Výsledky vyhledávání - "Clementel, Nicola"

Report

Developing a self-consistent AGB wind model: I. Chemical, thermal, and dynamical coupling

Autor: Boulangier, Jels, Clementel, Nicola, van Marle, Allard Jan, Decin, Leen, de Koter, Alex

The material lost through stellar winds of Asymptotic Giant Branch (AGB) stars is one of the main contributors to the chemical enrichment of galaxies. The general hypothesis of the mass loss mechanism of AGB winds is a combination of stellar pulsatio

Externí odkaz: http://arxiv.org/abs/1809.07578

Zobrazit plný text záznamu

Report

The fossil wind structures of Eta Carinae: changes across on 5.54-year cycle

Autor: Gull, Theodore R., Madura, Thomas I., Teodoro, Mairan, Clementel, Nicola, Corcoran, Michael, Damineli, Augusto, Groh, Jose H., Hamaguchi, Kenji, Hiller, D. John, Moffat, Anthony F. J., Richardson, Noel D., Weigelt, Gerd, Lindler, Don, Feggans, Keith

Eta Carinae, the closest, active, massive binary containing a highly unstable LBV, exhibits expanding, compressed wind shells, seen in emission, that are spatially and spectrally resolved by \hst/\stis. Starting in June 2009, these structures were ma

Externí odkaz: http://arxiv.org/abs/1608.06193

Zobrazit plný text záznamu

Report

To $v_\infty$ and beyond! The He I absorption variability across the 2014.6 periastron passage of $\eta$ Carinae

Autor: Richardson, Noel D., Madura, Thomas I., St-Jean, Lucas, Moffat, Anthony F. J., Gull, Theodore R., Russell, Christopher M. P., Damineli, Augusto, Teodoro, Mairan, Corcoran, Michael F., Walter, Frederick M., Clementel, Nicola, Groh, José H., Hamaguchi, Kenji, Hillier, D. John

We have monitored the massive binary star $\eta$ Carinae with the CTIO/SMARTS 1.5~m telescope and CHIRON spectrograph from the previous apastron passage of the system through the recent 2014.6 periastron passage. Our monitoring has resulted in a larg

Externí odkaz: http://arxiv.org/abs/1606.03655

Zobrazit plný text záznamu

Report

3D hydrodynamical and radiative transfer modeling of Eta Carinae's colliding winds

Autor: Madura, Thomas I., Clementel, Nicola, Gull, Theodore R., Kruip, Chael J. H., Paardekooper, Jan-Pieter, Icke, Vincent

We present results of full 3D hydrodynamical and radiative transfer simulations of the colliding stellar winds in the massive binary system Eta Carinae. We accomplish this by applying the SimpleX algorithm for 3D radiative transfer on an unstructured

Externí odkaz: http://arxiv.org/abs/1508.03861

Zobrazit plný text záznamu

Report

3D radiative transfer simulations of Eta Carinae's inner colliding winds - II: Ionization structure of helium at periastron

Autor: Clementel, Nicola, Madura, Thomas I., Kruip, Chael J. H., Paardekooper, Jan-Pieter

Spectral observations of the massive colliding wind binary Eta Carinae show phase-dependent variations, in intensity and velocity, of numerous helium emission and absorption lines throughout the entire 5.54-year orbit. Approaching periastron, the 3D

Externí odkaz: http://arxiv.org/abs/1503.08011

Zobrazit plný text záznamu

Report

3D Printing Meets Computational Astrophysics: Deciphering the Structure of Eta Carinae's Inner Colliding Winds

Autor: Madura, Thomas I., Clementel, Nicola, Gull, Theodore R., Kruip, Chael J. H., Paardekooper, Jan-Pieter

We present the first 3D prints of output from a supercomputer simulation of a complex astrophysical system, the colliding stellar winds in the massive (>120 M_Sun), highly eccentric (e ~ 0.9) binary star system Eta Carinae. We demonstrate the methodo

Externí odkaz: http://arxiv.org/abs/1503.00716

Zobrazit plný text záznamu

Report

3D radiative transfer simulations of Eta Carinae's inner colliding winds - I. Ionization structure of helium at apastron

Autor: Clementel, Nicola, Madura, Thomas I., Kruip, Chael, Paardekooper, Jan-Pieter, Gull, Theodore R.

The highly eccentric binary system Eta Carinae shows numerous time-variable emission and absorption features. These observational signatures are the result of interactions between the complex three-dimensional (3D) wind-wind collision regions and pho

Externí odkaz: http://arxiv.org/abs/1412.7569

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání