Zobrazeno 1 - 10
of 152
pro vyhledávání: '"Richard I Klein"'
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 514:3024-3040
We present the stability analysis of two regions, OMC-3 and OMC-4, in the massive and long molecular cloud complex of Orion A. We obtained $214~\mu$m HAWC+/SOFIA polarization data, and we make use of archival data for the column density and C$^{18}$O
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97e4cab44b048f8ad7dd9b38dd32cf7d
https://doi.org/10.1093/mnras/stac1527
https://doi.org/10.1093/mnras/stac1527
Beginning with cosmological initial conditions at z=100, we simulate the effects of magnetic fields on the formation of Population III stars and compare our results with the predictions of Paper I. We use Gadget-2 to follow the evolution of the syste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c656e422b1fa8bd474d79ce56776ea4
Autor:
Che-Yu Chen, Zhi-Yun Li, Renato R Mazzei, Jinsoo Park, Laura M Fissel, Michael C-Y Chen, Richard I Klein, Pak Shing Li
Despite the rich observational results on interstellar magnetic fields in star-forming regions, it is still unclear how dynamically significant the magnetic fields are at varying physical scales, because direct measurement of the field strength is ob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b4251d3d3bb2254d39d01989d92f6ed
Autor:
Richard I. Klein, Pak Shing Li
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 485:4509-4528
We perform ideal MHD high resolution AMR simulations with driven turbulence and self-gravity and find that long filamentary molecular clouds are formed at the converging locations of large-scale turbulence flows and the filaments are bounded by gravi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85588150b48a29a746dd225cf638630e
https://doi.org/10.1093/mnras/stz653
https://doi.org/10.1093/mnras/stz653
Autor:
Hamza Ajeddig, Philippe André, Pak Shing Li, Christopher F. McKee, Jeonghee Rho, Enrique Lopez-Rodriguez, Richard I. Klein
Optical and infrared polarization mapping and recent Planck observations of the filamentary cloud L1495 in Taurus show that the large-scale magnetic field is approximately perpendicular to the long axis of the cloud. We use the HAWC+ polarimeter on S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2c44d24570b17000cedf55d48a55c70
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 473:4220-4241
Star formation in a filamentary infrared dark cloud (IRDC) is simulated over a dynamic range of 4.2 pc to 28 au for a period of $3.5\times 10^5$ yr, including magnetic fields and both radiative and outflow feedback from the protostars. At the end of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46c17d765b17b2349c8499cba8d8d841
https://doi.org/10.1093/mnras/stx2611
https://doi.org/10.1093/mnras/stx2611
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 468:717-727
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1f079aba198be859aaf00ca38069c77
https://doi.org/10.1093/mnras/stx439
https://doi.org/10.1093/mnras/stx439
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 463:2553-2573
The pressure exerted by massive stars' radiation fields is an important mechanism regulating their formation. Detailed simulation of massive star formation therefore requires an accurate treatment of radiation. However, all published simulations have
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8384a3d6bb8e11ec1b7f1ab3e2c9fc61
https://doi.org/10.1093/mnras/stw2153
https://doi.org/10.1093/mnras/stw2153
Publikováno v:
Proceedings of the International Astronomical Union. 11:103-106
Numerical simulations of star formation faces challenges including the huge spatial dynamic range and the presence of multiply coupled highly non-linear physics, such as magnetic field, supersonic turbulence, gravitation, radiation and protostellar o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f69470e53938c029e70610ba5a12eec1
https://doi.org/10.1017/s1743921316007341
https://doi.org/10.1017/s1743921316007341
Star forming molecular clouds are observed to be both highly magnetized and turbulent. Consequently the formation of protostellar disks is largely dependent on the complex interaction between gravity, magnetic fields, and turbulence. Studies of non-t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3882de09aae7a20b81fa55fe3ec89b83
http://arxiv.org/abs/1709.05350
http://arxiv.org/abs/1709.05350