Results 11 to 20 of about 51,949 (176)

The connection between the host halo and the satellite galaxies of the Milky Way [PDF]

, 2016
Many properties of the Milky Way's dark matter halo, including its mass assembly history, concentration, and subhalo population, remain poorly constrained.
Benson, Andrew, Boylan-Kolchin, Michael, Lu, Yu, Mao, Yao-Yuan, Peter, Annika H. G., Tonnesen, Stephanie, Wechsler, Risa H., Wetzel, Andrew R.   +7 more
core   +3 more sources

Investigating halo substructures with annual modulation signature [PDF]

, 2006
Galaxy hierarchical formation theories, numerical simulations, the discovery of the Sagittarius Dwarf Elliptical Galaxy (SagDEG) in 1994 and more recent investigations suggest that the dark halo of the Milky Way can have a rich phenomenology containing ...
Belli, P., Bernabei, R., Cappella, F., Cerulli, R., Dai, C. J., Giuffrida, G., He, H. L., Incicchitti, A., Kuang, H. H., Ma, J. M., Martinez, M., Montecchia, F., Nozzoli, F., Prosperi, D., Sheng, X. D., Ye, Z. P.   +15 more
core   +2 more sources

Novel constraints on fermionic dark matter from galactic observables I: The Milky Way [PDF]

, 2018
We have recently introduced a new model for the distribution of dark matter (DM) in galaxies based on a self-gravitating system of massive fermions at finite temperatures, the Ruffini-Arg\"uelles-Rueda (RAR) model.
Argüelles, C. R., Krut, A., Rueda, J. A., Ruffini, R.   +3 more
core   +3 more sources

A fundamental test for stellar feedback recipes in galaxy simulations [PDF]

, 2019
Direct comparisons between galaxy simulations and observations that both reach scales < 100 pc are strong tools to investigate the cloud-scale physics of star formation and feedback in nearby galaxies.
Chevance, Mélanie, Fujimoto, Yusuke, Haydon, Daniel T., Kruijssen, J. M. Diederik, Krumholz, Mark R.   +4 more
core   +2 more sources

Thin disc, Thick Disc and Halo in a Simulated Galaxy [PDF]

, 2012
Within a cosmological hydrodynamical simulation, we form a disc galaxy with sub- components which can be assigned to a thin stellar disc, thick disk, and a low mass stellar halo via a chemical decomposition.
A. V. Macciò, Abadi, Abadi, Agertz, Assmann, B. K. Gibson, Bekki, Bensby, Bensby, Bensby, Bensby, Bournaud, Bovy, Bovy, Brook, Brook, Brook, Brook, Brooks, C. B. Brook, Ceverino, Chiappini, Chiba, D. Kawata, Dalcanton, De Silva, Doménech-Moral, E. L. House, Fenner, Freeman, Freyer, Fuhrmann, Fuhrmann, G. S. Stinson, Gilmore, Governato, Guedes, Hammer, Hayashi, House, Ivezić, J. Wadsley, Jurić, K. Pilkington, Katz, Kazantzidis, Kereš, Kobayashi, Kroupa, Loebman, M. S. Miranda, Majewski, Martig, Navarro, Noguchi, Nomoto, Nordström, Okamoto, Pilkington, Piontek, Qu, Quillen, Quinn, R. Roškar, Reddy, Robertson, Ruchti, Sales, Samland, Sawala, Scannapieco, Scannapieco, Schönrich, Shen, Smiljanic, Soubiran, Stinson, Stinson, T. R. Quinn, Tissera, Torres, Villalobos, Wadsley, Woosley, Wyse, Yoachim, Yoachim, Zolotov   +87 more
core   +5 more sources

Dark Matter and Galaxy Formation: Challenges for the Next Decade [PDF]

, 2004
The origin of the galaxies represents an important focus of current cosmological research, both observational and theoretical. Its resolution involves a comprehensive understanding of star formation, galaxy dynamics, the cosmology of the very early ...
Silk, Joseph
core   +3 more sources

The origin of the Milky Way globular clusters [PDF]

, 2016
We present a cosmological zoom-in simulation of a Milky Way-like galaxy used to explore the formation and evolution of star clusters. We investigate in particular the origin of the bimodality observed in the colour and metallicity of globular clusters ...
Agertz, Oscar, Gieles, Mark, Renaud, Florent   +2 more
core   +2 more sources

A Framework for Modeling Polycyclic Aromatic Hydrocarbon Emission in Galaxy Evolution Simulations

The Astrophysical Journal, 2023
We present a new methodology for simulating mid-infrared emission from polycyclic aromatic hydrocarbons (PAHs) in galaxy evolution simulations. To do this, we combine theoretical models of PAH emission features as they respond to varying interstellar ...
Desika Narayanan, J.-D. T. Smith, Brandon S. Hensley, Qi Li, Chia-Yu Hu, Karin Sandstrom, Paul Torrey, Mark Vogelsberger, Federico Marinacci, Laura V. Sales   +9 more
doaj   +1 more source

Fermionic Dark Matter: Physics, Astrophysics, and Cosmology

Universe, 2023
The nature of dark matter (DM) is one of the most relevant questions in modern astrophysics. We present a brief overview of recent results that inquire into the possible fermionic quantum nature of the DM particles, focusing mainly on the interconnection
C. R. Argüelles, E. A. Becerra-Vergara, J. A. Rueda, R. Ruffini   +3 more
doaj   +1 more source

A Physical Interpretation of Milky Way Galaxy Dynamics from Precision Astrometrics

, 2020
The dynamical and virial mass of the Milky Way galaxy is estimated using latest high precision stellar halo and dwarf galaxy satellite kinematics. The new data suggest the Galaxy is a highly compact, classically thermalized object. Kinematics exhibit significant velocity-spatial substructure, distinctive dynamic partitions, and strong Keplerian ...
openaire   +2 more sources