Matches in SemOpenAlex for { <https://semopenalex.org/work/W2277709536> ?p ?o ?g. }
- W2277709536 endingPage "2041" @default.
- W2277709536 startingPage "2028" @default.
- W2277709536 abstract "We present a study of the physical properties of the disc and tail of ESO137−001, a galaxy suffering from extreme ram-pressure stripping during its infall into the Norma cluster. With sensitive and spatially resolved MUSE (Multi Unit Spectroscopic Explorer) spectroscopy, we analyse the emission line diagnostics in the tail of ESO137−001, finding high values of [N ii]/Hα and [O i]/Hα that are suggestive of the presence of shocks in turbulent gas. However, the observed line ratios are not as strong as commonly seen in pure shock heating models, suggesting that other emission mechanisms may contribute to the observed emission. Indeed, part of the observed emission, particularly at close separations from the galaxy disc, may originate from recombination of photoionized gas stripped from the main body of ESO137−001. We also identify a large number of bright compact knots within in the tail, with line ratios characteristic of H ii regions. These H ii regions, despite residing in a stripped gas tail, have quite typical line ratios, densities, temperatures, and metallicity (∼0.7 solar). The majority of these H ii regions are embedded within diffuse gas from the tail, which is dynamically cool (σ ∼ 25–50 km s− 1). This fact, together with a lack of appreciable gradients in age and metallicity, suggests that these H ii regions formed in situ. While our analysis represents a first attempt to characterize the rich physics of the ESO137−001 tail, future work is needed to address the importance of other mechanisms, such as thermal conduction and magnetohydrodynamic waves, in powering the emission in the tail." @default.
- W2277709536 created "2016-06-24" @default.
- W2277709536 creator A5010271324 @default.
- W2277709536 creator A5023089957 @default.
- W2277709536 creator A5035893141 @default.
- W2277709536 creator A5064499053 @default.
- W2277709536 creator A5070153617 @default.
- W2277709536 creator A5080091223 @default.
- W2277709536 date "2015-11-19" @default.
- W2277709536 modified "2023-10-10" @default.
- W2277709536 title "MUSE sneaks a peek at extreme ram-pressure stripping events – II. The physical properties of the gas tail of ESO137−001" @default.
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