2021
DOI: 10.1051/0004-6361/202039205
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Abstract: Context. Many galaxies host pronounced circumnuclear starbursts, fuelled by infalling gas. Such activity is expected to drive the secular evolution of the nucleus and generate super winds which enrich the interstellar and intergalactic medium. Moreover, given the intense radiation fields and extreme gas and cosmic ray densities present within such regions, one might question whether star formation proceeds in a different manner to that occurring in more quiescent regions of the galactic disc, potentially leadi… Show more

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Cited by 11 publications
(8 citation statements)
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References 162 publications
(278 reference statements)
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“…One hypothesis that would be consistent with the quiescent picture of G0.253+0.016, is that the arc represents a shell swept up by the wind of an interloper star. High-mass stars possess powerful winds and the CMZ is unique in our Galaxy in that there is a rich population of 'field' high-mass stars distributed throughout (Mauerhan et al 2010;Dong et al 2011;Clark et al 2021). The origin of this population is unclear.…”
Section: Is the Arc A Shell Swept Up By The Wind Of An Interloper Star?mentioning
confidence: 99%
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“…One hypothesis that would be consistent with the quiescent picture of G0.253+0.016, is that the arc represents a shell swept up by the wind of an interloper star. High-mass stars possess powerful winds and the CMZ is unique in our Galaxy in that there is a rich population of 'field' high-mass stars distributed throughout (Mauerhan et al 2010;Dong et al 2011;Clark et al 2021). The origin of this population is unclear.…”
Section: Is the Arc A Shell Swept Up By The Wind Of An Interloper Star?mentioning
confidence: 99%
“…Reconciliation may be possible if: i) our assumed mass loss rate and wind velocity are underestimated; ii) both ρ 0 and v * are overestimated. Regarding the former scenario, Some of the 'field' high-mass stars located within the Galactic Centre are more evolved Wolf-Rayet (WR) stars (Mauerhan et al 2010;Dong et al 2011;Clark et al 2021). WR stars have powerful stellar winds, with mass loss rates that can be 100× that of O stars.…”
Section: Is the Arc A Shell Swept Up By The Wind Of An Interloper Star?mentioning
confidence: 99%
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“…The best studied massive young star cluster in the inner Galactic disk is Westerlund 1 (Wd1), at a distance of ∼4 kpc (Beasor et al 2021), while there are also several older massive clusters at the end of the Galactic Bar which are rich in red supergiants (Davies et al 2009). Within the Galactic Centre, at a distance of 8.2 kpc (GM SHOULD BE PC NOT KPC) (Gravity Collaboration et al 2019), there are several young high mass ( 10 4 M ) clusters including the Arches, Quintuplet and Galactic Centre clusters, plus a rich massive star population within the Central Molecular Zone (Clark et al 2021). We compare the present models to these clusters in Sect.…”
Section: Introductionmentioning
confidence: 99%
“…In particular the presence of 3 Wolf Rayet stars can be interpreted as an age estimator of the detected dissolved cluster(s) that agree with the estimated age of between 5 and 10 Myr. Furthermore, recent KMOS observations have detected evidence of an apparent over density of mid-O super-/hypergiants and WNLha-type stars spatially coincident with the Sgr B1 complex 29 . On the other hand, SOFIA FIFI-LS observations have shown that the ionized gas in the Sgr B1 region must be due to stars widely spread throughout the field, and pointed towards the presence of a young stellar population that were not formed in situ 7 .…”
mentioning
confidence: 99%