Matches in SemOpenAlex for { <https://semopenalex.org/work/W2524218348> ?p ?o ?g. }
- W2524218348 endingPage "1922" @default.
- W2524218348 startingPage "1903" @default.
- W2524218348 abstract "We infer the central mass distributions within 0.4-1.2 disc scale lengths of 18 late-type spiral galaxies using two different dynamical modelling approaches - the Asymmetric Drift Correction (ADC) and axisymmetric Jeans Anisotropic Multi-gaussian expansion (JAM) model. ADC adopts a thin disc assumption, whereas JAM does a full line-of-sight velocity integration. We use stellar kinematics maps obtained with the integral-field spectrograph SAURON to derive the corresponding circular velocity curves from the two models. To find their best-fit values, we apply Markov Chain Monte Carlo (MCMC) method. ADC and JAM modelling approaches are consistent within 5% uncertainty when the ordered motions are significant comparable to the random motions, i.e, $overline{v_{phi}}/sigma_R$ is locally greater than 1.5. Below this value, the ratio $v_mathrm{c,JAM}/v_mathrm{c,ADC}$ gradually increases with decreasing $overline{v_{phi}}/sigma_R$, reaching $v_mathrm{c,JAM}approx 2 times v_mathrm{c,ADC}$. Such conditions indicate that the stellar masses of the galaxies in our sample are not confined to their disk planes and likely have a non-negligible contribution from their bulges and thick disks." @default.
- W2524218348 created "2016-10-07" @default.
- W2524218348 creator A5005870132 @default.
- W2524218348 creator A5017908675 @default.
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- W2524218348 creator A5023699178 @default.
- W2524218348 creator A5051770664 @default.
- W2524218348 creator A5071176707 @default.
- W2524218348 date "2016-09-27" @default.
- W2524218348 modified "2023-09-27" @default.
- W2524218348 title "The inner mass distribution of late-type spiral galaxies from<tt>SAURON</tt>stellar kinematic maps" @default.
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