Results 141 to 150 of about 74,003 (312)
Real-time Collision-free Motion Planning for Next-generation Fiber Positioners in LAMOST
The Astronomical JournalMultiobject fiber-fed spectrographs have thousands of fiber positioners packed on a focal plane with shared working space to move the fiber-ends in parallel, which maximizes observation time.
Guifeng Chen +4 more
doaj +1 more source
Astronomical Spectroscopy with Skipper CCDs: First Results from a Skipper CCD Focal Plane Prototype at SIFS [PDF]
Edgar Marrufo Villalpando +24 more
openalex +1 more source
Rotational spectroscopy and astronomical search for the 2-hydroxyacetonitrile isotopologues HO13CH2CN, HOCH213CN, and DOCH2CN [PDF]
, 2023 L. Margulès +8 more
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d‐Wave Fermi Surface Instability in the Nematic Phase of Two Monolayer FeSe/SrTiO3
Advanced Science, EarlyView.Angle‐resolved photoemission spectroscopy reveals a d‐wave nematic order in two‐monolayer FeSe/SrTiO3, showing degenerate dxz/dyz bands at Γ but a pronounced splitting at M. This momentum‐dependent anisotropy identifies the nematicity as a d‐wave Fermi surface (Pomeranchuk) instability, highlighting 2D FeSe as a model platform to explore the interplay ...
C. Y. Tang +14 more
wiley +1 more source
Astronomical spectroscopy: Interstellar space contains the largest encountered atoms [PDF]
, 1985 W. D. Watson
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Evaluating the Resistance of Bifacial Perovskite Photodetectors to Xenon Ion Irradiation
Advanced Science, EarlyView.Bifacial perovskite photodetectors maintain high efficiency and stability after 231 MeV xenon ion irradiation. Key photodetector parameters remain nearly unchanged at low fluence (1010 nucleons cm−2) and show only moderate degradation at high fluence (1011 nucleons cm−2), highlighting their strong radiation tolerance and suitability for optoelectronic ...
Yerassyl Yerlanuly +5 more
wiley +1 more source
Calculating Redshift via Astronomical Spectroscopy
, 2018 The Doppler effect is a well-known physical phenomenon which results in a change of a wave’s frequency or wavelength due to the motion of its source. Celestial objects in space (stars, galaxies, etc.) also experience a Doppler effect on their emitted electromagnetic radiation called redshift. In this study, redshifts were observed in the spectrographic
openaire +2 more sources
Advanced Science, EarlyView.This study reveals that dietary stachyose enriches Butyricimonas virosa, effectively attenuating metabolic dysfunction‐associated steatotic liver disease (MASLD). Mechanistically, B. virosa enhances gut thiamine monophosphate synthesis, which elevates hepatic thiamine pyrophosphate levels.
Ningning He +17 more
wiley +1 more source
Substituent‐Based Modulation of Self‐Assembly and Immunogenicity of Amphipathic Peptides
Advanced Science, EarlyView.This study systematically investigates how positional and subtle changes, such as substituents on the phenyl ring attached to short amphipathic peptides, influence their self‐assembly, fibril morphology, and immunogenic responses. ABSTRACT Self‐assembled peptide‐based biomaterials provide versatile platforms for biomedical uses, featuring customizable ...
Anirban Das +13 more
wiley +1 more source
The Astrophysical JournalWe present a sample of 53 galaxy spectra at z _SPEC ∼ 5–12 from the JWST CEERS and RUBIES surveys, combining NIRSpec PRISM spectroscopy with NIRCam photometry. We aim to use these data to establish best practices for measuring the UV spectral slope ( β )
Alexa M. Morales +23 more
doaj +1 more source