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31 to 40 of 2,222 Results
Prediction and Evaluation of the Image of the WFIRST Coronagraph Pupil at the Shaped Pupil Mask
Dec 14, 2020
Marx, David S; Kern, Brian; Krist, John; Cady, Eric; Seo, Byoung-Joon; Balasubramanian, Bala; Riggs, A. J. Eldorado; Tang, Hong; Prada, Camilo; Patterson, Keith; Ruane, Garreth; Shi, Fang; Noecker, Charley; Crowther, Blake, 2020, "Prediction and Evaluation of the Image of the WFIRST Coronagraph Pupil at the Shaped Pupil Mask", https://hdl.handle.net/2014/53348, VIRTUAL SPIE Astronomical Telescopes + Instrumentation 2020, San Diego, California, December 14-18, 2020, JPL Open Repository
No abstract provided
Roman Space Telescope Coronagraph Engineering Design and Operating Concept
Dec 14, 2020
Poberezhskiya, Ilya; Luchika, Thomas; Zhao, Feng; Frerkinga, Margaret; Baileya, Vanessa; Basingera, Scott; Cady, Eric; Colavitaa, Mark; Creagera, Brandon; Fathpoura, Nanaz; Goulliouda, Renaud; Groff, Tyler; Morrissey, Patrick; Kempenaara, Joshua; Kerna, Brian; Krist, John; Moka, Fai; Mulierea, David; Nematic, Bijan; Riggsa, A.J.; Seoa, Byoung-Joon; Shia, Fang; Shreckengosta, Belinda; Steevesa, John; Tanga, Hong, 2020, "Roman Space Telescope Coronagraph Engineering Design and Operating Concept", https://hdl.handle.net/2014/53310, SPIE Astronomical Telescopes + Instrumentation 2020, San Diego, California, December 14-18, 2020, JPL Open Repository
NASA’s Nancy Grace Roman Space Telescope (formerly known as WFIRST) is a flagship astrophysics mission planned for launch in 2025. The coronagraph instrument (CGI) on Roman will demonstrate the technology for direct imaging and spectroscopy of exoplanets around nearby stars. It w...
Broadband Characterization of Anti-reflection Coated Starshade Optical Edges for Solar Glint Control
Dec 14, 2020
McKeithen, Dylan; Shaklan, Stuart; Martin, Stefan; Lowe, Eric; Sheikh, David, 2020, "Broadband Characterization of Anti-reflection Coated Starshade Optical Edges for Solar Glint Control", https://hdl.handle.net/2014/53304, SPIE Astronomical Telescopes + Instrumentation 2020, San Diego, California, December 14-18, 2020, JPL Open Repository
A starshade is a large flower-shaped screen designed to enable the direct imaging of exoplanets with a space telescope. The starshade perimeter is composed of sharp, precisely shaped edges to minimize the glint of sunlight into the telescope. Past work has focused on bare edges t...
The Potential for a K-Band Receiver on the Large Millimeter Telescope
Dec 14, 2020
Kurtza, Stanley E.; Stander, Tinus; de Villiers, Dirk I. L.; Cerfonteyn, William; de Witt, Aletha; Ferrusca Rodrıquez, Daniel; Hiriart, David; Hughes, David H.; Jacobs, Christopher; Loinard, Laurent; van den Heever, Fanie; Velazquez de la Rosa Becerra, Miguel, 2020, "The Potential for a K-Band Receiver on the Large Millimeter Telescope", https://hdl.handle.net/2014/53303, SPIE Astronomical Telescopes + Instrumentation 2020, San Diego, California, December 14-18, 2020, JPL Open Repository
The 50-meter Large Millimeter Telescope (LMT) operating on the Sierra Negra in Mexico is the largest single- dish millimeter-wave telescope in the world. Although designed to work in the 3 mm and 1 mm bands, there is significant potential for LMT observations at centimeter wavele...
Data Processing for High-Contrast Imaging with the James Webb Space Telescope
Dec 14, 2020
Ygouf, Marie; Rocha, Graca; Beichman, Charles; Greenbaum, Alexandra; Leisenring, Jarron; De Furio, Matthew; Meyerd, Michael; Girard, Julien; Pueyoe, Laurent A.; Perrin, Marshall; Uyama, Taichi; Greena, Joseph J.; Jewell, Jeffrey B., 2020, "Data Processing for High-Contrast Imaging with the James Webb Space Telescope", https://hdl.handle.net/2014/53309, SPIE Astronomical Telescopes + Instrumentation 2020, San Diego, California, December 14-18, 2020, JPL Open Repository
The James Webb Space Telescope (JWST) will probe circumstellar environments at an unprecedented sensitivity.However, the performance of high-contrast imaging instruments is limited by the residual light from the star at close separations (<2-3”), where the incidence of exoplanets...
Status of NASA’s stellar astrometry testbeds for exoplanet detection: Science and technology overview
Dec 14, 2020
Bendek, Eduardo; Noyes, Matt; Flores, Catalina; Sirbu, Dan; Belikov, Ruslan; Guyon, Olivier; Tuthill, Peter, 2020, "Status of NASA’s stellar astrometry testbeds for exoplanet detection: Science and technology overview", https://hdl.handle.net/2014/53326, VIRTUAL SPIE Astronomical Telescopes + Instrumentation 2020, San Diego, California, December 14-18, 2020, JPL Open Repository
No abstract provided
SPHEREx: NASA’s Near-Infrared Spectrophotmetric All-Sky Survey
Dec 14, 2020
Crill, Brendan; Werner, Michael; Akeson, Rachel; Ashby, Matthew; Bleem, Lindsey; Bock, James J.; Bryan, Sean; Chang, Tzu-Ching; Cooray, Asantha; Dore, Olivier; Dowell, C. Darren; Dubois-Felsmann, Gregory; Eifler, Tim; Habib, Salman; Heinrich, Chen; Heitmann, Katrin; Hemmati, Shoubaneh; Heaton, Grigory; Hirata, Christopher; Hui, Howard; Jeong, Woong-Seob; Kang, Jae Hwan; Kirkpatrick, J. Davy; Korngute, Phillip M.; Krauseh, Elisabeth; Lissek, Carey; Mauskopff, Philip; Mastersb, Daniel; Melnick, Gary; Nguyen, Hien; Nayyeri, Hooshang; Oberg, Karin; Padin, Steve; Paladini, Roberta; Pourrahmani, Milad; Pyo, Jyeonghyung; Smith, Roger; Song, Yong-Seon; Symons, Teresa; Teplitz, Harry; Tolls, Volker; Unwin, Stephen; Windhorstf, Rogier; Yanj, Yujin; Zemcov, Michael, 2020, "SPHEREx: NASA’s Near-Infrared Spectrophotmetric All-Sky Survey", https://hdl.handle.net/2014/53288, VIRTUAL SPIE Astronomical Telescopes + Instrumentation 2020, San Diego, California, December 14-18, 2020, JPL Open Repository
SPHEREx, the Spectro-Photometer for the History of the Universe, Epoch of Reionization, and ices Explorer, isa NASA MIDEX mission planned for launch in 2024. SPHEREx will carry out the first all-sky spectral survey at wavelengths between 0.75μm and 5μm with spectral resolving pow...
ATSA- A Cold, Active Telescope for Space Astronomy
Dec 14, 2020
Martin, Stefan; Lawrence, Charles; Redding, David; Rodgers, Michael; Hurd, Kevin; Jewell, Jeffrey; Morgan, Rhonda; Phillips, Charles; Pineda, Claudia; Mennesson, Bertrand; Steeves, John, 2020, "ATSA- A Cold, Active Telescope for Space Astronomy", https://hdl.handle.net/2014/53298, SPIE Astronomical Telescopes + Instrumentation 2020, San Diego, California, December 14-18, 2020, JPL Open Repository
The National Academies’ Decadal Survey telescope studies have produced mission design concepts that plotpathways into the future to follow on from Hubble, Spitzer, JWST and NGRST. Considering the results of theLUVOIR and HabEx studies in particular, it is clear that segmented mir...
Design and Performance of the PALM-3000 3.5 kHz Upgrade
Dec 14, 2020
Meeker, Seth R.; Truonga, Tuan N.; Roberts, Jennifer E.; Shelton, J. Chris; Fregoso, S. Felipe; Burruss, Rick S.; Dekany, Richard G.; Wallace, J. Kent; Baker, John W.; Heffner, Carolyn M.; Mawet, Dimitri; Rykoski, Kevin M.; Tesch, Jonathan A.; Vasisht, Gautam, 2020, "Design and Performance of the PALM-3000 3.5 kHz Upgrade", https://hdl.handle.net/2014/53317, SPIE Astronomical Telescopes + Instrumentation 2020, San Diego, California, December 14-18, 2020, JPL Open Repository
PALM-3000 (P3K), the second-generation adaptive optics (AO) instrument for the 5.1 meter Hale telescope atPalomar Observatory, was released as a facility class instrument in October 2011 and has since been used on-skyfor over 600 nights as a workhorse science instrument and testb...
ROMAN CGI Testbed WFSC Modeling and Validation
Dec 14, 2020
Zhou, Hanying; Krist, John; Seo, Byoung-Joon; Kern, Brian; Cady, Eric; Poberezhskiy, Ilya, 2020, "ROMAN CGI Testbed WFSC Modeling and Validation", https://hdl.handle.net/2014/53286, VIRTUAL SPIE Astronomical Telescopes + Instrumentation 2020, San Diego, California, December 14-18, 2020, JPL Open Repository
Optical diffraction and wavefront sensing and control (WFSC) models validated against the high-fidelity Roman Space Telescope Coronagraph Instrument (CGI) testbed play a key role in mask design selection and the verification of many requirements that cannot be accomplished until...
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