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Books > Science & Mathematics > Astronomy, space & time > Solar system
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Water Snowline in Protoplanetary Disks (Hardcover, 1st ed. 2020)
Loot Price: R2,873
Discovery Miles 28 730
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Water Snowline in Protoplanetary Disks (Hardcover, 1st ed. 2020)
Series: Springer Theses
Expected to ship within 10 - 15 working days
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This book presents pioneering work on a critical observational test
of the planet formation theory based on the theoretical study of
the water snowline, beyond which water takes the form of ice, in
the protoplanetary disks - the place where planets are formed.
Since the water snowline is thought to divide the regions of rocky
and gas-giant planet formation, the location of the snowline is
essential for the planet formation process. The book proposes a
novel method to locate the snowlines using high-dispersion
spectroscopic observations of water vapor lines, which is based on
in sophisticated chemical modeling and line radiative transfer
calculations. The author obtained the water vapor distribution in
the disks using the chemical reaction network, which includes
photoreactions and gas-grain interactions. The simulated transition
lines of water vapor in the disks demonstrate that relatively weak
transition lines with moderate excitation energies are the best
tracers of water snowline. Furthermore, the author observed
submillimeter lines of water vapor in a disk using ALMA (Atacama
Large Millimeter/submillimeter Array) to obtain the upper limit of
the line fluxes with the highest sensitivity to date. These
unprecedented findings are important in locating the snowlines in
the disks, and the method goes a long way toward achieving a
comprehensive understanding of the planet formation processes as
well as of the origin of water on rocky planets, including our
Earth, based on future observations using ALMA and SPICA (Space
Infrared Telescope for Cosmology and Astrophysics).
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