The following are SPIE papers documenting various aspects of the HET, with first-authors listed for each, organized thematically (updated 15 Jul 2020) * Primary Mirror (M1): * Segment control system: * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/990602.pdf Upgrade of segment control system (Marco Hauser) 27 Jul 2016] * Segment Alignment and Maintenance System (SAMS): * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/176.pdf SAMS development (John Booth) 20 Jul 2000] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/102.pdf Edge sensor deflections (Michael Stallcup) 5 Nov 2001] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/239.pdf LabVIEW software for SAMS (Drew Hall) 13 Dec 2002] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/69.pdf Segment alignment maintenance system (John Rakoczy) 4 Feb 2002] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/693.pdf HET Segment Alignment Maintenance System (Mark Adams) 4 Feb 2003] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/702.pdf Mirror figure maintenance with SAMS (John Rakoczy) 4 Feb 2003] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/659.pdf Segment Alignment Maintenance System (Povilas Palunas) 15 Sep 2004] * Mirror Alignment Recovery System (MARS): * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/714.pdf MARS development (Marsha Wolf) 4 Feb 2003] * Global Radius-Of-Curvature (GROC): * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/681.pdf GROC estimation and control (John Rakoczy) 4 Feb 2003] * Wide Field Upgrade * Design/tests: * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/77333Z.pdf Wind loading analysis on WFU (Brian South) 6 Aug 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/773342.pdf Kinematic analysis of WFU (Gregory Wedeking) 6 Aug 2010] * Hexapods: * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/77331H.pdf WFU hexapod leg development (Joseph Zierer) 5 Aug 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/77332S.pdf Alternative control for hexapods (Jason Mock) 5 Aug 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/84444O.pdf Hexapods for HETDEX (Joseph Zierer) 27 Sep 2012] * Optics: * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/77331J.pdf WFU corrector development (James Burge) 5 Aug 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/914509.pdf Wide Field Upgrade optical designs (Chang Jin Oh) 22 Jul 2014] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/91454C.pdf WFU coating hardware (John Good) 22 Jul 2014] * Alignment and wavefront sensors: * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/77390U.pdf WFU: metrology for alignment control (Hanshin Lee) 19 Jul 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/77381K.pdf Phase retrieval and wavefront sensing (Hanshin Lee) 5 Aug 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/77381L.pdf Wave-front sensors (Hanshin Lee) 5 Aug 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/77380I.pdf WFU: wavefront sensors and alignment (Hanshin Lee) 5 Aug 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/84444S.pdf WFU: metrology systems (Hanshin Lee) 27 Sep 2012] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/107002B.pdf HET metrology performance (Hanshin Lee) 6 Jul 2018] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/107064P.pdf Wavefront sensing and alignment (Hanshin Lee) 10 Jul 2018] * Tracker design/deployment: * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/77393C.pdf Lab tests of new tracker (John Good) 23 Jul 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/773823.pdf HET tracker upgrade design (Nicholas Mollison) 4 Aug 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/773341.pdf WFU tracker bridge design (Michael Worthington) 6 Aug 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/773344.pdf WFU force/safety system (Nicholas Mollison) 7 Aug 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/84443X.pdf HET WFU drive system (Ian Soukup) 17 Sep 2012] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/84445J.pdf WFU tracker design/implementation (Joseph Beno) 17 Sep 2012] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/84491K.pdf WFU tracker design (Richard Hayes) 25 Sep 2012] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/914546.pdf Lab tests of new tracker (John Good) 22 Jul 2014] * Prime Focus Instrument Package (PFIP): * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/77403H.pdf HET PFIP control system (Chuck Ramiller) 19 Jul 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/844672.pdf HET PFIP design/tests (Brian Vattiat) 24 Sep 2012] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/91474J.pdf PFIP design/deployment (Brian Vattiat) 24 Jul 2014] * Facility Calibration Unit: * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/1162.pdf Spectral Calibration System (Joseph Tufts) 7 Mar 2003] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/84444J.pdf WFU: Facility Calibration Unit (Hanshin Lee) 17 Sep 2012] * Software: * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/627012.pdf Observatory Control GUI (James Fowler) 30 Jun 2006] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/773346.pdf Tracker controls and architecture (Jason Mock) 7 Aug 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/991346.pdf HET control system framework (Jason Ramsey) 8 Aug 2016] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/1070736.pdf Simulation control software (Jason Ramsey) 6 Jul 2018] * Status: * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/288.pdf WFU upgrade/status (John Booth) 28 Sep 2004] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/62673W.pdf WFU status (John Booth) 23 Jun 2006] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/70120B.pdf HET WFU and VIRUS status (Richard Savage) 10 Jul 2008] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/773343.pdf HET WFU status (Richard Savage) 7 Aug 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/84440K.pdf HET WFU status (Gary Hill) 27 Sep 2012] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/914506.pdf Deployment of HET WFU (Gary Hill) 22 Jul 2014] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/990606.pdf Deployment of HET WFU (Gary Hill) 27 Jul 2016] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/990646.pdf WFU installation and verification (Hanshin Lee) 8 Aug 2016] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/107003Y.pdf Mechanical performance of the WFU (John Good) 6 Jul 2018] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/107000P.pdf WFU completion (Gary Hill) 6 Jul 2018] * Queue operations: * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/1.1893326.pdf Science observations with the HET (Lawrence Ramsey) 28 March 2005] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/Shetrone_2007_PASP_119_556.pdf Ten Year Review of Queue Scheduling of the HET (Matthew Shetrone) 29 May 2007] * Image Quality: * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/267.pdf HET dome thermal conditioning (Paul Worthington) 25 Jul 2000] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/225.pdf Intrinsic Site Seeing at HET (Edwin Barker) 4 Feb 2003] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/237.pdf HET ventilation system upgrade (John Good) 4 Feb 2003] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/256.pdf DIMM platform (John Good) 28 Sep 2004] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/62673V.pdf Imaging performance (Povilas Palunas) 23 Jun 2006] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/845055.pdf Wavefront sensing for Image Quality (Hanshin Lee) 13 Sep 2012] * Instruments: * General Updates: * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/50.pdf HET instrumentation (Gary Hill) 16 Aug 2000] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/43.pdf HET instrumentation (Gary Hill) 7 Mar 2003] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/94.pdf HET Instrumentation (Gary Hill) 30 Sep 2004] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/626907.pdf HET instrumentation (Gary Hill) 27 Jun 2006] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/701406.pdf HET Instrumentation (Gary Hill) 9 Jul 2008] * High-resolution spectrograph (HRS): * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/387.pdf HET high-resolution spectrograph (Robert Tull) 9 Jul 1998] * Medium-resolution spectrograph (MRS): * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/20.pdf MRS (Lawrence Ramsey) 14 Jun 1995] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/399.pdf HET medium-resolution spectrograph (Scott Horner) 9 Jul 1998] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/1036.pdf HET medium resolution spectrograph (Lawrence Ramsey) 7 Mar 2003] * Low-resolution specotgraph (LRS): * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/424.pdf LRS optical design (Francisco Cobos Duenas) 9 Jul 1998] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/433.pdf LRS mechanical design (Gary Hill) 9 Jul 1998] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/375.pdf LRS (Gary Hill) 9 Jul 1998] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/216.pdf Multi-object spectroscopy (Marsha Wolf) 16 Aug 2000] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/736.pdf LRS J-band camera (Joseph Tufts) 16 Aug 2000] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/1.pdf VPH grism (Gary Hill) 30 Jan 2003] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/667.pdf LRS-J camera (Joseph Tufts) 7 Mar 2003] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/1407.pdf LRS-J camera design (Carlos Tejada) 7 Mar 2003] * Low-resolution specotgraph mark 2 (LRS2): * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/77357H.pdf LRS2 update (Hanshin Lee) 21 Jul 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/84462T.pdf Design/construction of LRS2-B (Taylor Chonis) 24 Sep 2012] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/91470A.pdf LRS2 design (Taylor Chonis) 8 Jul 2014] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/99083O.pdf LRS2 IFU design/performance (Brian Vattiat) 9 Aug 2016] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/99084C.pdf LRS2 design and commissioning (Taylor Chonis) 9 Aug 2016] * Habitable-zone Planet Finder (HPF): * Design/concept: * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/773571.pdf HPF testbed (Lawrence Ramsey) 20 Jul 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/77356X.pdf HPF proposal (Suvrath Mahadevan) 21 Jul 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/91476B.pdf Noise mitigation in HPF fiber feed (Arpita Roy) 24 Jul 2014] * Production/deployment: * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/844687.pdf HPF detection simulations (Ryan Terrien) 6 Feb 2013] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/914752.pdf HPF environmental control system (Fred Hearty) 24 July 2014] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/91477Z.pdf HPF calibration system (Samuel Halverson) 28 Jul 2014] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/991338.pdf HPF control software (Chad Bender) 8 Aug 2016] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/990871.pdf Temperature/pressure control for HPF (Gudmundur Stefansson) 9 Aug 2016] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/107026Q.pdf HPF fiber feed (Shubham Kanodia) 1 Aug 2018] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/107092U.pdf HPF flux image generation (Joe Ninan) 2 Aug 2018] * Laser Frequency Comb (LFC): * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/84501I.pdf LFC for HPF (Steve Osterman) 13 Sep 2012] * Updates/status: * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/84461S.pdf HPF update (Suvrath Mahadevan) 24 Sep 2012] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/91471G.pdf HPF status update (Suvrath Mahadevan) 24 Jul 2014] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/Kanodia_2021_ApJ_912_15.pdf HPF far-field scrambling analysis (Shubham Kanodia) 30 Apr 2021] * Visible Integral-Field Replicable Unit Spectrographs (VIRUS): * Design/concept: * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/251.pdf VIRUS concept (Gary Hill) 30 Sep 2004] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/62692J.pdf VIRUS spectrographs (Gary Hill) 30 Jun 2006] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/701470.pdf VIRUS prototype (Gary Hill) 9 Jul 2008] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/70147L.pdf VIRUS fiber optic support (John Good) 9 Jul 2008] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/70182T.pdf VIRUS prototype optical fiber (Jeremy Murphy) 23 Jul 2008] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/84465F.pdf VIRUS fiber degradation from motion (Jeremy Murphy) 24 Sep 2012] * Production/deployment: * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/77353X.pdf VIRUS optical tolerance (Hanshin Lee) 20 Jul 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/77354W.pdf VIRUS fiber support and life test (Ian Soukup) 20 Jul 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/77354J.pdf VIRUS production-line assembly (Jennifer Marshall) 20 Jul 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/773574.pdf VIRUS alignment/assembly (Amanda Collins) 21 Jul 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/773575.pdf VIRUS mechanical production (Brian Vattiat) 21 Jul 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/773347.pdf VIRUS integration (J Heisler) 7 Aug 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/84500V.pdf VIRUS optical alignment with wavefront sensing (Hanshin Lee) 13 Sep 2012] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/84465H.pdf VPH evaluation for VIRUS (Taylor Chonis) 24 Sep 2012] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/844651.pdf VIRUS assembly/alignment (Travis Prochaska) 24 Sep 2012] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/84465S.pdf VIRUS production initial results (Sarah Tuttle) 24 Sep 2012] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/91473S.pdf VIRUS collimators (Jennifer Marshall) 8 Jul 2014] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/914775.pdf VIRUS assembly/testing (Andreas Kelz) 10 Jul 2014] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/91470Q.pdf VIRUS production (Gary Hill) 10 Jul 2014] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/91470R.pdf VIRUS construction/alignment/installation (Sarah Tuttle) 14 Jul 2014] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/91476U.pdf VIRUS enclosures (Travis Prochaska) 6 Aug 2014] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/91511J.pdf VPH production for VIRUS (Taylor Chonis) 7 Aug 2014] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/91513O.pdf Wavefront sensors and VIRUS alignments (Hanshin Lee) 19 Aug 2014] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/99081H.pdf VIRUS first deployment (Gary Hill) 9 Aug 2016] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/99081I.pdf VIRUS early installation/commissioning (Sarah Tuttle) 9 Aug 2016] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/990880.pdf VIRUS characterization (Briana Indahl) 9 Aug 2016] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/107061K.pdf CCD field lens alignment in VIRUS (Hanshin Lee) 10 Jul 2018] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/107028A.pdf VIRUS IFU deployment (Brian Vattiat) 10 Jul 2018] * Cryogenic system: * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/70184M.pdf VIRUS croygenic system (Michael Smith) 23 Jul 2008] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/773576.pdf VIRUS cryogenic system (Taylor Chonis) 21 Jul 2010] * Data reduction: * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/627021.pdf VIRUS data reduction pipeline (Claus Goessl) 30 Jun 2006] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/845125.pdf HETDEX data reduction (Jan Snigula) 24 Sep 2012] * Updates/status: * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/77350L.pdf VIRUS update (Gary Hill) 15 Jul 2010] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/84460N.pdf VIRUS update (Gary Hill) 24 Sep 2012] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/99081I.pdf VIRUS early commissioning (Sarah Tuttle) 4 Aug 2016] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/107066R.pdf VIRUS deployment/upkeep (Renny Spencer) 10 Jul 2018] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/107021K.pdf VIRUS status and performance (Gary Hill) 6 Jul 2018] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/1070281.pdf VIRUS on-sky performance (Briana Indahl) 10 Jul 2018] * Ancient history: * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/344.pdf HET mirror fabrication (David Pileri) 8 Sep 1995] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/32.pdf HET progress report (Thomas Sebring) 21 Mar 1997] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/298.pdf Tracker development (John Booth) 26 May 1998] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/50.pdf HET commissioning experience and plans (John Glaspey) 3 Jul 1998] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/143.pdf Observing script execution (Niall Gaffney) 3 Jul 1998] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/436.pdf HET 11-m segmented mirror (Victor Krabbendam) 25 Aug 1998] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/34.pdf HET early performance and status (Lawrence Ramsey) 25 Aug 1998] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/2.pdf HET 4-mirror spherical corrector (Robert Jungquist) 5 Oct 1999] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/240.pdf Early science from HET (Gary Hill) 29 Jun 2000] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/16.pdf HET operational model (Mark Adams) 25 Jul 2000] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/127.pdf HET night operations diagnostics (Craig Nance) 25 Jul 2000] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/14.pdf Reflections on HET commissioning (Thomas Barnes) 2 Aug 2000] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/471.pdf HET mirror performance (Mark Adams) 2 Aug 2000] * [https://www.het.astronomy.utexas.edu/HET/hetweb/docs/919.pdf HET completion (John Booth) 4 Feb 2003]