Zobrazeno 1 - 10
of 288
pro vyhledávání: '"R. Gull"'
Autor:
Ryan M. Lau, Matthew J. Hankins, Joel Sanchez-Bermudez, Deepashri Thatte, Anthony Soulain, Rachel A. Cooper, Anand Sivaramakrishnan, Michael F. Corcoran, Alexandra Z. Greenbaum, Theodore R. Gull, Yinuo Han, Olivia C. Jones, Thomas Madura, Anthony F. J. Moffat, Mark R. Morris, Takashi Onaka, Christopher M. P. Russell, Noel D. Richardson, Nathan Smith, Peter Tuthill, Kevin Volk, Gerd Weigelt, Peredur M. Williams
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 2, p 127 (2024)
We present infrared aperture-masking interferometry (AMI) observations of newly formed dust from the colliding winds of the massive binary Wolf–Rayet system WR 137 with JWST using the Near Infrared Imager and Slitless Spectrograph (NIRISS). NIRISS
Externí odkaz:
https://doaj.org/article/cf35d06a692047969b2b5e0a18f7f0db
Autor:
Augusto Damineli, Noel D. Richardson, Felipe Navarete, Theodore. R. Gull, Eduardo Fernández-Lajús, Anthony F. J. Moffat, Desmond J. Hillier, Gerd Weigelt, Michael F. Corcoran
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 2, p 114 (2024)
Changes in the flux and spectrum of Eta Carinae ( η Car) since 1900 have been attributed to the evolution of the central binary by some. Others suggest evolution in the occulting ejecta. The brightness jump in the 1940s, which coincided with the app
Externí odkaz:
https://doaj.org/article/1523da3e4d7f47cf8f1b7124246d8387
Autor:
Bautista, Manuel A., Fivet, Vanessa, Quinet, Pascal, Dunn, Jay, Kallman, Theodore R. Gull. Timothy R., Mendoza, Claudio
We present a method for computing uncertainties in spectral models, i.e. level populations, line emissivities, and emission line ratios, based upon the propagation of uncertainties originating from atomic data. We provide analytic expressions, in the
Externí odkaz:
http://arxiv.org/abs/1301.3463
Autor:
Emily Strawn, Noel D Richardson, Anthony F J Moffat, Nour Ibrahim, Alexis Lane, Connor Pickett, André-Nicolas Chené, Michael F Corcoran, Augusto Damineli, Theodore R Gull, D John Hillier, Patrick Morris, Herbert Pablo, Joshua D Thomas, Ian R Stevens, Mairan Teodoro, Gerd Weigelt
The binary eta Carinae is the closest example of a very massive star, which may have formed through a merger during its Great Eruption in the mid-nineteenth century. We aimed to confirm and improve the kinematics using a spectroscopic data set taken
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac70a651366712ecb424370d47e45b3b
https://resolver.caltech.edu/CaltechAUTHORS:20230314-845495900.63
https://resolver.caltech.edu/CaltechAUTHORS:20230314-845495900.63
Autor:
T. R. Gull, Peredur M. Williams, Michael F. Corcoran, Noel D. Richardson, Gerd Weigelt, André-Nicolas Chené, Christopher M. P. Russell, Ian R. Stevens, A. M. T. Pollock, Kenji Hamaguchi, Andreas Sander, W. P. Varricatt, Anthony F. J. Moffat
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 503:643-659
We present spectroscopy of the P~Cygni profile of the 1.083-micron He I line in the WC7 + O5 colliding-wind binary (CWB) WR 140 (HD 193793), observed in 2008, before its periastron passage in 2009, and in 2016-17, spanning the subsequent periastron p
Autor:
Ryan M. Lau, Matthew J. Hankins, Yinuo Han, Ioannis Argyriou, Michael F. Corcoran, Jan J. Eldridge, Izumi Endo, Ori D. Fox, Macarena Garcia Marin, Theodore R. Gull, Olivia C. Jones, Kenji Hamaguchi, Astrid Lamberts, David R. Law, Thomas Madura, Sergey V. Marchenko, Hideo Matsuhara, Anthony F. J. Moffat, Mark R. Morris, Patrick W. Morris, Takashi Onaka, Michael E. Ressler, Noel D. Richardson, Christopher M. P. Russell, Joel Sanchez-Bermudez, Nathan Smith, Anthony Soulain, Ian R. Stevens, Peter Tuthill, Gerd Weigelt, Peredur M. Williams, Ryodai Yamaguchi
Massive colliding-wind binaries that host a Wolf-Rayet (WR) star present a potentially important source of dust and chemical enrichment in the interstellar medium (ISM). However, the chemical composition and survival of dust formed from such systems
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4620175042c95b3b59102d0a76518c1
Autor:
Luis A. Zapata, Laurent Loinard, Manuel Fernández-López, Jesús A. Toalá, Ricardo F. González, Luis F. Rodríguez, Theodore R. Gull, Patrick W. Morris, Karl M. Menten, Tomasz Kamiński
The nature and origin of the molecular gas component located in the circumstellar vicinity of $\eta$ Carinae are still far from being completely understood. Here, we present Atacama Large Millimeter/Submillimeter Array (ALMA) CO(3$-$2) observations w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5b3343bb7cabfcf33916ddd62e49e01
Publikováno v:
Vol. 53, Issue 2. 53
Autor:
Theodore R. Gull, Felipe Navarete, Michael F. Corcoran, Augusto Damineli, David Espinoza, Kenji Hamaguchi, Henrik Hartman, D. John Hillier, Thomas Madura, Anthony F. J. Moffat, Patrick Morris, Krister Nielsen, Julian M. Pittard, Andrew M. T. Pollock, Noel D. Richardson, Christopher M. P. Russell, Ian R. Stevens, Gerd Weigelt
Since 2002, the far-ultraviolet (FUV) flux (1150–1680 Å) of Eta Carinae, monitored by the Hubble Space Telescope/Space Telescope Imaging Spectrograph, has increased by an order of magnitude. This increase is attributed to partial dissipation of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18d7c6ff12756c3779516f757298ebd9
https://resolver.caltech.edu/CaltechAUTHORS:20220107-81089900
https://resolver.caltech.edu/CaltechAUTHORS:20220107-81089900
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