Results 81 to 90 of about 32,395 (222)
Comet P/Tempel: Some highlights and conclusions from the 1988 apparition [PDF]
From the brightness development and a sequence of imaging observations of the coma activity onset of comet P/Tempel 2 in 1988, it is concluded that there might have happened eruptive events of strong dust and gas outbursts during May and June 1988.
Baer, A. +2 more
core +1 more source
JWST Detection of a Carbon-dioxide-dominated Gas Coma Surrounding Interstellar Object 3I/ATLAS
The Astrophysical Journal Letters3I/ATLAS is the third confirmed interstellar object to visit our solar system and only the second to display a clear coma. Infrared spectroscopy with the James Webb Space Telescope (JWST) provides the opportunity to measure its coma composition and ...
Martin A. Cordiner +12 more
doaj +1 more source
Ventilator‐Induced Lung Injury: Mechanotransduction and Potential Therapeutic Targets
MedComm, Volume 7, Issue 2, February 2026.Mechanical ventilation (MV) is expected to undergo significant transformative advancements by 2050, with the emergence of personalized ventilation systems that promise to revolutionize respiratory care. However, the risk of ventilator‐induced lung injury (VILI) remains a significant concern at this stage and VILI still exists at that time.
He Ren +4 more
wiley +1 more source
Boulder Migration in the Khonsu Region of Comet 67P/Churyumov–Gerasimenko
The Astrophysical JournalThe European Space Agency's Rosetta mission is the only space mission that has performed long-term monitoring of a comet at close distances. For over two years, Rosetta rendezvoused with comet 67P/Churyumov–Gerasimenko, which revealed diverse ...
Xiang Tang +2 more
doaj +1 more source
Diurnal Ejection of Boulder Clusters on Comet 67P Lasting beyond 3 au
The Astrophysical Journal LettersEjection of large boulder-like debris is a vigorous form of cometary activity that is unlikely induced by water ice out-gassing alone but rather associated with the sublimation of super-volatile ices.
Xian Shi +8 more
doaj +1 more source
A JWST Study of the Remarkable Oort Cloud Comet C/2017 K2 (PanSTARRS)
The Planetary Science JournalComets, during their journeys into the inner solar system, deliver volatile gases, organics, and particulates into their comae that provide crucial information for assessing the physicochemical conditions in the outer disk from which they formed. Here we
Charles E. Woodward +6 more
doaj +1 more source
General Relativistic Study of Motion of Comets Particles Elliptical Gravitational Field [PDF]
Physics AccessComets are small bodies consisting of aggregates of ice mixed with rock and dust. They are usually influenced by galactic forces and stellar encounters, and may have contributed to the formation of ice giants and transport gases across the solar system ...
Timothy Bulus +3 more
doaj +1 more source
An analysis of CCD images of the coma of Comet Halley [PDF]
The analysis of selected CCD images of the coma of comet P/Halley is presented. The images were taken using specially designed filters that isolate regions of a comet's spectrum such that only sunlight which has been scattered by the dust in the coma is ...
Combi, Michael
core +1 more source
What drives the dust activity of comet 67P/Churyumov-Gerasimenko?
, 2015 We use the gravitational instability formation scenario of cometesimals to derive the aggregate size that can be released by the gas pressure from the nucleus of comet 67P/Churyumov-Gerasimenko for different heliocentric distances and different volatile ...
Blum, J. +3 more
core +1 more source
Inner coma dust properties from polarization models
, 2013 Polarimetric observations of comets may be used to infer dust properties within comae through simulations. Recent progresses, in search for analogues for porous irregular cometary particles and in numerical simulations with such particles, are expected to provide a better understanding of the near-nucleus environment of Rosetta cometary target.
Levasseur-Regourd, Anny Chantal +6 more
openaire +1 more source