 | several adjacent condensations, some in the direction of “fingers” or of IRDCs |
| N14 | shell of collected material |
| G15.68 | square bubble; shell of collected material; most of the condensations are IRDCs |
| N18 | several faint condensations following the PDR, two UC H ii regions (uncertain association) |
| N21 | collected material (faint emission); one bright adjacent interacting condensation |
| N22 | collected material (faint emission); two bright adjacent interacting condensations |
| N24 | collected material (faint emission); several bright condensations, one adjacent to the N24bis1 H ii region, |
| another one surrounding the N24bis2 H ii region | |
| N24bis2 | shell of collected material; a 6.7 GHz methanol maser |
| N29 | several faint condensations along the PDR; one bright interacting condensation |
| N35 | several faint condensations along the PDR; one interacting condensation; two nearby compact H ii regions |
| N36 | collected material + a very bright condensation containing an UC and a compact H ii regions; |
| OH, H2O and methanol masers associated with the UC H ii region | |
| N45 | several bright condensations along the PDR; one interacting condensation |
| N49 | half a ring of collected material with massive fragments; one UC H ii region on the border of the brightest fragment; |
| two 6.7 GHz methanol masers | |
| N50 | a partial shell of collected material |
| N52 | bright dust emission along the 8 μm filaments surrounding the bipolar nebula; very bright condensations at its “waist”, |
| containing an UC and a compact H ii regions; four 6.7 GHz methanol masers | |
| G31.16 | faint emission following the PDR; one condensation in the direction of N53 |
| N59 | numerous dust condensations along the PDR; three UC H ii regions in the direction of the brightest condensation; |
| is the N58 bubble associated? is the bipolar nebula at 33.201 − 00.011 associated? | |
| N65 | collected material (faint emission) on the border of the two bubbles; one bright condensation |
| with a hyper or UC H ii region and a 6.7 GHz methanol maser | |
| N68 | similar to N36; several faint condensations adjacent to the PDR + a bright condensation containing an UC and a compact H ii region |
| N69 | collected material (faint emission) along the bright part of the PDR |
| N77 | several condensations adjacent to the PDR; the brightest one in interaction with the ionized gas |
| N80 | several condensations around the bubble |
| N90 | several condensations around the bubble |
| N94 | several faint condensations along the PDR; some are bordered by bright rims |
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