Info sobre ciencia complementaria con la misión PLATO
16 views
Skip to first unread message
J. Miguel Mas-Hesse
May 4, 2026, 9:48:58 AM (9 days ago) May 4
to SEA Anuncios
Hola,
como complemento a la información que os pasé hace unos días acerca de la posibilidad de solicitar tiempo abierto para ciencia complementaria con la misión PLATO (fecha límite: 21 de mayo), quiero resaltar las oportunidades que ofrece para estudios que nada tienen que ver con astrofísica estelar o exoplanetas. Concretamente os enlazo 2 artículos sobre variabilidad en AGN con datos de Kepler y TESS que os pueden resultar de interés para ver los problemas que se pueden atacar con PLATO:
+ The Kepler Light Curves of AGN: A Detailed Analysis
Krista Lynne Smith, Richard F. Mushotzky, Patricia T. Boyd, Matt Malkan, Steve B. Howell, and Dawn M. Gelino
We present a comprehensive analysis of 21 light curves of Type 1 active galactic nuclei (AGN) from the Kepler spacecraft [...] We present the light curves, power spectral density functions (PSDs), and flux histograms. The light curves display an astonishing variety of behaviors, many of which would
not be detected in ground-based studies, including switching between distinct flux levels. Six objects exhibit PSD flattening at characteristic timescales that roughly correlate with black hole mass. These timescales are consistent with orbital timescales or free-fall accretion timescales.
https://iopscience.iop.org/article/10.3847/1538-4357/aab88d
+ Optical Variability of the Dwarf AGN NGC 4395 from the Transiting Exoplanet Survey Satellite
Colin J. Burke, Yue Shen, Yu-Ching Chen, Simone Scaringi, Claude-Andre Faucher-Giguere, Xin Liu, and Qian Yang
We present optical light curves from the Transiting Exoplanet Survey Satellite (TESS) for the archetypical dwarf active galactic nucleus (AGN) in the nearby galaxy NGC 4395 hosting a ∼10^5Me supermassive black hole (SMBH). Significant variability is detected on timescales from weeks to hours before reaching the background noise level. [...] This work demonstrates the power of TESS light curves in identifying low-mass accreting SMBHs with optical variability, and a potential global
tDRW - MBH relation that can be used to estimate SMBH masses with optical variability measurements.
https://iopscience.iop.org/article/10.3847/1538-4357/aba3ce
PLATO debería producir datos de mucha mejor calidad, con hasta 2 años de cobertura casi ininterrumpida, y con una corrección de las tendencias instrumentales mucho más completa. El tamaño angular de los píxeles de PLATO es mayor que en el caso de Kepler, pero menor si se compara con TESS.
Saludos
Miguel Mas
como complemento a la información que os pasé hace unos días acerca de la posibilidad de solicitar tiempo abierto para ciencia complementaria con la misión PLATO (fecha límite: 21 de mayo), quiero resaltar las oportunidades que ofrece para estudios que nada tienen que ver con astrofísica estelar o exoplanetas. Concretamente os enlazo 2 artículos sobre variabilidad en AGN con datos de Kepler y TESS que os pueden resultar de interés para ver los problemas que se pueden atacar con PLATO:
+ The Kepler Light Curves of AGN: A Detailed Analysis
Krista Lynne Smith, Richard F. Mushotzky, Patricia T. Boyd, Matt Malkan, Steve B. Howell, and Dawn M. Gelino
We present a comprehensive analysis of 21 light curves of Type 1 active galactic nuclei (AGN) from the Kepler spacecraft [...] We present the light curves, power spectral density functions (PSDs), and flux histograms. The light curves display an astonishing variety of behaviors, many of which would
not be detected in ground-based studies, including switching between distinct flux levels. Six objects exhibit PSD flattening at characteristic timescales that roughly correlate with black hole mass. These timescales are consistent with orbital timescales or free-fall accretion timescales.
https://iopscience.iop.org/article/10.3847/1538-4357/aab88d
+ Optical Variability of the Dwarf AGN NGC 4395 from the Transiting Exoplanet Survey Satellite
Colin J. Burke, Yue Shen, Yu-Ching Chen, Simone Scaringi, Claude-Andre Faucher-Giguere, Xin Liu, and Qian Yang
We present optical light curves from the Transiting Exoplanet Survey Satellite (TESS) for the archetypical dwarf active galactic nucleus (AGN) in the nearby galaxy NGC 4395 hosting a ∼10^5Me supermassive black hole (SMBH). Significant variability is detected on timescales from weeks to hours before reaching the background noise level. [...] This work demonstrates the power of TESS light curves in identifying low-mass accreting SMBHs with optical variability, and a potential global
tDRW - MBH relation that can be used to estimate SMBH masses with optical variability measurements.
https://iopscience.iop.org/article/10.3847/1538-4357/aba3ce
PLATO debería producir datos de mucha mejor calidad, con hasta 2 años de cobertura casi ininterrumpida, y con una corrección de las tendencias instrumentales mucho más completa. El tamaño angular de los píxeles de PLATO es mayor que en el caso de Kepler, pero menor si se compara con TESS.
Saludos
Miguel Mas
-- ---------------------------------------------------------- J. Miguel Mas Hesse Head of Astrophysics Department Centro de Astrobiologia (CSIC-INTA) e-mail: m...@cab.inta-csic.es phone +34 918131196 ----------------------------------------------------------
Reply all
Reply to author
Forward
0 new messages