Acknowledgments
The technical and operational information contained in this handbook is the summary of the experience gained by members of the STScI COS Team and by the COS IDT at the University of Colorado in Boulder.
Current and former members of the STScI COS Team include Alessandra Aloisi, Tom Ake, John Bacinski, George Becker, Azalee Bostroem, Dzhuliya Dashtamirova, John Debes, Gisella de Rosa, Rossy Diaz, Serge Dieterich, Van Dixon, Tom Donaldson, Linda Dressel, Justin Ely, Travis Fischer, Will Fischer, Mees Fix, Andrew Fox, Elaine Frazer, Scott Friedman, Parviz Ghavamian, Paul Goudfrooij, George Hartig, Alec Hirschauer, Svea Hernandez, Phil Hodge, Stephen Holland, Nick Indriolo, Bethan James, Robert Jedrzejewski, Christian Johnson, Mary Beth Kaiser, Nat Kerman, Tony Keyes, Jerry Kriss, Nimisha Kumari, Claus Leitherer, Kevin Lindsay, Sean Lockwood, Chris Long, Matt McMaster, Melissa McGrath, Camellia Magness, Derck Massa, Lauren Miller, Sami Niemi, Cristina Oliveira (lead), Rachel Osten, Steven Penton, Rachel Plesha, Charles Proffitt, Marc Rafelski, Julia Roman-Duval, Kate Rowlands, David Sahnow, Hugues Sana, Ravi Sankrit, Ken Sembach, Brittany Shaw, Ed Smith, David Soderblom, Paule Sonnentrucker, Joanna Taylor, Katya Verner, Nolan Walborn, Alan Welty, Tom Wheeler, James White, Mike Wolfe, Brian York, and Wei Zheng. All of these individuals contributed to this volume, as did Russ Makidon.
The COS IDT includes James Green (Principal Investigator), Cynthia Froning (Project Scientist), Steven Penton, Steven Osterman (Instrument Scientist), Stéphane Béland, Eric Burgh, Charles Danforth, Kevin France, and Brian Keeney, all of whom provided information and assistance. COS co-investigators are Dennis Ebbets (Ball Aerospace), Sara R. Heap (GSFC), Claus Leitherer (STScI), Jeffrey Linsky (University of Colorado), Blair D. Savage (University of Wisconsin-Madison), Ken Sembach (STScI), J. Michael Shull (University of Colorado), Oswald Siegmund (University of California, Berkeley), Theodore P. Snow (University of Colorado), John Spencer and Alan Stern (Southwest Research Institute), and John T. Stocke (University of Colorado). K. Brownsberger, J. Morse, and E. Wilkinson have also been part of the COS IDT and have made significant contributions.
The prime contractor for COS is Ball Aerospace, Boulder, Colorado. The XDL detector was built at UC Berkeley by O. Siegmund, J. McPhate, J. Vallerga, and B. Welsh.
The Editor thanks Susan Rose (Senior Technical Editor) for her contributions to the production of this handbook.
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COS Instrument Handbook
- Acknowledgments
- Chapter 1: An Introduction to COS
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Chapter 2: Special Considerations for Cycle 29
- • 2.1 COS FUV Detector Lifetime Positions
- • 2.2 Visit Length
- • 2.3 Central Wavelength Settings Added in Cycle 26
- • 2.4 The G285M Grating is Available but Unsupported
- • 2.5 COS Observations Below 1150 Angstroms: Resolution and Wavelength Calibration Issues
- • 2.6 Time-Dependent Sensitivity Changes
- • 2.7 Spectroscopic Use of the Bright Object Aperture
- • 2.8 Non-Optimal Observing Scenarios
- • 2.9 NUV Spectroscopic Acquisitions
- • 2.10 SNAP, TOO, and Unpredictable Source Programs with COS
- • 2.11 Choosing between COS and STIS
- Chapter 3: Description and Performance of the COS Optics
- Chapter 4: Description and Performance of the COS Detectors
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Chapter 5: Spectroscopy with COS
- • 5.1 The Capabilities of COS
- • 5.2 TIME-TAG vs. ACCUM Mode
- • 5.3 Valid Exposure Times
- • 5.4 Estimating the BUFFER-TIME in TIME-TAG Mode
- • 5.5 Spanning the Gap with Multiple CENWAVE Settings
- • 5.6 FUV Single-Segment Observations
- • 5.7 Internal Wavelength Calibration Exposures
- • 5.8 Fixed-Pattern Noise
- • 5.9 COS Spectroscopy of Extended Sources
- • 5.10 Wavelength Settings and Ranges
- Chapter 6: Imaging with COS
- Chapter 7: Exposure-Time Calculator - ETC
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Chapter 8: Target Acquisitions
- • 8.1 Introduction
- • 8.2 Target Acquisition Overview
- • 8.3 ACQ SEARCH Acquisition Mode
- • 8.4 ACQ IMAGE Acquisition Mode
- • 8.5 ACQ PEAKXD Acquisition Mode
- • 8.6 ACQ PEAKD Acquisition Mode
- • 8.7 Exposure Times
- • 8.8 Centering Accuracy and Data Quality
- • 8.9 Recommended Parameters for all COS TA Modes
- • 8.10 Special Cases
- Chapter 9: Scheduling Observations
- Chapter 10: Bright-Object Protection
- Chapter 11: Data Products and Data Reduction
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Chapter 12: The COS Calibration Program
- • 12.1 Introduction
- • 12.2 Ground Testing and Calibration
- • 12.3 SMOV4 Testing and Calibration
- • 12.4 COS Monitoring Programs
- • 12.5 Cycle 17 Calibration Program
- • 12.6 Cycle 18 Calibration Program
- • 12.7 Cycle 19 Calibration Program
- • 12.8 Cycle 20 Calibration Program
- • 12.9 Cycle 21 Calibration Program
- • 12.10 Cycle 22 Calibration Program
- • 12.11 Cycle 23 Calibration Program
- • 12.12 Cycle 24 Calibration Program
- • 12.13 Cycle 25 Calibration Program
- • 12.14 Cycle 26 Calibration Program
- • 12.15 Cycle 27 Calibration Program
- • 12.16 Cycle 28 Calibration Program
- Chapter 13: Spectroscopic Reference Material
- • Glossary