Results 51 to 60 of about 43,519 (315)

The Three-phase Evolution of the Milky Way

The Astrophysical Journal
We illustrate the formation and evolution of the Milky Way over cosmic time, utilizing a sample of 10 million red giant stars with full chemodynamical information, including metallicities and α -abundances from low-resolution Gaia XP spectra.
Vedant Chandra, Vadim A. Semenov, Hans-Walter Rix, Charlie Conroy, Ana Bonaca, Rohan P. Naidu, René Andrae, Jiadong Li, Lars Hernquist   +8 more
doaj   +1 more source

Structure, Kinematics, and Observability of the Large Magellanic Cloud’s Dynamical Friction Wake in Cold versus Fuzzy Dark Matter

The Astrophysical Journal, 2023
The Large Magellanic Cloud (LMC) will induce a dynamical friction (DF) wake on infall to the Milky Way (MW). The MW’s stellar halo will respond to the gravity of the LMC and the dark matter (DM) wake, forming a stellar counterpart to the DM wake.
Hayden R. Foote, Gurtina Besla, Philip Mocz, Nicolás Garavito-Camargo, Lachlan Lancaster, Martin Sparre, Emily C. Cunningham, Mark Vogelsberger, Facundo A. Gómez, Chervin F. P. Laporte   +9 more
doaj   +1 more source

Galactic fountains and the rotation of disc-galaxy coronae [PDF]

, 2011
In galaxies like the Milky Way, cold (~ 10^4 K) gas ejected from the disc by stellar activity (the so-called galactic-fountain gas) is expected to interact with the virial-temperature (~ 10^6 K) gas of the corona.
Anderson, Barnabè, Binney, Binney, Bregman, Bregman, Carlo Nipoti, Collins, Del Zanna, Del Zanna, Federico Marinacci, Filippo Fraternali, Fox, Fraternali, Fraternali, Fraternali, Fraternali, Fukugita, Fukugita, Heald, Houck, James Binney, Kaufmann, Komatsu, Lebovitz, Luca Ciotti, Marasco, Marinacci, Marinacci, Melioli, Nipoti, Oosterloo, Pasquale Londrillo, Rasmussen, Sarazin, Sembach, Shapiro, Shull, Spitzer, Struck, Sutherland, Swaters, Tassoul, Yao   +43 more
core   +3 more sources

Multidimensional OMICs reveal ARID1A orchestrated control of DNA damage, splicing, and cell cycle in normal‐like and malignant urothelial cells

Molecular Oncology, EarlyView.
Loss of the frequently mutated chromatin remodeler ARID1A, a subunit of the SWI/SNF cBAF complex, results in less open chromatin, alternative splicing, and the failure to stop cells from progressing through the cell cycle after DNA damage in bladder (cancer) cells. Created in BioRender. Epigenetic regulators, such as the SWI/SNF complex, with important
Rebecca M. Schlösser, Florian Krumbach, Eyleen Corrales, Geoffroy Andrieux, Christian Preisinger, Franziska Liss, Alexandra Golzmann, Melanie Boerries, Kerstin Becker, Ruth Knüchel, Stefan Garczyk, Bernhard Lüscher   +11 more
wiley   +1 more source

Dark Matter distribution in the Milky Way: microlensing and dynamical constraints [PDF]

Journal of Cosmology and Astroparticle Physics, 2011
We show that current microlensing and dynamical observations of the Galaxy permit to set interesting constraints on the Dark Matter local density and profile slope towards the galactic centre. Assuming state-of-the-art models for the distribution of baryons in the Galaxy, we find that the most commonly discussed Dark Matter profiles (viz. Navarro-Frenk-
Gianfranco Bertone, Gianfranco Bertone, Miguel Pato, Fabio Iocco, Philippe Jetzer   +4 more
openaire   +5 more sources

Dynamical stability and evolution of the discs of Sc galaxies [PDF]

, 1997
We examine the local stability of galactic discs against axisymmetric density perturbations with special attention to the different dynamics of the stellar and gaseous components. In particular the discs of the Milky Way and of NGC 6946 are studied.
Fuchs, B., von Linden, S.
core   +3 more sources

Escape from TGF‐β‐induced senescence promotes aggressive hallmarks in epithelial hepatocellular carcinoma cells

Molecular Oncology, EarlyView.
Chronic TGF‐β exposure drives epithelial HCC cells from a senescent state to a TGF‐β resistant mesenchymal phenotype. This transition is characterized by the loss of Smad3‐mediated signaling, escape from senescence, enhanced invasiveness and metastatic potential, and upregulation of key resistance modulators such as MARK1 and GRM8, ultimately promoting
Minenur Kalyoncu, Dilara Demirci, Sude Eris, Bengisu Dayanc, Ece Cakiroglu, Merve Basol, Merve Uysal, Gulcin Cakan‐Akdogan, Fang Liu, Mehmet Ozturk, Gökhan Karakülah, Serif Senturk   +11 more
wiley   +1 more source

Deciphering the Kinematic Substructure of Local Dark Matter with LAMOST K Giants

The Astrophysical Journal
Numerical simulations indicate that correlations exist between the velocity distributions of stars and dark matter (DM). We study the local DM velocity distribution based on these correlations.
Hai Zhu, Rui Guo, Juntai Shen, Jianglai Liu, Chao Liu, Xiang-Xiang Xue, Lan Zhang, Shude Mao   +7 more
doaj   +1 more source

Milky Way globular cluster dynamics: are they preferentially co-rotating? [PDF]

Research in Astronomy and Astrophysics, 2020
Abstract The motion of baryonic components of the Milky Way is governed by both luminous and dark matter content of the Galaxy. Thus, the dynamics of Milky Way globular clusters (GCs) can be used as tracers to infer the mass model of the Galaxy up to a large radius.
Saikat Das, Nirupam Roy
openaire   +3 more sources

Galactic kinematics with modified Newtonian dynamics

, 2009
We look for observational signatures that could discriminate between Newtonian and modified Newtonian (MOND) dynamics in the Milky Way, in view of the advent of large astrometric and spectroscopic surveys.
Angus, Angus, B. Famaey, Bekenstein, Bienaymé, Bienaymé, Bournaud, Brada, Bruneton, Ciotti, Crézé, Cuddeford, D. Aubert, Dehnen, Famaey, Famaey, Famaey, Famaey, Fuchs, Gentile, Grillmair, Grillmair, H. S. Zhao, Haghi, Helmi, Hog, Holmberg, Holmberg, Hori, Ibata, Lynden-Bell, McGaugh, Milgrom, Milgrom, Milgrom, Nipoti, Nordström, O. Bienaymé, Ollongren, Ollé, Oort, Perryman, Read, Read, Robin, Sanders, Siebert, Siebert, Smith, Soubiran, Steinmetz, Tiret, Wu, X. Wu, Zhao, Zhao, Zwitter   +56 more
core   +2 more sources