105 citations · 159 across the 8 of their papers we have counts for
8 papers
Dynamical properties of high-[Mg/Fe] stars in the Milky Way bar region
Aakash Pandey, Ortwin Gerhard
The origin of the high-alpha component of the Galactic bulge remains debated, unlike the bar-driven origin of the low-alpha bulge. We examine the metallicity-dependent dynamical pr…
Orbital Support and Evolution of CX/OX Structures in Boxy/Peanut Bars
Behzad Tahmasebzadeh, Shashank Dattathri, Monica Valluri +7
Barred galaxies exhibit boxy/peanut or X-shapes (BP/X) protruding from their disks in edge-on views. Two types of BP/X morphologies exist depending on whether the X-wings meet at t…
Shapes of dark matter haloes with discrete globular cluster dynamics: The example of NGC 5128 (Centaurus A)
Tadeja Veršič, Marina Rejkuba, Magda Arnaboldi +7
Within the CDM cosmology, dark matter haloes are expected to deviate from spherical symmetry. Constraining the halo shapes at large galactocentric distances is challenging due t…
Bar-driven Gas Dynamics of M31
Zi-Xuan Feng, Zhi Li, Juntai Shen +5
The large-scale gaseous shocks in the bulge of M31 can be naturally explained by a rotating stellar bar. We use gas dynamical models to provide an independent measurement of the ba…
Schwarzschild Modeling of Barred S0 Galaxy NGC 4371
Behzad Tahmasebzadeh, Ling Zhu, Juntai Shen +15
We apply the barred Schwarzschild method developed by Tahmasebzadeh et al. (2022) to a barred S0 galaxy, NGC 4371, observed by IFU instruments from the TIMER and ATLAS3D projects.…
The flattening of dark matter halo of Centaurus A galaxy (NGC 5128) out to 40 kpc
Tadeja Veršič, Marina Rejkuba, Magda Arnaboldi +4
Cosmological simulations predict dark matter shapes that deviate from spherical symmetry. The exact shape depends on the prescription of the simulation and the interplay between da…
Resolving the Disc-Halo Degeneracy I: A Look at NGC 628
S. Aniyan, K. C. Freeman, M. Arnaboldi +6
The decomposition of the rotation curve of galaxies into contribution from the disc and dark halo remains uncertain and depends on the adopted mass to light ratio (M/L) of the disc…
The old and heavy bulge of M31 I. Kinematics and stellar populations
R. P. Saglia, M. Fabricius, R. Bender +7
We present new optical long-slit data along 6 position angles of the bulge region of M31. We derive accurate stellar and gas kinematics reaching 5 arcmin from the center, where the…