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Exposures in Indoor Air Affecting Health. [PDF]
AllergyABSTRACT Indoor air quality (IAQ) is influenced by a wide range of chemical, biological and physical agents that can negatively impact physical, immunological and mental health. Adverse health effects depend on the type and concentration of pollutants, duration of exposure, and individual susceptibility.
Hartiala M +38 more
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Frontiers in Physics, 2020 In this work, we present results that simultaneously constrain the dust size distribution, dust-to-gas ratio, fraction of dust re-deposition, and total mass production rates for comet 67P/Churyumov-Gerasimenko.
Raphael Marschall +7 more
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Dust Outburst Dynamics and Hazard Assessment for Close Spacecraft–Comet Encounters
The Planetary Science Journal, 2021 Using the gas drag by sublimating cometary surface ices for the acceleration of dust particles and deceleration by the gravity field of the nucleus combined with basic laws of mechanics, the sizes, velocities, and number densities of escaping particles ...
Uwe Fink +6 more
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Unusual polarimetric properties for interstellar comet 2I/Borisov
Nature Communications, 2021 Polarimetry provides information about physical characteristics of cometary dust. Here, the authors show that the polarization of interstellar comet 2I/Borisov exceeds the typical values for comets, and this together with its polarimetrically homogenous ...
S. Bagnulo +8 more
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CO and CO2 Productions Rates of Comets Observed by NEOWISE within Year 1 of the Reactivated Mission
The Planetary Science Journal, 2023 We report on the observed fluxes of the comets detected by NEOWISE during the first year of operations after the spacecraft’s reactivation. The sample included 57 comets.
Adeline Gicquel +4 more
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Optical Imaging Polarimetry of Comet 21P/Giacobini–Zinner during Its 2018 Apparition
The Planetary Science Journal, 2023 We conducted polarimetric observations of comet 21P/Giacobini–Zinner in the optical wavelength region using the polarimetric imager PICO equipped with the 50 cm telescope for Public Outreach at the Mitaka Campus of the National Astronomical Observatory ...
Yoshiharu Shinnaka +4 more
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Comet P/2021 HS (PANSTARRS) and the Challenge of Detecting Low-activity Comets
The Planetary Science Journal, 2023 Jupiter-family comet (JFC) P/2021 HS (PANSTARRS) only exhibits a coma within a few weeks of its perihelion passage at 0.8 au, which is atypical for a comet.
Quanzhi Ye +10 more
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Monte Carlo Models of Comet Dust Tails Observed from the Ground
Universe, 2022 Dust particles leaving the comet nucleus surface are entrained by the gas within the first few nuclear radius distances and are subjected to a complex hydrodynamical environment.
Fernando Moreno
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Dust and gas emission from cometary nuclei: the case of comet 67P/Churyumov–Gerasimenko
Advances in Physics: X, 2018 Comets display with decreasing solar distance an increased emission of gas and dust particles, leading to the formation of the coma and tail. Spacecraft missions provide insight into the temporal and spatial variations of the dust and gas sources located
Tobias Kramer +4 more
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Physical properties of cometary dust from Monte Carlo analysis of tail and coma images
Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2011 Forward and inverse Monte Carlo modeling of cometary dust tail and coma images has provided one of the best approaches to infer the basic physical dust parameters and their time dependence: mass loss rates, ejection velocities, and size distribution ...
F. Moreno
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