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http://hdl.handle.net/2289/8084Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Vasiliev, Evgenii O. | - |
| dc.contributor.author | Drozdov, Sergey A. | - |
| dc.contributor.author | Nath, Biman B. | - |
| dc.contributor.author | Dettmar, Ralf-Jurgen | - |
| dc.contributor.author | Shchekinov, Yuri A. | - |
| dc.date.accessioned | 2023-04-24T09:33:25Z | - |
| dc.date.available | 2023-04-24T09:33:25Z | - |
| dc.date.issued | 2023-04-01 | - |
| dc.identifier.citation | Monthly Notices of the Royal Astronomical Society, 2023, Vol. 520, p2655 | en_US |
| dc.identifier.issn | 0035-8711 | - |
| dc.identifier.issn | 1365-2966 (Online) | - |
| dc.identifier.uri | http://hdl.handle.net/2289/8084 | - |
| dc.description | Restricted Access | en_US |
| dc.description.abstract | We consider the dynamics of and emission from growing superbubbles in a stratified interstellar gaseous disc driven by energy release from supernovae explosions in stellar clusters with masses Mcl = 105 − 1.6 × 106 M⊙. Supernovae are spread randomly within a sphere of rc = 60 pc, and inject energy episodically with a specific rate 1/130 M−1⊙ proportional to the star formation rate (SFR) in the cluster. Models are run for several values of SFR in the range 0.01 to 0.1 M⊙ yr−1, with the corresponding average surface energy input rate ∼0.04–0.4 erg cm−2 s−1. We find that the discrete energy injection by isolated SNe are more efficient in blowing superbubbles: Asymptotically they reach heights of up to 3 to 16 kpc for Mcl = 105 − 1.6 × 105 M⊙, correspondingly, and stay filled with a hot and dilute plasma for at least 30 Myr. During this time, they emit X-ray, Hα and dust infrared emission. X-ray luminosities LX∝SFR3/5 that we derive here are consistent with observations in star-forming galaxies. Even though dust particles of small sizes a ≤ 0.03 μm are sputtered in the interior of bubbles, larger grains still contribute considerably ensuring the bubble luminosity LIR/SFR∼5×107L⊙M−1⊙ yr. It is shown that the origin of the North Polar Spur in the Milky Way can be connected with activity of a cluster with the stellar mass of ∼105 M⊙ and the SFR ∼ 0.1 M⊙ yr−1 some 25–30 Myr ago. Extended luminous haloes observed in edge-on galaxies (NGC 891 as an example) can be maintained by disc spread stellar clusters of smaller masses M* ≲ 105 M⊙. | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | Oxford University Press | en_US |
| dc.relation.uri | https://doi.org/10.1093/mnras/stad309 | en_US |
| dc.rights | 2023 The Author(s) | en_US |
| dc.title | Disc-halo gas outflows driven by stellar clusters as seen in multiwavelength tracers | en_US |
| dc.type | Article | en_US |
| Appears in Collections: | Research Papers (A&A) | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2023_MNRAS_Vol.520_p2655.pdf | Restricted Access | 2.58 MB | Adobe PDF | View/Open |
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