Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Close-range remote sensing of Saturn’s rings during Cassini’s ring-grazing orbits and Grand Finale
AU - Tiscareno, M.S.
AU - Nicholson, P.D.
AU - Cuzzi, J.N.
AU - Spilker, L.J.
AU - Murray, C.D.
AU - Hedman, M.M.
AU - Colwell, J.E.
AU - Burns, J.A.
AU - Brooks, S.M.
AU - Clark, R.N.
AU - Cooper, N.J.
AU - Deau, E.
AU - Ferrari, C.
AU - Filacchione, G.
AU - Jerousek, R.G.
AU - Le Mouélic, S.
AU - Morishima, R.
AU - Pilorz, S.
AU - Rodriguez, S.
AU - Showalter, M.R.
AU - Badman, S.V.
AU - Baker, E.J.
AU - Buratti, B.J.
AU - Baines, K.H.
AU - Sotin, C.
N1 - Cited By :2 Export Date: 15 July 2019 CODEN: SCIEA Correspondence Address: Tiscareno, M.S.; Carl Sagan Center for the Study of Life in the Universe, SETI InstituteUnited States; email: matt@seti.org
PY - 2019
Y1 - 2019
N2 - Saturn’s rings are an accessible exemplar of an astrophysical disk, tracing the Saturn system’s dynamical processes and history. We present close-range remote-sensing observations of the main rings from the Cassini spacecraft. We find detailed sculpting of the rings by embedded masses, and banded texture belts throughout the rings. Saturn-orbiting streams of material impact the F ring. There are fine-scaled correlations among optical depth, spectral properties, and temperature in the B ring, but anticorrelations within strong density waves in the A ring. There is no spectral distinction between plateaux and the rest of the C ring, whereas the region outward of the Keeler gap is spectrally distinct from nearby regions. These results likely indicate that radial stratification of particle physical properties, rather than compositional differences, is responsible for producing these ring structures. © 2019 American Association for the Advancement of Science. All rights reserved.
AB - Saturn’s rings are an accessible exemplar of an astrophysical disk, tracing the Saturn system’s dynamical processes and history. We present close-range remote-sensing observations of the main rings from the Cassini spacecraft. We find detailed sculpting of the rings by embedded masses, and banded texture belts throughout the rings. Saturn-orbiting streams of material impact the F ring. There are fine-scaled correlations among optical depth, spectral properties, and temperature in the B ring, but anticorrelations within strong density waves in the A ring. There is no spectral distinction between plateaux and the rest of the C ring, whereas the region outward of the Keeler gap is spectrally distinct from nearby regions. These results likely indicate that radial stratification of particle physical properties, rather than compositional differences, is responsible for producing these ring structures. © 2019 American Association for the Advancement of Science. All rights reserved.
KW - article
KW - astronomy
KW - grazing
KW - optical depth
KW - orbit
KW - remote sensing
KW - rest
KW - stratification
U2 - 10.1126/science.aau1017
DO - 10.1126/science.aau1017
M3 - Journal article
VL - 364
JO - Science
JF - Science
SN - 0036-8075
IS - 6445
ER -