Results 11 to 20 of about 144,914 (237)
Hidden comet tails of marine snow impede ocean-based carbon sequestration [PDF]
Science, 2023 Gravity-driven sinking of “marine snow” sequesters carbon in the ocean, constituting a key biological pump that regulates Earth’s climate. A mechanistic understanding of this phenomenon is obscured by the biological richness of these aggregates and a ...
Rahul Chajwa +4 more
semanticscholar +1 more source
Quantitative analysis of actin turnover in Listeria comet tails: evidence for catastrophic filament turnover. [PDF]
Biophys J, 2010 Kueh HY, Brieher WM, Mitchison TJ.
europepmc +2 more sources
Icarus (New York, N.Y. 1962), 2022 Striated features, or striae , form in cometary dust tails due to an as-yet not fully constrained process or processes. Using STEREO-B SECCHI HI-1 instrument data, we display the evolution of striae in the tail of C/2011 L4 Pan-STARRS over a period of 8 ...
Oliver Price +3 more
semanticscholar +1 more source
The Wagging Plasma Tail of Comet C/2020 S3 (Erasmus)
The Astronomical Journal, 2023 Long-period comet C/2020 S3 (Erasmus) reached perihelion at 0.398 au on UT 2020 December 12.67, making it a bright, near-Sun object. Images taken between 2020 mid-November and December using the HI-1 camera and COR2 coronagraph on board STEREO-A, as well
Jing Li, Yoonyoung Kim, David Jewitt
doaj +1 more source
Recurring Activity Discovered on Quasi-Hilda 2009 DQ118
The Astrophysical Journal Letters, 2023 We have discovered two epochs of activity on quasi-Hilda 2009 DQ _118 . Small bodies that display comet-like activity, such as active asteroids and active quasi-Hildas, are important for understanding the distribution of water and other volatiles ...
William J. Oldroyd +12 more
doaj +1 more source
Sodium Brightening of (3200) Phaethon near Perihelion
The Planetary Science Journal, 2023 Sunskirting asteroid (3200) Phaethon has been repeatedly observed in Solar Terrestrial Relations Observatory (STEREO) Heliospheric Imager 1 (HI1) imagery to anomalously brighten and produce an antisunward tail for a few days near each perihelion passage,
Qicheng Zhang +4 more
doaj +1 more source
WFUMB position paper on reverberation artefacts in lung ultrasound: B-lines or comet-tails?
Medical ultrasonography, 2020 The analysis of vertical reverberation artefacts is an essential component of the differential diagnosis in pulmonary ultra-sound. Traditionally, they are often, but not exclusively, called B-line artefacts (BLA) and/or comet tail artefacts (CTA), but ...
G. Mathis +8 more
semanticscholar +1 more source
Auroral responses to the visit of comet 73P/Schwassmann–Wachmann 3 in 2006
Geoscience Letters, 2022 The stunning tails of comets are interesting astronomical phenomena to human beings and have been noticed for thousands of years. The bright tails also emit substantial materials into interplanetary space, including dusts and charged particles.
Yong Zhao +6 more
doaj +1 more source
Active Asteroid 311P/PanSTARRS: Rotational Instability as the Origin of its Multitails?
The Astronomical Journal, 2023 The active asteroid 311P/PanSTARRS is one of the two targets of the planned Chinese asteroid exploration mission Tianwen-2. During 2013, 311P experienced several mass-loss events and exhibited multiple comet-like tails. Here we analyze the morphology and
Bin Liu +5 more
doaj +1 more source
Food Materials Research, 2023 The objective of the present study was to estimate applied doses of irradiated anchovy (1.83−4.22 kGy) and bluefish (1.98−5.40 kGy) for shelf-life extension by using image analysis in combination with comet assay for trading irradiated fish, especially ...
Nurcan Cetinkaya +5 more
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