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(2018). dsmcFoam+: An OpenFOAM based direct simulation Monte Carlo solver. Computer
Physics Communications, 224, 22–43. ISSN 0010-4655.
Wierzchos, K., Womack, M., & Sarid, G. (2017). Carbon monoxide in the distantly active Centaur
(60558) 174P/Echeclus at 6 AU. The Astronomical Journal, 153, 230.
Williams, I. P., & Wu, Z. (1993). The Geminid meteor stream and asteroid 3200 Phaethon. Monthly
Notices of the Royal Astronomical Society, 262, 231.
Williams, K. E., McKay, C. P., & Heldmann, J. L. (2015). Modeling the effects of martian surface
frost on ice table depth. Icarus, 261, 58.
Wong, I., Mishra, A., & Brown, M. E. (2019). Photometry of active Centaurs: Colors of dormant
active Centaur Nuclei. The Astronomical Journal, 157, 225.
Wright, I. P., Barber, S. J., Morgan, G. H., Morse, A. D., Sheridan, S., Andrews, D. J., Maynard, J.,
Yau, D., Evans, S. T., Leese, M. R., Zarnecki, J. C., Kent, B. J., Waltham, N. R., Whalley, M. S.,
Heys, S., Drummond, D. L., Edeson, R. L., Sawyer, E. C., Turner, R. F., & Pillinger, C. T.
(2007). Ptolemy an instrument to measure stable isotopic ratios of key volatiles on a cometary
nucleus. Space Science Reviews, 128, 363–381.
Wright, I. P., Sheridan, S., Barber, S. J., Morgan, G. H., Andrews, D. J., & Morse, A. D. (2015).
CHO-bearing organic compounds at the surface of 67P/Churyumov-Gerasimenko revealed by
Ptolemy. Science, 349, 2.673.
Wu, J.-S., & Lian, Y. (2003). Parallel three-dimensional direct simulation Monte Carlo method and
its applications. Computers & Fluids, 32, 1133.
Wu, J.-S., & Tseng, K.-C. (2005). Parallel DSMC method using dynamic domain decomposition.
International Journal for Numerical Methods in Engineering, 63, 37.
Wu, J.-S., Tseng, K.-C., & Wu, F.-Y. (2004). Parallel three-dimensional DSMC method using mesh
refinement and variable time-step scheme. Computer Physics Communications, 162, 166.
Wurm, G., & Blum, J. (1998). Experiments on preplanetary dust aggregation. Icarus, 132, 125.
Wyckoff, S., Heyd, R. S., & Fox, R. (1999). Unidentified molecular bands in the plasma tail of
Comet Hyakutake (C/1996 B2). The Astrophysical Journal, 512, L73.
Xie, X., & Mumma, M. J. (1992). The effect of electron collisions on rotational populations of
cometary water. The Astrophysical Journal, 386, 720.
Yamada, T., Rezac, L., Larsson, R., Hartogh, P., Yoshida, N., & Kasai, Y. (2018). Solving
non-LTE problems in rotational transitions using the Gauss-Seidel method and its implementation in the Atmospheric Radiative Transfer Simulator. Astronomy and Astrophysics, 619,
A181.
Yao, Y., & Giapis, K. P. (2017). Dynamic molecular oxygen production in cometary comae. Nature
Communications, 8, 15298.
Yeomans, D. K., & Chodas, P. W. (1989). An asymmetric outgassing model for cometary
nongravitational accelerations. The Astronomical Journal, 98, 1083–1093.
Yoldi, Z., Pommerol, A., Poch, O., Jost, B., & Thomas, N. (2018). Laboratory reflectance
measurements of ice and dust mixtures. Application to permanently shaded regions on the
Moon and Mercury. Lunar and Planetary Science Conference, 49, 2207.
Zakharov, V., Bockelée-Morvan, D., Biver, N., Crovisier, J., & Lecacheux, A. (2007). Radiative
transfer simulation of water rotational excitation in comets. Comparison of the Monte Carlo and
escape probability methods. Astronomy and Astrophysics, 473, 303.
Zakharov, V. V., Ivanovski, S. L., Crifo, J.-F., Della Corte, V., Rotundi, A., & Fulle, M. (2018).
Asymptotics for spherical particle motion in a spherically expanding flow. Icarus, 312, 121.
Zubko, E., Videen, G., Hines, D. C., & Shkuratov, Y. (2016). The positive-polarization of cometary
comae. Planetary and Space Science, 123, 63.
References
495