| DOI | Resolve DOI: https://doi.org/10.3847/1538-3881/ab17db |
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| Author | Search for: Greenbaum, Alexandra Z.ORCID identifier: https://orcid.org/0000-0002-7162-8036; Search for: Cheetham, AnthonyORCID identifier: https://orcid.org/0000-0003-3943-4044; Search for: Sivaramakrishnan, AnandORCID identifier: https://orcid.org/0000-0003-1251-4124; Search for: Rantakyrö, Fredrik T.ORCID identifier: https://orcid.org/0000-0002-9667-2244; Search for: Duchêne, Gaspard; Search for: Tuthill, Peter; Search for: De Rosa, Robert J.; Search for: Oppenheimer, RebeccaORCID identifier: https://orcid.org/0000-0001-7130-7681; Search for: Macintosh, BruceORCID identifier: https://orcid.org/0000-0003-1212-7538; Search for: Ammons, S. Mark; Search for: Bailey, Vanessa P.ORCID identifier: https://orcid.org/0000-0002-5407-2806; Search for: Barman, TravisORCID identifier: https://orcid.org/0000-0002-7129-3002; Search for: Bulger, JoannaORCID identifier: https://orcid.org/0000-0003-4641-2003; Search for: Cardwell, Andrew; Search for: Chilcote, JeffreyORCID identifier: https://orcid.org/0000-0001-6305-7272; Search for: Cotten, TaraORCID identifier: https://orcid.org/0000-0003-0156-3019; Search for: Doyon, Rene; Search for: Fitzgerald, Michael P.ORCID identifier: https://orcid.org/0000-0002-0176-8973; Search for: Follette, Katherine B.ORCID identifier: https://orcid.org/0000-0002-7821-0695; Search for: Gerard, Benjamin L.1ORCID identifier: https://orcid.org/0000-0003-3978-9195; Search for: Goodsell, Stephen J.ORCID identifier: https://orcid.org/0000-0002-4144-5116; Search for: Graham, James R.; Search for: Hibon, PascaleORCID identifier: https://orcid.org/0000-0003-3726-5494; Search for: Hung, Li-WeiORCID identifier: https://orcid.org/0000-0003-1498-6088; Search for: Ingraham, PatrickORCID identifier: https://orcid.org/0000-0003-3715-8138; Search for: Kalas, Paul; Search for: Konopacky, QuinnORCID identifier: https://orcid.org/0000-0002-9936-6285; Search for: Larkin, James E.ORCID identifier: https://orcid.org/0000-0001-7687-3965; Search for: Maire, Jérôme; Search for: Marchis, FranckORCID identifier: https://orcid.org/0000-0001-7016-7277; Search for: Marley, Mark S.ORCID identifier: https://orcid.org/0000-0002-5251-2943; Search for: Marois, Christian1ORCID identifier: https://orcid.org/0000-0002-4164-4182; Search for: Metchev, StanimirORCID identifier: https://orcid.org/0000-0003-3050-8203; Search for: Millar-Blanchaer, Maxwell A.ORCID identifier: https://orcid.org/0000-0001-6205-9233; Search for: Morzinski, Katie M.ORCID identifier: https://orcid.org/0000-0002-1384-0063; Search for: Nielsen, Eric L.; Search for: Palmer, David; Search for: Patience, Jennifer; Search for: Perrin, MarshallORCID identifier: https://orcid.org/0000-0002-3191-8151; Search for: Poyneer, Lisa; Search for: Pueyo, Laurent; Search for: Rajan, AbhijithORCID identifier: https://orcid.org/0000-0002-9246-5467; Search for: Rameau, JulienORCID identifier: https://orcid.org/0000-0003-0029-0258; Search for: Sadakuni, Naru; Search for: Savransky, DmitryORCID identifier: https://orcid.org/0000-0002-8711-7206; Search for: Schneider, Adam C.ORCID identifier: https://orcid.org/0000-0002-6294-5937; Search for: Song, InseokORCID identifier: https://orcid.org/0000-0002-5815-7372; Search for: Soummer, RemiORCID identifier: https://orcid.org/0000-0003-2753-2819; Search for: Thomas, SandrineORCID identifier: https://orcid.org/0000-0002-9121-3436; Search for: Wallace, J. Kent; Search for: Wang, Jason J.ORCID identifier: https://orcid.org/0000-0003-0774-6502; Search for: Ward-Duong, KimberlyORCID identifier: https://orcid.org/0000-0002-4479-8291; Search for: Wiktorowicz, SloaneORCID identifier: https://orcid.org/0000-0003-4483-5037; Search for: Wolff, SchuylerORCID identifier: https://orcid.org/0000-0002-9977-8255 |
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| Affiliation | - National Research Council of Canada. Herzberg Astronomy and Astrophysics
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| Format | Text, Article |
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| Subject | instrumentation: adaptive optics; stars: individual (HR 2690, HD 142527); techniques: high angular resolution |
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| Abstract | The Gemini Planet Imager (GPI) contains a 10-hole non-redundant mask (NRM), enabling interferometric resolution in complement to its coronagraphic capabilities. The NRM operates both in spectroscopic (integral field spectrograph, henceforth IFS) and polarimetric configurations. NRM observations were taken between 2013 and 2016 to characterize its performance. Most observations were taken in spectroscopic mode, with the goal of obtaining precise astrometry and spectroscopy of faint companions to bright stars. We find a clear correlation between residual wavefront error measured by the adaptive optic system and the contrast sensitivity by comparing phase errors in observations of the same source, taken on different dates. We find a typical 5σ contrast sensitivity of (2–3) × 10⁻³ at ~λ/D. We explore the accuracy of spectral extraction of secondary components of binary systems by recovering the signal from a simulated source injected into several data sets. We outline data reduction procedures unique to GPI's IFS and describe a newly public data pipeline used for the presented analyses. We demonstrate recovery of astrometry and spectroscopy of two known companions to HR 2690 and HD 142527. NRM+polarimetry observations achieve differential visibility precision of σ ~ 0.4% in the best case. We discuss its limitations on Gemini-S/GPI for resolving inner regions of protoplanetary disks and prospects for future upgrades. We summarize lessons learned in observing with NRM in spectroscopic and polarimetric modes. |
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| Publication date | 2019-06-03 |
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| Publisher | IOP |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 19327df2-68c7-4a72-8e3f-80f51f6b014e |
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| Record created | 2021-05-20 |
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| Record modified | 2021-05-20 |
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