Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Tritsis, A."'
Autor:
Tritsis, Aris, Kylafis, Nikolaos D.
Among all the available observational techniques for studying magnetic fields in the dense cold phase of the interstellar medium, linear polarization of spectral lines, referred to in the literature as the Goldreich-Kylafis effect (Goldreich & Kylafi
Externí odkaz:
http://arxiv.org/abs/2310.15230
Given the low ionization fraction of molecular clouds, ambipolar diffusion is thought to be an integral process in star formation. However, chemical and radiative-transfer effects, observational challenges, and the fact that the ion-neutral drift vel
Externí odkaz:
http://arxiv.org/abs/2303.09583
Autor:
Skalidis, R., Gkimisi, K., Tassis, K., Panopoulou, G. V., Pelgrims, V., Tritsis, A., Goldsmith, P. F.
Publikováno v:
A&A 673, A76 (2023)
The formation of molecular gas in interstellar clouds is a slow process, but is enhanced by gas compression. Magnetohydrodynamic (MHD) waves create compressed quasiperiodic linear structures, referred to as striations. Striations are observed at colu
Externí odkaz:
http://arxiv.org/abs/2303.04172
Autor:
Bino, Gianfranco, Basu, Shantanu, Machida, Masahiro N, Tritsis, Aris, Sharkawi, Mahmoud, Kadam, Kundan, Das, Indrani
Publikováno v:
The Astrophysical Journal (2022)
The canonical theory of star formation in a magnetized environment predicts the formation of hourglass-shaped magnetic fields during the prestellar collapse phase. In protostellar cores, recent observations reveal complex and strongly distorted magne
Externí odkaz:
http://arxiv.org/abs/2207.01743
The true 3-dimensional (3D) morphology of the Musca molecular cloud is a topic that has received significant attention lately. Given that Musca does not exhibit intense star-formation activity, unveiling its shape has the potential of also revealing
Externí odkaz:
http://arxiv.org/abs/2206.04074
Non-ideal magnetohydrodynamic (MHD) effects are thought to be gravity's closest ally in overcoming the support of magnetic fields and in forming stars. Here, we modify the publicly available version of the adaptive mesh refinement code FLASH (Fryxell
Externí odkaz:
http://arxiv.org/abs/2112.11462
Autor:
André, Ph., Hughes, A., Guillet, V., Boulanger, F., Bracco, A., Ntormousi, E., Arzoumanian, D., Maury, A. J., Bernard, J. -Ph., Bontemps, S., Ristorcelli, I., Girart, J. M., Motte, F., Tassis, K., Pantin, E., Montmerle, T., Johnstone, D., Gabici, S., Efstathiou, A., Basu, Shantanu, Béthermin, M., Beuther, H., Braine, J., Di Francesco, J., Falgarone, E., Ferrière, K., Fletcher, A., Galametz, M., Giard, M., Hennebelle, P., Jones, A., Kepley, A. A., Kwon, J., Lagache, G., Lesaffre, P., Levrier, F., Li, D., Li, Z. -Y., Mao, S. A., Nakagawa, T., Onaka, T., Paladino, R., Peretto, N., Poglitsch, A., Revéret, V., Rodriguez, L., Sauvage, M., Soler, J. D., Spinoglio, L., Tabatabaei, F., Tritsis, A., van der Tak, F., Ward-Thompson, D., Wiesemeyer, H., Ysard, N., Zhang, H.
Publikováno v:
PASA, 36, e029 (2019)
SPICA, the cryogenic infrared space telescope recently pre-selected for a `Phase A' concept study as one of the three remaining candidates for ESA's fifth medium class (M5) mission, is foreseen to include a far-infrared polarimetric imager (SPICA-POL
Externí odkaz:
http://arxiv.org/abs/1905.03520
Recent studies of the diffuse parts of molecular clouds have revealed the presence of parallel, ordered low-density filaments termed striations. Flows along magnetic field lines, Kelvin-Helmholtz instabilities and hydromagnetic waves are amongst the
Externí odkaz:
http://arxiv.org/abs/1810.01559
Publikováno v:
The Astrophysical Journal, Volume 873, Issue 1, 1 March 2019, Pages 38
The atomic interstellar medium (ISM) is observed to be full of linear structures that are referred to as "fibers". Fibers exhibit similar properties to linear structures found in molecular clouds known as striations. Suggestive of a similar formation
Externí odkaz:
http://arxiv.org/abs/1810.00231
We describe PyRaTE, a new, non-local thermodynamic equilibrium (non-LTE) line radiative transfer code developed specifically for post-processing astrochemical simulations. Population densities are estimated using the escape probability method. When c
Externí odkaz:
http://arxiv.org/abs/1805.09340