Results 71 to 80 of about 2,037,911 (340)

Chemical Abundances in the Metal-Poor Globular Cluster ESO 280-SC06: A Formerly Massive, Tidally Disrupted Globular Cluster

The Open Journal of Astrophysics
We present the first high-resolution abundance study of ESO 280-SC06, one of the least luminous and most metal-poor gravitationally bound Milky Way globular clusters.
Sam A Usman, Alexander P. Ji, Jandrie Rodriguez, Jeffrey D. Simpson, Sarah L. Martell, Ting S. Li, Ana Bonaca, Shivani Shah, Madeleine McKenzie   +8 more
doaj   +1 more source

CCD Photometry of the Globular Cluster M30 [PDF]

Journal of Astronomy and Space Sciences, 1996
We present UBV CCD photometry of the metal-poor globular cluster M30. The data were obtained using the 40 inch telescope at Mt. Stromlo and Siding Spring Observatory (MSSSO).
Hong-Suh Yim, Mun-Suk Chun, Young-Wook Lee   +2 more
doaj  

RR Lyrae and Type II Cepheid Variables in Globular Clusters: Optical and Infrared Properties [PDF]

, 2022
Anupam Bhardwaj
openalex   +1 more source

Contribution of stripped nuclear clusters to globular cluster and ultracompact dwarf galaxy populations [PDF]

, 2014
We use the Millennium II cosmological simulation combined with the semi-analytic galaxy formation model of Guo et al. to predict the contribution of galactic nuclei formed by the tidal stripping of nucleated dwarf galaxies to globular cluster (GC) and ...
J. Pfeffer, Brendan Griffen, H. Baumgardt, M. Hilker   +3 more
semanticscholar   +1 more source

The anti‐CRISPR protein AcrIE8.1 inhibits the type I‐E CRISPR‐Cas system by directly binding to the Cascade subunit Cas11

FEBS Letters, EarlyView.
In this study, we present the structure of AcrIE8.1, a previously uncharacterized anti‐CRISPR protein that inhibits the type I‐E CRISPR‐Cas system. Through a combination of structural and biochemical analyses, we demonstrate that AcrIE8.1 directly binds to the Cas11 subunit of the Cascade complex to inhibit the CRISPR‐Cas system.
Young Woo Kang, Hyun Ho Park
wiley   +1 more source

Contribution of Globular Clusters to Diffuse Gamma-Ray Emission from the Galactic Plane

The Astrophysical Journal
The diffuse Galactic gamma-ray emission (DGE) provides a valuable probe for investigating the cosmic-ray propagation and interactions within our Galactic environment.
Jiayin He, Houdun Zeng, Yi Zhang, Xiaoyuan Huang, Qiang Yuan   +4 more
doaj   +1 more source

The Globular Cluster Migratory Origin of Nuclear Star Clusters [PDF]

, 2014
Nuclear Star Clusters (NSCs) are often present in spiral galaxies as well as resolved Stellar Nuclei (SNi) in elliptical galaxies centres. Ever growing observational data indicate the existence of correlations between the properties of these very dense ...
M. Arca-Sedda, R. Capuzzo-Dolcetta
semanticscholar   +1 more source

Neutrino and axion bounds from the globular cluster M5 (NGC 5904). [PDF]

Physical Review Letters, 2013
The red-giant branch (RGB) in globular clusters is extended to larger brightness if the degenerate helium core loses too much energy in "dark channels." Based on a large set of archival observations, we provide high-precision photometry for the Galactic ...
N. Viaux, M. Catelán, P. Stetson, G. Raffelt, J. Redondo, A. Valcarce, A. Weiss   +6 more
semanticscholar   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

FEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang, Naoki Sunagawa, Toma Kashima, Kiyohiko Igarashi, Akimasa Miyanaga, Shinya Fushinobu   +5 more
wiley   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source