Zobrazeno 1 - 10
of 179
pro vyhledávání: '"CHARA array"'
Autor:
Benjamin R. Setterholm, Andrew G. Fullard, John D. Monnier, Stefan Kraus, Cyprien Lanthermann, Gail H. Schaefer, Andreas Sander, Laura Lee, Noel D. Richardson, Narsireddy Anugu, Tyler Gardner, Grant M. Hill, Tomer Shenar, Claire L. Davies
Publikováno v:
The Astrophysical Journal
We present the first visual orbit for the nitrogen-rich Wolf-Rayet binary, WR 133 (WN5o + O9I) based on observations made with the CHARA Array and the MIRC-X combiner. This orbit represents the first visual orbit for a WN star and only the third Wolf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ab2c77504b356c119b8987cf761948b
https://lirias.kuleuven.be/handle/123456789/673143
https://lirias.kuleuven.be/handle/123456789/673143
Autor:
Thomas Eversberg, Brendan McBride, Jean-Baptiste Le Bouquin, R. Leadbeater, Benjamin R. Setterholm, Cyprien Lanthermann, Andrew Couperus, Tyler Gardner, Berthold Stober, Courtney Maki, T. ten Brummelaar, Hugues Sana, John D. Monnier, Jacob Ennis, Gail Schaefer, Michael F. Corcoran, J. Ribeiro, Dogus Ozuyar, Narsireddy Anugu, Aaron Labdon, Mackenna Wood, Tim Lester, Ian R. Stevens, Joan Guarro Fló, John J. Eldridge, Claire L. Davies, Peredur M. Williams, Oliver Garde, Gerd Weigelt, Farrah D Zainol, Noel D. Richardson, Joshua D. Thomas, Anthony F. J. Moffat, Stefan Kraus, Uwe Zurmühl, Fran Campos
Publikováno v:
Monthly Notices of the Royal Astronomical Society
We present updated orbital elements for the Wolf-Rayet (WR) binary WR\,140 (HD\,193793; WC7pd + O5.5fc). The new orbital elements were derived using previously published measurements along with {\color{black}160} new radial velocity measurements acro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::052205a1bfa60da3dcb471196561e111
http://arxiv.org/abs/2101.10563
http://arxiv.org/abs/2101.10563
Autor:
Judit Sturmann, Matthew Anderson, John Monnier, Cyprien Lanthermann, Benjamin R. Setterholm, Tyler Gardner, Stefan Kraus, Narsireddy Anugu, Norm Vargas, Chris Farrington, T. ten Brummelaar, Jacob Ennis, Olli Majoinen, Aaron Labdon, Gail H. Schaefer, Jean-Baptiste Le Bouquin, Claire L. Davies
Publikováno v:
Optical and Infrared Interferometry and Imaging VII
MIRC-X is a six telescope beam combiner at the CHARA array that works in J and H wavelength bands and provides an angular resolution equivalent to a $B$=331m diameter telescope. The legacy MIRC combiner has delivered outstanding results in the fields
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc838d235d9ca2ee26185c107703bcf6
http://arxiv.org/abs/2012.11666
http://arxiv.org/abs/2012.11666
Autor:
T. ten Brummelaar, Douglas R. Gies, Laszlo Sturmann, Denis Mourard, Matthew D. Anderson, Philippe Berio, Cyril Petit, John Monnier, Stefan Kraus, C. B. Lim, Michel Tallon, Michael J. Ireland, Norm Vargas, Judit Sturmann, Chris Farrington, Stephen T. Ridgway, Narsireddy Anugu, Jean Baptiste Le Bouquin, Olli Majoinen, Gail H. Schaefer, Nils H. Turner
Publikováno v:
SPIE Astronomical Telescopes + Instrumentation 2020
SPIE Astronomical Telescopes + Instrumentation 2020, Dec 2020, Online Only, Japan. pp.1144622, ⟨10.1117/12.2561560⟩
Optical and Infrared Interferometry and Imaging VII
Optical and Infrared Interferometry and Imaging VII, Dec 2020, Online Only, France. pp.47, ⟨10.1117/12.2561560⟩
11446, SPIE, pp.1144622, 2020, Optical and Infrared Interferometry and Imaging VII, ⟨10.1117/12.2561560⟩
SPIE Astronomical Telescopes + Instrumentation 2020, Dec 2020, Online Only, Japan. pp.1144622, ⟨10.1117/12.2561560⟩
Optical and Infrared Interferometry and Imaging VII
Optical and Infrared Interferometry and Imaging VII, Dec 2020, Online Only, France. pp.47, ⟨10.1117/12.2561560⟩
11446, SPIE, pp.1144622, 2020, Optical and Infrared Interferometry and Imaging VII, ⟨10.1117/12.2561560⟩
The CHARA Array is the longest baseline optical interferometer in the world. Operated with natural seeing, it has delivered landmark sub-milliarcsecond results in the areas of stellar imaging, binaries, and stellar diameters. However, to achieve ambi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f80ba442b187cc638c77c353627c5990
https://doi.org/10.1117/12.2561560
https://doi.org/10.1117/12.2561560
Autor:
T. ten Brummelaar, Craig Woods, Gail Schaefer, Matthew D. Anderson, Larry Webster, Olli Majoinen, Robert Klement, Judit Sturmann, Steve Golden, Jeremy Jones, Chris Farrington, Nils H. Turner, Laszlo Sturmann, Stephen T. Ridgway, Douglas R. Gies, Norm Vargas
Publikováno v:
Optical and Infrared Interferometry and Imaging VII.
The CHARA Array is an optical/infrared interferometer that combines the light from six 1-meter telescopes. With baselines ranging from 34 to 331 meters, CHARA provides sub-milliarcsecond resolution to measure stellar diameters, image stellar surfaces
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6f286d75c93c0820be3d1aa59af3600
https://doi.org/10.1117/12.2562665
https://doi.org/10.1117/12.2562665
Autor:
Narsireddy Anugu, Stefan Kraus, Laszlo Sturmann, John D. Monnier, Jean-Baptiste Le Bouquin, Judit Sturmann, Benjamin R. Setterholm, Tyler Gardner, Gail Schaefer, Cyprien Lanthermann, Claire L. Davies, Aaron Labdon, T. ten Brummelaar, Jacob Ennis
Publikováno v:
Optical and Infrared Interferometry and Imaging VII
In this contribution we report on our work to increase the spectral range of the Michigan Infrared Combiner- eXeter (MIRC-X) instrument at the CHARA array to allow for dual H and J band interferometric observations. We comment on the key science driv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62f7a74e06a870d13293e53263adb0a3
https://doi.org/10.1117/12.2561371
https://doi.org/10.1117/12.2561371
Autor:
Rachael M. Roettenbacher
Publikováno v:
Optical and Infrared Interferometry and Imaging VII.
Long-baseline optical interferometry has provided a method with which stars are not only resolved, but directly imaged. Resolving features on stellar surfaces is becoming routine for observers using the Center for High Angular Resolution Astronomy (C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cfb8ac9b8a0fec123acd630c666d145
https://doi.org/10.1117/12.2561881
https://doi.org/10.1117/12.2561881
Autor:
Thomas Nordlander, Daniel Huber, Timothy R. White, I. Karovicova, Luca Casagrande, Paula Jofre, Michael J. Ireland
Publikováno v:
Karovicova, I, White, T R, Nordlander, T, Casagrande, L, Ireland, M, Huber, D & Jofré, P 2020, ' Fundamental stellar parameters of benchmark stars from CHARA interferometry : I. Metal-poor stars ', Astronomy and Astrophysics, vol. 640, 202037590 . https://doi.org/10.1051/0004-6361/202037590
Benchmark stars are crucial as validating standards for current as well as future large stellar surveys of the Milky Way. However, the number of suitable metal-poor benchmarks is currently limited. We aim to construct a new set of metal-poor benchmar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aaa213eb5a7d5e03ee65cc83bd01121c
http://arxiv.org/abs/2006.05411
http://arxiv.org/abs/2006.05411
Autor:
Chris Farrington, Matthew W. Muterspaugh, John D. Monnier, T. ten Brummelaar, Francis C. Fekel, Judit Sturmann, Samuel A. Weiss, Douglas R. Gies, Rachel A. Matson, Zhao Guo, Gail H. Schaefer, Kathryn V. Lester
We present the visual orbits of two long period spectroscopic binary stars, HD 8374 and HD 24546, using interferometric observations acquired with the CHARA Array and the Palomar Testbed Interferometer. We also obtained new radial velocities from ech
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7641c5e85c5624cb3744a97c99a57ada
http://arxiv.org/abs/2005.00546
http://arxiv.org/abs/2005.00546
Autor:
Steve Ertel, Ewan S. Douglas, Jean Baptiste Lebouquin, Sebastiaan Y. Haffert, Daniel P. Marrone, Jean Philippe Berger, Jordan Stone, Julien Woillez, Oscar M. Montoya, Narsireddy Anugu, Miguel Montargès, Katie M. Morzinski, Josh A. Eisner, John Monnier, Stefan Kraus
Betelgeuse has gone through a sudden shift in its brightness and dimmed mysteriously. This is likely caused by a hot blob of plasma ejected from Betelgeuse and then cooled to obscuring dust. If true, it is a remarkable opportunity to directly witness
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::826db8170359545e696b90e0b425b12d