Zobrazeno 1 - 8 of 8 pro vyhledávání: '"T. I. Madura"'
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ASTRONOMY FOR STUDENTS WITH VISUAL IMPAIRMENTS: DEVELOPMENT OF THE CAREER EXPLORATION LAB
Autor: T. I. Madura, C. Christian, T. Wild, D. Hurd, J. Harris, L. Bartolone, K. Silberman, S. McVoy, K. Walker
Publikováno v: Revista Mexicana de Astronomía y Astrofísica Serie de Conferencias. 54:71-74
For students with visual impairments (VI), the possibility of a future in astronomy, or any science, technology, engineering, and mathematics (STEM) field, seems daunting. In order to bolster astronomy and STEM opportunities for high school students
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d209198387d85772c7678f3aab00fb94
https://doi.org/10.22201/ia.14052059p.2022.54.15
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2
The wind-wind collision hole in eta Car
Autor: M. Teodoro, Jose H. Groh, Augusto Damineli, Gerd Weigelt, Michael F. Corcoran, T. I. Madura, A. F. J. Moffat, Noel D. Richardson, D. J. Hillier, K. R. Pollard, T. R. Gull, Christopher T. Russell, Kenji Hamaguchi
Publikováno v: Proceedings of the International Astronomical Union. 12:186-190
Eta Carinae is one of the most massive observable binaries. Yet determination of its orbital and physical parameters is hampered by obscuring winds. However the effects of the strong, colliding winds changes with phase due to the high orbital eccentr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::589583befcb41a9ba727fa170c63ed49
https://doi.org/10.1017/s1743921317002630
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3
Constraints on decreases in η Carinae's mass-loss from 3D hydrodynamic simulations of its binary colliding winds
Autor: Michael F. Corcoran, T. I. Madura, Atsuo T. Okazaki, M. Teodoro, T. R. Gull, Jose H. Groh, Stan Owocki, C. M. P. Russell, Kenji Hamaguchi
Publikováno v: \mnras
Recent work suggests that the mass-loss rate of the primary star (Eta A) in the massive colliding wind binary Eta Carinae dropped by a factor of 2-3 between 1999 and 2010. We present results from large- (r=1545au) and small- (r=155au) domain, 3D smoo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c579aaeddd23715798e2004f2667eb3
https://doi.org/10.1093/mnras/stt1871
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4
VLTI-AMBER velocity-resolved aperture-synthesis imaging of Eta Carinae with a spectral resolution of 12000. Studies of the primary star wind and innermost wind-wind collision
Autor: R. Grellmann, Dieter Schertl, Michael F. Corcoran, Sridharan Rengaswamy, Gerd Weigelt, T. I. Madura, D. J. Hillier, Th. Rivinius, F. Patru, M. Teodoro, Markus Schöller, K. Ohnaka, M. Heininger, S. Guieu, A. Mérand, R. G. Petrov, T. R. Gull, Nicola Clementel, Karl-Heinz Hofmann, A. F. J. Moffat, Stefan Kraus, F. Millour, W. J. de Wit, J. H. Groh, Andrea Mehner, Noel D. Richardson, C. A. Hummel, Augusto Damineli, Markus Wittkowski
Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2016, ⟨10.1051/0004-6361/201628832⟩
International audience; Context. The mass loss from massive stars is not understood well. Eta Car is a unique object for studying the massive stellar wind during the LBV phase. It is also an eccentric binary with a period of 5.54 yr. The nature of bo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e1398ed82b1220d3cf97bd3ced6cae2
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5
He II λ4686 emission from the massive binary system in η car: constraints to the orbital elements and the nature of the periodic minima
Autor: Paul Luckas, Noel D. Richardson, William Henrique, A. F. J. Moffat, Michael F. Corcoran, T. I. Madura, Christopher T. Russell, Bernard Heathcote, Gerd Weigelt, Lucas St-Jean, Thiago Antônio Moretti de Andrade, D. J. Hillier, Augusto Damineli, Jonathan Powles, Roberto Claudio Gamen, Francisco Jablonski, Terry Bohlsen, Rodrigo Prates, M. Teodoro, Jose H. Groh, F. M. Walter, Kenji Hamaguchi, T. R. Gull, Rolf Chini, F. Navarete, E. Fernández-Lajús, K. R. Pollard, Adriano M. Coimbra, G. R. Hickel, Malcolm Locke
Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
{\eta} Carinae is an extremely massive binary system in which rapid spectrum variations occur near periastron. Most notably, near periastron the He II $\lambda 4686$ line increases rapidly in strength, drops to a minimum value, then increases briefly
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::737ac243d101846e4948a5316578d164
http://sedici.unlp.edu.ar/handle/10915/86905
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6
3D radiative transfer simulations of Eta Carinae's inner colliding winds - II: Ionization structure of helium at periastron
Autor: N. Clementel, T. I. Madura, C. J. H. Kruip, J.-P. Paardekooper
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: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87a2c33a6bdaf755315c428f89f27776
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