Results 131 to 140 of about 85,801 (378)
The Astrophysical Journal, 2023 We report our analysis results for the globular cluster (GC) NGC 6341 (M92), as a millisecond pulsar (MSP) J1717+4308A has recently been reported found in this GC.
Pengfei Zhang +4 more
doaj +1 more source
Unraveling LINE‐1 retrotransposition in head and neck squamous cell carcinoma
Molecular Oncology, EarlyView.The novel RetroTest method allows the detection of L1 activation in clinical samples with low DNA input, providing global L1 activity and the identification of the L1 source element. We applied RetroTest to a real‐world cohort of HNSCC patients where we reported an early L1 activation, with more than 60% of T1 patients showing L1 activity.
Jenifer Brea‐Iglesias +12 more
wiley +1 more source
An Enigmatic Population of Luminous Globular Clusters in a Galaxy Lacking Dark Matter [PDF]
, 2018 We recently found an ultra diffuse galaxy (UDG) with a half-light radius of Re = 2.2 kpc and little or no dark matter. The total mass of NGC1052–DF2 was measured from the radial velocities of bright compact objects that are associated with the galaxy ...
P. V. Dokkum +13 more
semanticscholar +1 more source
Dark Matter Halos in Galaxies and Globular Cluster Populations
, 2014 We combine a new, comprehensive database for globular cluster populations in all types of galaxies with a new calibration of galaxy halo masses based entirely on weak lensing.
Harris, Gretchen L. +2 more
core +1 more source
Globular Clusters and Field Halo Stars [PDF]
Symposium - International Astronomical Union, 1988 Recent work on the chemistry and kinematics of the field halo population stars is reviewed, including the metallicity distribution function, elemental abundance patterns, primordial abundances, and their relations with stellar kinematics. The important role played by these stars in determining the ages of the globular clusters is discussed.
openaire +2 more sources
Molecular Oncology, EarlyView.Analysis of treatment‐naïve high‐grade serous ovarian carcinoma (HGSOC) and control tissues for ERVs, LINE‐1 (L1), inflammation, and immune checkpoints identified five clusters with diverse patient recurrence‐free survivals. An inflammation score was calculated and correlated with retroelement expression, where one novel cluster (Triple‐I) with high ...
Laura Glossner +6 more
wiley +1 more source
oMEGACat. IV. Constraining the Ages of Omega Centauri Subgiant Branch Stars with HST and MUSE
The Astrophysical JournalWe present age estimates for over 8100 subgiant branch (SGB) stars in Omega Centauri ( ω Cen) to study its star formation history. Our large data set, which combines multi-wavelength Hubble Space Telescope photometry with MUSE metallicities, provides an ...
C. Clontz +15 more
doaj +1 more source
First Starbursts at high redshift: Formation of globular clusters
, 2003 Numerical simulations of a Milky Way-size galaxy demonstrate that globular clusters with the properties similar to observed can form naturally at z > 3 in the concordance Lambda-CDM cosmology.
A. V. Kravtsov +4 more
core +1 more source
Accretion of Gas by Stars in Globular Clusters [PDF]
Symposium - International Astronomical Union, 1980 One of the two classes of models that have been proposed for the production of X-rays in globular clusters involves accretion of gas by a more or less massive (10 M⊙–1000 M⊙) black hole at cluster centre (Cowie, Ostriker and Stark 1978 - COS). The accretion rates are not large (~1017 g s−1), and we may enquire how such rates compare with those for ...
openaire +2 more sources
Molecular Oncology, EarlyView.In thyroid cancer patients, high‐dose (≥7.4 GBq) radioactive iodine therapy (RAIT) was associated with a higher prevalence of clonal hematopoiesis (variant allele frequency >2%) in individuals aged ≥50 years (OR = 2.44). In silico analyses showed that truncating PPM1D mutations conferred a selective advantage under these conditions.
Jaeryuk Kim +11 more
wiley +1 more source