Zobrazeno 1 - 10
of 627
pro vyhledávání: '"Kraus, Stefan"'
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
The Planet Formation Imager (PFI) Project is dedicated to defining a next-generation facility that can answer fundamental questions about how planets form, including detection of young giant exoplanets and their circumplanetary disks. The proposed ex
Externí odkaz:
http://arxiv.org/abs/2408.03896
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:
Martinod, Marc-Antoine, Defrère, Denis, Ireland, Michael J., Kraus, Stefan, Martinache, Frantz, Tuthill, Peter G., Allouche, Fatmé, Bouzerand, Emilie, Bryant, Julia, Carter, Josh, Chhabra, Sorabh, Courtney-Barrer, Benjamin, Crous, Fred, Cvetojevic, Nick, Dandumont, Colin, Ertel, Steve, Gardner, Tyler, Garreau, Germain, Glauser, Adrian M., Haubois, Xavier, Labadie, Lucas, Lagarde, Stéphane, Lancaster, Daniel, Laugier, Romain, Mazzoli, Alexandra, Meilland, Anthony, Missiaen, Kwinten, Morel, Sébastien, Mortimer, Daniel J., Norris, Barnaby, Paul, Jyotirmay, Raskin, Gert, Robbe-Dubois, Sylvie, Robertson, J. Gordon, Sanny, Ahmed, Schuhler, Nicolas, Snaith, Owain, Taras, Adam
ESO's Very Large Telescope Interferometer has a history of record-breaking discoveries in astrophysics and significant advances in instrumentation. The next leap forward is its new visitor instrument, called Asgard. It comprises four natively collabo
Externí odkaz:
http://arxiv.org/abs/2407.08431
Autor:
Defrère, Denis, Laugier, Romain, Martinod, Marc-Antoine, Garreau, Germain, Missiaen, Kwinten, Salman, Muhammad, Raskin, Gert, Dandumont, Colin, Ertel, Steve, Ireland, Michael J., Kraus, Stefan, Labadie, Lucas, Mazzoli, Alexandra, Medgyesi, Gyorgy, Sanny, Ahmed, Absil, Olivier, Ábráham, Peter, Berger, Jean-Philippe, Bonduelle, Myriam, Bigioli, Azzurra, Bouzerand, Emilie, Carter, Josh, Cvetojevic, Nick, Courtney-Barrer, Benjamin, Glauser, Adrian M., Gross, Simon, Haubois, Xavier, James, Noel, Joo, Andras Peter, Lagarde, Stephane, Léger, Alain, Leisenring, Jarron, Loicq, Jérôme, Martin, Guillermo, Martinache, Frantz, Mezo, Gyorgy, Morel, Sébastien, Morren, Johan, Ollivier, Marc, Robertson, Gordon, Rousseau, Hélène, Schofield, Warrick, Schuhler, Nicolas, Taras, Adam, Vandenbussche, Bart, Woillez, Julien
NOTT (formerly Hi-5) is the L'-band (3.5-4.0~microns) nulling interferometer of Asgard, an instrument suite in preparation for the VLTI visitor focus. The primary scientific objectives of NOTT include characterizing (i) young planetary systems near t
Externí odkaz:
http://arxiv.org/abs/2407.08397
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
Autor:
Echeverri, Daniel, Xuan, Jerry W., Monnier, John D., Delorme, Jacques-Robert, Wang, Jason J., Jovanovic, Nemanja, Horstman, Katelyn, Ruane, Garreth, Mennesson, Bertrand, Serabyn, Eugene, Mawet, Dimitri, Wallace, J. Kent, Hillman, Sofia, Baker, Ashley, Bartos, Randall, Calvin, Benjamin, Cetre, Sylvain, Doppmann, Greg, Finnerty, Luke, Fitzgerald, Michael P., Hsu, Chih-Chun, Liberman, Joshua, Lopez, Ronald, Millar-Blanchaer, Maxwell, Morris, Evan, Pezzato, Jacklyn, Ruffio, Jean-Baptiste, Sappey, Ben, Schofield, Tobias, Skemer, Andrew J., Wang, Ji, Xin, Yinzi, Anugu, Narsireddy, Chhabra, Sorabh, Ibrahim, Noura, Kraus, Stefan, Schaefer, Gail H., Lanthermann, Cyprien
Vortex fiber nulling (VFN) is a technique for detecting and characterizing faint companions at small separations from their host star. A near-infrared ($\sim2.3 \mu$m) VFN demonstrator mode was deployed on the Keck Planet Imager and Characterizer (KP
Externí odkaz:
http://arxiv.org/abs/2403.17295