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High-ContrastImagingNoiseModels
KarlStapelfeldt (JPL),MarkMarley(Ames),JacobLustig-Yaeger (UW),JasonTumlinson (STScI)
TylerD.Robinson(UCSC;SaganFellow)
FromSeager etal.(2015)Exo-SFinalReport CourtesyG.Snyder,M.Kuchner
FromSeager etal.(2015)Exo-SFinalReportCourtesyG.Snyder,M.Kuchner
Countsfrom:• planet• stellarleakage• (exo)zodiacaldust• detectornoise• telescope/instrument
thermal
KeyDetails
• modelisfullydescribedinRobinsonetal.(2016)• arXiv:1507.00777
• IDLcode(andvariants)availableonline• e.g.,github.com/tdrobinson/coronagraph_noise
• Pythoncode(andvariants)availableonline• Github.com/jlustigy/coronagraph
• Onlinesimulators/visualizersat:• www.jt-astro.science/luvoir_simtools/coron_model.html
Howdoesitwork?
AStraightforwardCoronagraphNoiseModel
• stellarleakage (� C xFs)
• SolarSystemzodiacallight (� Ω xF�)
• exozodiacal light (� Nez xΩ xFs x1/r2)
• darkcurrent (� Npix xDe)
• readnoise (� Npix xRe /Δtmax )
• clock-inducedcharge(� Npix xRCIC /Δtmax )
instrument/telescope params
47Umac;G1Vat14pc;>0.5MJ on3.6AUorbit
SummaryandConclusions
• efficient,realistic1-D(wavelength)modelforhigh-contrastimaging
• inplanetPSFcore,outputs:• countrates• SNRs• requisiteintegrationtimes
• IDL,Python,web-basedtoolsavailable
Thanksto:SaganFellowship,bothWFIRSTSITs,NAIVPL,UCSCOWL,andtheNExSS