The PLATO Science Calibration and Validation Plan: Targets for the First Long-pointing Field
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2026
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| author | Zwintz, Konstanze Aerts, Conny Tkachenko, Andrew Cabrera, Juan Creevey, Orlagh Heller, Rene Jannsen, Nicholas Jiang, Chen Kochukhov, Oleg Lanza, Antonino Francesco Maxted, Pierre F. L. Messina, Sergio Miglio, Andrea Morel, Thierry Mosser, Benoiıt Ouazzani, Rhita Southworth, John van-Eiff, Matthias Ammler Audenaert, Jeroen Beck, Paul G. Belkacem, Kevin Birch, Aaron Bossini, Diego Bragaglia, Angela Briganti, Lorenzo Brown, David Börner, Anko Chiappini, Cristina Damiani, Cilia Gaulme, Patrick Huijse, Pablo Heise Heiter, Ulrike Helminiak, Krysztof G. Kliapets, Mykyta Lund, Mikkel N. Marrese, Paola Merle, Thibault Miller, Nicola Montalban, Josefina Palakkatharappil, Dinil Bose Paproth, Carsten Vazquez, Isabel Rebollido Scheller, Nena Sulis, Sophia Triaud, Amaury H. M. J. Valentini, Marica Vrard, Mathieu Deleuil, Magali Gizon, Laurent Heras, Ana M. Mas-Hesse, J. Miguel Osborn, Hugh Pagano, Isabella Piotto, Giampaolo Pollacco, Don Raggazoni, Roberto Ramsay, Gavin Rauer, Heike Udry, Stephane |
| author_facet | Zwintz, Konstanze Aerts, Conny Tkachenko, Andrew Cabrera, Juan Creevey, Orlagh Heller, Rene Jannsen, Nicholas Jiang, Chen Kochukhov, Oleg Lanza, Antonino Francesco Maxted, Pierre F. L. Messina, Sergio Miglio, Andrea Morel, Thierry Mosser, Benoiıt Ouazzani, Rhita Southworth, John van-Eiff, Matthias Ammler Audenaert, Jeroen Beck, Paul G. Belkacem, Kevin Birch, Aaron Bossini, Diego Bragaglia, Angela Briganti, Lorenzo Brown, David Börner, Anko Chiappini, Cristina Damiani, Cilia Gaulme, Patrick Huijse, Pablo Heise Heiter, Ulrike Helminiak, Krysztof G. Kliapets, Mykyta Lund, Mikkel N. Marrese, Paola Merle, Thibault Miller, Nicola Montalban, Josefina Palakkatharappil, Dinil Bose Paproth, Carsten Vazquez, Isabel Rebollido Scheller, Nena Sulis, Sophia Triaud, Amaury H. M. J. Valentini, Marica Vrard, Mathieu Deleuil, Magali Gizon, Laurent Heras, Ana M. Mas-Hesse, J. Miguel Osborn, Hugh Pagano, Isabella Piotto, Giampaolo Pollacco, Don Raggazoni, Roberto Ramsay, Gavin Rauer, Heike Udry, Stephane |
| contents | In order to meet the science goals of the PLATO space mission, an extensive science calibration and validation plan has been designed. This paper describes this plan, as well as the methodology adopted to select the science calibration and validation stars that have entered its input catalogue. This is the so-called {\tt scvPIC}, which is part of the general PLATO Input Catalogue (PIC) for the first selected long pointing field in the Southern Hemisphere known as LOPS2. While many of PLATO's science requirements needed dedicated stars as calibrators as discussed here, its most stringent requirement is the delivery of the age of the host stars of exoplanetary systems with an accuracy better than 10\% for a G0V star of {\it V} = 10 mag, i.e. a nearby Sun-like star. This is presently not within reach for large populations of dwarfs and subgiants in the Milky Way as it requires the models of their stellar interiors to be improved. We discuss how this ambitious age requirement led to the selection of tens of thousands of red giants, and of thousands of main-sequence early F-type gravity-mode pulsators in order to deduce their internal rotation profile across stellar evolution. This asteroseismic observable will then be imported as key information into improved models of dwarfs and subgiants in the Milky Way as optimal modelling tools for ever better age-dating of the exoplanet hosts as the PLATO mission moves along. Additional calibrators and validators included in the {\tt scvPIC} are a few thousands of binaries, a few hundreds of legacy and benchmark stars, a few hundred photometrically stable stars, and six transiting brown dwarfs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_04042 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | The PLATO Science Calibration and Validation Plan: Targets for the First Long-pointing Field Zwintz, Konstanze Aerts, Conny Tkachenko, Andrew Cabrera, Juan Creevey, Orlagh Heller, Rene Jannsen, Nicholas Jiang, Chen Kochukhov, Oleg Lanza, Antonino Francesco Maxted, Pierre F. L. Messina, Sergio Miglio, Andrea Morel, Thierry Mosser, Benoiıt Ouazzani, Rhita Southworth, John van-Eiff, Matthias Ammler Audenaert, Jeroen Beck, Paul G. Belkacem, Kevin Birch, Aaron Bossini, Diego Bragaglia, Angela Briganti, Lorenzo Brown, David Börner, Anko Chiappini, Cristina Damiani, Cilia Gaulme, Patrick Huijse, Pablo Heise Heiter, Ulrike Helminiak, Krysztof G. Kliapets, Mykyta Lund, Mikkel N. Marrese, Paola Merle, Thibault Miller, Nicola Montalban, Josefina Palakkatharappil, Dinil Bose Paproth, Carsten Vazquez, Isabel Rebollido Scheller, Nena Sulis, Sophia Triaud, Amaury H. M. J. Valentini, Marica Vrard, Mathieu Deleuil, Magali Gizon, Laurent Heras, Ana M. Mas-Hesse, J. Miguel Osborn, Hugh Pagano, Isabella Piotto, Giampaolo Pollacco, Don Raggazoni, Roberto Ramsay, Gavin Rauer, Heike Udry, Stephane Solar and Stellar Astrophysics Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics In order to meet the science goals of the PLATO space mission, an extensive science calibration and validation plan has been designed. This paper describes this plan, as well as the methodology adopted to select the science calibration and validation stars that have entered its input catalogue. This is the so-called {\tt scvPIC}, which is part of the general PLATO Input Catalogue (PIC) for the first selected long pointing field in the Southern Hemisphere known as LOPS2. While many of PLATO's science requirements needed dedicated stars as calibrators as discussed here, its most stringent requirement is the delivery of the age of the host stars of exoplanetary systems with an accuracy better than 10\% for a G0V star of {\it V} = 10 mag, i.e. a nearby Sun-like star. This is presently not within reach for large populations of dwarfs and subgiants in the Milky Way as it requires the models of their stellar interiors to be improved. We discuss how this ambitious age requirement led to the selection of tens of thousands of red giants, and of thousands of main-sequence early F-type gravity-mode pulsators in order to deduce their internal rotation profile across stellar evolution. This asteroseismic observable will then be imported as key information into improved models of dwarfs and subgiants in the Milky Way as optimal modelling tools for ever better age-dating of the exoplanet hosts as the PLATO mission moves along. Additional calibrators and validators included in the {\tt scvPIC} are a few thousands of binaries, a few hundreds of legacy and benchmark stars, a few hundred photometrically stable stars, and six transiting brown dwarfs. |
| title | The PLATO Science Calibration and Validation Plan: Targets for the First Long-pointing Field |
| topic | Solar and Stellar Astrophysics Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2604.04042 |