Results 61 to 70 of about 16,650,235 (304)
The Star Cluster Population of M51: II. Age distribution and relations among the derived parameters [PDF]
, 2005 We use archival Hubble Space Telescope observations of broad-band images from the ultraviolet (F255W-filter) through the near infrared (NICMOS F160W-filter) to study the star cluster population of the interacting spiral galaxy M 51.
Bastian, NJ +4 more
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The star formation history of the young open cluster NGC 2244 [PDF]
, 2023 A star formation history (SFH) is the stellar record of the various processes that shaped a galaxy or an open cluster since its birth to its current physical state. Studying the NGC 2244 cluster, and in particular its massive star population, can improve
Nazé, Yaël +2 more
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The Astrophysical Journal LettersA meta-analysis of seismic ages determined for individual stars in the well-studied open and globular clusters NGC 6819, NGC 6791, M67, M4, M19, M80, and M9 reveals both high variance across measurements and a possible discrepancy with independent ...
Jamie Tayar, Meridith Joyce
doaj +1 more source
FEBS Letters, EarlyView.Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley +1 more source
On the Roles of Stellar Rotation and Binarity in NGC 2423's Main-sequence Turnoff Region
The Astrophysical JournalResearch has shown that many young and intermediate-age clusters (younger than ∼2 Gyr) have extended main sequences and extended main-sequence turnoffs (eMSTOs), which cannot be adequately described by a single isochrone. The reason for the extended main
Yutian Bu +4 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 +2 more
wiley +1 more source
The Astrophysical Journal Supplement Series, 2023 Using data from Gaia Data Release 3 and Kepler/K2, we present a catalog of 16 open clusters with ages ranging from 4–4000 Myr that provides detailed information on membership, binary systems, and rotation. We assess the memberships in 5D phase space, and
Liu Long +11 more
doaj +1 more source
Variable stars in young open star clusters
Bulletin de la Société Royale des Sciences de Liège, 2018 We have carried out time series photometry of the some young open clusters NGC 1893, Be 59, NGC 7380, Stock 8 and NGC 281 to search for pre-main-sequence variable stars. We have detected several pre-main-sequence variables associated to the young open clusters with periods ranging from ~0.1 to ~50 days.
Pandey, Anil Kumar, Lata, Sneh
openaire +2 more sources
Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis
FEBS Letters, EarlyView.Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee +7 more
wiley +1 more source
, 2008 Star clusters form a useful check on theories of star formation and stellar evolution. The author reviews some of the properties of star clusters and suggests some observations that might be extended to more distant ...
Davies, M
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