Results 31 to 40 of about 77,093 (285)

Stellar Bars in Isolated Gas-rich Spiral Galaxies Do Not Slow Down

The Astrophysical Journal, 2023
Elongated bar-like features are ubiquitous in galaxies, occurring at the centers of approximately two-thirds of spiral disks in the nearby Universe. Due to gravitational interactions between the bar and the other components of galaxies, it is expected ...
Angus Beane, Lars Hernquist, Elena D’Onghia, Federico Marinacci, Charlie Conroy, Jia Qi, Laura V. Sales, Paul Torrey, Mark Vogelsberger   +8 more
doaj   +1 more source

Disentangling Stellar Age Estimates from Galactic Chemodynamical Evolution

The Astrophysical Journal, 2023
Stellar ages are key for determining the formation history of the Milky Way, but are difficult to measure precisely. Furthermore, methods that use chemical abundances to infer ages may entangle the intrinsic evolution of stars with the chemodynamical ...
Jeff Shen, Joshua S. Speagle, J. Ted Mackereth, Yuan-Sen Ting, Jo Bovy   +4 more
doaj   +1 more source

4MOST Consortium Survey 3: Milky Way Disc and Bulge Low-Resolution Survey (4MIDABLE-LR)

, 2019
The mechanisms of the formation and evolution of the Milky Way are encoded in the orbits, chemistry and ages of its stars. With the 4MOST MIlky way Disk And BuLgE Low-Resolution Survey (4MIDABLE-LR) we aim to study kinematic and chemical substructures in
Anders, F., Andrae, R., Arentsen, A., Asplund, M., Bensby, T., Bergemann, M., Casagrande, L., Cescutti, G., Chiappini, C., Church, R., Feltzing, S., Fouesneau, M., Fusillo, N., Gerhard, O., Grebel, E., Guiglion, G., Khalatyan, A., Kordopatis, G., Kovalev, M., Lemasle, B., Matijevic, G., McMillan, P., Minchev, I., Monari, G., Queiroz, A., Rix, H., Rybizki, J., Ryde, N., Schwope, A., Starkenburg, E., Steinmetz, M., Storm, J., Team, 4., Traven, G., Tremblay, P., Valentini, M., Walton, N., Xiang, M., Zucker, D.   +38 more
core   +1 more source

Black Hole Starvation and Bulge Evolution in a Milky Way-like Galaxy [PDF]

, 2015
We present a new zoom-in hydrodynamical simulation, "Erisbh", which follows the cosmological evolution and feedback effects of a supermassive black hole at the center of a Milky Way-type galaxy.
Bellovary, Jillian, Bonoli, Silvia, Governato, Fabio, Kazantzidis, Stelios, Madau, Piero, Mayer, Lucio   +5 more
core   +2 more sources

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

FEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf, Nicholas F. Downing, Kaitlyn M. Mills, Samuel C. Metcalfe, Alexander E. Kritzer, Lindsey D. Mayo, Peter C. Hollenhorst   +6 more
wiley   +1 more source

Structure and Evolution of the Milky Way Galaxy [PDF]

International Astronomical Union Colloquium, 1989
AbstractThe combination of chemical abundance, kinematic, and age data for stars near the sun provides important information about the early evolution of the Galaxy. We review available data, with some new analysis, to show that the sum of all available information strongly suggests that the extreme population II subdwarf system formed during a period ...
Gerard Gilmore, Rosemary F.G. Wyse
openaire   +1 more source

Why is the Milky Way X-factor Constant? [PDF]

, 2013
The CO-H2 conversion factor (Xco; otherwise known as the X-factor) is observed to be remarkably constant in the Milky Way and in the Local Group (aside from the SMC). To date, our understanding of why Xco should be so constant remains poor.
Hopkins, Philip, Narayanan, Desika
core   +2 more sources

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

FEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Observational Constraints of Radial Migration in the Galactic Disk Driven by the Slowing Bar

The Astrophysical Journal Letters
Radial migration is an important dynamical effect that has reshaped the Galactic disk, but its origin has yet to be elucidated. In this work, we present evidence that resonant dragging by the corotation of a decelerating bar could be the main driver of ...
HanYuan Zhang, Vasily Belokurov, N. Wyn Evans, Jason L. Sanders, Yuxi(Lucy) Lu, Chengye Cao, GyuChul Myeong, Adam M. Dillamore, Sarah G. Kane, Zhao-Yu Li   +9 more
doaj   +1 more source

A confirmed location in the Galactic halo for the high-velocity cloud 'chain A' [PDF]

, 1999
The high-velocity clouds of atomic hydrogen, discovered about 35 years ago, have velocities inconsistent with simple Galactic rotation models that generally fit the stars and gas in the Milky Way disk.
Kalberla, Peter M. W., Peletier, Reynier F., Schwarz, Ulrich J., van Woerden, Hugo, Wakker, Bart P.   +4 more
core   +4 more sources