Coronagraphic Data Post-processing Using Projections on Instrumental Modes

Article

Xin, Yinzi, Pueyo, Laurent, Laugier, Romain, Pogorelyuk, Leonid, Douglas, Ewan S., Pope, Benjamin J. S. and Cahoy, K.L.. 2024. "Coronagraphic Data Post-processing Using Projections on Instrumental Modes." The Astrophysical Journal: an international review of astronomy and astronomical physics. 963 (2). https://doi.org/10.3847/1538-4357/ad1879
Article Title

Coronagraphic Data Post-processing Using Projections on Instrumental Modes

ERA Journal ID1057
Article CategoryArticle
AuthorsXin, Yinzi, Pueyo, Laurent, Laugier, Romain, Pogorelyuk, Leonid, Douglas, Ewan S., Pope, Benjamin J. S. and Cahoy, K.L.
Journal TitleThe Astrophysical Journal: an international review of astronomy and astronomical physics
Journal Citation963 (2)
Article Number96
Number of Pages14
Year2024
PublisherIOP Publishing
Place of PublicationUnited States
ISSN0004-637X
1538-4357
Digital Object Identifier (DOI)https://doi.org/10.3847/1538-4357/ad1879
Web Address (URL)https://iopscience.iop.org/article/10.3847/1538-4357/ad1879
AbstractDirectly observing exoplanets with coronagraphs is impeded by the presence of speckles from aberrations in the optical path, which can be mitigated in hardware with wave front control, as well as in post-processing. This work explores using an instrument model in post-processing to separate astrophysical signals from residual aberrations in coronagraphic data. The effect of wave front error (WFE) on the coronagraphic intensity consists of a linear contribution and a quadratic contribution. When either of the terms is much larger than the other, the instrument response can be approximated by a transfer matrix mapping WFE to detector plane intensity. From this transfer matrix, a useful projection onto instrumental modes that removes the dominant error modes can be derived. We apply this approach to synthetically generated Roman Space Telescope hybrid Lyot coronagraph data to extract "robust observables," which can be used instead of raw data for applications such as detection testing. The projection improves planet flux ratio detection limits by about 28% in the linear regime and by over a factor of 2 in the quadratic regime, illustrating that robust observables can increase sensitivity to astrophysical signals and improve the scientific yield from coronagraphic data. While this approach does not require additional information such as observations of reference stars or modulations of a deformable mirror, it can and should be combined with these other techniques, acting as a model-informed prior in an overall post-processing strategy.
KeywordsCoronagraphic imaging; Direct imaging; Exoplanet astronomy ; Exoplanet detection methods
Contains Sensitive ContentDoes not contain sensitive content
ANZSRC Field of Research 20205101. Astronomical sciences
Byline AffiliationsMassachusetts Institute of Technology, United States
Space Telescope Science Institute, United States
California Institute of Technology (Caltech), United States
Cote d'Azur University, France
University of Arizona, United States
Centre for Astrophysics
University of Queensland
Permalink -

https://research.usq.edu.au/item/z5vz4/coronagraphic-data-post-processing-using-projections-on-instrumental-modes

Log in to edit

Download files

Published Version
Xin_2024_ApJ_963_96.pdf
License: CC BY 4.0
File access level: Anyone

  • 38
    total views
  • 20
    total downloads
  • 2
    views this month
  • 1
    downloads this month

Export as

Related outputs

Astrometry and Precise Radial Velocities Yield a Complete Orbital Solution for the Nearby Eccentric Brown Dwarf LHS 1610 b
Fitzmaurice, Evan, Stefánsson, Guđmundur, Kavanagh, Robert D., Mahadevan, Suvrath, Cañas, Caleb I., Winn, Joshua N., Robertson, Paul, Ninan, Joe P., Albrecht, Simon, Callingham, J. R., Cochran, William D., Delamer, Megan, Ford, , Eric B., Kanodia, Shubham, Lin, Andrea S. J., Marcussen, Marcus L., Pope, Benjamin J. S., Ramsey, Lawrence W., Roy, Arpita, ..., Wright, Jason T.. 2024. "Astrometry and Precise Radial Velocities Yield a Complete Orbital Solution for the Nearby Eccentric Brown Dwarf LHS 1610 b." The Astronomical Journal. 168 (3). https://doi.org/10.3847/1538-3881/ad57be
Validation of Elemental and Isotopic Abundances in Late-M Spectral Types with the Benchmark HIP 55507 AB System
Xuan, Jerry W., Wang, Jason, Finnerty, Luke, Horstman, Katelyn, Grimm, Simon, Peck, Anne E., Nielsen, Eric, Knutson, Heather A., Mawet, Dimitri, Isaacson, Howard, Howard, Andrew W., Liu, Michael C., Walker, Sam, Phillips, Mark W., Blake, Geoffrey A., Ruffio, Jean-Baptiste, Zhang, Yapeng, Inglis, Julie, Wallack, Nicole L., ..., Phillips, Caprice L.. 2024. "Validation of Elemental and Isotopic Abundances in Late-M Spectral Types with the Benchmark HIP 55507 AB System." The Astrophysical Journal: an international review of astronomy and astronomical physics. 962 (1). https://doi.org/10.3847/1538-4357/ad1243
Phenomenology and periodicity of radio emission from the stellar system AU Microscopii
Bloot, S., Callingham, J. R., Vedantham, H. K., Kavanagh, R. D,, Pope, B. J. S., Climent, J. B., Guirado, J. C., Peña-Moñino, L. and Pérez-Torres, M.. 2024. "Phenomenology and periodicity of radio emission from the stellar system AU Microscopii." Astronomy and Astrophysics: a European journal. 682. https://doi.org/10.1051/0004-6361/202348065
The Near Infrared Imager and Slitless Spectrograph for the James Webb Space Telescope. IV. Aperture Masking Interferometry
Sivaramakrishnan, Anand, Tuthill, Peter, Lloyd, James P., Greenbaum, Alexandra Z., Thatte, Deepashri, Cooper, Rachel A., Vandal, Thomas, Kammerer, Jens, Sanchez-Bermudez, Joel and Pope, Benjamin J. S.. 2023. "The Near Infrared Imager and Slitless Spectrograph for the James Webb Space Telescope. IV. Aperture Masking Interferometry." Publications of the Astronomical Society of the Pacific. 135 (1043). https://doi.org/10.1088/1538-3873/acaebd
Differentiable optics with a Lux: I - deep calibration of flat field and phase retrieval with automatic differentiation
Desdoigts, Louis, Pope, Benjamin J. S., Dennis, Jordan and Tuthill, Peter G.. 2023. "Differentiable optics with a Lux: I - deep calibration of flat field and phase retrieval with automatic differentiation." Journal of Astronomical Telescopes, Instruments, and Systems. 9 (2). https://doi.org/10.1117/1.JATIS.9.2.028007
V-LoTSS: The circularly polarised LOFAR Two-metre Sky Survey
Callingham J.R., Shimwell T.W., Vedantham H.K., Bassa C.G., O Sullivan S.P., Yiu T.W.H., Bloot S., Best P.N., Hardcastle M.J., Haverkorn M., Kavanagh R.D., Lamy L., Pope B.J.S., Röttgering H.J.A., Schwarz D.J., Tasse C., Van Weeren R.J., White G.J., Zarka P., Bomans D.J., Bonafede A., Bonato M., Botteon A., Bruggen M., Chyzy K.T., Drabent A., Emig K.L., Gloudemans A.J., Gürkan G., Hajduk M., Hoang D.N., Hoeft M., Iacobelli M., Kadler M., Kunert-Bajraszewska M., Mingo B., Morabito L.K., Nair D.G., Pérez-Torres M., Ray T.P., Riseley C.J., Rowlinson A., Shulevski A., Sweijen F., Timmerman R., Vaccari M., Zheng J., Callingham, J.R., Shimwell, T.W., Vedantham, H.K., Bassa, C.G., O’Sullivan, S.P., Yiu, T.W., Bloot, S., Best, P.N., Hardcastle, M.J., Haverkorn, M., Kavanagh, R.D., Lamy, L., Pope, B. J. S., Röttgering, H., Schwarz, D.J., Tasse, C., van Werren, R.J., White, G.J., ..., Hajduk, M.. 2023. "V-LoTSS: The circularly polarised LOFAR Two-metre Sky Survey." Astronomy and Astrophysics: a European journal. 670. https://doi.org/10.1051/0004-6361/202245567
JWST/NIRCam Discovery of the First Y+Y Brown Dwarf Binary: WISE J033605.05-014350.4
Pope, Benjamin J. S.. 2023. "JWST/NIRCam Discovery of the First Y+Y Brown Dwarf Binary: WISE J033605.05-014350.4." The Astrophysical Journal Letters. 947 (2). https://doi.org/10.3847/2041-8213/acc86d
The Kepler Smear Campaign: Light Curves for 102 Very Bright Stars
Pope, Benjamin J. S., Davies, Guy R., Hawkins, Keith, White, Timothy R., Stokholm, Amalie, Bieryla, Allyson, Latham, David W., Lucey, Madeline, Aerts, Conny, Aigrain, Suzanne, Antoci, Victoria, Bedding, Timothy R., Bowman, Dominic M., Caldwell, Douglas A., Chontos, Ashley, Esquerdo, Gilbert A., Huber, Daniel, Jofre, Paula, Murphy, Simon J., ..., Yu, Jie. 2019. "The Kepler Smear Campaign: Light Curves for 102 Very Bright Stars." Astrophysical Journal Supplement Series. 244 (1), pp. 1-19. https://doi.org/10.3847/1538-4365/ab2c04
Maelstrom: A Python package for identifying companions to pulsating stars from their light travel time variations
Hey, Daniel R., Murphy, Simon J., Foreman-Mackey, Daniel, Bedding, Timothy R., Pope, Benjamin J. S. and Hogg, David W.. 2020. "Maelstrom: A Python package for identifying companions to pulsating stars from their light travel time variations." Journal of Open Source Software. 5 (51), pp. 1-3. https://doi.org/10.21105/joss.02125
Forward Modeling the Orbits of Companions to Pulsating Stars from Their Light Travel Time Variations
Hey, Daniel R., Murphy, Simon J., Foreman-Mackey, Daniel, Bedding, Timothy R., Pope, Benjamin J. S. and Hogg, David W.. 2020. "Forward Modeling the Orbits of Companions to Pulsating Stars from Their Light Travel Time Variations." The Astronomical Journal. 159 (5), pp. 1-11. https://doi.org/10.3847/1538-3881/ab7d38
A Search for Transits among the Delta Scuti Variables in Kepler
Hey, Daniel R., Montet, Benjamin T., Pope, Benjamin J. S., Murphy, Simon J. and Bedding, Timothy R.. 2021. "A Search for Transits among the Delta Scuti Variables in Kepler." The Astronomical Journal. 162 (5), p. 204. https://doi.org/10.3847/1538-3881/ac1b9b
Kernel Phase and Coronagraphy with Automatic Differentiation
Pope, Benjamin J. S., Pueyo, Laurent, Xin, Yinzi and Tuthill, Peter G.. 2021. "Kernel Phase and Coronagraphy with Automatic Differentiation." The Astrophysical Journal: an international review of astronomy and astronomical physics. 907 (1), pp. 1-14. https://doi.org/10.3847/1538-4357/abcb00
The TESS View of LOFAR Radio-emitting Stars
Pope, Benjamin J. S., Callingham, Joseph R., Feinstein, Adina D., Gunther, Maximilian N., Vedantham, Harish K., Ansdell, Megan and Shimwell, Timothy W.. 2021. "The TESS View of LOFAR Radio-emitting Stars." The Astrophysical Journal Letters. 919 (1), pp. 1-8. https://doi.org/10.3847/2041-8213/ac230c
Phase retrieval and design with automatic differentiation: tutorial
Wong, Alison, Pope, Benjamin, Desdoigts, Louis, Tuthill, Peter, Norris, Barnaby and Betters, Chris. 2021. "Phase retrieval and design with automatic differentiation: tutorial." Journal of the Optical Society of America B: Optical Physics. 38 (9), pp. 2465-2478. https://doi.org/10.1364/JOSAB.432723
Beyond the Kepler/K2 bright limit: variability in the seven brightest members of the Pleiades
White, T. R., Pope, B. J. S., Antoci, V., Papics, P. I., Aerts, C., Gies, D. R., Gordon, K., Huber, D., Schaefer, G. H., Aigrain, S., Albrecht, S., Barclay, T., Barentsen, G., Beck, P. G., Bedding, T. R., Andersen, M. Fredslund, Grundahl, F., Howell, S. B., Ireland, M. J., ..., Tuthill, P. G.. 2017. "Beyond the Kepler/K2 bright limit: variability in the seven brightest members of the Pleiades." Monthly Notices of the Royal Astronomical Society. 471 (3), pp. 2882-2901. https://doi.org/10.1093/mnras/stx1050
maelstrom: Forward modeling of pulsating stars in binaries
Hey, Daniel R., Murphy, Simon J., Foreman-Mackey, Dan, Bedding, Timothy R., Pope, Benjamin J.S. and Hogg, David W.. 2022. maelstrom: Forward modeling of pulsating stars in binaries . Astrophysics Source Code Library.
Modelling cosmic radiation events in the tree-ring radiocarbon record
Zhang, Qingyuan, Sharma, Utkarsh, Dennis, Jordan A. Dennis, Scifo, Andrea, Kuitems, Margot, Büntgen, Ulf, Owens, Mathew J., Dee, Michael W. and Pope, Benjamin J. S.. 2022. "Modelling cosmic radiation events in the tree-ring radiocarbon record." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. 478 (2266). https://doi.org/10.1098/rspa.2022.0497
Photometry of very bright stars with Kepler and K2 smear data
Pope, B. J. S., White, T. R., Huber, D., Murphy, S. J., Bedding, T. R., Caldwell, D. A., Sarai, A., Aigrain, S. and Barclay, T.. 2015. "Photometry of very bright stars with Kepler and K2 smear data." Monthly Notices of the Royal Astronomical Society. 455 (1), pp. L36-L40. https://doi.org/10.1093/mnrasl/slv143