Dr Katy Chubb

Dr Katy Chubb

Research Fellow (Exoplanet Atmospheres)

Researcher profile

Email
klc20@st-andrews.ac.uk

 

Research areas

I largely work on characterising the atmospheres of exoplanets, with a background in theoretical molecular spectroscopy. I joined St Andrews in September 2021, to work with Christiane Helling on combining spectroscopy and polarimetry to characterise complex weather on exoplanets. Prior to joining St Andrews I was a postdoc at SRON Netherlands Institute for Space Research, working with Michiel Min. There I focused on retrievals of exoplanet atmospheres in preparation for JWST. I computed many opacities for a large variety of molecular species and re-analysed archive HST data to search for evidence of molecular signatures. I worked on moving towards a more 3D model of retrieving atmospheric properties from observations using radiative transfer. I am interested in expanding on this work, and investigating more methods to characterise atmospheres in detail, such as using polarimetry, combined with complex 3D cloud formation models and spectroscopy, to determine cloud and gas composition in gas giant exoplanets. 

I received my PhD from University College London (supervisors: Sergey Yurchenko and Jonathan Tennyson). There I computed a high-temperature linelist for acetylene (C2H2) for use in characterising exoplanet and stellar atmospheres, as part of the ExoMol group. I have worked on a number of initiatives and collaborations, including the Mayors fund for London Astronomy Club, and ORBYTS (Original Research for Young Twinkle Students), where I led projects to make theoretical line lists suitable for high resolution studies.

Selected publications

  • Open access

    Clouds form on the hot Saturn JWST ERO target WASP-96b

     Samra, D., Helling, C., Chubb, K., Min, M., Carone, L. & Schneider, A., 25 Jan 2023, In: Astronomy & Astrophysics. 669, 17 p., A142.

    Research output: Contribution to journal › Article › peer-review

  • Open access

    Early Release Science of the exoplanet WASP-39b with JWST NIRCam

     Ahrer, E-M., Stevenson, K. B., Mansfield, M., Moran, S. E., Brande, J., Morello, G., Murray, C. A., Nikolov, N. K., Petit dit de la Roche, D. J. M., Schlawin, E., Wheatley, P. J., Zieba, S., Batalha, N. E., Damiano, M., Goyal, J. M., Lendl, M., Lothringer, J. D., Mukherjee, S., Ohno, K., Batalha, N. M., Battley, M. P., Bean, J. L., Beatty, T. G., Benneke, B., Berta-Thompson, Z. K., Carter, A. L., Cubillos, P. E., Daylan, T., Espinoza, N., Gao, P., Gibson, N. P., Gill, S., Harrington, J., Hu, R., Kreidberg, L., Lewis, N. K., Line, M. R., López-Morales, M., Parmentier, V., Powell, D. K., Sing, D. K., Tsai, S-M., Wakeford, H. R., Welbanks, L., Alam, M. K., Alderson, L., Allen, N. H., Anderson, D. R., Barstow, J. K., Bayliss, D., Bell, T. J., Blecic, J., Bryant, E. M., Burleigh, M. R., Carone, L., Casewell, S. L., Changeat, Q., Chubb, K. L., Crossfield, I. J. M., Crouzet, N., Decin, L., Désert, J-M., Feinstein, A. D., Flagg, L., Fortney, J. J., Gizis, J. E., Heng, K., Iro, N., Kempton, E. M. -R., Kendrew, S., Kirk, J., Knutson, H. A., Komacek, T. D., Lagage, P-O., Leconte, J., Lustig-Yaeger, J., MacDonald, R. J., Mancini, L., May, E. M., Mayne, N. J., Miguel, Y., Mikal-Evans, T., Molaverdikhani, K., Palle, E., Piaulet, C., Rackham, B. V., Redfield, S., Rogers, L. K., Roy, P-A., Rustamkulov, Z., Shkolnik, E. L., Sotzen, K. S., Taylor, J., Tremblin, P., Tucker, G. S., Turner, J. D., de Val-Borro, M., Venot, O. & Zhang, X., 23 Feb 2023, In: Nature. 614, 7949, p. 653–658 23 p.

    Research output: Contribution to journal › Article › peer-review

  • Early Release Science of the exoplanet WASP-39b with JWST NIRISS

     Feinstein, A. D., Radica, M., Welbanks, L., Murray, C. A., Ohno, K., Coulombe, L-P., Espinoza, N., Bean, J. L., Teske, J. K., Benneke, B., Line, M. R., Rustamkulov, Z., Saba, A., Tsiaras, A., Barstow, J. K., Fortney, J. J., Gao, P., Knutson, H. A., MacDonald, R. J., Mikal-Evans, T., Rackham, B. V., Taylor, J., Parmentier, V., Batalha, N. M., Berta-Thompson, Z. K., Carter, A. L., Changeat, Q., Dos Santos, L. A., Gibson, N. P., Goyal, J. M., Kreidberg, L., López-Morales, M., Lothringer, J. D., Miguel, Y., Molaverdikhani, K., Moran, S. E., Morello, G., Mukherjee, S., Sing, D. K., Stevenson, K. B., Wakeford, H. R., Ahrer, E-M., Alam, M. K., Alderson, L., Allen, N. H., Batalha, N. E., Bell, T. J., Blecic, J., Brande, J., Caceres, C., Casewell, S. L., Chubb, K. L., Crossfield, I. J. M., Crouzet, N., Cubillos, P. E., Decin, L., Désert, J-M., Harrington, J., Heng, K., Henning, T., Iro, N., Kempton, E. M. -R., Kendrew, S., Kirk, J., Krick, J., Lagage, P-O., Lendl, M., Mancini, L., Mansfield, M., May, E. M., Mayne, N. J., Nikolov, N. K., Palle, E., de la Roche, D. J. M. P. D., Piaulet, C., Powell, D., Redfield, S., Rogers, L. K., Roman, M. T., Roy, P-A., Nixon, M. C., Schlawin, E., Tan, X., Tremblin, P., Turner, J. D., Venot, O., Waalkes, W. C., Wheatley, P. J. & Zhang, X., 9 Jan 2023, (E-pub ahead of print) In: Nature.

    Research output: Contribution to journal › Article › peer-review

  • Early Release Science of the exoplanet WASP-39b with JWST NIRSpec G395H

     Alderson, L., Wakeford, H. R., Alam, M. K., Batalha, N. E., Lothringer, J. D., Redai, J. A., Barat, S., Brande, J., Damiano, M., Daylan, T., Espinoza, N., Flagg, L., Goyal, J. M., Grant, D., Hu, R., Inglis, J., Lee, E. K. H., Mikal-Evans, T., Ramos-Rosado, L., Roy, P-A., Wallack, N. L., Batalha, N. M., Bean, J. L., Benneke, B., Berta-Thompson, Z. K., Carter, A. L., Changeat, Q., Colón, K. D., Crossfield, I. J. M., Désert, J-M., Foreman-Mackey, D., Gibson, N. P., Kreidberg, L., Line, M. R., López-Morales, M., Molaverdikhani, K., Moran, S. E., Morello, G., Moses, J. I., Mukherjee, S., Schlawin, E., Sing, D. K., Stevenson, K. B., Taylor, J., Aggarwal, K., Ahrer, E-M., Allen, N. H., Barstow, J. K., Bell, T. J., Blecic, J., Casewell, S. L., Chubb, K. L., Crouzet, N., Cubillos, P. E., Decin, L., Feinstein, A. D., Fortney, J. J., Harrington, J., Heng, K., Iro, N., Kempton, E. M. -R., Kirk, J., Knutson, H. A., Krick, J., Leconte, J., Lendl, M., MacDonald, R. J., Mancini, L., Mansfield, M., May, E. M., Mayne, N. J., Miguel, Y., Nikolov, N. K., Ohno, K., Palle, E., Parmentier, V., Petit dit de la Roche, D. J. M., Piaulet, C., Powell, D., Rackham, B. V., Redfield, S., Rogers, L. K., Rustamkulov, Z., Tan, X., Tremblin, P., Tsai, S-M., Turner, J. D., de Val-Borro, M., Venot, O., Welbanks, L., Wheatley, P. J. & Zhang, X., 9 Jan 2023, (E-pub ahead of print) In: Nature.

    Research output: Contribution to journal › Article › peer-review

  • Early Release Science of the exoplanet WASP-39b with JWST NIRSpec PRISM

     Rustamkulov, Z., Sing, D. K., Mukherjee, S., May, E. M., Kirk, J., Schlawin, E., Line, M. R., Piaulet, C., Carter, A. L., Batalha, N. E., Goyal, J. M., López-Morales, M., Lothringer, J. D., MacDonald, R. J., Moran, S. E., Stevenson, K. B., Wakeford, H. R., Espinoza, N., Bean, J. L., Batalha, N. M., Benneke, B., Berta-Thompson, Z. K., Crossfield, I. J. M., Gao, P., Kreidberg, L., Powell, D. K., Cubillos, P. E., Gibson, N. P., Leconte, J., Molaverdikhani, K., Nikolov, N. K., Parmentier, V., Roy, P., Taylor, J., Turner, J. D., Wheatley, P. J., Aggarwal, K., Ahrer, E., Alam, M. K., Alderson, L., Allen, N. H., Banerjee, A., Barat, S., Barrado, D., Barstow, J. K., Bell, T. J., Blecic, J., Brande, J., Casewell, S., Changeat, Q., Chubb, K. L., Crouzet, N., Daylan, T., Decin, L., Désert, J., Mikal-Evans, T., Feinstein, A. D., Flagg, L., Fortney, J. J., Harrington, J., Heng, K., Hong, Y., Hu, R., Iro, N., Kataria, T., Kempton, E. M. -R., Krick, J., Lendl, M., Lillo-Box, J., Louca, A., Lustig-Yaeger, J., Mancini, L., Mansfield, M., Mayne, N. J., Miguel, Y., Morello, G., Ohno, K., Palle, E., Petit dit de la Roche, D. J. M., Rackham, B. V., Radica, M., Ramos-Rosado, L., Redfield, S., Rogers, L. K., Shkolnik, E. L., Southworth, J., Teske, J., Tremblin, P., Tucker, G. S., Venot, O., Waalkes, W. C., Welbanks, L., Zhang, X. & Zieba, S., 23 Feb 2023, In: Nature. 614, 7949, p. 659–663 5 p.

    Research output: Contribution to journal › Article › peer-review

  • Open access

    Exoplanet weather and climate regimes with clouds and thermal ionospheres: a model grid study in support of large-scale observational campaigns

     Helling, C., Samra, D., Lewis, D., Calder, R., Hirst, G., Woitke, P., Baeyens, R., Carone, L., Herbort, O. & Chubb, K. L., 14 Mar 2023, (E-pub ahead of print) In: Astronomy & Astrophysics. 671, 35 p., A122.

    Research output: Contribution to journal › Article › peer-review

  • Open access

    A quantitative assessment of the VO line list: inaccuracies hamper high-resolution VO detections in exoplanet atmospheres

     de Regt, S., Kesseli, A. Y., Snellen, I. A. G., Merritt, S. R. & Chubb, K. L., 24 May 2022, In: Astronomy & Astrophysics. 661, 9 p., A109.

    Research output: Contribution to journal › Article › peer-review

  • Open access

    A retrieval challenge exercise for the Ariel mission

     Barstow, J. K., Changeat, Q., Chubb, K. L., Cubillos, P. E., Edwards, B., MacDonald, R. J., Min, M. & Waldmann, I. P., 1 Apr 2022, In: Experimental Astronomy. 53, 2, p. 447-471 25 p.

    Research output: Contribution to journal › Article › peer-review

  • Open access

    Cross-sections for heavy atmospheres: H2O self-broadening

     Anisman, L. O., Chubb, K. L., Changeat, Q., Edwards, B., Yurchenko, S. N., Tennyson, J. & Tinetti, G., 4 Mar 2022, (E-pub ahead of print) In: Journal of Quantitative Spectroscopy and Radiative Transfer. 108146.

    Research output: Contribution to journal › Article › peer-review

  • Direct Evidence of Photochemistry in an Exoplanet Atmosphere

     Tsai, S-M., Lee, E. K. H., Powell, D., Gao, P., Zhang, X., Moses, J., Hébrard, E., Venot, O., Parmentier, V., Jordan, S., Hu, R., Alam, M. K., Alderson, L., Batalha, N. M., Bean, J. L., Benneke, B., Bierson, C. J., Brady, R. P., Carone, L., Carter, A. L., Chubb, K. L., Inglis, J., Leconte, J., Lopez-Morales, M., Miguel, Y., Molaverdikhani, K., Rustamkulov, Z., Sing, D. K., Stevenson, K. B., Wakeford, H. R., Yang, J., Aggarwal, K., Baeyens, R., Barat, S., Borro, M. D. V., Daylan, T., Fortney, J. J., France, K., Goyal, J. M., Grant, D., Kirk, J., Kreidberg, L., Louca, A., Moran, S. E., Mukherjee, S., Nasedkin, E., Ohno, K., Rackham, B. V., Redfield, S., Taylor, J., Tremblin, P., Visscher, C., Wallack, N. L., Welbanks, L., Youngblood, A., Ahrer, E-M., Batalha, N. E., Behr, P., Berta-Thompson, Z. K., Blecic, J., Casewell, S. L., Crossfield, I. J. M., Crouzet, N., Cubillos, P. E., Decin, L., Désert, J-M., Feinstein, A. D., Gibson, N. P., Harrington, J., Heng, K., Henning, T., Kempton, E. M. -R., Krick, J., Lagage, P-O., Lendl, M., Line, M., Lothringer, J. D., Mansfield, M., Mayne, N. J., Mikal-Evans, T., Palle, E., Schlawin, E., Shorttle, O., Wheatley, P. J. & Yurchenko, S. N., 2022, arXiv.

    Research output: Other contribution

 

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