Zobrazeno 1 - 10
of 6 534
pro vyhledávání: '"Walsh, P. J."'
Autor:
Ćuk, Matija, Agrusa, Harrison, Cueva, Rachel H., Ferrari, Fabio, Hirabayashi, Masatoshi, Jacobson, Seth A., McMahon, Jay, Michel, Patrick, Sánchez, Paul, Scheeres, Daniel J., Schwartz, Stephen, Walsh, Kevin J., Zhang, Yun
The Near-Earth binary asteroid Didymos was the target of a planetary defense demonstration mission DART in September 2022. The smaller binary component, Dimorphos, was impacted by the spacecraft in order to measure momentum transfer in kinetic impact
Externí odkaz:
http://arxiv.org/abs/2406.20064
Autor:
Ballouz, R. -L., Agrusa, H., Barnouin, O. S., Walsh, K. J., Zhang, Y., Binzel, R. P., Bray, V. J., DellaGiustina, D. N., Jawin, E. R., DeMartini, J. V., Marusiak, A., Michel, P., Murdoch, N., Richardson, D. C., Rivera-Valentin, E., Rivkin, A. S., Tang, Y.
Spectral characterization of near-Earth asteroids (NEAs) has revealed a continuum of space-weathered states for the surfaces of S-complex NEAs, with Q-class NEAs, an S-complex subclass, most closely matching the un-weathered surfaces of ordinary chon
Externí odkaz:
http://arxiv.org/abs/2406.04864
In our recent work, we combined dynamical simulations, meteoritic data and thermal models as well as asteroid observations to argue that the current parent body of the EL meteorites was implanted into the asteroid belt not earlier than 60 Myr after t
Externí odkaz:
http://arxiv.org/abs/2404.19390
Autor:
Deienno, Rogerio, Nesvorny, David, Clement, Matthew S., Bottke, William F., Izidoro, Andre, Walsh, Kevin J.
The main asteroid belt (MAB) is known to be primarily composed of objects from two distinct taxonomic classes, generically defined here as S- and C-complex. The former probably originated from the inner solar system (interior to Jupiter's orbit), whi
Externí odkaz:
http://arxiv.org/abs/2404.03791
Autor:
Rodemann, Julian, Croppi, Federico, Arens, Philipp, Sale, Yusuf, Herbinger, Julia, Bischl, Bernd, Hüllermeier, Eyke, Augustin, Thomas, Walsh, Conor J., Casalicchio, Giuseppe
Bayesian optimization (BO) with Gaussian processes (GP) has become an indispensable algorithm for black box optimization problems. Not without a dash of irony, BO is often considered a black box itself, lacking ways to provide reasons as to why certa
Externí odkaz:
http://arxiv.org/abs/2403.04629
Autor:
Jayagopal, Aishwarya, Xue, Hansheng, He, Ziyang, Walsh, Robert J., Hariprasannan, Krishna Kumar, Tan, David Shao Peng, Tan, Tuan Zea, Pitt, Jason J., Jeyasekharan, Anand D., Rajan, Vaibhav
Cancer remains a global challenge due to its growing clinical and economic burden. Its uniquely personal manifestation, which makes treatment difficult, has fuelled the quest for personalized treatment strategies. Thus, genomic profiling is increasin
Externí odkaz:
http://arxiv.org/abs/2402.10551
Autor:
Gullion, William T., Walsh, Stephen J.
Coordinate exchange (CEXCH) is a popular algorithm for generating exact optimal experimental designs. The authors of CEXCH advocated for a highly greedy implementation - one that exchanges and optimizes single element coordinates of the design matrix
Externí odkaz:
http://arxiv.org/abs/2312.12645
Autor:
Granvik, Mikael, Walsh, Kevin J.
Publikováno v:
ApJL 960, 2, L9, 2024
Numerical modeling has long suggested that gravitationally-bound (or so-called rubble-pile) near-Earth asteroids (NEAs) can be destroyed by tidal forces during close and slow encounters with terrestrial planets. However, tidal disruptions of NEAs hav
Externí odkaz:
http://arxiv.org/abs/2312.08247
We present an approach for the inclusion of non-spherical constituents in high-resolution N-body discrete element method (DEM) simulations. We use aggregates composed of bonded spheres to model non-spherical components. Though the method may be appli
Externí odkaz:
http://arxiv.org/abs/2311.11322
Publikováno v:
A&A 680, A10 (2023)
Near-Earth asteroids Ryugu and Bennu, were visited, characterised, and sampled by the Hayabusa2 and OSIRIS-REx missions: remote sensing data and sample return analysis showed that both asteroids have primitive, hydrated and organic-rich compositions.
Externí odkaz:
http://arxiv.org/abs/2308.13828