Results 81 to 90 of about 30,171 (324)
The Astrophysical JournalWe present a novel, deep-learning-based method—dubbed Galactic-Seismology Substructures and Streams Hunter, or GS ^3 Hunter for short—to search for substructures and streams in stellar kinematics data.
Guan-Yu Wang +6 more
doaj +1 more source
The masses and metallicities of stellar haloes reflect galactic merger histories
, 2017 There is increasing observational and theoretical evidence for a correlation between the metallicity and the mass of the stellar halo for galaxies with Milky Way-like stellar masses.
Bell, Eric, D'Souza, Richard
core +1 more source
The Outer Halo of the Milky Way as Probed by RR Lyr Variables from the Palomar Transient Facility [PDF]
, 2017 RR Lyr stars are ideal massless tracers that can be used to study the total mass and dark matter content of the outer halo of the Milky Way. This is because they are easy to find in the light curve databases of large stellar surveys and their distances ...
Bahnolzer, Sophianna +7 more
core +2 more sources
Advanced Functional Materials, EarlyView.Particular thermal metamaterials are widely used as daytime radiative coolers merely by embedding thermally emissive nanoparticles (NPs) in liquid resins to form scalable, yet highly efficient cooling films in a cost‐effective way. However, randomly dispersed NPs, prevalently used thus far, cause strong scattering, limiting NP content and cooling ...
YongDeok Cho +10 more
wiley +1 more source
Metallicity and α-abundance for 48 Million Stars in Low-extinction Regions in the Milky Way
The Astrophysical JournalWe estimate ([M/H], [ α /M]) for 48 million giants and dwarfs in low-dust extinction regions from the Gaia DR3 XP spectra by using tree-based machine learning models trained on APOGEE DR17 and a metal-poor star sample from Li et al.
Kohei Hattori
doaj +1 more source
EPJ Web of Conferences, 2012 While recent sky surveys have uncovered large numbers of ever fainter Milky Way satellites, their classification as star clusters, low-luminosity galaxies, or tidal overdensities remains often unclear. Likewise, their contributions to the build-up of the
Lépine S., Koch A., Çalışkan Ş.
doaj +1 more source
Build up of the Milky Way's stellar halo
, 2020 Our understanding of the formation and evolution of the Milky Way is undergoing a revolution after Gaia's measurements. We have discovered a dominant population of radially biased stars (`Gaia-sausage' or `Gaia-Enceladus') which is attributed to a significant event in the history of the Milky Way, a merger with a relatively massive dwarf galaxy .
openaire +2 more sources
Advanced Functional Materials, EarlyView.A self‐assembled monolayer of 3‐mercaptopropyltrimethoxysilane (MPTS) molecular receptor and titanium oxide‐modified carbon cloth (MPTS/TiO2/CC) was synthesized for the specific detection of sweat L‐cysteine, which is associated with the precision neutrition, cardiovascular system and neuro system.
Xiangjie Chen +11 more
wiley +1 more source
Precise Asteroseismic Ages for the Helmi Streams
The Astrophysical JournalThe Helmi streams are remnants of a dwarf galaxy that was accreted by the Milky Way and whose stars now form a distinct kinematic and chemical substructure in the Galactic halo. Precisely age-dating these typically faint stars of extragalactic origin has
Christopher J. Lindsay +8 more
doaj +1 more source
The Spectacular Tidal Tails of Globular Cluster M3 (NGC 5272)
The Astrophysical Journal, 2023 We provide a detailed analysis of the tidal tails of the globular cluster M3 (NGC 5272). We first discover clear extratidal structures with a slight S shape near the cluster. This inspires us to examine the existence of its long tidal tails. We highlight
Yong Yang +4 more
doaj +1 more source