Results 61 to 70 of about 1,255,310 (311)

Color Magnitude Diagrams: Globular Clusters

, 2020
Through this project, I analyze globular star clusters using HR diagrams to study their isochrones (essentially, predicting the age of a stellar globular cluster through the analysis of the flux and temperature of the stars that are part of the cluster)
Arnav Das
core   +1 more source

Gravitational Radiation from Globular Clusters [PDF]

, 1999
Space-based gravitational wave detectors will have the ability to observe continuous low-frequency gravitational radiation from binary star systems. They can determine the direction to continuous sources with an angular resolution approaching tens of ...
M. Benacquista, Benacquista, M.
core   +1 more source

The Spectroscopic and Photometric Study of a Star Cluster Sample in Andromeda Halo

The Astronomical Journal
Halo star clusters serve as vital tracers for the formation and evolution of the Andromeda galaxy. In this work, we present physical parameters for 29 M31 halo star clusters, derived from a combination of spectroscopic and photometric data.
Hongrui Gu, Zhou Fan, Bingqiu Chen, Xiaoying Pang, Juanjuan Ren, Ruizheng Jiang, Song Wang, Kefeng Tan, Nan Song, Chun Li, Jie Zheng, Gang Zhao, Wei Wang, Yuqin Chen, Jingkun Zhao, Haining Li, Yihan Song, Haibo Yuan, Ali Luo, Yujuan Liu, Yaqian Wu   +20 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

The Spatial Distribution of Intracluster Globular Clusters in the Fornax Cluster

The Astrophysical Journal
We investigate the spatial distribution of the intracluster globular clusters (ICGCs) detected in the core of the Fornax galaxy cluster. By separately modeling different components of the observed population of globular clusters (GCs), we confirm the ...
Raffaele D’Abrusco, Marco Mirabile, Michele Cantiello, Enrica Iodice, Avinash Chaturvedi, Michael Hilker, Giuseppina Fabbiano, Marilena Spavone, Maurizio Paolillo   +8 more
doaj   +1 more source

Rotation of Horizontal‐Branch Stars in Globular Clusters [PDF]

The Astrophysical Journal, 2000
The rotation of horizontal branch stars places important constraints on angular momentum evolution in evolved stars and therefore rotational mixing on the giant branch. Prompted by new observations of rotation rates of horizontal branch stars, we calculate simple models for the angular momentum evolution of a globular cluster giant star from the base ...
Sills, Alison, Pinsonneault, M. H.
openaire   +3 more sources

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source

The dynamical mass of the young cluster W3 in NGC 7252. Heavy-weight globular cluster or ultra compact dwarf galaxy? [PDF]

, 2004
We have determined the dynamical mass of the most luminous stellar cluster known to date, i.e. object W3 in the merger remnant galaxy NGC 7252. The dynamical mass is estimated from the velocity dispersion measured with the high-resolution spectrograph ...
Schweizer, F., P. Goudfrooij, N. Bastian, Saglia, R., M. Kissler-Patig, Kissler-Patig, Markus, Bastian, N., Saglia, Roberto P., Goudfrooij, P., Goudfrooij, Paul, Saglia, R.P., Kissler-Patig, M., Maraston, Claudia, F. Schweizer, Maraston, C., C. Maraston, R. P. Saglia   +16 more
core   +1 more source

Rotation and Hα Emission in a Young SMC Cluster: A Spectroscopic View of NGC 330

The Astrophysical Journal
We present an analysis of high-resolution optical spectra recorded for 30 stars of the split extended main-sequence turnoff of the young (∼40 Myr) Small Magellanic Cloud globular cluster NGC 330.
Paul I. Cristofari, Andrea K. Dupree, Antonino P. Milone, Matthew G. Walker, Mario Mateo, Aaron Dotter, John I. Bailey III   +6 more
doaj   +1 more source

Engineering peptides into antibodies—opportunities and strategies for therapeutic innovation

FEBS Letters, EarlyView.
Peptides and antibodies occupy complementary therapeutic niches. Peptides recognize difficult targets in a compact format, while antibodies add specificity, long half‐life, and effector functions. This review examines strategies that merge both modalities—peptide grafting into loops, terminal and Fc fusions, and bioconjugation—highlighting how ...
Jinling Wang, Ruslana Romaniuk, Hristo L. Svilenov   +2 more
wiley   +1 more source