Zobrazeno 1 - 10
of 2 656
pro vyhledávání: '"P. Kama"'
The composition of a planet's atmosphere is intricately linked to the chemical makeup of the protoplanetary disk in which it formed. Determining the elemental abundances from key volatiles within disks is therefore essential for establishing connecti
Externí odkaz:
http://arxiv.org/abs/2410.01418
Publikováno v:
IEEE International Symposium on Embedded Multicore/Many-core Systems-on-Chip (MCSoC 2024)
Spiking Neural Networks (SNNs) are inspired by the sparse and event-driven nature of biological neural processing, and offer the potential for ultra-low-power artificial intelligence. However, realizing their efficiency benefits requires specialized
Externí odkaz:
http://arxiv.org/abs/2408.14437
We consider a cell-free massive MIMO system with multiple antennas on the users and access points. In previous works, the downlink spectral efficiency (SE) has been evaluated using the hardening bound that requires no downlink pilots. This approach w
Externí odkaz:
http://arxiv.org/abs/2404.18516
Publikováno v:
A&A 686, A120 (2024)
In protoplanetary disks, atomic carbon is expected to originate from the PDR at the disk surface where CO is dissociated by UV photons coming from the stellar, or external interstellar, radiation field. Even though atomic carbon has been detected in
Externí odkaz:
http://arxiv.org/abs/2403.05042
Autor:
Booth, Alice S., Leemker, Margot, van Dishoeck, Ewine F., Evans, Lucy, Ilee, John D., Kama, Mihkel, Keyte, Luke, Law, Charles J., van der Marel, Nienke, Nomura, Hideko, Notsu, Shota, Öberg, Karin, Temmink, Milou, Walsh, Catherine
Observations of disks with the Atacama Large Millimeter/submillimeter Array (ALMA) allow us to map the chemical makeup of nearby protoplanetary disks with unprecedented spatial resolution and sensitivity. The typical outer Class II disk observed with
Externí odkaz:
http://arxiv.org/abs/2402.04001
Autor:
Booth, Alice S., Temmink, Milou, van Dishoeck, Ewine F., Evans, Lucy, Ilee, John D., Kama, Mihkel, Keyte, Luke, Law, Charles J., Leemker, Margot, van der Marel, Nienke, Nomura, Hideko, Notsu, Shota, Öberg, Karin, Walsh, Catherine
The Atacama Large Millimeter/submillimeter Array (ALMA) can probe the molecular content of planet-forming disks with unprecedented sensitivity. These observations allow us to build up an inventory of the volatiles available for forming planets and co
Externí odkaz:
http://arxiv.org/abs/2402.04002
Autor:
Keyte, Luke, Kama, Mihkel, Chuang, Ko-Ju, Cleeves, L. Ilsedore, Drozdovskaya, Maria N., Furuya, Kenji, Rawlings, Jonathan, Shorttle, Oliver
Volatile elements play a crucial role in the formation of planetary systems. Their abundance and distribution in protoplanetary disks provide vital insights into the connection between formation processes and the atmospheric composition of individual
Externí odkaz:
http://arxiv.org/abs/2312.13997
Publikováno v:
IEEE Journal on Emerging and Selected Topics in Circuits and Systems (JETCAS) 2023
Spiking Neural Networks (SNNs) offer a promising alternative to Artificial Neural Networks (ANNs) for deep learning applications, particularly in resource-constrained systems. This is largely due to their inherent sparsity, influenced by factors such
Externí odkaz:
http://arxiv.org/abs/2310.16745
(Exo-)planets inherit their budget of chemical elements from a protoplanetary disk. The disk temperature determines the phase of each chemical species, which sets the composition of solids and gas available for planet formation. We investigate how ga
Externí odkaz:
http://arxiv.org/abs/2310.13690
Autor:
Keyte, Luke, Kama, Mihkel, Booth, Alice S., Bergin, Edwin A., Cleeves, L. Ilsedore, van Dishoeck, Ewine F., Drozdovskaya, Maria N., Furuya, Kenji, Rawlings, Jonathan, Shorttle, Oliver, Walsh, Catherine
The elemental carbon-to-oxygen ratio (C/O) in the atmosphere of a giant planet is a promising diagnostic of that planet's formation history in a protoplanetary disk. Alongside efforts in the exoplanet community to measure C/O in planetary atmospheres
Externí odkaz:
http://arxiv.org/abs/2303.08927