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pro vyhledávání: '"K. Ohnaka"'
Akademický článek
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Autor:
Th. Rivinius, C. M. P. Russell, A. Domiciano de Souza, Uwe Beckmann, Lucas Labadie, F. Allouche, P. Cruzalèbes, Sylvie Robbe-Dubois, Antoine Mérand, William C. Danchi, A. F. J. Moffat, Kenji Hamaguchi, Michael F. Corcoran, József Varga, Alexis Matter, Thomas I. Madura, Stephane Lagarde, Sebastian Wolf, Anthony Meilland, Walter Jaffe, Paul Bristow, T. R. Gull, Felix Bettonvil, D. A. Espinoza-Galeas, Jose H. Groh, J. C. Augereau, Carsten Dominik, W. J. de Wit, Markus Schöller, J. Leftley, V. Hocdé, Uwe Graser, R. van Boekel, F. Navarete, L. Klarmann, K. Ohnaka, Leonard Burtscher, Th. Henning, Karl-Heinz Hofmann, Augusto Damineli, Ian R. Stevens, C. Connot, Klaus Meisenheimer, Stefan Kraus, Patrick W. Morris, G. Yoffe, Michiel R. Hogerheijde, Romain Petrov, Ph. Berio, M. Heininger, Henrik Hartman, J. W. Isbell, Markus Wittkowski, Eric Pantin, E. Kokoulina, J. Drevon, Julien Woillez, L. B. F. M. Waters, E. Nußbaum, Dieter Schertl, Bruno Lopez, Alexander Kreplin, Gerd Weigelt, Florentin Millour, D. J. Hillier, J. Hron, M. Lehmitz, V. Gámez Rosas, J. Sanchez-Bermudez, Noel D. Richardson, C. A. Hummel, Claudia Paladini, Andrea Mehner, Farrokh Vakili, Andreas Glindemann, P. Antonelli, C. Leinert, Gérard Zins, Philippe Stee
Publikováno v:
Astronomy & Astrophysics, 652:A140. EDP Sciences
Astronomy & Astrophysics, 652
Astronomy & Astrophysics, 652, 1-22
Astronomy & Astrophysics, 652, pp. 1-22
Astronomy & Astrophysics, 652
Astronomy & Astrophysics, 652, 1-22
Astronomy & Astrophysics, 652, pp. 1-22
Context. Eta Carinae is a highly eccentric, massive binary system (semimajor axis ~15.5 au) with powerful stellar winds and a phase-dependent wind-wind collision (WWC) zone. The primary star, η Car A, is a luminous blue variable (LBV); the secondary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d06daaf6607db2ea8e3aee0292014bdb
https://dare.uva.nl/personal/pure/en/publications/vltimatisse-chromatic-aperturesynthesis-imaging-of--carinaes-stellar-wind-across-the-br-line(1b2ef33d-ecf6-411a-8241-108b7aa6f984).html
https://dare.uva.nl/personal/pure/en/publications/vltimatisse-chromatic-aperturesynthesis-imaging-of--carinaes-stellar-wind-across-the-br-line(1b2ef33d-ecf6-411a-8241-108b7aa6f984).html
Akademický článek
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VLTI-MATISSE L- and N-band aperture-synthesis imaging of the unclassified B[e] star FS Canis Majoris
Autor:
K.-H. Hofmann, A. Bensberg, D. Schertl, G. Weigelt, S. Wolf, A. Meilland, F. Millour, L. B. F. M. Waters, S. Kraus, K. Ohnaka, B. Lopez, R. G. Petrov, S. Lagarde, Ph. Berio, F. Allouche, S. Robbe-Dubois, W. Jaffe, Th. Henning, C. Paladini, M. Schöller, A. Mérand, A. Glindemann, U. Beckmann, M. Heininger, F. Bettonvil, G. Zins, J. Woillez, P. Bristow, P. Stee, F. Vakili, R. van Boekel, M. R. Hogerheijde, C. Dominik, J.-C. Augereau, A. Matter, J. Hron, E. Pantin, Th. Rivinius, W.-J. de Wit, J. Varga, L. Klarmann, K. Meisenheimer, V. Gámez Rosas, L. Burtscher, J. Leftley, J. W. Isbell, G. Yoffe, E. Kokoulina, W. C. Danchi, P. Cruzalèbes, A. Domiciano de Souza, J. Drevon, V. Hocdé, A. Kreplin, L. Labadie, C. Connot, E. Nußbaum, M. Lehmitz, P. Antonelli, U. Graser, C. Leinert
Publikováno v:
Astronomy & Astrophysics, 658, pp. 1-25
Astronomy & Astrophysics, 658, 1-25
Astronomy and Astrophysics, 658:A81. EDP Sciences
Astronomy & Astrophysics, 658:A81
Astronomy & Astrophysics, 658, 1-25
Astronomy and Astrophysics, 658:A81. EDP Sciences
Astronomy & Astrophysics, 658:A81
Context: FS Canis Majoris (FS CMa, HD 45677) is an unclassified B[e] star surrounded by an inclined dust disk. The evolutionary stage of FS CMa is still debated. Perpendicular to the circumstellar disk, a bipolar outflow was detected. Infrared apertu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2864d53187c767aa14e7a8ef33c15f55
Autor:
K. Ohnaka
Publikováno v:
Proceedings of the International Astronomical Union. 12:97-103
Despite its importance on late stages of the evolution of massive stars, the mass loss from red supergiants (RSGs) is a long-standing problem. To tackle this problem, it is essential to observe the wind acceleration region close to the star with high
We present a near-infrared spectro-interferometric observation of the non-Mira-type, semiregular asymptotic giant branch star SW Vir. Our aim is to probe the physical properties of the outer atmosphere with spatially resolved data in individual molec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::830d1b862b5e7d9e06b6e66adf33e46f
http://arxiv.org/abs/1811.05989
http://arxiv.org/abs/1811.05989
Publikováno v:
Nature. 548:310-312
Red supergiant stars represent a late stage of the evolution of stars more massive than about nine solar masses, in which they develop complex, multi-component atmospheres. Bright spots have been detected in the atmosphere of red supergiants using in
Autor:
K. Ohnaka, C. A. L. Morales Marín
The outer atmosphere of K giants shows thermally inhomogeneous structures consisting of the hot chromospheric gas and the cool molecular gas. We present spectro-interferometric observations of the multicomponent outer atmosphere of the well-studied K
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9affda5ea766ca2cd8a131a8f4d0b0cd
http://arxiv.org/abs/1809.01181
http://arxiv.org/abs/1809.01181
Autor:
Leen Decin, Anita M. S. Richards, Iain McDonald, Alex de Koter, Pierre Kervella, Ward Homan, K. Ohnaka
Publikováno v:
Astronomy & Astrophysics, 601:A5. EDP Sciences
Homan, W, Richards, A, Decin, L, Kervella, P, de Koter, A, Mcdonald, I & Ohnaka, K 2017, ' ALMA observations of the nearby AGB star L2 Puppis II. Gas disk properties derived from 12CO and 13CO J = 3–2 emission ', Astronomy & Astrophysics . https://doi.org/10.1051/0004-6361/201630340
Homan, W, Richards, A, Decin, L, Kervella, P, de Koter, A, Mcdonald, I & Ohnaka, K 2017, ' ALMA observations of the nearby AGB star L2 Puppis II. Gas disk properties derived from 12CO and 13CO J = 3–2 emission ', Astronomy & Astrophysics . https://doi.org/10.1051/0004-6361/201630340
The circumstellar environment of the AGB star L$_{\rm 2}$ Puppis was observed with ALMA in cycle 3, with a resolution of $15 \times 18 \rm\ mas$. The molecular emission shows a differentially rotating disk, inclined to a nearly edge-on position. In t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32785a4b06d5de367450194c2c660f55
http://arxiv.org/abs/1803.05222
http://arxiv.org/abs/1803.05222
Autor:
T. Wakasa, J. Yasuda, M. Dozono, T. Fukunaga, S. Gotanda, K. Hatanaka, K. Ishibashi, Y. Kanaya, S. Kimura, Y. Maeda, Y. Nishio, T. Noro, T. Nozoe, K. Ohnaka, S. Sakaguchi, Y. Sakemi, K. Sekiguchi, T. Taguchi, Y. Wada
Publikováno v:
Physical Review C. 96
We report measurements of cross sections and analyzing powers for nucleon-knockout $(\stackrel{P\vec}{p},np)$ reactions of $^{2}\mathrm{H}, ^{6}\mathrm{Li}$, and $^{12}\mathrm{C}$ at 296 MeV using the RCNP NPOL3 neutron detector and large acceptance