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dc.contributor.authorHoadley, Keri
dc.contributor.authorHamden, Erika T.
dc.contributor.authorMilliard, Bruno
dc.contributor.authorKhan, Aafaque
dc.contributor.authorAgarwal, Simran
dc.contributor.authorLin, Zeren
dc.contributor.authorSchiminovich, David
dc.contributor.authorKyne, Gillian
dc.contributor.authorEvrard, Jean
dc.contributor.authorMartin, Christopher
dc.date.accessioned2020-03-25T20:46:56Z
dc.date.available2020-03-25T20:46:56Z
dc.date.issued2019-09-09
dc.identifier.citationKeri Hoadley, Erika T. Hamden, Bruno Milliard, Aafaque R. Khan, Simran Agarwal, Zeren Lin, David Schiminovich, Gillian Kyne, Jean Evrard, and D. Christopher Martin "The FIREBall-2 UV balloon telescope: 2018 flight and improvements for 2020", Proc. SPIE 11118, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXI, 1111815 (9 September 2019); https://doi.org/10.1117/12.2530047en_US
dc.identifier.issn0277-786X
dc.identifier.doi10.1117/12.2530047
dc.identifier.urihttp://hdl.handle.net/10150/638075
dc.description.abstractThe Faint Intergalactic-medium Redshifted Emission Balloon (FIREBall-2, FB-2) is designed to discover and map faint UV emission from the circumgalactic medium around low redshift galaxies (z similar to 0.3 (C IV); z similar to 0.7 (Lyff); z similar to 1.0 (O VI)). FIREBall-2's first launch, on September 22nd 2018 out of Ft. Sumner, NM, was abruptly cut short due to a hole that developed in the balloon. FIREBall-2 was unable to observe above its minimum require altitude (25 km; nominal: 32 km) for its shortest required time (2 hours; nominal: 8+ hours). The shape of the deflated balloon, as well as a concurrent full moon close to our observed target field, revealed a severe, off-axis scattered light path directly to the UV science detector. Additional damage to FB-2 added complications to the ongoing effort to prepare FB-2 for a quick re-floght. Upon landing, several mirrors in the optical chain, including the two large telescope mirrors, were damaged, resulting in chunks of material broken off the sides and reflecting surfaces. The magnifying optical element, called the focal corrector, was discovered to be misaligned beyond tolerance after the 2018 flight, with one of its two mirrors damaged from the landing impact. We describe the steps taken thus far to mitigate the damage to the optics, as well as procedures and results from the ongoing efforts to re-align the focal corrector and spectrograph optics. We report the throughput of the spectrograph before and after the 2018 flight and plans for improving it. Finally, we describe several methods by which we address the scattered light issues seen from FIREBall-2's 2018 campaign and present the current status of FB-2 to fly during the summer campaign in Palestine, TX in 2020.en_US
dc.language.isoenen_US
dc.publisherSPIE-INT SOC OPTICAL ENGINEERINGen_US
dc.rightsCopyright © (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.en_US
dc.sourceUV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXI
dc.subjectScientific Ballooningen_US
dc.subjectCGMen_US
dc.subjectGalaxy Evolutionen_US
dc.subjectOptical Alignmenten_US
dc.titleThe FIREBall-2 UV balloon telescope: 2018 flight and improvements for 2020en_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Steward Observen_US
dc.identifier.journalUV, X-RAY, AND GAMMA-RAY SPACE INSTRUMENTATION FOR ASTRONOMY XXIen_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal published versionen_US
refterms.dateFOA2020-03-25T20:47:00Z


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