Outputs (144)

Impacts of Bar-driven Shear and Shocks on Star Formation (2024)
Journal Article
Kim, T., Gadotti, D. A., Querejeta, M., Pérez, I., Zurita, A., Neumann, J., …Park, M.-G. (2024). Impacts of Bar-driven Shear and Shocks on Star Formation. The Astrophysical Journal, 968(2), Article 87. https://doi.org/10.3847/1538-4357/ad410e

Bars drive gas inflow. As the gas flows inward, shocks and shear occur along the bar dust lanes. Such shocks and shear can affect the star formation (SF) and change the gas properties. For four barred galaxies, we present Hα velocity gradient maps th... Read More about Impacts of Bar-driven Shear and Shocks on Star Formation.

A JWST investigation into the bar fraction at redshifts 1 ≤ z ≤ 3 (2024)
Journal Article
Le Conte, Z. A., Gadotti, D. A., Ferreira, L., Conselice, C. J., de Sá-Freitas, C., Kim, T., …Adams, N. J. (2024). A JWST investigation into the bar fraction at redshifts 1 ≤ z ≤ 3. Monthly Notices of the Royal Astronomical Society, 530(2), 1984-2000. https://doi.org/10.1093/mnras/stae921

The presence of a stellar bar in a disc galaxy indicates that the galaxy hosts in its main part a dynamically settled disc and that bar-driven processes are taking place in shaping its evolution. Studying the cosmic evolution of the bar fraction in d... Read More about A JWST investigation into the bar fraction at redshifts 1 ≤ z ≤ 3.

The universal variability of the stellar initial mass function probed by the TIMER survey (2024)
Journal Article
Martín-Navarro, I., de Lorenzo-Cáceres, A., Gadotti, D. A., Méndez-Abreu, J., Falcón-Barroso, J., Sánchez-Blázquez, P., …Pérez, I. (2024). The universal variability of the stellar initial mass function probed by the TIMER survey. Astronomy & Astrophysics, 684, Article A110. https://doi.org/10.1051/0004-6361/202348060

The debate about the universality of the stellar initial mass function (IMF) revolves around two competing lines of evidence. While measurements in the Milky Way, an archetypal spiral galaxy, seem to support an invariant IMF, the observed properties... Read More about The universal variability of the stellar initial mass function probed by the TIMER survey.

Bar properties as a function of wavelength: a local baseline with S4G for high-redshift studies (2023)
Journal Article
Menéndez-Delmestre, K., Gonçalves, T. S., Sheth, K., Düringer Jacques de Lima, T., Kim, T., Gadotti, D. A., …Salo, H. (2023). Bar properties as a function of wavelength: a local baseline with S4G for high-redshift studies. Monthly Notices of the Royal Astronomical Society, 527(4), 11777-11800. https://doi.org/10.1093/mnras/stad3662

The redshift evolution of bars is an important signpost of the dynamic maturity of disc galaxies. To characterize the intrinsic evolution safe from band-shifting effects, it is necessary to gauge how bar properties vary locally as a function of wavel... Read More about Bar properties as a function of wavelength: a local baseline with S4G for high-redshift studies.

Composite Bulges. III. A Study of Nuclear Star Clusters in Nearby Spiral Galaxies (2023)
Journal Article
Ashok, A., Seth, A., Erwin, P., Debattista, V. P., de Lorenzo-Cáceres, A., Gadotti, D. A., …Thomas, J. (2023). Composite Bulges. III. A Study of Nuclear Star Clusters in Nearby Spiral Galaxies. Astrophysical Journal, 958(1), Article 100. https://doi.org/10.3847/1538-4357/ace341

We present photometric and morphological analyses of nuclear star clusters (NSCs)—very dense, massive star clusters present in the central regions of most galaxies—in a sample of 33 massive disk galaxies within 20 Mpc, part of the “Composite Bulges S... Read More about Composite Bulges. III. A Study of Nuclear Star Clusters in Nearby Spiral Galaxies.

Disc galaxies are still settling: Discovery of the smallest nuclear discs and their young stellar bars (2023)
Journal Article
de Sá-Freitas, C., Gadotti, D. A., Fragkoudi, F., Coccato, L., Coelho, P., de Lorenzo-Cáceres, A., …van de Ven, G. (2023). Disc galaxies are still settling: Discovery of the smallest nuclear discs and their young stellar bars. Astronomy & Astrophysics, 678, Article A202. https://doi.org/10.1051/0004-6361/202347028

When galactic discs settle and become massive enough, they are able to form stellar bars. These non-axisymmetric structures induce shocks in the gas, causing it to flow to the centre where nuclear structures, such as nuclear discs and rings, are form... Read More about Disc galaxies are still settling: Discovery of the smallest nuclear discs and their young stellar bars.

On the accretion of a new group of galaxies onto Virgo – III. The stellar population radial gradients of dEs (2023)
Journal Article
Bidaran, B., La Barbera, F., Pasquali, A., van de Ven, G., Peletier, R., Falcón-Barroso, J., …Grebel, E. K. (2023). On the accretion of a new group of galaxies onto Virgo – III. The stellar population radial gradients of dEs. Monthly Notices of the Royal Astronomical Society, 525(3), 4329–4346. https://doi.org/10.1093/mnras/stad2546

Composite bulges – IV. Detecting signatures of gas inflows in the IFU data: the MUSE view of ionized gas kinematics in NGC 1097 (2023)
Journal Article
Kolcu, T., Maciejewski, W., Gadotti, D. A., Fragkoudi, F., Erwin, P., Sánchez-Blázquez, P., …Debattista, V. P. (2023). Composite bulges – IV. Detecting signatures of gas inflows in the IFU data: the MUSE view of ionized gas kinematics in NGC 1097. Monthly Notices of the Royal Astronomical Society, 524(1), 207-223. https://doi.org/10.1093/mnras/stad1896

Using VLT/MUSE integral-field spectroscopic data for the barred spiral galaxy NGC 1097, we explore techniques that can be used to search for extended coherent shocks that can drive gas inflows in centres of galaxies. Such shocks should appear as cohe... Read More about Composite bulges – IV. Detecting signatures of gas inflows in the IFU data: the MUSE view of ionized gas kinematics in NGC 1097.

The Fornax3D project: Environmental effects on the assembly of dynamically cold disks in Fornax cluster galaxies (2023)
Journal Article
Ding, Y., Zhu, L., van de Ven, G., Coccato, L., Corsini, E. M., Costantin, L., …Sarzi, M. (2023). The Fornax3D project: Environmental effects on the assembly of dynamically cold disks in Fornax cluster galaxies. Astronomy & Astrophysics, 672, Article A84. https://doi.org/10.1051/0004-6361/202244558

We apply a population-orbit superposition metho1d to 16 galaxies in the Fornax cluster observed with MUSE/VLT in the context of the Fornax3D project. By fitting the luminosity distribution, stellar kinematics, and age and metallicity maps simultaneou... Read More about The Fornax3D project: Environmental effects on the assembly of dynamically cold disks in Fornax cluster galaxies.

Evidence of an age gradient along the line of sight in the nuclear stellar disc of the Milky Way (2023)
Journal Article
Nogueras-Lara, F., Schultheis, M., Najarro, F., Sormani, M., Gadotti, D., & Rich, R. (2023). Evidence of an age gradient along the line of sight in the nuclear stellar disc of the Milky Way. Astronomy & Astrophysics, 671, Article L10. https://doi.org/10.1051/0004-6361/202345941

Context. The nuclear stellar disc (NSD) is a flat dense stellar structure at the heart of the Milky Way. Recent work has shown that analogous structures are common in the nuclei of external spiral galaxies, where there is evidence of an age gradient... Read More about Evidence of an age gradient along the line of sight in the nuclear stellar disc of the Milky Way.