Figure 7 from The Hobby–Eberly Telescope Dark Energy Experiment (HETDEX) Survey Design, Reductions, and Detections

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The Hobby–Eberly Telescope Dark Energy Experiment (HETDEX) Survey Design, Reductions, and Detections

Authors: Karl Gebhardt, Erin Mentuch Cooper, Robin Ciardullo, Viviana Acquaviva, Ralf Bender, William P. Bowman, Barbara G. Castanheira, Gavin Dalton, Dustin Davis, Roelof S. de Jong, D. L. DePoy, Yaswant Devarakonda, Sun Dongsheng, Niv Drory, Maximilian Fabricius, Daniel J. Farrow, John Feldmeier, Steven L. Finkelstein, Cynthia S. Froning, Eric Gawiser, Caryl Gronwall, Laura Herold, Gary J. Hill, Ulrich Hopp, Lindsay R. House, Steven Janowiecki, Matthew Jarvis, Donghui Jeong, Shardha Jogee, Ryota Kakuma, Andreas Kelz, W. Kollatschny, Eiichiro Komatsu, Mirko Krumpe, Martin Landriau, Chenxu Liu, Maja Lujan Niemeyer, Phillip MacQueen, Jennifer Marshall, Ken Mawatari, Emily M. McLinden, Shiro Mukae, Gautam Nagaraj, Yoshiaki Ono, Masami Ouchi, Casey Papovich, Nao Sakai, Shun Saito, Donald P. Schneider, Andreas Schulze, Khavvia Shanmugasundararaj, Matthew Shetrone, Chris Sneden, Jan Snigula, Matthias Steinmetz, Benjamin P. Thomas, Brianna Thomas, Sarah Tuttle, Tanya Urrutia, Lutz Wisotzki, Isak Wold, Gregory Zeimann, and Yechi Zhang

2021 The Astrophysical Journal 923 217.

Provider: AAS Journals

Caption: Figure 7.

Sky model and sky-subtracted residual (in counts per pixel) for fiber 55 on amplifier RU of IFUslot 093 (spectrograph 507). The sky model, in black, comes from the local-sky estimate and is based on all 112 fibers of the amplifier. The sky-subtracted residual is in red and is derived by subtracting the sky model from the extracted fiber data. The spectra are from the first dither sequence of exposure number 016 on 2021 July 31. The variation in the residual is equal to that expected from the counting statistics of the sky counts.

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