Technique-agnostic exoplanet demography for the Roman era -- I. Testing a demography retrieval framework using simulated Kepler-like transit datasets
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| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| author | Priyadarshi, Akshay Kerins, Eamonn Albrow, Michael D. Anderson, Jay Bachelet, Etienne Beichman, Chas Bennett, David P. Bhattacharya, Aparna Bozza, Valerio Brandon, Chris Novati, Sebastiano Calchi Carden, Kylee Carey, Sean Christiansen, Jessie Crisp, Ali DeRocco, William Gaudi, Scott Hulberg, Jon Huston, Macy J. Silva, Stela Ishitani Khakpash, Somayeh Kruszyńska, Katarzyna Malpas, Amber Murlidhar, Arjun Lam, Casey Lesley-Saldaña, Xavier Lu, Jessica R. Olmschenk, Greg Penny, Matthew Stassun, Keivan G. Stephan, Alexander P. Street, Rachel A. Sumi, Takahiro Terry, Sean K. Verma, Himanshu Zang, Weicheng Zohrabi, Farzaneh Duck, Alison Espinoza, Nestor Hoffman, Kelsey Martinez-Palomera, Jorge Mullally, Susan Quintana, Elisa Wilson, Robert |
| author_facet | Priyadarshi, Akshay Kerins, Eamonn Albrow, Michael D. Anderson, Jay Bachelet, Etienne Beichman, Chas Bennett, David P. Bhattacharya, Aparna Bozza, Valerio Brandon, Chris Novati, Sebastiano Calchi Carden, Kylee Carey, Sean Christiansen, Jessie Crisp, Ali DeRocco, William Gaudi, Scott Hulberg, Jon Huston, Macy J. Silva, Stela Ishitani Khakpash, Somayeh Kruszyńska, Katarzyna Malpas, Amber Murlidhar, Arjun Lam, Casey Lesley-Saldaña, Xavier Lu, Jessica R. Olmschenk, Greg Penny, Matthew Stassun, Keivan G. Stephan, Alexander P. Street, Rachel A. Sumi, Takahiro Terry, Sean K. Verma, Himanshu Zang, Weicheng Zohrabi, Farzaneh Duck, Alison Espinoza, Nestor Hoffman, Kelsey Martinez-Palomera, Jorge Mullally, Susan Quintana, Elisa Wilson, Robert |
| contents | The Nancy Grace Roman Space Telescope (Roman) will unveil for the first time the full architecture of planetary systems across Galactic distances through the discovery of up to 200,000 cool and hot exoplanets using microlensing and transit detection methods. Roman's huge exoplanet haul, and Galactic reach, will require new methods to leverage the full exoplanet demographic content of the combined microlensing and transit samples, given the different sensitivity bias of the techniques to planet and host properties and Galactic location. We present a framework for technique-agnostic exoplanet demography (TAED) that can allow large, multi-technique exoplanet samples distributed over Galactic distance scales to be combined for demographic studies. Our TAED forward modelling and retrieval framework uses parameterised model exoplanet demographic distributions to embed planetary systems within a stellar population synthesis model of the Galaxy, enabling internally consistent forecasts to be made for all detection methods that are based on spatio-kinematic system properties. In this paper, as a first test of the TAED framework, we apply it to simulated transit datasets based on the Kepler Data Release 25 to assess parameter recovery accuracy and method scalability for a single large homogeneous dataset. We find that optimisation using differential evolution provides a computationally scalable framework that gives a good balance between computational efficiency and accuracy of parameter recovery. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_24401 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Technique-agnostic exoplanet demography for the Roman era -- I. Testing a demography retrieval framework using simulated Kepler-like transit datasets Priyadarshi, Akshay Kerins, Eamonn Albrow, Michael D. Anderson, Jay Bachelet, Etienne Beichman, Chas Bennett, David P. Bhattacharya, Aparna Bozza, Valerio Brandon, Chris Novati, Sebastiano Calchi Carden, Kylee Carey, Sean Christiansen, Jessie Crisp, Ali DeRocco, William Gaudi, Scott Hulberg, Jon Huston, Macy J. Silva, Stela Ishitani Khakpash, Somayeh Kruszyńska, Katarzyna Malpas, Amber Murlidhar, Arjun Lam, Casey Lesley-Saldaña, Xavier Lu, Jessica R. Olmschenk, Greg Penny, Matthew Stassun, Keivan G. Stephan, Alexander P. Street, Rachel A. Sumi, Takahiro Terry, Sean K. Verma, Himanshu Zang, Weicheng Zohrabi, Farzaneh Duck, Alison Espinoza, Nestor Hoffman, Kelsey Martinez-Palomera, Jorge Mullally, Susan Quintana, Elisa Wilson, Robert Earth and Planetary Astrophysics Astrophysics of Galaxies Instrumentation and Methods for Astrophysics The Nancy Grace Roman Space Telescope (Roman) will unveil for the first time the full architecture of planetary systems across Galactic distances through the discovery of up to 200,000 cool and hot exoplanets using microlensing and transit detection methods. Roman's huge exoplanet haul, and Galactic reach, will require new methods to leverage the full exoplanet demographic content of the combined microlensing and transit samples, given the different sensitivity bias of the techniques to planet and host properties and Galactic location. We present a framework for technique-agnostic exoplanet demography (TAED) that can allow large, multi-technique exoplanet samples distributed over Galactic distance scales to be combined for demographic studies. Our TAED forward modelling and retrieval framework uses parameterised model exoplanet demographic distributions to embed planetary systems within a stellar population synthesis model of the Galaxy, enabling internally consistent forecasts to be made for all detection methods that are based on spatio-kinematic system properties. In this paper, as a first test of the TAED framework, we apply it to simulated transit datasets based on the Kepler Data Release 25 to assess parameter recovery accuracy and method scalability for a single large homogeneous dataset. We find that optimisation using differential evolution provides a computationally scalable framework that gives a good balance between computational efficiency and accuracy of parameter recovery. |
| title | Technique-agnostic exoplanet demography for the Roman era -- I. Testing a demography retrieval framework using simulated Kepler-like transit datasets |
| topic | Earth and Planetary Astrophysics Astrophysics of Galaxies Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2509.24401 |