全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:G. Garc a Segura
来源:[J].Revista Mexicana de Astronomía y Astrofísica : Universidad Nacional Autónoma de México. Instituto de Astronomía(IF 1.197), 2009, (36), pp.67DOAJ
摘要:We discuss recent advances in hydrodynamical computations of the circumstellar medium, which are useful to understand, for example, some features observed in long gamma ray bursts.
作者:G. Kowal , A. Lazarian , E. T. Vishniac ...
来源:[J].Revista Mexicana de Astronomía y Astrofísica : Universidad Nacional Autónoma de México. Instituto de Astronomía(IF 1.197), 2009, (36), pp.89DOAJ
摘要:We study the e ects of turbulence on magnetic reconnection using three-dimensional numerical simulations.This is the rst attempt to test the model of fast magnetic reconnection proposed by Lazarian & Vishniac (1999), which assumes the presence of weak, small-scale magnetic eld st...
作者:S. Cabrit , M. Bocchi , M. Camenzind ...
来源:[J].Revista Mexicana de Astronomía y Astrofísica : Universidad Nacional Autónoma de México. Instituto de Astronomía(IF 1.197), 2009, (36), pp.171DOAJ
摘要:This contribution reviews recent results on the dynamics of YSO jets obtained by the JETSET network using theoretical MHD models, numerical simulations, and laboratory experiments. Topics include pressure-driven stellar winds, magnetospheric ejections, disk winds, MRI and KH inst...
作者:T. P. Ray
来源:[J].Revista Mexicana de Astronomía y Astrofísica : Universidad Nacional Autónoma de México. Instituto de Astronomía(IF 1.197), 2009, (36), pp.179DOAJ
摘要:Out ows are a ubiquitous part of the star formation process and may even be necessary if accretion is to occur onto a protostar or young brown dwarf. While an out ow can take several forms, it is most strikingly seen as a highly collimated supersonic jet that can stretch for seve...
作者:M. Krause
来源:[J].Revista Mexicana de Astronomía y Astrofísica : Universidad Nacional Autónoma de México. Instituto de Astronomía(IF 1.197), 2009, (36), pp.25DOAJ
摘要:The main observational results from radio continuum and polarization observations about the magnetic field strength and large-scale pattern for face-on and edge-on spiral galaxies are summarized and compared within our sample of galaxies of different morphological types, inc...
作者:M. Opher
来源:[J].Revista Mexicana de Astronomía y Astrofísica : Universidad Nacional Autónoma de México. Instituto de Astronomía(IF 1.197), 2009, (36), pp.60DOAJ
摘要:Through the interaction of the solar system with the interstellar medium we can learn about shocks and magnetized winds. Voyager 1 crossed, in Dec 2004, the termination shock and is now in the heliosheath. On August 30, 2007 Voyager 2 crossed the termination shock, providing...
作者:R. H. Hildebrand , J. E. Vaillancourt
来源:[J].Revista Mexicana de Astronomía y Astrofísica : Universidad Nacional Autónoma de México. Instituto de Astronomía(IF 1.197), 2009, (36), pp.137DOAJ
摘要:Measurements of polarized emission from molecular clouds have provided maps of magnetic elds as projected on the sky. The polarization spectrum has given evidence for multiple cloud components in which dust grains at di erent temperatures have di erent polarizing effciencies. Wit...
作者:W. D. Watson
来源:[J].Revista Mexicana de Astronomía y Astrofísica : Universidad Nacional Autónoma de México. Instituto de Astronomía(IF 1.197), 2009, (36), pp.113DOAJ
摘要:Basic aspects of the relationship between the magnetic eld and polarized maser radiation are described with the emphasis on interpreting the observed spectra. Special attention is given to three issues { the limitations on the applicability of the classic solutions of Goldreich, ...
作者:A. Frank , A. Ciardi , K. Yirak ...
来源:[J].Revista Mexicana de Astronomía y Astrofísica : Universidad Nacional Autónoma de México. Instituto de Astronomía(IF 1.197), 2009, (36), pp.193DOAJ
摘要:Herbig-Haro (HH) jets are commonly thought of as homogeneous beams of plasma traveling at hypersonic velocities. Structure within jet beams is often attributed to periodic or "pulsed" variations of conditions at the jet source. In this contribution we offer an alternative to...
作者:R. M. Crutcher
来源:[J].Revista Mexicana de Astronomía y Astrofísica : Universidad Nacional Autónoma de México. Instituto de Astronomía(IF 1.197), 2009, (36), pp.107DOAJ
摘要:Observations of the Zeeman e ect in OH and CN provide valuable information about magnetic eld strengths and directions in molecular clouds in the density range 103 < n(cm-3) < 106 that these species sample. These data make it possible to test predictions of weak eld, turbulence d...

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