Results 61 to 70 of about 10,527 (159)

Das zirkumgalaktische Medium

Physik in unserer Zeit, Volume 56, Issue 1, Page 30-37, January 2025.
Galaxien wie die Milchstraße sind umhüllt von einem gigantischen Kokon aus diffusem Gas. Aktuelle Forschungsergebnisse belegen, dass dieses zirkumgalakische Medium eine entscheidende Rolle für die Entstehung und Entwicklung von Galaxien spielt. Zusammenfassung Als zirkumgalaktisches Medium bezeichnet man die gasförmigen Hüllen von Galaxien, die sich ...
Philipp Richter
wiley   +1 more source

The distribution of gas in the Local Group from constrained cosmological simulations: the case for Andromeda and the Milky Way galaxies

, 2014
We study the gas distribution in the Milky Way and Andromeda using a constrained cosmological simulation of the Local Group (LG) within the context of the CLUES (Constrained Local UniversE Simulations) project.
Gottloeber, Stefan, Nuza, Sebastian E., Parisi, Florencia, Richter, Philipp, Scannapieco, Cecilia, Steinmetz, Matthias   +5 more
core   +1 more source

Critical steps in an environmental metaproteomics workflow

Environmental Microbiology, Volume 26, Issue 5, May 2024.
Metaproteomics, a potent yet underutilized tool, reveals the complexities of microbial communities. Our review emphasizes its accessibility and provides diverse workflow descriptions tailored to various environmental matrices. We aim to convince readers of its capability to unravel the structural, dynamic, and metabolic nuances within microbial ...
Daniel J. Nebauer, Leanne A. Pearson, Brett A. Neilan   +2 more
wiley   +1 more source

Tidal stripping as a mechanism for placing globular clusters on wide orbits: the case of MGC1 in M31

, 2019
The globular clusters of large spiral galaxies can be divided into two populations: one which formed in-situ and one which comprises clusters tidally stripped away from other galaxies.
Andersson, Eric P., Davies, Melvyn B.
core   +1 more source

Deep Optical Photometry of Six Fields in the Andromeda Galaxy [PDF]

, 2009
Using the Advanced Camera for Surveys on the Hubble Space Telescope, we have obtained deep optical images reaching well below the oldest main sequence turnoff in six fields of the Andromeda Galaxy. The fields fall at four positions on the southeast minor
Brown, Thomas M., Ferguson, Henry C., Guhathakurta, Puragra, Kalirai, Jason S., Kimble, Randy A., Renzini, Alvio, Rich, R. Michael, Smith, Ed, Sweigart, Allen V., VandenBerg, Don A.   +9 more
core   +1 more source

A dual‐omics approach on the effects of fibroblast growth factor‐2 (FGF‐2) on ventral tegmental area dopaminergic neurons in response to alcohol consumption in mice

European Journal of Neuroscience, Volume 59, Issue 7, Page 1519-1535, April 2024.
FGF‐2 knockout (KO) results in reduced alcohol consumption and preference in the two‐bottle choice mouse model over 6 weeks of 20% voluntary alcohol access. Loss of FGF‐2 leads to the downregulation of Otx2, Igf1 and Lpl, as well as the upregulation of Vgat, Lmx1a, Foxa2, Ndnf, Chrna4 and Sat1b, genes specific for DAergic subpopulations.
Leonie Hose, Alina Katharina Langenhagen, Ekaterini Kefalakes, Theresa Schweitzer, Sabrina Kubinski, Segev Barak, Andreas Pich, Claudia Grothe   +7 more
wiley   +1 more source

On the Adromeda to Milky Way mass-ratio

, 2009
We have explored the hypothesis that the total mass-ratio of the two main galaxies of the Local Group: Andromeda Galaxy(M31) and the Milky Way (MW) can be constrained measuring the tidal force induced by the surrounding mass distribution, M31 included ...
Baiesi Pillastrini, Battaglia, Bellazzini, Belokurov, Belokurov, Belokurov, Besla, Cen, Dehnen, Diemand, Evans, Evans, Evans, Giovanni C. Baiesi Pillastrini, Gottesman, Grcevich, Irwin, Kalberla, Karachentsev, Karachentsev, Klypin, Koposov, Li, Lin, Loeb, Madau, Majewski, Martin, Muñoz, Pasetto, Peebles, Peebles, Penarrubia, Ramella, Sakamoto, Seigar, Shattow, Simon, Smith, Sohn, Tollerud, Walker, Walsh, Wilkinson, Willman, Willman, Xue, Young, Young, Zaristky, Zucker, Zucker, Zucker, Zucker   +53 more
core   +1 more source

Gamma-Rays from Dark Matter Mini-Spikes in M31 [PDF]

, 2007
The existence of a population of wandering Intermediate Mass Black Holes (IMBHs) is a generic prediction of scenarios that seek to explain the formation of Supermassive Black Holes in terms of growth from massive seeds.
Gianfranco Bertone, J. J. Geehan, Marco Taoso, Mattia Fornasa   +3 more
core   +2 more sources

THE DISTRIBUTION OF ALPHA ELEMENTS IN ANDROMEDA DWARF GALAXIES [PDF]

The Astrophysical Journal, 2014
We present alpha to iron abundance ratios for 226 individual red giant branch stars in nine dwarf galaxies of the Andromeda (M 31) satellite system. The abundances are measured from the combined signal of Mg, Si, Ca, and Ti lines in Keck/DEIMOS medium-resolution spectra.
Vargas, Luis C., Geha, Marla C., Tollerud, Erik J.   +2 more
openaire   +2 more sources

Causal theories of spacetime

Noûs, Volume 58, Issue 1, Page 202-224, March 2024.
Abstract We develop a new version of the causal theory of spacetime. Whereas traditional versions of the theory seek to identify spatiotemporal relations with causal relations, the version we develop takes causal relations to be the grounds for spatiotemporal relations. Causation is thus distinct from, and more basic than, spacetime. We argue that this
Sam Baron, Baptiste Le Bihan
wiley   +1 more source