Modeling of Spectroscopic and Interferometric Observations of the Herbig Star VV Ser with Hybrid Models

Autor: Alexander Kreplin, Gerd Weigelt, Vladimir Grinin, L. V. Tambovtseva

Publikováno v: Astronomy Reports. 64:336-349

Modeling of hydrogen emission lines is a powerful tool to study physical processes in the nearest vicinity of young stars because spectral lines carry information on the kinematics and physical conditions of the gas. One of the lines that probe emitt

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d747f4b9fb9bc2925924006690726aef
https://doi.org/10.1134/s1063772920040058

VLTI-MATISSE chromatic aperture-synthesis imaging of η Carinae's stellar wind across the Brα line: Periastron passage observations in February 2020

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

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

Variable warm dust around the Herbig Ae star HD~169142: Birth of a ring?

Autor: Ágnes Kóspál, Péter Ábrahám, Gerd Weigelt, L. Chen, Alexander Kreplin, Andres Carmona, Dieter Schertl, Alexis Matter, Attila Moór, Karl-Heinz Hofmann

Publikováno v: The Astrophysical Journal

The Herbig Ae star HD 169142 is known to have a gaseous disk with a large inner hole, and also a photometrically variable inner dust component in the sub-au region. Following up our previous analysis, we further studied the temporal evolution of inne

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7afc588a28ccb8a0481fff4a885e94c
http://arxiv.org/abs/1911.10253

Investigating the origin and spectroscopic variability of the near-infrared H i lines in the Herbig star VV Ser

Autor: Thomas P. Ray, Rebeca Garcia Lopez, Ryuichi Kurosawa, Larisa V. Tambovtseva, Gerd Weigelt, Alexander Kreplin, Alessio Caratti o Garatti, Vladimir Grinin

Publikováno v: Monthly Notices of the Royal Astronomical Society. 456:156-170

The origin of the near-infrared (NIR) HI emission lines in young stellar objects are not yet understood. To probe it, we present multi-epoch LBT-LUCIFER spectroscopic observations of the Pa{\delta}, Pa{\beta}, and Br{\gamma} lines observed in the Her

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c7bf6a2871a5040df520a3f2ff2c024
https://doi.org/10.1093/mnras/stv2664

Evidence of a discontinuous disk structure around the Herbig Ae star HD 139614 (Corrigendum)

Autor: Sebastian Wolf, Steve Ertel, J.-U. Pott, Bruno Lopez, Alexis Matter, Alexander Kreplin, Gerd Weigelt, W. C. Danchi, Lucas Labadie

Publikováno v: Astronomy & Astrophysics. 632:C2

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::636e240178b4421715e0f44a80dadbba
https://doi.org/10.1051/0004-6361/201322042e