Dr. Edward W. Dunham Profile

Dr. Edward W. Dunham

Instrument Manager at Lowell Observatory

SPIE Involvement:

Author

Publications (44)

Proceedings Article | 6 July 2018 Paper

NIHTS: the near-infrared high throughput spectrograph for the Discovery Channel Telescope

Edward Dunham, Thomas Bida, Tomas Chylek, Frank Cornelius, Annika Gustafsson, Nicholas Moskovitz, Henry Roe

Proceedings Volume 10702, 107023E (2018) https://doi.org/10.1117/12.2313948

KEYWORDS: Sensors, Mirrors, Cameras, Spectrographs, Prisms, Telescopes, Optical benches, Coating, Electronics, Reflection

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Proceedings Article | 6 July 2018 Presentation + Paper

IGRINS at the Discovery Channel Telescope and Gemini South

Gregory Mace, Kimberly Sokal, Jae-Joon Lee, Heeyoung Oh, Chan Park, Hanshin Lee, John Good, Phillip MacQueen, Jae Sok Oh, Kyle Kaplan , Ben Kidder, Moo-Young Chun, In-Soo Yuk , Ueejeong Jeong, Soojong Pak, Kang-Min Kim, Jakyoung Nah, Sungho Lee, Young-Sam Yu, Narae Hwang, Byeong-Gon Park, Hwihyun Kim, Brian Chinn, Alison Peck, Ruben Diaz, Rene Rutten, Lisa Prato, George Jacoby, Frank Cornelius, Ben Hardesty, William DeGroff, Edward Dunham, Stephen Levine, Larissa Nofi, Ricardo Lopez-Valdivia, Alycia Weinberger, Daniel Jaffe

Proceedings Volume 10702, 107020Q (2018) https://doi.org/10.1117/12.2312345

KEYWORDS: Gemini Observatory, Telescopes, Observatories, Space telescopes, Astronomy, K band, Spectrographs, Stars, Electronics, Infrared spectroscopy

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The Immersion GRating INfrared Spectrometer (IGRINS) was designed for high-throughput with the expectation of being a visitor instrument at progressively larger observing facilities. IGRINS achieves R∼45000 and > 20,000 resolution elements spanning the H and K bands (1.45-2.5μm) by employing a silicon immersion grating as the primary disperser and volume-phase holographic gratings as cross-dispersers. After commissioning on the 2.7 meter Harlan J. Smith Telescope at McDonald Observatory, the instrument had more than 350 scheduled nights in the first two years. With a fixed format echellogram and no cryogenic mechanisms, spectra produced by IGRINS at different facilities have nearly identical formats. The first host facility for IGRINS was Lowell Observatory’s 4.3-meter Discovery Channel Telescope (DCT). For the DCT a three-element fore-optic assembly was designed to be mounted in front of the cryostat window and convert the f/6.1 telescope beam to the f/8.8 beam required by the default IGRINS input optics. The larger collecting area and more reliable pointing and tracking of the DCT improved the faint limit of IGRINS, relative to the McDonald 2.7-meter, by ∼1 magnitude. The Gemini South 8.1-meter telescope was the second facility for IGRINS to visit. The focal ratio for Gemini is f/16, which required a swap of the four-element input optics assembly inside the IGRINS cryostat. At Gemini, observers have access to many southern-sky targets and an additional gain of ∼1.5 magnitudes compared to IGRINS at the DCT. Additional adjustments to IGRINS include instrument mounts for each facility, a glycol cooled electronics rack, and software modifications. Here we present instrument modifications, report on the success and challenges of being a visitor instrument, and highlight the science output of the instrument after four years and 699 nights on sky. The successful design and adaptation of IGRINS for various facilities make it a reliable forerunner for GMTNIRS, which we now anticipate commissioning on one of the 6.5 meter Magellan telescopes prior to the completion of the Giant Magellan Telescope.

Proceedings Article | 6 July 2018 Paper

Status and performance of Lowell Observatory's Discovery Channel telescope and its growing suite of instruments

Stephen Levine, William DeGroff, Thomas Bida, Edward Dunham, George Jacoby

Proceedings Volume 10700, 107004P (2018) https://doi.org/10.1117/12.2312380

KEYWORDS: Coating, Mirrors, Telescopes, Spectrographs, Observatories, Reflectivity, Imaging systems, Near infrared spectroscopy

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Proceedings Article | 9 August 2016 Paper

The Transiting Exoplanet Survey Satellite

G. Ricker, R. Vanderspek, J. Winn, S. Seager, Z. Berta-Thompson, A. Levine, J. Villasenor, D. Latham, D. Charbonneau, M. Holman, J. Johnson, D. Sasselov, A. Szentgyorgyi, G. Torres, G. Bakos, T. Brown, J. Christensen-Dalsgaard, H. Kjeldsen, M. Clampin, S. Rinehart, D. Deming, J. Doty, E. Dunham, S. Ida, N. Kawai, B. Sato, J. Jenkins, J. Lissauer, G. Jernigan, L. Kaltenegger, G. Laughlin, D. Lin, P. McCullough, N. Narita, J. Pepper, K. Stassun, S. Udry

Proceedings Volume 9904, 99042B (2016) https://doi.org/10.1117/12.2232071

KEYWORDS: Exoplanets, Stars, Satellites, Planets, Cameras, Space telescopes, James Webb Space Telescope, Space operations, Charge-coupled devices, Observatories

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SPIE Journal Paper | 7 July 2015

First exoplanet transit observation with the Stratospheric Observatory for Infrared Astronomy: confirmation of Rayleigh scattering in HD 189733 b with the High-Speed Imaging Photometer for Occultations

Georgi Mandushev, Edward Dunham, Peter Collins, Daniel Angerhausen, Avi Mandell, Eric Becklin, Ryan Hamilton, Sarah Logsdon, Michael McElwain, Ian McLean, Enrico Pfüller, Maureen Savage, Sachindev Shenoy, William Vacca, Jeffrey Van Cleve, Jürgen Wolf

JATIS, Vol. 1, Issue 03, 034002, (July 2015) https://doi.org/10.1117/12.10.1117/1.JATIS.1.3.034002

KEYWORDS: Exoplanets, Observatories, Photometry, Stars, Data modeling, Infrared astronomy, Rayleigh scattering, Signal to noise ratio, Point spread functions, Planets

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SPIE Journal Paper | 24 October 2014 Open Access

Transiting Exoplanet Survey Satellite

George Ricker, Joshua Winn, Roland Vanderspek, David Latham, Gáspár Bakos, Jacob Bean, Zachory Berta-Thompson, Timothy Brown, Lars Buchhave, Nathaniel Butler, R. Paul Butler, William Chaplin, David Charbonneau, Jørgen Christensen-Dalsgaard, Mark Clampin, Drake Deming, John Doty, Nathan De Lee, Courtney Dressing, Edward Dunham, Michael Endl, François Fressin, Jian Ge, Thomas Henning, Matthew Holman, Andrew Howard, Shigeru Ida, Jon Jenkins, Garrett Jernigan, John Asher Johnson, Lisa Kaltenegger, Nobuyuki Kawai, Hans Kjeldsen, Gregory Laughlin, Alan Levine, Douglas Lin, Jack Lissauer, Phillip MacQueen, Geoffrey Marcy, Peter McCullough, Timothy Morton, Norio Narita, Martin Paegert, Enric Palle, Francesco Pepe, Joshua Pepper, Andreas Quirrenbach, Stephen Rinehart, Dimitar Sasselov, Bun’ei Sato, Sara Seager, Alessandro Sozzetti, Keivan Stassun, Peter Sullivan, Andrew Szentgyorgyi, Guillermo Torres, Stephane Udry, Joel Villasenor

JATIS, Vol. 1, Issue 01, 014003, (October 2014) https://doi.org/10.1117/12.10.1117/1.JATIS.1.1.014003

KEYWORDS: Stars, Planets, Exoplanets, Space operations, Satellites, Cameras, Charge-coupled devices, Space telescopes, James Webb Space Telescope, Observatories

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Proceedings Article | 28 August 2014 Paper

Transiting Exoplanet Survey Satellite (TESS)

George Ricker, Joshua Winn, Roland Vanderspek, David Latham, Gáspár Bakos, Jacob Bean, Zachory Berta-Thompson, Timothy Brown, Lars Buchhave, Nathaniel Butler, R. Paul Butler, William Chaplin, David Charbonneau, Jørgen Christensen-Dalsgaard, Mark Clampin, Drake Deming, John Doty, Nathan De Lee, Courtney Dressing, E. Dunham, Michael Endl, Francois Fressin, Jian Ge, Thomas Henning, Matthew Holman, Andrew Howard, Shigeru Ida, Jon Jenkins, Garrett Jernigan, John Johnson, Lisa Kaltenegger, Nobuyuki Kawai, Hans Kjeldsen, Gregory Laughlin, Alan Levine, Douglas Lin, Jack Lissauer, Phillip MacQueen, Geoffrey Marcy, P. McCullough, Timothy Morton, Norio Narita, Martin Paegert, Enric Palle, Francesco Pepe, Joshua Pepper, Andreas Quirrenbach, S. Rinehart, Dimitar Sasselov, Bun'ei Sato, Sara Seager, Alessandro Sozzetti, Keivan Stassun, Peter Sullivan, Andrew Szentgyorgyi, Guillermo Torres, Stephane Udry, Joel Villasenor

Proceedings Volume 9143, 914320 (2014) https://doi.org/10.1117/12.2063489

KEYWORDS: Stars, Planets, Space operations, Cameras, Charge-coupled devices, Space telescopes, Exoplanets, Observatories, James Webb Space Telescope, Sensors

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Proceedings Article | 31 July 2014 Paper

SOFIA science instruments: commissioning, upgrades and future opportunities

Erin Smith, John Miles, L. Andrew Helton, Ravi Sankrit, B. Andersson, Eric Becklin, James De Buizer, C. Dowell, Edward Dunham, Rolf Güsten, Doyal Harper, Terry Herter, Luke Keller, Randolf Klein, Alfred Krabbe, Sarah Logsdon, Pamela Marcum, Ian McLean, William Reach, Matthew Richter, Thomas Roellig, Göran Sandell, Maureen Savage, Pasquale Temi, William Vacca, John Vaillancourt, Jeffrey Van Cleve, Erick Young

Proceedings Volume 9147, 914706 (2014) https://doi.org/10.1117/12.2056942

KEYWORDS: Spectroscopy, Observatories, Imaging spectroscopy, Infrared spectroscopy, Sensors, Infrared cameras, Spectroscopes, Cameras, Radio astronomy, Astronomy

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Proceedings Article | 22 July 2014 Paper

Status and performance of the Discovery Channel Telescope from commissioning into early science operations

William DeGroff, Stephen Levine, Thomas Bida, Frank Cornelius, Peter Collins, Edward Dunham, Ben Hardesty, Michael Lacasse, Mike Sweaton, Alex Venetiou, Saeid Zoonemat Kermani, Philip Massey, M. Lisa Foley, Heidi Larson, Jason Sanborn, Susan Strosahl, Ron Winner, Teznie Pugh

Proceedings Volume 9145, 91452C (2014) https://doi.org/10.1117/12.2057015

KEYWORDS: Telescopes, Charge-coupled devices, Mirrors, Reflectivity, Stars, Near infrared, Imaging systems, Observatories, Spectrographs, Wavefront sensors

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Proceedings Article | 14 July 2014 Paper

First-generation instrumentation for the Discovery Channel Telescope

Thomas Bida, Edward Dunham, Philip Massey, Henry Roe

Proceedings Volume 9147, 91472N (2014) https://doi.org/10.1117/12.2056872

KEYWORDS: Spectrographs, Charge-coupled devices, Mirrors, Telescopes, Cameras, Imaging systems, Sensors, Silica, Optical fabrication, Stars

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Proceedings Article | 8 July 2014 Paper

HIPO in-flight performance improvements

E. Dunham, T. Bida, P. Collins, Georgi Mandushev, S. Zoonematkermani, J. Van Cleve, D. Angerhausen, Avi Mandell

Proceedings Volume 9147, 91470H (2014) https://doi.org/10.1117/12.2057405

KEYWORDS: Charge-coupled devices, Ozone, Stars, Photometry, Point spread functions, Telescopes, Exoplanets, Mirrors, Beam splitters, Ions

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Proceedings Article | 8 July 2014 Paper

FLITECAM: early commissioning results

Sarah Logsdon, Ian McLean, Eric Becklin, Edward Dunham, Ryan Hamilton, Christopher Johnson, Jennifer Milburn, Maureen Savage, Sachindev Shenoy, Erin Smith, William Vacca

Proceedings Volume 9147, 91472Y (2014) https://doi.org/10.1117/12.2056874

KEYWORDS: Observatories, Sensors, Spectroscopy, Optical filters, Infrared imaging, Stars, Exoplanets, Image filtering, Telescopes, Infrared radiation

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Proceedings Article | 19 September 2013 Paper

Capabilities, performance, and status of the SOFIA science instrument suite

John Miles, L. Andrew Helton, Ravi Sankrit, B. Andersson, E. Becklin, James De Buizer, C. Dowell, Edward Dunham, Rolf Güsten, Doyal Harper, Terry Herter, Luke Keller, Randolf Klein, Alfred Krabbe, Pamela Marcum, Ian McLean, William Reach, Matthew Richter, Thomas Roellig, Göran Sandell, Maureen Savage, Erin Smith, Pasquale Temi, William Vacca, John Vaillancourt, Jeffery Van Cleve, Erick Young, Peter Zell

Proceedings Volume 8867, 88670N (2013) https://doi.org/10.1117/12.2022791

KEYWORDS: Spectroscopy, Telescopes, Observatories, Stars, Sensors, Imaging systems, Astronomy, Photometry, Infrared telescopes, Infrared radiation

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Proceedings Article | 27 September 2012 Paper

Active damping of the SOFIA Telescope assembly

Paul Keas, Edward Dunham, Ulrich Lampater, Enrico Pfüller, Stefan Teufel, Hans-Peter Roeser, Manuel Wiedemann, Jürgen Wolf

Proceedings Volume 8444, 844411 (2012) https://doi.org/10.1117/12.924791

KEYWORDS: Control systems, Telescopes, Actuators, Mirrors, Space telescopes, Shape memory alloys, Observatories, Optical instrument design, Motion models, Finite element methods

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Proceedings Article | 27 September 2012 Paper

SOFIA observatory performance and characterization

Pasquale Temi, Pamela Marcum, Walter Miller, Edward Dunham, Ian McLean, Jurgen Wolf, Eric Becklin, Thomas Bida, Rick Brewster, Sean Casey, Peter Collins, Scott Horner, Holger Jakob, Stephen Jensen, Jana Killebrew, Ulrich Lampater, Georgi Mandushev, Allen Meyer, Enrico Pfueller, Andreas Reinacher, Jeonghee Rho, Thomas Roellig, Maureen Savage, Erin Smith, Stefan Teufel, Manuel Wiedemann

Proceedings Volume 8444, 844414 (2012) https://doi.org/10.1117/12.925736

KEYWORDS: Telescopes, Observatories, Stars, Mirrors, Cameras, Image quality, Calibration, Infrared telescopes, Imaging systems, Pluto

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Proceedings Article | 24 September 2012 Paper

FLITECAM: current status and results from observatory verification flights

Ian McLean, Erin Smith, E. Becklin, E. Dunham, Jennifer Milburn, Maureen Savage

Proceedings Volume 8446, 844619 (2012) https://doi.org/10.1117/12.926821

KEYWORDS: Telescopes, Observatories, Optical filters, Spectroscopy, Sensors, Cameras, Image filtering, Digital signal processing, Control systems, Image quality

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Proceedings Article | 24 September 2012 Paper

HIPO in-flight performance aboard SOFIA

Edward Dunham, Thomas Bida, Peter Collins, Georgi Mandushev, Ian McLean, Michael Person, Erin Smith, Brian Taylor, Saeid Zoonematkermani

Proceedings Volume 8446, 844618 (2012) https://doi.org/10.1117/12.926749

KEYWORDS: Photometry, Telescopes, Mirrors, Stars, Scintillation, Signal to noise ratio, Observatories, Global Positioning System, Pluto, Coating

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Proceedings Article | 24 September 2012 Paper

NIMBUS: the Near-infrared Multi-Band Ultraprecise Spectroimager for SOFIA

Michael McElwain, Avi Mandell, Bruce Woodgate, David Spiegel, Nikku Madhusudhan, Edward Amatucci, Cullen Blake, Jason Budinoff, Adam Burgasser, Adam Burrows, Mark Clampin, Charlie Conroy, L. Drake Deming, Edward Dunham, Roger Foltz, Qian Gong, Heather Knutson, Theodore Muench, Ruth Murray-Clay, Hume Peabody, Bernard Rauscher, Stephen Rinehart, Geronimo Villanueva

Proceedings Volume 8446, 84467B (2012) https://doi.org/10.1117/12.927094

KEYWORDS: Exoplanets, Planets, Sensors, Stars, Mirrors, Atmospheric modeling, Near infrared, Cameras, Spectrographs, Telescopes

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Proceedings Article | 17 September 2012 Paper

Early science results from SOFIA

Erick Young, Terry Herter, Rolf Güsten, Edward Dunham, Eric Becklin, Pamela Marcum, Alfred Krabbe, B.-G. Andersson, William Reach, Hans Zinnecker

Proceedings Volume 8444, 844410 (2012) https://doi.org/10.1117/12.926845

KEYWORDS: Telescopes, Observatories, Astronomy, Stars, Space telescopes, Carbon monoxide, Pluto, Mirrors, Astronomical telescopes, Cameras

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Proceedings Article | 17 September 2012 Paper

Status and performance of the Discovery Channel Telescope during commissioning

Stephen Levine, Thomas Bida, Tomas Chylek, Peter Collins, William DeGroff, Edward Dunham, Paul Lotz, Alexander Venetiou, Saeid Zoonemat Kermani

Proceedings Volume 8444, 844419 (2012) https://doi.org/10.1117/12.926415

KEYWORDS: Mirrors, Telescopes, Adaptive optics, Image quality, Control systems, Space telescopes, Data modeling, Observatories, Wavefront sensors, Active optics

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Proceedings Article | 17 September 2012 Paper

Design, development, and testing of the DCT Cassegrain instrument support assembly

Thomas Bida, Edward Dunham, Ralph Nye, Tomas Chylek, Richard Oliver

Proceedings Volume 8444, 844451 (2012) https://doi.org/10.1117/12.926320

KEYWORDS: Wavefront sensors, Telescopes, Cameras, Stars, Assembly equipment, Mirrors, CCD cameras, Wavefronts, Monochromatic aberrations, Optical filters

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Proceedings Article | 6 August 2010 Paper

Kepler instrument performance: an in-flight update

Douglas Caldwell, Jeffrey Van Cleve, Jon Jenkins, Vic Argabright, Jeffery Kolodziejczak, Edward Dunham, John Geary, Peter Tenenbaum, Hema Chandrasekaran, Jie Li, Hayley Wu, Jason Von Wilpert

Proceedings Volume 7731, 773117 (2010) https://doi.org/10.1117/12.856638

KEYWORDS: Charge-coupled devices, Stars, Light scattering, Video, Light, Photometry, Quantum efficiency, Sensors, Scattering, Clocks

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Proceedings Article | 21 July 2010 Paper

SOFIA image motion compensation

Edward Dunham, Peter Collins, Andreas Reinacher, Ulrich Lampater

Proceedings Volume 7735, 77355X (2010) https://doi.org/10.1117/12.857731

KEYWORDS: Mirrors, Digital signal processing, Charge-coupled devices, Shape memory alloys, Spherical lenses, Stars, Control systems, Prototyping, Beam splitters, Pellicles

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Proceedings Article | 2 September 2009 Paper

On sky testing of the SOFIA telescope in preparation for the first science observations

Franziska Harms, Jürgen Wolf, Patrick Waddell, Edward Dunham, Andreas Reinacher, Ulrich Lampater, Holger Jakob, Lisa Bjarke, Sybil Adams, Randy Grashuis, Allan Meyer, Kenneth Bower, Keith Schweikhard, Thomas Keilig

Proceedings Volume 7453, 745303 (2009) https://doi.org/10.1117/12.828609

KEYWORDS: Telescopes, Mirrors, Space telescopes, Coating, Sensors, Cameras, Gyroscopes, Control systems, Stars, Calibration

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Proceedings Article | 11 July 2008 Paper

HIPO data products

E. Dunham, J. Elliot, T. Bida, P. Collins, B. Taylor, S. Zoonematkermani

Proceedings Volume 7014, 70144Z (2008) https://doi.org/10.1117/12.788040

KEYWORDS: Charge-coupled devices, Digital signal processing, Telescopes, Camera shutters, Image storage, Clocks, Mirrors, Stars, Wavefront sensors, Global Positioning System

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Proceedings Article | 29 June 2006 Paper

Simplifying the prime focus corrector of the Discovery Channel Telescope

M. MacFarlane, E. Dunham

Proceedings Volume 6269, 626929 (2006) https://doi.org/10.1117/12.671863

KEYWORDS: Telescopes, Glasses, Ultraviolet radiation, Aspheric lenses, Image quality, Observatories, Optical design, Refractive index, Ultraviolet telescopes, Mirrors

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Proceedings Article | 27 June 2006 Paper

Discovery Channel Telescope: progress and status

B. Smith, T. Bida, R. Millis, E. Dunham, O. Wiecha, H. Marshall

Proceedings Volume 6267, 626705 (2006) https://doi.org/10.1117/12.672500

KEYWORDS: Telescopes, Mirrors, Space telescopes, Buildings, Optical instrument design, Cameras, Control systems, Observatories, Imaging spectroscopy, Aerospace engineering

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Proceedings Article | 12 October 2004 Paper

Overview and status of the Kepler Mission

David Koch, William Borucki, Edward Dunham, John Geary, Ronald Gilliland, Jon Jenkins, David Latham, Eric Bachtell, Dan Berry, William Deininger, Riley Duren, Thomas Gautier, Ladd Gillis, David Mayer, Chris Miller, Dan Shafer, Charles Sobeck, Chris Stewart, Michael Weiss

Proceedings Volume 5487, (2004) https://doi.org/10.1117/12.552346

KEYWORDS: Stars, Planets, Space operations, Photometry, Charge-coupled devices, Data centers, System on a chip, Aerospace engineering, Space telescopes, Signal to noise ratio

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Proceedings Article | 30 September 2004 Paper

A prime focus camera for the Discovery Channel Telescope

Edward Dunham, Thomas Sebring

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.552230

KEYWORDS: Charge-coupled devices, Telescopes, Cameras, Wavefront sensors, CCD cameras, Camera shutters, Control systems, Staring arrays, Clocks, Interfaces

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Proceedings Article | 30 September 2004 Paper

HIPO: a high-speed imaging photometer for occultations

Edward Dunham, James Elliot, Thomas Bida, Brian Taylor

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.552152

KEYWORDS: Charge-coupled devices, Telescopes, Photometry, Sensors, Image quality, Electronics, Beam splitters, Camera shutters, Stars, Control systems

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Proceedings Article | 28 September 2004 Paper

Site testing for the Discovery Channel Telescope

Thomas Bida, Edward Dunham, Leonard Bright, Charles Corson

Proceedings Volume 5489, (2004) https://doi.org/10.1117/12.552277

KEYWORDS: Telescopes, Sensors, Image quality, Cameras, Observatories, Imaging systems, Astronomy, Motion measurement, Turbulence, Wind measurement

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Proceedings Article | 28 September 2004 Paper

Optical design of the Discovery Channel Telescope

Malcolm MacFarlane, Edward Dunham

Proceedings Volume 5489, (2004) https://doi.org/10.1117/12.550633

KEYWORDS: Telescopes, Mirrors, Aspheric lenses, Monochromatic aberrations, Optical spheres, Reflection, Optical design, Glasses, Chemical elements, Observatories

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Proceedings Article | 28 September 2004 Paper

The Discovery Channel Telescope: a wide-field telescope in Northern Arizona

Thomas Sebring, Edward Dunham, Robert Millis

Proceedings Volume 5489, (2004) https://doi.org/10.1117/12.551720

KEYWORDS: Telescopes, Space telescopes, Mirrors, Observatories, Image quality, Cameras, Astronomical telescopes, Wavefront sensors, Astronomy, Optical instrument design

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Proceedings Article | 15 September 2004 Paper

Performance of the Lowell Observatory instrumentation system

Brian Taylor, Edward Dunham, James Elliot

Proceedings Volume 5496, (2004) https://doi.org/10.1117/12.552511

KEYWORDS: Telescopes, Observatories, Control systems, Human-machine interfaces, Charge-coupled devices, Cameras, Interfaces, Imaging systems, Sensors, Image processing

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Proceedings Article | 3 March 2003 Paper

The optical design of HIPO: a high-speed imaging photometer for occultations

Edward Dunham

Proceedings Volume 4857, (2003) https://doi.org/10.1117/12.458819

KEYWORDS: Telescopes, Cameras, Beam splitters, Mirrors, Collimators, Wavefront sensors, Point spread functions, Image quality, Silica, Plano

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Proceedings Article | 24 February 2003 Paper

The Kepler mission's focal plane

Edward Dunham, John Geary, Robert Philbrick, Christopher Stewart, David Koch

Proceedings Volume 4854, (2003) https://doi.org/10.1117/12.460265

KEYWORDS: Charge-coupled devices, Staring arrays, Sensors, Stars, Photometry, CCD image sensors, Electronics, Planets, Space operations, Point spread functions

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Proceedings Article | 24 February 2003 Paper

The Kepler mission: a wide-field-of-view photometer designed to determine the frequency of Earth-size planets around solar-like stars

William Borucki, David Koch, Jack Lissauer, Gibor Basri, John Caldwell, William Cochran, Edward Dunham, John Geary, David Latham, Ronald Gilliland, Douglas Caldwell, Jon Jenkins, Yoji Kondo

Proceedings Volume 4854, (2003) https://doi.org/10.1117/12.460266

KEYWORDS: Planets, Stars, Photometry, Signal to noise ratio, Point spread functions, Planetary systems, Space operations, Data archive systems, Space telescopes, Sun

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Proceedings Article | 30 January 2003 Paper

Prime focus corrector for the Lowell 4-m telescope

Daniel Blanco, Gordon Pentland, Craig Smith, Ted Dunham, Robert Millis

Proceedings Volume 4842, (2003) https://doi.org/10.1117/12.458091

KEYWORDS: Tolerancing, Telescopes, Glasses, Aspheric lenses, Mirrors, Optical design, Assembly tolerances, Wavefront sensors, Wavefronts, Computer generated holography

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Proceedings Article | 28 July 2000 Paper

CCD photometry tests for a mission to detect Earth-sized planets in the extended solar neighborhood

David Koch, William Borucki, Edward Dunham, Jon Jenkins, Larry Webster, Fred Witteborn

Proceedings Volume 4013, (2000) https://doi.org/10.1117/12.394034

KEYWORDS: Stars, Charge-coupled devices, Planets, Photometry, Point spread functions, Space operations, Signal to noise ratio, Interference (communication), Cameras, Received signal strength

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Proceedings Article | 28 July 2000 Paper

Processing CCD images to detect transits of Earth-sized planets: maximizing sensitivity while achieving reasonable downlink requirements

Jon Jenkins, Fred Witteborn, David Koch, Edward Dunham, William Borucki, Todd Updike, Mark Skinner, Steven Jordan

Proceedings Volume 4013, (2000) https://doi.org/10.1117/12.394035

KEYWORDS: Stars, Photometry, Signal to noise ratio, Space operations, Charge-coupled devices, Point spread functions, Numerical simulations, Planets, Image processing, Control systems

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Proceedings Article | 20 June 2000 Paper

HOPI: a high-speed occultation photometer and imager for SOFIA

Edward Dunham, James Elliot, Brian Taylor

Proceedings Volume 4014, (2000) https://doi.org/10.1117/12.389135

KEYWORDS: Telescopes, Stars, Charge-coupled devices, Cameras, Photometry, Sensors, Electronics, Observatories, Space telescopes, Collimators

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Proceedings Article | 20 June 2000 Paper

Image stability requirement for the SOFIA telescope

Edwin Erickson, Edward Dunham

Proceedings Volume 4014, (2000) https://doi.org/10.1117/12.389101

KEYWORDS: Telescopes, Image quality, Diffraction, Point spread functions, Observatories, Interference (communication), Super resolution, Space telescopes, Wind energy, Spatial resolution

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Proceedings Article | 16 June 2000 Paper

Lowell Observatory instrumentation system (LOIS): a modular control system for astronomical instrumentation

Brian Taylor, Edward Dunham, Adam Gould, David Osip, James Elliot

Proceedings Volume 4009, (2000) https://doi.org/10.1117/12.388418

KEYWORDS: Charge-coupled devices, Telescopes, Control systems, Observatories, Human-machine interfaces, Cameras, Sensors, Image analysis, Imaging systems, Image display

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Proceedings Article | 28 August 1998 Paper

Kepler: a space mission to detect earth-class exoplanets

David Koch, William Borucki, Larry Webster, Edward Dunham, Jon Jenkins, John Marriott, Harold Reitsema

Proceedings Volume 3356, (1998) https://doi.org/10.1117/12.324482

KEYWORDS: Planets, Stars, Photometry, Space operations, Charge-coupled devices, Exoplanets, Analog electronics, Sun, Signal to noise ratio, Planetary systems

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Showing 5 of 44 publications

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