Zobrazeno 1 - 10
of 214
pro vyhledávání: '"King, David L."'
Autor:
Crass, Jonathan, Bechter, Andrew, Sands, Brian, King, David L., Ketterer, Ryan, Engstrom, Matthew, Hamper, Randall, Kopon, Derek, Smous, James, Crepp, Justin R., Montoya, Manny, Durney, Oli, Cavalieri, David, Reynolds, Robert, Vansickle, Michael, Onuma, Eleanya, Thomes, Joseph, Mullin, Scott, Shelton, Chris, Wallace, Kent, Bechter, Eric, Vaz, Amali, Power, Jennifer, Rahmer, Gustavo, Ertel, Steve
Enabling efficient injection of light into single-mode fibers (SMFs) is a key requirement in realizing diffraction-limited astronomical spectroscopy on ground-based telescopes. SMF-fed spectrographs, facilitated by the use of adaptive optics (AO), of
Externí odkaz:
http://arxiv.org/abs/2010.13795
Autor:
Velasco, Sergio, Colodro-Conde, Carlos, López, Roberto L., Oscoz, Alejandro, Valdivia, Juan J. F., Rebolo, Rafael, Femenía, Bruno, King, David L., Labadie, Lucas, Mackay, Craig, Muthusubramanian, Balaji, Pérez-Garrido, Antonio, Puga, Marta, Rodríguez-Coira, Gustavo, Rodríguez-Ramos, Luis F., Rodríguez-Ramos, José M.
Publikováno v:
Highlights on Spanish Astrophysics IX, Proceedings of the XII Scientific Meeting of the Spanish Astronomical Society, 2017 , p. 696-700
The Adaptive Optics Lucky Imager (AOLI) is a new instrument designed to combine adaptive optics (AO) and lucky imaging (LI) techniques to deliver high spatial resolution in the visible, 20 mas, from ground-based telescopes. Here we present details of
Externí odkaz:
http://arxiv.org/abs/1703.09354
Autor:
Crass, Jonathan, Fantano, Louis G., Hearty, Frederick R., Crepp, Justin R., Nelson, Matthew J., Wall, Sheila M., Cavalieri, David A., Koca, Corina, King, David L., Reynolds, Robert O., Stapelfeldt, Karl R.
Publikováno v:
Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 990873 (9 August 2016)
The current generation of precision radial velocity (RV) spectrographs are seeing-limited instruments. In order to achieve high spectral resolution on 8m class telescopes, these spectrographs require large optics and in turn, large instrument volumes
Externí odkaz:
http://arxiv.org/abs/1609.04411
Autor:
Mackay, Craig, Rebolo, Rafael, Crass, Jonathan, King, David L., Labadie, Lucas, González-Escélera, Víctor, Puga, Marta, Pérez-Garrido, Antonio, López, Roberto, Oscoz, Alejandro, Pérez-Prieto, Jorge A., Rodríguez-Ramos, Luis F., Velasco, Sergio, Villó, Isidro
Lucky Imaging combined with a low order adaptive optics system has given the highest resolution images ever taken in the visible or near infrared of faint astronomical objects. This paper describes a new instrument that has already been deployed on t
Externí odkaz:
http://arxiv.org/abs/1408.0117
Autor:
Mackay, Craig, Rebolo-López, Rafael, Castellá, Bruno Femenia, Crass, Jonathan, King, David L., Labadie, Lucas, Aisher, Peter, Garrido, Antonio Pérez, Balcells, Marc, Díaz-Sánchez, Anastasio, Fuensalida, Jesús Jimenez, Lopez, Roberto L., Oscoz, Alejandro, Prieto, Jorge A. Pérez, Rodríguez-Ramos, Luis F., Villó, Isidro
The highest resolution images ever taken in the visible were obtained by combining Lucky Imaging and low order adaptive optics. This paper describes a new instrument to be deployed on the WHT 4.2m and GTC 10.4 m telescopes on La Palma, with particula
Externí odkaz:
http://arxiv.org/abs/1207.4065
Autor:
Crass, Jonathan, Aisher, Peter, Femenia, Bruno, King, David L., Mackay, Craig D., Rebolo-López, Rafael, Labadie, Lucas, Garrido, Antonio Pérez, Balcells, Marc, Sánchez, Anastasio Díaz, Fuensalida, Jesús Jimenez, Lopez, Roberto L., Oscoz, Alejandro, Prieto, Jorge A. Pérez, Rodríguez-Ramos, Luis F., Villó, Isidro
Publikováno v:
Proc. SPIE 8447(2012), Adaptive Optics Systems III
The Adaptive Optics Lucky Imager (AOLI) is a new instrument under development to demonstrate near diffraction limited imaging in the visible on large ground-based telescopes. We present the adaptive optics system being designed for the instrument com
Externí odkaz:
http://arxiv.org/abs/1207.0991
Autor:
Hinkley, Sasha, Monnier, John D., Oppenheimer, Ben R., Roberts Jr., Lewis C, Ireland, Michael, Zimmerman, Neil, Brenner, Douglas, Parry, Ian R., Martinache, Frantz, Lai, Olivier, Soummer, Remi, Sivaramakrishnan, Anand, Beichman, Charles, Hillenbrand, Lynne, Zhao, Ming, Lloyd, James P., Bernat, David, Vasisht, Gautam, Crepp, Justin R., Pueyo, Laurent, Shao, Michael, Perrin, Marshall D., King, David L., Bouchez, Antonin, Roberts, Jennifer E., Dekany, Richard, Burruss, Rick
The nearby star Alpha Oph (Ras Alhague) is a rapidly rotating A5IV star spinning at ~89% of its breakup velocity. This system has been imaged extensively by interferometric techniques, giving a precise geometric model of the star's oblateness and the
Externí odkaz:
http://arxiv.org/abs/1010.4028
Autor:
Hinkley, Sasha, Oppenheimer, Ben R., Brenner, Douglas, Zimmerman, Neil, Roberts Jr., Lewis C, Parry, Ian R., Soummer, Remi, Sivaramakrishnan, Anand, Simon, Michal, Perrin, Marshall D., King, David L., Lloyd, James P., Bouchez, Antonin, Roberts, Jennifer E., Dekany, Richard, Beichman, Charles, Hillenbrand, Lynne, Burruss, Rick, Shao, Michael, Vasisht, Gautam
Through the combination of high-order Adaptive Optics and coronagraphy, we report the discovery of a faint stellar companion to the A3V star zeta Virginis. This companion is ~7 magnitudes fainter than its host star in the H-band, and infrared imaging
Externí odkaz:
http://arxiv.org/abs/1002.1074
Autor:
Zimmerman, Neil, Oppenheimer, Ben R., Hinkley, Sasha, Brenner, Douglas, Parry, Ian R., Sivaramakrishnan, Anand, Hillenbrand, Lynne, Beichman, Charles, Crepp, Justin R., Vasisht, Gautam, Roberts Jr., Lewis C., Burruss, Rick, King, David L., Soummer, Rémi, Dekany, Richard, Shao, Michael, Bouchez, Antonin, Roberts, Jennifer E., Hunt, Stephanie
Publikováno v:
Astrophys.J.709:733-740,2010
The A5V star Alcor has an M3-M4 dwarf companion, as evidenced by a novel astrometric technique. Imaging spectroscopy combined with adaptive optics coronagraphy allowed for the detection and spectrophotometric characterization of the point source at a
Externí odkaz:
http://arxiv.org/abs/0912.1597
Publikováno v:
Astrophys.J. 486 (1997) 665
We report new observations of ZnII and CrII absorption lines in 10 damped \lya systems (DLAs), mostly at redshift $z_{abs} \simgt 2.5$ . By combining these results with those from our earlier survey (Pettini et al. 1994) and other recent data, we con
Externí odkaz:
http://arxiv.org/abs/astro-ph/9704102