Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Brummelaar, Theo Ten"'
Autor:
Ibrahim, Noura, Gutierrez, Mayra, Monnier, John D., Kraus, Stefan, Bouquin, Jean-Baptiste Le, Anugu, Narsireddy, Brummelaar, Theo ten, Chhabra, Sorabh, Codron, Isabelle, Dejonghe, Julien, Labdon, Aaron, Lecron, Daniel, Mortimer, Daniel, Mourard, Denis, Schaefer, Gail, Setterholm, Benjamin, Arnó, Manuela, Bianco, Andrea, Frangiamore, Michele, Jocou, Laurent
MIRC-X and MYSTIC are six-telescope near-infrared beam (1.08-2.38 ${\mu}$m) combiners at the CHARA Array on Mt Wilson CA, USA. Ever since the commissioning of MIRC-X (J and H bands) in 2018 and MYSTIC (K bands) in 2021, they have been the most popula
Externí odkaz:
http://arxiv.org/abs/2408.04038
Autor:
Anugu, Narsireddy, Baron, Fabien, Monnier, John D., Gies, Douglas R., Roettenbacher, Rachael M., Schaefer, Gail H., Montargès, Miguel, Kraus, Stefan, Bouquin, Jean-Baptiste Le, Anderson, Matthew D., Brummelaar, Theo ten, Codron, Isabelle, Farrington, Christopher D., Gardner, Tyler, Gutierrez, Mayra, Köhler, Rainer, Lanthermann, Cyprien, Norris, Ryan, Scott, Nicholas J., Setterholm, Benjamin R., Vargas, Norman L.
Massive evolved stars such as red supergiants and hypergiants are potential progenitors of Type II supernovae, and they are known for ejecting substantial amounts of matter, up to half their initial mass, during their final evolutionary phases. The r
Externí odkaz:
http://arxiv.org/abs/2408.02756
Autor:
Torres, Guillermo, Schaefer, Gail H., Stefanik, Robert P., Latham, David W., Jones, Jeremy, Lanthermann, Cyprien, Monnier, John D., Kraus, Stefan, Anugu, Narsireddy, Brummelaar, Theo ten, Chhabra, Sorabh, Codron, Isabelle, Ennis, Jacob, Gardner, Tyler, Gutierrez, Mayra, Ibrahim, Noura, Labdon, Aaron, Mortimer, Dan, Setterholm, Benjamin R.
We report near-infrared long-baseline interferometric observations of the Hyades multiple system HD 284163, made with the CHARA array, as well as almost 43 yr of high-resolution spectroscopic monitoring at the CfA. Both types of observations resolve
Externí odkaz:
http://arxiv.org/abs/2312.05301
Autor:
Mobeen, Muhammad Zain, Kamiński, Tomasz, Matter, Alexis, Wittkowski, Markus, Monnier, John D., Kraus, Stefan, Bouquin, Jean-Baptiste Le, Anugu, Narsireddy, Brummelaar, Theo Ten, Davies, Claire L., Ennis, Jacob, Gardner, Tyler, Labdon, Aaron, Lanthermann, Cyprien, Schaefer, Gail H., Setterholm, Benjamin R., Ibrahim, Nour, Howell, Steve B.
Publikováno v:
A&A 686, A260 (2024)
V838 Mon is a stellar merger remnant that erupted in 2002 in a luminous red novae event. Although it is well studied in the optical, near infrared and submillimeter regimes, its structure in the mid-infrared wavelengths remains elusive. We observed V
Externí odkaz:
http://arxiv.org/abs/2306.17586
Autor:
Labdon, Aaron, Kraus, Stefan, Davies, Claire L., Kreplin, Alexander, Zarrilli, Sebastian, Monnier, John D., Bouquin, Jean-Baptiste le, Anugu, Narsireddy, Setterholm, Benjamin, Gardner, Tyler, Ennis, Jacob, Lanthermann, Cyprien, Brummelaar, Theo ten, Schaefer, Gail, Harries, Tim J.
Publikováno v:
A&A 678, A6 (2023)
SU Aurigae is a widely studied T Tauri star and here we present original state-of-the-art interferometric observations with better uv and baseline coverage than previous studies. We aim to investigate the characteristics of the circumstellar material
Externí odkaz:
http://arxiv.org/abs/2306.06240
Autor:
Anugu, Narsireddy, Kluska, Jacques, Gardner, Tyler, Monnier, John D., Van Winckel, Hans, Schaefer, Gail H., Kraus, Stefan, Bouquin, Jean-Baptiste Le, Ertel, Steve, Mérand, Antoine, Klement, Robert, Davies, Claire L, Ennis, Jacob, Labdon, Aaron, Lanthermann, Cyprien, Setterholm, Benjamin R., Brummelaar, Theo ten, Corporaal, Akke, Sabin, Laurence, Rajagopal, Jayadev
Some evolved binaries, namely post-asymptotic giant branch binaries, are surrounded by stable and massive circumbinary disks similar to protoplanetary disks found around young stars. Around 10% of these disks are transition disks: they have a large i
Externí odkaz:
http://arxiv.org/abs/2305.02408
Autor:
Ibrahim, Nour, Monnier, John D., Kraus, Stefan, Bouquin, Jean-Baptiste Le, Anugu, Narsireddy, Baron, Fabien, Brummelaar, Theo Ten, Davies, Claire L., Ennis, Jacob, Gardner, Tyler, Labdon, Aaron, Lanthermann, Cyprien, Mérand, Antoine, Rich, Evan, Schaefer, Gail H., Setterholm, Benjamin R.
Inner regions of protoplanetary disks host many complex physical processes such as star-disk interactions, magnetic fields, planet formation, and the migration of new planets. To directly study this region requires milli-arcsecond angular resolution,
Externí odkaz:
http://arxiv.org/abs/2302.06500
Autor:
Lanthermann, Cyprien, Bouquin, Jean-Baptiste Le, Sana, Hugues, Mérand, Antoine, Monnier, John D., Perraut, Karine, Frost, Abigail J., Mahy, Laurent, Gosset, Eric, De Becker, Michael, Kraus, Stefan, Anugu, Narsireddy, Davies, Claire L., Ennis, Jacob, Gardner, Tyler, Labdon, Aaron, Setterholm, Benjamin, Brummelaar, Theo ten, Schaefer, Gail H.
Publikováno v:
A&A 672, A6 (2023)
The study of the multiplicity of massive stars gives hints on their formation processes and their evolutionary paths, which are still not fully understood. Large separation binaries (>50 milliseconds of arc, mas) can be probed by adaptive-optics-assi
Externí odkaz:
http://arxiv.org/abs/2302.03168
Autor:
Torres, Guillermo, Schaefer, Gail H., Monnier, John D., Anugu, Narsireddy, Davies, Claire L., Ennis, Jacob, Farrington, Christopher D., Gardner, Tyler, Klement, Robert, Kraus, Stefan, Labdon, Aaron, Lanthermann, Cyprien, Bouquin, Jean-Baptiste Le, Setterholm, Benjamin R., Brummelaar, Theo ten
Castor is a system of six stars in which the two brighter objects, Castor A and B, revolve around each other every $\sim$450 yr and are both short-period spectroscopic binaries. They are attended by the more distant Castor C, which is also a binary.
Externí odkaz:
http://arxiv.org/abs/2210.16322
Autor:
Pannetier, Cyril, Berio, Philippe, Mourard, Denis, Rousseau, Sylvain, Allouche, Fatme, Dejonghe, Julien, Bailet, Christophe, Lecron, Daniel, Cassaing, Frédéric, Bouquin, Jean-Baptiste Le, Perraut, Karine, Monnier, John D., Anugu, Narsireddy, Brummelaar, Theo ten
Publikováno v:
SPIE, Optical and Infrared Interferometry and Imaging VIII., p. 1218309 (2022)
SPICA-FT is part of the CHARA/SPICA instrument which combines a visible 6T fibered instrument (SPICAVIS) with a H-band 6T fringe sensor. SPICA-FT is a pairwise ABCD integrated optics combiner. The chip is installed in the MIRC-X instrument. The MIRC-
Externí odkaz:
http://arxiv.org/abs/2210.09042