Zobrazeno 1 - 10
of 208
pro vyhledávání: '"Anugu Narsireddy"'
Autor:
Holdsworth, Amanda, Richardson, Noel, Schaefer, Gail H., Eldridge, Jan J., Hill, Grant M., Spejcher, Becca, Mackey, Jonathan, Moffat, Anthony F. J., Navarete, Felipe, Monnier, John D., Kraus, Stefan, Bouquin, Jean-Baptiste Le, Anugu, Narsireddy, Chhabra, Sorabh, Codron, Isabelle, Ennis, Jacob, Gardner, Tyler, Gutierrez, Mayra, Ibrahim, Noura, Labdon, Aaron, Lanthermann, Cyprien, Setterholm, Benjamin R.
Classical Wolf-Rayet stars are descendants of massive OB-type stars that have lost their hydrogen-rich envelopes, and are in the final stages of stellar evolution, possibly exploding as type Ib/c supernovae. It is understood that the mechanisms drivi
Externí odkaz:
http://arxiv.org/abs/2411.01062
Autor:
Richardson, Noel D., Schaefer, Gail H., Eldridge, Jan J., Spejcher, Rebecca, Holdsworth, Amanda, Lau, Ryan M., Monnier, John D., Moffat, Anthony F. J., Weigelt, Gerd, Williams, Peredur M., Kraus, Stefan, Bouquin, Jean-Baptiste Le, Anugu, Narsireddy, Chhabra, Sorabh, Codron, Isabelle, Ennis, Jacob, Gardner, Tyler, Gutierrez, Mayra, Ibrahim, Noura, Labdon, Aaron, Lanthermann, Cyprien, Setterholm, Benjamin R.
Classical Wolf-Rayet stars are the descendants of massive OB stars that have lost their hydrogen envelopes and are burning helium in their cores prior to exploding as type Ib/c supernovae. The mechanisms for losing their hydrogen envelopes are either
Externí odkaz:
http://arxiv.org/abs/2410.09259
Autor:
Berdeu, Anthony, Bonnet, Henri, Bouquin, Jean-Baptiste Le, Kolb, Johann, Bourdarot, Guillaume, Berio, Philippe, Paumard, Thibaut, Eisenhauer, Frank, Straubmeier, Christian, Garcia, Paulo, Hönig, Sebastian, Millour, Florentin, Kreidberg, Laura, Defrère, Denis, Soulez, Ferréol, Mourard, Denis, Schaefer, Gail, Anugu, Narsireddy
Performances of an adaptive optics (AO) system are directly linked with the quality of its alignment. During the instrument calibration, having open loop fast tools with a large capture range are necessary to quickly assess the system misalignment an
Externí odkaz:
http://arxiv.org/abs/2410.06569
Autor:
Anugu, Narsireddy, Gies, Douglas R., Roettenbacher, Rachael M., Monnier, John D., Montargés, Miguel, Mérand, Antoine, Baron, Fabien, Schaefer, Gail H., Shepard, Katherine A., Kraus, Stefan, Anderson, Matthew D., Codron, Isabelle, Gardner, Tyler, Gutierrez, Mayra, Köhler, Rainer, Kubiak, Karolina, Lanthermann, Cyprien, Majoinen, Olli, Scott, Nicholas J., Vollmann, Wolfgang
Stars with initial masses larger than 8 solar masses undergo substantial mass loss through mechanisms that remain elusive. Unraveling the origins of this mass loss is important for comprehending the evolutionary path of these stars, the type of super
Externí odkaz:
http://arxiv.org/abs/2408.11906
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:
Evans, Nancy Remage, Schaefer, Gail, Gallenne, Alexandre, Torres, Guillermo, Horch, Elliot P., Anderson, Richard I, Monnier, John, Roettenbacher, Rachael M., Baron, Fabien, Anugu, Narsireddy, Davidson, Jr., James W., Kervella, Pierre, Bras, Garance, Proffitt, Charles, Mérand, Antoine, Karovska, Margarita, Jones, Jeremy, Lanthermann, Cyprien, Kraus, Stefan, Codron, Isabelle, Bond, Howard E., Viviani, Giordano
The 30 year orbit of the Cepheid Polaris has been followed with observations by the CHARA Array (Center for High Angular Resolution Astronomy) from 2016 through 2021. An additional measurement has been made with speckle interferometry at the Apache P
Externí odkaz:
http://arxiv.org/abs/2407.09641
Autor:
Anugu, Narsireddy, brummelaar, Theo A. ten, Lanthermann, Cyprien, Tuthill, Peter G., Ligon III, Edgar R., Schaefer, Gail H., Gies, Douglas R., Piroscia, Grace, Taras, Adam, van Belle, Gerard T., Kishimoto, Makoto, Martinod, Marc-Antoine
The newly installed Silmaril beam combiner at the CHARA array is designed to observe previously inaccessible faint targets, including Active Galactic Nuclei and T-Tauri Young Stellar Objects. Silmaril leverages cutting-edge optical design, low readou
Externí odkaz:
http://arxiv.org/abs/2406.17886
Autor:
Evans, Nancy Remage, Gallenne, Alexandre, Kervella, Pierre, Mérand, Antoine, Monnier, John, Anderson, Richard I, Günther, H. Moritz, Proffitt, Charles, Winston, Elaine M., Pietrzynski, Grzegorz, Gieren, Wolfgang, Kuraszkiewicz, Joanna, Anugu, Narsireddy, Roettenbacher, Rachael M., Lanthermann, Cyprien, Gutierrez, Mayra, Schaefer, Gail, Setterholm, Benjamin R., Ibrahim, Noura, Kraus, Stefan
The Cepheid AW Per is a component in a multiple system with a long period orbit. The radial velocities of Griffin (2016) cover the 38 year orbit well. An extensive program of interferometry with the CHARA array is reported here, from which the long p
Externí odkaz:
http://arxiv.org/abs/2406.17881
Autor:
Torres, Guillermo, Schaefer, Gail H., Stefanik, Robert P., Latham, David W., Boden, Andrew F., Anugu, Narsireddy, Jones, Jeremy W., Klement, Robert, Kraus, Stefan, Lanthermann, Cyprien, Monnier, John D.
We report long baseline interferometric observations with the CHARA Array that resolve six previously known double-lined spectroscopic binary systems in the Hyades cluster, with orbital periods ranging from 3 to 358 days: HD 27483, HD 283882, HD 2687
Externí odkaz:
http://arxiv.org/abs/2406.01674