Zobrazeno 1 - 10
of 440
pro vyhledávání: '"Vievard, A."'
Autor:
Morsy, Mona El, Currie, Thayne, Bovie, Danielle, Kuzuhara, Masayuki, Lacy, Brianna, Li, Yiting, Tobin, Taylor, Brandt, Timothy, Chilcote, Jeffrey, Guyon, Olivier, Groff, Tyler, Lozi, Julien, Vievard, Sebastien, Deo, Vincent, Skaf, Nour, Bouchy, Francois, Boisse, Isabelle, Dykes, Erica, Kasdin, N. J., Tamura, Motohide
We present follow-up SCExAO/CHARIS $H$ and $K$-band (R $\sim$ 70) high-contrast integral field spectroscopy and Keck/NIRC2 photometry of directly-imaged brown dwarf companion HD 33632 Ab and new radial-velocity data for the system from the SOPHIE spe
Externí odkaz:
http://arxiv.org/abs/2407.20322
Autor:
Lozi, Julien, Ahn, Kyohoon, Blue, Hannah, Chun, Alicia, Clergeon, Christophe, Deo, Vincent, Guyon, Olivier, Hattori, Takashi, Minowa, Yosuke, Nishiyama, Shogo, Ono, Yoshito, Oya, Shin, Takagi, Yuhei, Vievard, Sebastien, Vincent, Maria
The facility adaptive optics of the Subaru Telescope AO188 recently received some long-awaited upgrades: a new 3224-actuator deformable mirror (DM) from ALPAO (hence the name change to AO3000 or AO3k), an upgraded GPU-based real-time computer, a visi
Externí odkaz:
http://arxiv.org/abs/2407.19188
Autor:
Spalding, Eckhart, Arcadi, Elizabeth, Douglass, Glen, Gross, Simon, Guyon, Olivier, Martinod, Marc-Antoine, Norris, Barnaby, Rossini-Bryson, Stephanie, Taras, Adam, Tuthill, Peter, Ahn, Kyohoon, Deo, Vincent, Morsy, Mona El, Lozi, Julien, Vievard, Sebastien, Withford, Michael
GLINT is a nulling interferometer downstream of the SCExAO extreme-adaptive-optics system at the Subaru Telescope (Hawaii, USA), and is a pathfinder instrument for high-contrast imaging of circumstellar environments with photonic technologies. GLINT
Externí odkaz:
http://arxiv.org/abs/2407.17741
Autor:
Morsy, Mona El, Lozi, Julien, Guyon, Olivier, Currie, Thayne, Vievard, Sébastien, Bryant, Julia, Tokoku, Chihiro, Deo, Vincent, Ahn, Kyohoon, Crous, Fred, Wang, Adeline Haobing, Sathi, Zinat Mahol
Exo-NINJA will realize nearIR R$\sim$4000 diffraction-limited narrow-field spectro-imaging for characterization of exoplanets and circumstellar disk structures. It uniquely combines mid-R spectroscopy, high throughput, and spatial resolution, in cont
Externí odkaz:
http://arxiv.org/abs/2407.16746
Autor:
Vievard, Sébastien, Lallement, Manon, Leon-Saval, Sergio, Guyon, Olivier, Jovanovic, Nemanja, Huby, Elsa, Lacour, Sylvestre, Lozi, Julien, Deo, Vincent, Ahn, Kyohoon, Lucas, Miles, Currie, Thayne, Sallum, Steph, Fitzgerald, Michael P., Betters, Chris, Norris, Barnaby, Amezcua-Correa, Rodrigo, Yerolatsitis, Stephanos, Lin, Jon, Kim, Yoo-Jung, Gatkine, Pradip, Kotani, Takayuki, Tamura, Motohide, Martin, Guillermo, Goldsmith, Harry-Dean Kenchington, Perrin, Guy
A Photonic Lantern (PL) is a novel device that efficiently converts a multi-mode fiber into several single-mode fibers. When coupled with an extreme adaptive optics (ExAO) system and a spectrograph, PLs enable high throughput spectroscopy at high ang
Externí odkaz:
http://arxiv.org/abs/2407.15412
Gliese 12 b: A temperate Earth-sized planet at 12 pc ideal for atmospheric transmission spectroscopy
Autor:
Kuzuhara, M., Fukui, A., Livingston, J. H., Caballero, J. A., de Leon, J. P., Hirano, T., Kasagi, Y., Murgas, F., Narita, N., Omiya, M., Orell-Miquel, Jaume, Palle, E., Changeat, Q., Esparza-Borges, E., Harakawa, H., Hellier, C., Hori, Yasunori, Ikuta, Kai, Ishikawa, H. T., Kodama, T., Kotani, T., Kudo, T., Morales, J. C., Mori, M., Nagel, E., Parviainen, H., Perdelwitz, V., Reiners, A., Ribas, I., Sanz-Forcada, J., Sato, B., Schweitzer, A., Tabernero, H. M., Takarada, T., Uyama, T., Watanabe, N., Zechmeister, M., García, N. Abreu, Aoki, W., Beichman, C., Béjar, V. J. S., Brandt, T. D., Calatayud-Borras, Y., Carleo, I., Charbonneau, D., Collins, K. A., Currie, T., Doty, J. P., Dreizler, S., Fernández-Rodríguez, G., Fukuda, I., Galán, D., Geraldía-González, S., González-Garcia, J., Hayashi, Y., Hedges, C., Henning, T., Hodapp, K., Ikoma, M., Isogai, K., Jacobson, S., Janson, M., Jenkins, J. M., Kagetani, T., Kambe, E., Kawai, Y., Kawauchi, K., Kokubo, E., Konishi, M., Korth, J., Krishnamurthy, V., Kurokawa, T., Kusakabe, N., Kwon, J., Laza-Ramos, A., Libotte, F., Luque, R., Madrigal-Aguado, A., Matsumoto, Y., Mawet, D., McElwain, M. W., Gallardo, P. P. Meni, Morello, G., Torres, S. Mu~noz, Nishikawa, J., Nugroho, S. K., Ogihara, M., Pel'aez-Torres, A., Rapetti, D., S'anchez-Benavente, M., Schlecker, M., Seager, S., Serabyn, E., Serizawa, T., Stangret, M., Takahashi, A., Teng, H., Tamura, M., Terada, Y., Ueda, A., Usuda, T., Vanderspek, R., Vievard, S., Watanabe, D., Winn, J. N., Osorio, M. R. Zapatero
Publikováno v:
Published on 2024 May 23 by Astrophysical Journal Letters (ApJL) 967 L21
Recent discoveries of Earth-sized planets transiting nearby M dwarfs have made it possible to characterize the atmospheres of terrestrial planets via follow-up spectroscopic observations. However, the number of such planets receiving low insolation i
Externí odkaz:
http://arxiv.org/abs/2405.14708
Autor:
Hori, Y., Fukui, A., Hirano, T., Narita, N., de Leon, J. P., Ishikawa, H. T., Hartman, J. D., Morello, G., García, N. Abreu, Hernández, L. Álvarez, Béjar, V. J. S., Calatayud-Borras, Y., Carleo, I., Enoc, G., Esparza-Borges, E., Fukuda, I., Galán, D., Geraldía-González, S., Hayashi, Y., Ikoma, M., Ikuta, K., Isogai, K., Kagetani, T., Kawai, Y., Kawauchi, K., Kimura, T., Kodama, T., Korth, J., Kusakabe, N., Laza-Ramos, A., Livingston, J. H., Luque, R., Miyakawa, K., Mori, M., Torres, S. Muñoz, Murgas, F., Orell-Miquel, J., Palle, E., Parviainen, H., Peláez-Torres, A., Puig-Subirá, M., Sánchez-Benavente, M., Sosa-Guillén, P., Stangret, M., Terada, Y., Watanabe, N., Bakos, G. Á., Barkaoui, K., Beichman, C., Benkhaldoun, Z., Boyle, A. W., Ciardi, D. R., Clark, C. A., Collins, K. A., Collins, K. I., Conti, D. M., Crossfield, I. J. M., Everett, M. E., Furlan, E., Ghachoui, M., Gillon, M., Gonzales, E. J., Higuera, J., Horne, K., Howell, S. B., Jehin, E., Lester, K. V., Lund, M. B., Matson, R., Matthews, E. C., Pozuelos, F. J., Safonov, B. S., Schlieder, J. E., Schwarz, R. P., Sefako, R., Srdoc, G., Strakhov, I. A., Waalkes, W. C., Ziegler, C., Charbonneau, D., Essack, Z., Timmermans, M., Guerrero, N. M., Harakawa, H., Hedges, C., Ishizuka, M., Jenkins, J. M., Konishi, M., Kotani, T., Kudo, T., Kurokawa, T., Kuzuhara, M., Nishikawa, J., Omiya, M., Ricker, G. R., Seager, S., Serizawa, T., Striegel, S., Tamura, M., Ueda, A., Vanderspek, R., Vievard, S., Winn, J. N.
Sub-Neptunes with $2-3R_\oplus$ are intermediate in size between rocky planets and Neptune-sized planets. The orbital properties and bulk compositions of transiting sub-Neptunes provide clues to the formation and evolution of close-in small planets.
Externí odkaz:
http://arxiv.org/abs/2405.12637
Autor:
Vincent, Maria, Lawson, Kellen, Currie, Thayne, Williams, Jonathan P., Guyon, Olivier, Lozi, Julien, Deo, Vincent, Vievard, Sébastien
We present a multi-wavelength (1.16$\mu$m-2.37$\mu$m) view of the debris disk around BD+45$^\circ$598, using the Subaru Coronagraphic Extreme Adaptive Optics system paired with the Coronagraphic High Angular Resolution Imaging Spectrograph. With an a
Externí odkaz:
http://arxiv.org/abs/2405.04521
Autor:
Hirano, Teruyuki, Gaidos, Eric, Harakawa, Hiroki, Hodapp, Klaus W., Kotani, Takayuki, Kudo, Tomoyuki, Kurokawa, Takashi, Kuzuhara, Masayuki, Mann, Andrew W., Nishikawa, Jun, Omiya, Masashi, Serizawa, Takuma, Tamura, Motohide, Thao, Pa Chia, Ueda, Akitoshi, Vievard, Sebastien
Exoplanets in their infancy are ideal targets to probe the formation and evolution history of planetary systems, including the planet migration and atmospheric evolution and dissipation. In this paper, we present spectroscopic observations and analys
Externí odkaz:
http://arxiv.org/abs/2404.07262
Autor:
Tobin, Taylor L., Currie, Thayne, Li, Yiting, Chilcote, Jeffrey, Brandt, Timothy D., Lacy, Brianna, Kuzuhara, Masayuki, Vincent, Maria, Morsy, Mona El, Deo, Vincent, Williams, Jonathan P., Guyon, Olivier, Lozi, Julien, Vievard, Sebastien, Skaf, Nour, Ahn, Kyohoon, Groff, Tyler, Kasdin, N. Jeremy, Uyama, Taichi, Tamura, Motohide, Gibbs, Aidan, Lewis, Briley L., Bowens-Rubin, Rachel, Salama, Maïssa, An, Qier, Chen, Minghan
Publikováno v:
2024, AJ, 167, 205
We present the direct-imaging discovery of a substellar companion (a massive planet or low-mass brown dwarf) to the young, $\gamma$ Doradus-type variable star, HIP 39017 (HD 65526). The companion's SCExAO/CHARIS JHK ($1.1-2.4\mu$m) spectrum and Keck/
Externí odkaz:
http://arxiv.org/abs/2403.04000