Zobrazeno 1 - 10
of 1 123
pro vyhledávání: '"Booth, Richard A."'
Autor:
Penzlin, Anna B. T., Booth, Richard A., Nelson, Richard P., Schäfer, Christoph M., Kley, Wilhelm
Many of the most intriguing features, including spirals and cavities, in the current disc observations are found in binary systems like GG Tau, HD 142527 or HD 100453. Such features are evidence of the dynamic interaction between binary stars and the
Externí odkaz:
http://arxiv.org/abs/2407.07243
Autor:
Kirk, James, Ahrer, Eva-Maria, Penzlin, Anna B. T., Owen, James E., Booth, Richard A., Alderson, Lili, Christie, Duncan A., Claringbold, Alastair B., Esparza-Borges, Emma, Fisher, Chloe E., López-Morales, Mercedes, Mayne, N. J., McCormack, Mason, Meech, Annabella, Panwar, Vatsal, Powell, Diana, Taylor, Jake, Sergeev, Denis E., Valentine, Daniel, Wakeford, Hannah R., Wheatley, Peter J., Zamyatina, Maria
A primary objective of exoplanet atmosphere characterisation is to learn about planet formation and evolution, however, this is challenged by degeneracies. To determine whether differences in atmospheric composition can be reliably traced to differen
Externí odkaz:
http://arxiv.org/abs/2407.03198
Autor:
Penzlin, Anna B. T., Booth, Richard A., Kirk, James, Owen, James E., Ahrer, Eva-Maria, Christie, Duncan A., Claringbold, Alastair B., Esparza-Borges, Emma, López-Morales, M., Mayne, N. J., McCormack, Mason, Meech, Annabella, Panwar, Vatsal, Powell, Diana, Sergeev, Denis E., Taylor, Jake, Wheatley, Peter J., Zamyatina, Maria
Hot Jupiters present a unique opportunity for measuring how planet formation history shapes present-day atmospheric composition. However, due to the myriad pathways influencing composition, a well-constructed sample of planets is needed to determine
Externí odkaz:
http://arxiv.org/abs/2407.03199
The gas and solid-state C/O ratios provide context to potentially link the atmospheric composition of planets to that of the natal disk. We provide a synthesis of extant estimates of the gaseous C/O and C/H ratios in planet-forming disks obtained pri
Externí odkaz:
http://arxiv.org/abs/2406.12037
Autor:
Scardoni, Chiara E., Booth, Richard A., Clarke, Cathie J., Rosotti, Giovanni P., Ribas, Alvaro
While high resolution ALMA observations reveal a wealth of substructure in protoplanetary discs, they remain incapable of resolving the types of small scale dust structures predicted, for example, by numerical simulations of the streaming instability
Externí odkaz:
http://arxiv.org/abs/2406.11627
Autor:
Young, Alison K., Celeste, Maggie, Booth, Richard A., Rice, Ken, Koval, Adam, Carter, Ethan, Stamatellos, Dimitris
The evolution of many astrophysical systems depends strongly on the balance between heating and cooling, in particular star formation in giant molecular clouds and the evolution of young protostellar systems. Protostellar discs are susceptible to the
Externí odkaz:
http://arxiv.org/abs/2405.05762
ALMA (Atacama Large Millimetre/submillimetre Array) observations of the thermal emission from protoplanetary disc dust have revealed a wealth of substructures that could evidence embedded planets, but planet-driven spirals, one of the more compelling
Externí odkaz:
http://arxiv.org/abs/2404.18925
We present a new 2D axisymmetric code, cuDisc, for studying protoplanetary discs, focusing on the self-consistent calculation of dust dynamics, grain size distribution and disc temperature. Self-consistently studying these physical processes is essen
Externí odkaz:
http://arxiv.org/abs/2402.18471
Autor:
Rowther, Sahl, Nealon, Rebecca, Meru, Farzana, Wurster, James, Aly, Hossam, Alexander, Richard, Rice, Ken, Booth, Richard A.
We carry out three dimensional smoothed particle hydrodynamics simulations to study the role of gravitational and drag forces on the concentration of large dust grains (St > 1) in the spiral arms of gravitationally unstable protoplanetary discs, and
Externí odkaz:
http://arxiv.org/abs/2401.09380
Autor:
Zagaria, Francesco, Clarke, Cathie J., Booth, Richard A., Facchini, Stefano, Rosotti, Giovanni P.
We introduce a new technique to determine the gas turbulence and surface density in bright disc rings, under the assumption that dust growth is limited by turbulent fragmentation at the ring centre. We benchmark this prescription in HD 163296, showin
Externí odkaz:
http://arxiv.org/abs/2311.08950