Zobrazeno 1 - 10
of 201
pro vyhledávání: '"Vázquez-Semadeni, E."'
Autor:
Zhou, J. W., Wyrowski, F., Neupane, S., Urquhart, J. S., Evans II, N. J., Vázquez-Semadeni, E., Menten, K. M., Gong, Y., Liu, T.
Publikováno v:
A&A 676, A69 (2023)
Hub-filament systems are suggested to be the birth cradles of high-mass stars and clusters. We apply the FILFINDER algorithm to the integrated intensity maps of the 13CO (3-2) line to identify filaments in the G333 complex, and extract the velocity a
Externí odkaz:
http://arxiv.org/abs/2305.12573
Autor:
Zhang, S., Wang, K., Liu, T., Zavagno, A., Juvela, M., Liu, H., Tej, A., Stutz, A. M., Li, S., Bronfman, L., Zhang, Q., Goldsmith, P. F., Lee, C. W., Vázquez-Semadeni, E., Tatematsu, K., Jiao, W., Xu, F., Wang, C., Zhou, J. -W.
Whether ionization feedback triggers the formation of massive stars is highly debated. Using ALMA 3 mm observations with a spatial resolution of $\sim 0.05$ pc and a mass sensitivity of 1.1 $\rm M_\odot$ beam$^{-1}$ at 20 K, we investigate the star f
Externí odkaz:
http://arxiv.org/abs/2301.01937
Autor:
Pingel, N. M., Dempsey, J., McClure-Griffiths, N. M., Dickey, J. M., Jameson, K. E., Arce, H., Anglada, G., Bland-Hawthorn, J., Breen, S. L., Buckland-Willis, F., Clark, S. E., Dawson, J. R., Dénes, H., Di Teodoro, E. M., For, B. -Q., Foster, Tyler J., Gómez, J. F., Imai, H., Joncas, G., Kim, C. -G., Lee, M. -Y., Lynn, C., Leahy, D., Ma, Y. K., Marchal, A., McConnell, D., Miville-Deschênes, M. -A., Moss, V. A., Murray, C. E., Nidever, D., Peek, J., Stanimirović, S., Staveley-Smith, L., Tepper-Garcia, T., Tremblay, C. D., Uscanga, L., van Loon, J. Th., Vázquez-Semadeni, E., Allison, J. R., Anderson, C. S., Ball, Lewis, Bell, M., Bock, D. C. -J., Bunton, J., Cooray, F. R., Cornwell, T., Koribalski, B. S., Gupta, N., Hayman, D. B., Harvey-Smith, L., Lee-Waddell, K., Ng, A., Phillips, C. J., Voronkov, M., Westmeier, T., Whiting, M. T.
We present the most sensitive and detailed view of the neutral hydrogen (HI) emission associated with the Small Magellanic Cloud (SMC), through the combination of data from the Australian Square Kilometre Array Pathfinder (ASKAP) and Parkes (Murriyan
Externí odkaz:
http://arxiv.org/abs/2111.05339
We investigate the origin of the observed scaling $j\sim R^{3/2}$ between the specific angular momentum $j$ and the radius $R$ of molecular clouds (MCs) and their their substructures, and of the observed near independence of $\beta$, the ratio of rot
Externí odkaz:
http://arxiv.org/abs/2106.10381
Autor:
Beuther, H., Wang, Y., Soler, J. D., Linz, H., Henshaw, J., Vazquez-Semadeni, E., Gomez, G., Ragan, S., Henning, Th., Glover, S. C. O., Lee, M. -Y., Guesten, R.
Publikováno v:
A&A 638, A44 (2020)
Context: Atomic and molecular cloud formation is a dynamical process. However, kinematic signatures of these processes are still observationally poorly constrained. Methods: Targeting the cloud-scale environment of the prototypical infrared dark clou
Externí odkaz:
http://arxiv.org/abs/2004.06501
Autor:
Schisano, E., Rygl, K. L., Molinari, S., Busquet, G., Elia, D., Pestalozzi, M., Polychroni, D., Billot, N., Noriega-Crespo, A., Carey, S., Paladini, R., Moore, T. J. T., Plume, R., Glover, S. C. O., Vazquez-Semadeni, E.
Observations of molecular clouds reveal a complex structure, with gas and dust often arranged in filamentary rather than spherical geometries. The associations of pre- and proto- stellar cores with the filaments suggest a direct link with the process
Externí odkaz:
http://arxiv.org/abs/1406.4443
Autor:
Heiner, J. S., Vázquez-Semadeni, E.
In this contribution, we test our previously published one-dimensional PDR model for deriving total hydrogen volume densities from HI column density measurements in extragalactic regions by applying it to the Taurus molecular cloud, where its predict
Externí odkaz:
http://arxiv.org/abs/1212.4171
We present the results of radiation-magnetohydrodynamic simulations of the expansion of HII regions and surrounding photodissociation regions in turbulent, magnetised, molecular clouds on scales of up to 4 parsecs, including the effects of ionising a
Externí odkaz:
http://arxiv.org/abs/1101.5510
{It has recently been proposed that giant molecular complexes form at the sites where streams of diffuse warm atomic gas collide at transonic velocities.} {We study the global statistics of molecular clouds formed by large scale colliding flows of wa
Externí odkaz:
http://arxiv.org/abs/0805.1366
(Abridged) The formation of molecular clouds (MCs) from the diffuse interstellar gas appears to be a necessary step for star formation, as young stars invariably occur within them. However, the mechanisms controlling the formation of MCs remain contr
Externí odkaz:
http://arxiv.org/abs/0711.2417