Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Claire E. Cramer"'
Autor:
John T. Woodward, Christopher W. Stubbs, Gerald T. Fraser, Keith R. Lykke, A. Vaz, Claire E. Cramer
Publikováno v:
SPIE Proceedings.
Improving the precision of ground-based astronomical observations is an objective of both current (e.g. PanSTARRS1) and future (e.g. Dark Energy Survey and the Large Synoptic Survey Telescope) sky surveys. An important element of this effort is to de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f356519605e4099e5fa2fd1c6334b9ce
https://doi.org/10.1117/12.2188453
https://doi.org/10.1117/12.2188453
Publikováno v:
Journal of Low Temperature Physics. 113:479-484
We report preliminary results from a study of the effect of electrons on cav-itation in liquid 3 He. We have measured the negative pressure at which electron bubbles explode. The results are in good agreement with theoretical expectations.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f223cd11767fa4ccf6456038dba5e3ea
https://doi.org/10.1023/a:1022508429970
https://doi.org/10.1023/a:1022508429970
Publikováno v:
SPIE Proceedings.
We describe a new apparatus for measuring the spectral irradiance of the Moon at visible wavelengths. Our effort builds upon the United States Geological Survey’s highly successful Robotic Lunar Observatory (ROLO), which determined a precise model
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5240d10f36918088bd0ab08ffbe02a84
https://doi.org/10.1117/12.2027204
https://doi.org/10.1117/12.2027204
Autor:
Claire E. Cramer
Publikováno v:
J Res Natl Inst Stand Technol
Tracking climate variables at the levels of precision and accuracy required to detect global change requires satellite sensors to make highly consistent measurements that can be compared to measurements made at different times and with different inst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c54d261e17abfd2b65178c11e675a4d5
https://doi.org/10.6028/jres.121.016
https://doi.org/10.6028/jres.121.016
Autor:
Keith R. Lykke, Claire E. Cramer, Peter C. Zimmer, D. C. Zirzow, John T. McGraw, John T. Woodward
Publikováno v:
SPIE Proceedings.
Changing atmospheric transmission accounts for the largest systematic errors limiting photometric measurement precision and accuracy for ground-based telescopes. While considerable resources have been devoted to correcting the effects of the atmosphe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76c838dea5a639fa20f5ece636af01ba
https://doi.org/10.1117/12.926609
https://doi.org/10.1117/12.926609
Autor:
Susana E. Deustua, Dean C. Hines, Peter C. Zimmer, John T. McGraw, Keith R. Lykke, John T. Woodward, Claire E. Cramer, D. C. Zirzow
Publikováno v:
SPIE Proceedings.
NIST-calibrated detectors will be used by the ground-based 100mm diameter Astronomical Extinction Spectrophotometer (AESoP) to calibrate the spectral energy distributions of bright stars to sub-1% per 1nm spectral resolution element accuracy. AESoP w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c022849c6f91cb9369e6dfeeb80f9ed7
https://doi.org/10.1117/12.927296
https://doi.org/10.1117/12.927296
Autor:
Joel R. Brownstein, Christopher W. Stubbs, Andrew Szentgyorgyi, Adam S. Bolton, David J. Schlegel, Peter Doherty, Steven W. Brown, Keith R. Lykke, John T. Woodward, Stephen Bailey, A. Vaz, Claire E. Cramer
Publikováno v:
SPIE Proceedings.
Improving the precision of observational astronomy requires not only new telescopes and instrumentation, but also advances in observing protocols, calibrations and data analysis. The Laser Applications Group at the National Institute of Standards and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56f5653b63fa875f2dcad1c695cda488
https://doi.org/10.1117/12.925198
https://doi.org/10.1117/12.925198
Autor:
Scott J. Wolk, Katherine de Kleer, Andreas Zezas, Matthew J. Holman, Ben Ripman, Thayne Currie, Malcolm Hicken, Nelson Caldwell, George H Marion, Perry Berlind, Gáspár Á. Bakos, Peter Challis, Wayne Peters, Ted Groner, S. Tang, Robert P. Kirshner, Gautham Narayan, Manuel A. P. Torres, Brigitta Sipocz, D. W. Latham, Joel D. Hartman, Andrew S. Friedman, Andrew Szentgyorgyi, Emilio E. Falco, David M. Kipping, G. Perumpilly, J. M. Fernandez, Warren R. Brown, András Pál, Armin Rest, A. Vaz, R. Hutchins, Mark E. Everett, Claire E. Cramer, Gil Esquerdo, Mike Calkins, W. Michael Wood-Vasey, Michael A. Pahre, Sonia Keys
We present multi-band optical photometry of 94 spectroscopically-confirmed Type Ia supernovae (SN Ia) in the redshift range 0.0055 to 0.073, obtained between 2006 and 2011. There are a total of 5522 light curve points. We show that our natural system
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba0cafef9c2e3d06f2bafc9f83e1ae65
https://resolver.caltech.edu/CaltechAUTHORS:20190424-141803208
https://resolver.caltech.edu/CaltechAUTHORS:20190424-141803208
Autor:
Keith R. Lykke, John T. Woodward, Christopher W. Stubbs, Emilio E. Falco, Peter Doherty, Steven W. Brown, Claire E. Cramer, Allan W. Smith
Publikováno v:
SPIE Proceedings.
It is standard practice at many telescopes to take a series of flat field images prior to an observation run. Typically the flat field consists of a screen mounted inside the telescope dome that is uniformly illuminated with a broadband light source.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d159cda3943fd2a9fe9fc08ec429a0f5
https://doi.org/10.1117/12.857474
https://doi.org/10.1117/12.857474
Autor:
Christopher W. Stubbs, Gautham Narayan, Peter Doherty, John L. Tonry, Yorke J. Brown, Claire E. Cramer, John T. Woodward, Keith R. Lykke
We have used a precision calibrated photodiode as the fundamental metrology reference in order to determine the relative throughput of the PanSTARRS telescope and the Gigapixel imager, from 400 nm to 1050 nm. Our technique uses a tunable laser as a s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c909f919d7fecc00d9be35a65467c4f6