Dr. Arjun Dey Profile

Dr. Arjun Dey

at NSFs National Optical-Infrared Astronomy Research Lab

SPIE Involvement:

Author

Publications (16)

Proceedings Article | 29 August 2022 Presentation + Paper

Presentation + Paper

The DESI instrument

K. Honscheid, K. Fanning, S. Bailey, R. Besuner, A. Dey, C. Dobson, A. Elliott, P. Fagrelius, J. Guy, J. Jimenez, S. Kent, D. Kirkby, M. Landriau, M. Levi, R. Marshall, P. Martini, A. Meisner, C. Poppett, D. Rabinowitz, E.rd Schafly, M. Schubnell, J. Silber, D. Sprayberry

Proceedings Volume 12184, 121840X (2022) https://doi.org/10.1117/12.2629736

KEYWORDS: Spectrographs, Cameras, Telescopes, Near infrared, Camera shutters, Charge-coupled devices, Robots, Stars, Galactic astronomy, Spectroscopes

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Proceedings Article | 13 December 2020 Poster + Presentation + Paper

Poster + Presentation + Paper

Performance of Kitt Peak’s Mayall 4-meter telescope during DESI commissioning

Aaron Meisner, Behzad Abareshi, Arjun Dey, Connie Rockosi, Richard Joyce, David Sprayberry, Robert Besuner, Klaus Honscheid, David Kirkby, Hui Kong, Martin Landriau, Michael Levi, Ting Li, Bob Marshall, Paul Martini, Ashley Ross, David Brooks, Peter Doel, Yutong Duan, Enrique Gaztañaga, Christophe Magneville, Francisco Prada, Michael Schubnell, Gregory Tarlѐ

Proceedings Volume 11447, 1144794 (2020) https://doi.org/10.1117/12.2574776

KEYWORDS: Telescopes, Image quality, Spectroscopes, Observatories, Cameras, Point spread functions

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Proceedings Article | 10 July 2018 Presentation

Presentation

DESI installation: preparations and progress (Conference Presentation)

Lori Allen, D. Sprayberry, M. Evatt, R. Marshall, B. Abareshi, T. Lavoie, R. Joyce, R. Probst, A. Dey, R. Blum, R. Besuner, P. Jelinsky, J. Silber, T. Claybaugh, C. Poppett, P. Doel, D. Brooks, G. Gutierrez, B. Flaugher, G. Gallo, D. Friend, R. Sharples, D. Bramall, K. Honscheid, P. Martini, M. Derwent, T. O'Brien

Proceedings Volume 10700, 107000T (2018) https://doi.org/10.1117/12.2312159

KEYWORDS: Telescopes, Spectroscopes, Baryon acoustic oscillations, Galactic astronomy, Fiber optics tests, Fiber optics, Spectrographs

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Proceedings Article | 9 August 2016 Paper

Paper

ProtoDESI: risk reduction experiment for the Dark Energy Spectroscopic Instrument

Parker Fagrelius, Charles Baltay, Christopher Bebek, Robert Besuner, Francisco Castander, Arjun Dey, Elizabeth Buckley-Geer, Ann Elliott, William Emmet, Brenna Flaugher, Irena Gershkovich, Klaus Honscheid, Dick Joyce, Stephen Kent, Robert Marshall, Ronald Probst, David Rabinowitz, Kevin Reil, David Schlegel, Michael Schubnell, Santiago Serrano, Joseph Silber, David Sprayberry, Greg Tarle

Proceedings Volume 9908, 99087X (2016) https://doi.org/10.1117/12.2231760

KEYWORDS: Galactic astronomy, Telescopes, Control systems, Spectroscopes, Cameras, Stars, Robotics, Light emitting diodes, Photometry, Astronomy

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The Dark Energy Spectroscopic Instrument (DESI) is under construction to measure the expansion history of the Universe using the Baryon Acoustic Oscillation technique. The spectra of 40 million galaxies over 14,000 sq. deg. will be measured during the life of the experiment. A new prime focus corrector for the KPNO Mayall telescope will deliver light to 5000 fiber optic positioners. The fibers in turn feed ten broad-band spectrographs. We describe the ProtoDESI experiment, planned for installation and commissioning at the Mayall telescope in the fall of 2016, which will test the fiber positioning system for DESI. The ProtoDESI focal plate, consisting of 10 fiber positioners, illuminated fiducials, and a guide, focus and alignment (GFA) sensor module, will be installed behind the existing Mosaic prime focus corrector. A Fiber View Camera (FVC) will be mounted to the lower surface of the primary mirror cell and a subset of the Instrument Control System (ICS) will control the ProtoDESI subsystems, communicate with the Telescope Control System (TCS), and collect instrument monitoring data. Short optical fibers from the positioners will be routed to the back of the focal plane where they will be imaged by the Fiber Photometry Camera (FPC) or back-illuminated by a LED system. Target objects will be identified relative to guide stars, and using the GFA in a control loop with the ICS/TCS system, the guide stars will remain stable on pre-identified GFA pixels. The fiber positioners will then be commanded to the target locations and placed on the targets iteratively, using the FVC to centroid on back-illuminated fibers and fiducials to make corrective delta motions. When the positioners are aligned with the targets on-sky, the FPC will measure the intensities from the positioners’ fibers which can then be dithered to look for intensity changes, indicating how well the fibers were initially positioned on target centers. The final goal is to operate ProtoDESI on the Mayall telescope for a 6-hour period during one night, successfully placing targets on the intended fibers for the duration of a typical DESI science exposure.

Proceedings Article | 9 August 2016 Paper

Paper

Mosaic3: a red-sensitive upgrade for the prime focus camera at the Mayall 4m telescope

Arjun Dey, David Rabinowitz, Armin Karcher, Chris Bebek, Charles Baltay, David Sprayberry, Frank Valdes, Bob Stupak, John Donaldson, Will Emmet, Tom Hurteau, Behzad Abareshi, Bob Marshall, Dustin Lang, Mike Fitzpatrick, Phil Daly, Dick Joyce, David Schlegel, Heidi Schweiker, Lori Allen, Bob Blum, Michael Levi

Proceedings Volume 9908, 99082C (2016) https://doi.org/10.1117/12.2231488

KEYWORDS: Charge-coupled devices, Galactic astronomy, Telescopes, Cameras, Charge-coupled devices, Spectroscopes, Observatories, CCD cameras, Astronomy, Imaging systems, Image quality

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Proceedings Article | 26 July 2016 Paper

Paper

A new telescope control software for the Mayall 4-meter telescope

Behzad Abareshi, Robert Marshall, Shelby Gott, David Sprayberry, Rolando Cantarutti, Dick Joyce, Doug Williams, Ronald Probst, Kristin Reetz, Anthony Paat, Karen Butler, Christian Soto, Arjun Dey, David Summers

Proceedings Volume 9913, 99131O (2016) https://doi.org/10.1117/12.2233087

KEYWORDS: Telescopes, Control systems, Observatories, Servomechanisms, Computer simulations, Device simulation, Domes, Telescopes, Control systems, Stars, Radium, Astronomical telescopes

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Proceedings Article | 22 July 2014 Paper

Paper

Planning the installation of the dark energy spectroscopic instrument on the Mayall Telescope

D. Sprayberry, W. Goble, L. Allen, J. Elias, R. Probst, R. Joyce, A. Dey, R. Marshall, M. Evatt, R. Blum, T. M. Abbott, A. Walker, F. Muñoz , R. Besuner, M. Sholl, P. Jelinsky, J. Silber, R. Lafever, C. Bebek, B. Flaugher

Proceedings Volume 9145, 91453Y (2014) https://doi.org/10.1117/12.2055625

KEYWORDS: Telescopes, Space telescopes, Spectrographs, Mirrors, Safety, Spectroscopes, Domes, Computing systems, Observatories, Galactic astronomy

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Proceedings Article | 5 October 2012 Paper

Paper

Mapping the universe with BigBOSS

Nick Mostek, Kyle Barbary, Christopher Bebek, Arjun Dey, Jerry Edelstein, Patrick Jelinsky, Alex Kim, Michael Lampton, Michael Levi, Patrick McDonald, Claire Poppett, Natalie Roe, David Schlegel, Michael Sholl

Proceedings Volume 8446, 84460Q (2012) https://doi.org/10.1117/12.924915

KEYWORDS: Galactic astronomy, Baryon acoustic oscillations, Spectrographs, Monte Carlo methods, Distance measurement, Spectroscopy, Device simulation, Error analysis, Photons, Data modeling

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Proceedings Article | 24 September 2012 Paper

Paper

Integrating BigBOSS with the Mayall Telescope

Robert Besuner, Chris Bebek, Arjun Dey, Will Goble, Dick Joyce, Michael Levi, Kevin Reil, David Schlegel, Michael Sholl

Proceedings Volume 8446, 844652 (2012) https://doi.org/10.1117/12.925497

KEYWORDS: Telescopes, Mirrors, Spectrographs, Space telescopes, Cameras, Fourier transforms, Optical fibers, Baryon acoustic oscillations, Sensors, Astronomical imaging

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Proceedings Article | 24 September 2012 Paper

Paper

BigBOSS: a stage IV dark energy redshift survey

Michael Sholl, Mark Ackerman, Chris Bebek, Robert Besuner, Arjun Dey, Jerry Edelstein, Patrick Jelinsky, Michael Lampton, Michael Levi, Ming Liang, Paul Perry, Natalie Roe, Joseph Silber, David Schlegel

Proceedings Volume 8446, 844667 (2012) https://doi.org/10.1117/12.926179

KEYWORDS: Actuators, Spectroscopy, Cameras, Galactic astronomy, Telescopes, Sensors, Astronomical imaging, Mirrors, Collimators, Astronomy

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Proceedings Article | 22 September 2011 Paper

Paper

BigBOSS: enabling widefield cosmology on the Mayall Telescope

Michael Sholl, Chris Bebek, Robert Besuner, Arjun Dey, Jerry Edelstein, Patrick Jelinsky, Michael Lampton, Michael Levi, Ming Liang, Paul Perry, Natalie Roe, David Schlegel

Proceedings Volume 8127, 81270D (2011) https://doi.org/10.1117/12.894381

KEYWORDS: Telescopes, Galactic astronomy, Prisms, Spectrometers, Silica, Actuators, Astronomical imaging, Lenses, Interfaces, Baryon acoustic oscillations

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Proceedings Article | 11 October 2004 Paper

Paper

X-ray three-dimensional survey in the NDWFS Bootes field: large area chandra shallow x-ray survey-I

Stephen Murray, William Forman, Christine Jones, Almus Kenter, Paul Green, Daniel Fabricant, Giovanni Fazio, Buell Jannuzi, Arjun Dey, Joan Najita, Michael Brown, Katherine Brand, Joseph Shields, Brian McNamara, Marcia Rieke, Christopher Kochanek

Proceedings Volume 5488, (2004) https://doi.org/10.1117/12.551618

KEYWORDS: X-rays, X-ray sources, X-ray optics, Spectroscopy, X-ray astronomy, Error analysis, Point spread functions, Astronomy, Observatories, Radio optics

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Proceedings Article | 30 September 2004 Paper

Paper

KAOS: kilo-aperture optical spectrograph

Samuel Barden, Arjun Dey, Brian Boyle, Karl Glazebrook

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.550287

KEYWORDS: Spectrographs, Telescopes, Gemini Observatory, Space telescopes, Astronomical imaging, Sensors, Galactic astronomy, Collimators, Optical components, Solids

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Proceedings Article | 13 February 2003 Paper

Paper

Bright lights, big city: massive galaxies, giant Ly-alpha nebulae, and protoclusters

Willem van Breugel, Michiel Reuland, Willem de Vries, Adam Stanford, Arjun Dey, Jaron Kurk, Bram Venemans, Huub Roettgering, George Miley, Carlos De Breuck, Mike Dopita, Ralph Sutherland, Jonathan Bland-Hawthorn

Proceedings Volume 4834, (2003) https://doi.org/10.1117/12.456509

KEYWORDS: Galactic astronomy, Telescopes, Galaxy groups and clusters, Spectroscopy, Stars, Image filtering, Tunable filters, Spectrographs, Kinematics, Optical filters

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Proceedings Article | 2 August 2000 Paper

Paper

Optical design for a 1-deg. FOV 30-m telescope

Samuel Barden, Charles Harmer, Charles Claver, Arjun Dey

Proceedings Volume 4004, (2000) https://doi.org/10.1117/12.393944

KEYWORDS: Mirrors, Telescopes, Image quality, Optical design, Spectroscopy, Imaging spectroscopy, Aspheric lenses, Spectrographs, Adaptive optics, Large telescopes

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Proceedings Article | 29 June 2000 Paper

Paper

Wide-field science drivers for future telescopes and instrumentation

George Jacoby, Joan Najita, Arjun Dey, Samuel Barden, Charles Harmer

Proceedings Volume 4005, (2000) https://doi.org/10.1117/12.390152

KEYWORDS: Galactic astronomy, Telescopes, Spectrographs, Stars, Space telescopes, Kinematics, Spectroscopy, Astronomy, Imaging systems, Optical instrument design

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Showing 5 of 16 publications

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