Results 51 to 60 of about 1,217 (186)
High-Resolution Optical Observations of Interstellar Absorption Lines [PDF]
Highlights of Astronomy, 2005 AbstractWe briefly note several current topics concerning the properties of interstellar clouds for which high-resolution optical spectra play a significant role: (1) the recognition and characterization of small-scale (sub-pc) structure in both atomic and molecular gas; (2) the discovery of variations in the 7Li/6Li isotopic ratio in the nearby ...
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Small Structures, Volume 7, Issue 6, June 2026.Light‐activated protein‐imprinted PFPA‐functionalized hydrogels crosslink captured proteins and report protein surface accessibility as missing‐peptide patterns readable by standard LC‐MS/MS. Mass spectrometry (MS)‐based structural proteomics can reveal higher‐order structural features in complex biological samples, but many covalent footprinting and ...
Eisuke Kanao +10 more
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Revisiting the Ultraviolet Spectroscopy of the η Tel Edge-on Debris Disk
The Astronomical JournalWe revisit the ultraviolet absorption spectroscopy of the edge-on debris disk surrounding the A0V star η Telescopii. Previous work found absorption components at four velocities (∼−23, −18, −10, −1 km s ^−1 ), with the most blueshifted component (−23 km
Allison Youngblood +6 more
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Earth and Planetary PhysicsResearch on the interstellar medium and its interaction with the solar system constitutes a significant topic in planetary physics. As the Sun traverses the local interstellar cloud, interstellar neutrals penetrate the heliosphere, forming the ...
JiaLing Lyu +3 more
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Interstellar absorption lines in the spectrum of zeta Ophiuchi
The Astrophysical Journal, 1975 The far-UV spectrum of Zeta Pup is surveyed as obtained from scans by Copernicus satellite detectors. Equivalent widths are tabulated for 147 lines from 35 different ions or isotopes of 19 elements in the direction of Zeta Pup. In addition, 52 unidentified absorption lines are listed whose narrow widths indicate an interstellar origin.
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On the Detection of Low‐Frequency Planetary Radio Emission With an Orbiting Interferometer
Radio Science, Volume 61, Issue 6, June 2026.Abstract The magnetized planets of the outer Solar System produce kilometric radio emissions at very low frequencies (<1 ${< } 1\,$MHz). They reveal the planetary magnetic dynamics and their interaction with the solar wind. Those radio emissions can also serve as a proxy for interplanetary space weather monitoring.
E. Rouillé +4 more
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Distance to the Galactic Center 7′ Halo from H I Absorption
The Astrophysical JournalUsing archival data, we have made an H I absorption study of the 7 ${}^{{\prime} }$ halo surrounding the Sgr A complex, observed toward the Galactic center (GC) region. We find strong H I absorption near velocities of −53 km s ^−1 , which is due to the 3
Debangan Maji, Subhashis Roy
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How to Imagine Educational AI: The Filling of a Pail or the Lighting of a Fire?
Educational Theory, Volume 76, Issue 3, Page 316-338, June 2026.Abstract Recent advances in artificial intelligence (e.g., machine learning, generative AI) have led to increased interest in its application in educational settings. AI companies hope to revolutionize teaching and learning by tailoring material to the individual needs of students, automating parts of teachers' jobs, or analyzing educational data to ...
Michał Wieczorek, Alberto Romele
wiley +1 more source
Modeling the Detectability of Energetic Heliospheric Ions at Pluto During the New Horizons Flyby
Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.Abstract We investigate the detectability of heliospheric helium ions at energies up to 100 keV by the New Horizons (NH) spacecraft during its flyby through Pluto's induced magnetosphere. The Pluto Energetic Particle Spectrometer Science Investigation energetic ion detector observed a reduction in their flux by an order of magnitude as the spacecraft ...
Randall T. Ruch +3 more
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The Distance to the S147 Supernova Remnant
The Astrophysical JournalIn the absence of a parallax distance to a pulsar or a surviving binary in a supernova remnant (SNR), distances to Galactic SNRs are generally very uncertain.
C. S. Kochanek +2 more
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