Results 1 to 10 of about 19,681 (213)

Internal R-process Abundance Spread of M15 and a Single Stellar Population Model [PDF]

open access: hybridAstrophysical Journal Letters, 2021
The member stars in globular cluster M15 show a substantial spread in the abundances of r-process elements. We argue that a rare and prolific r-process event enriched the natal cloud of M15 in an inhomogeneous manner.
Yuta Tarumi   +2 more
openalex   +2 more sources

A discovery of Two Slow Pulsars with FAST: "Ronin" from the Globular Cluster M15 [PDF]

open access: greenScience China Physics, Mechanics & Astronomy, 2023
Globular clusters harbor numerous millisecond pulsars, but long-period pulsars ($P \gtrsim 100$ ms) are rarely found. In this study, we employed a fast folding algorithm to analyze observational data from multiple globular clusters obtained by the Five ...
D. K. Zhou   +28 more
openalex   +2 more sources

Antiviral Activity of the Rhamnolipids Mixture from the Antarctic Bacterium Pseudomonas gessardii M15 against Herpes Simplex Viruses and Coronaviruses [PDF]

open access: goldPharmaceutics, 2021
Emerging and re-emerging viruses represent a serious threat to human health at a global level. In particular, enveloped viruses are one of the main causes of viral outbreaks, as recently demonstrated by SARS-CoV-2.
Rosa Giugliano   +9 more
openalex   +2 more sources

Polymer/fuel interaction and properties of typical automotive fuel-system polymers exposed to methanol blended (M15) gasoline

open access: yesPolymer Testing, 2021
Methanol blended with gasoline (M15) is a potential alternative transportation fuel option. It can provide benefits like reduced emissions from tail-pipe of vehicles and savings of import duty on crude oil. Three elastomers including Fluroelastomer (FKM),
Moqtik Bawase   +2 more
doaj   +2 more sources

The Stars in M15 Were Born with the r-process* [PDF]

open access: bronzeAstrophysical Journal, 2020
High-resolution spectroscopy of stars on the red giant branch (RGB) of the globular cluster M15 has revealed a large (∼1 dex) dispersion in the abundances of r-process elements such as Ba and Eu.
Kirby, Evan N.   +3 more
openalex   +3 more sources

Probiotic potential of Lacticaseibacillus rhamnosus VHProbi M15 on sucralfate-induced constipation in mice

open access: yesScientific Reports
The main objective of this study was to investigate the potential probiotic properties of Lacticaseibacillus rhamnosus VHProbi®M15 (M15). This study examined the effects of M15 on sucralfate-induced constipation in a mouse model.
Shumin Cheng   +4 more
doaj   +2 more sources

A high-velocity star recently ejected by an intermediate-mass black hole in M15. [PDF]

open access: yesNatl Sci Rev
The existence of intermediate-mass black holes (IMBHs) is crucial for understanding various astrophysical phenomena, yet their existence remains elusive, except for the LIGO-Virgo detection.
Huang Y   +6 more
europepmc   +3 more sources

CONSTRAINTS ON THE DISTANCE MODULI, HELIUM AND METAL ABUNDANCES, AND AGES OF GLOBULAR CLUSTERS FROM THEIR RR LYRAE AND NON-VARIABLE HORIZONTAL-BRANCH STARS. I. M3, M15, AND M92 [PDF]

open access: bronze, 2016
Up-to-date isochrones, zero-age horizontal-branch (ZAHB) loci, and evolutionary tracks for core He-burning stars are applied to the color–magnitude diagrams of M3, M15, and M92, focusing in particular on their RR Lyrae populations.
Don A. VandenBerg   +2 more
openalex   +3 more sources

CHEMICAL ABUNDANCES AND DUST IN THE HALO PLANETARY NEBULA K648 IN M15: ITS ORIGIN AND EVOLUTION BASED ON AN ANALYSIS OF MULTIWAVELENGTH DATA [PDF]

open access: bronze, 2015
We report on an investigation of the extremely metal-poor and C-rich planetary nebula (PN) K648 in M15 using the UV to far-infrared data obtained using Subaru, the Hubble Space Telescope, the Far Ultraviolet Spectroscopic Explorer, Spitzer, and Herschel.
Otsuka, Masaaki   +2 more
openalex   +3 more sources

RADIAL DISTRIBUTIONS OF SUB-POPULATIONS IN THE GLOBULAR CLUSTER M15: A MORE CENTRALLY CONCENTRATED PRIMORDIAL POPULATION [PDF]

open access: bronze, 2015
We examine the radial distributions of stellar populations in the globular cluster (GC) M15, using Hubble Space Telescope/Wide Field Camera 3 (WFC3) photometry of red giants in the nitrogen-sensitive F343N–F555W color.
S. S. Larsen   +5 more
openalex   +3 more sources

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