Comparison between theoretical models and IXPE observational data
The Padua unit has provided a fundamental contribution to the physical interpretation of persistent magnetar emission by developing and refining the theoretical models necessary to decode the data collected by the IXPE satellite. Through a systematic comparison between radiative transfer models in ultra-strong magnetic fields and polarimetric observations, the unit has enabled the mapping of the geometry and physical properties of both thermal and non-thermal emissions from these extreme objects with unprecedented precision.
Development of the next-generation eXTP mission
The expertise gained in the analysis of current data established the Padua unit as a strategic partner within the Science Team of the upcoming eXTP (enhanced X-ray Timing and Polarimetry) mission, led by the Chinese Academy of Sciences. The members of the Padua group are actively involved in defining the scientific requirements and simulating the performance of the onboard polarimeters. This commitment ensures that the mission, scheduled for launch in 2030, will surpass current limitations, opening new frontiers in the study of matter under conditions of extreme gravity and magnetism.
Synergy between thoeretical modeling and mission requirements
Distinct from pure instrumental development, the Padua approach is characterized by its ability to match theoretical modeling with the technical requirements of future observatories. The results obtained during the IXPE operational phase have been instrumental in guiding target selection and optimizing observational strategies for the coming decade, consolidating the unit’s position as a global reference point for X-ray polarimetry science.
| Name & Surname | Role | Effort (PM) |
|---|---|---|
| Dr. Roberto Taverna | Tenure-track researcher - PI | 10.0 |
| Prof. Roberto Turolla | Full Professor | 6.0 |
| Dr. Lorenzo Marra | Research fellow | 12.0 |
| Proposer | Notes |
|---|---|
| Roberto Taverna | An IXPE 700 ks observation of the persistent magnetar 1E 1841-045 following a previous observation performed in 2024 to better characterize the hard X-ray power-law tail. Observation approved for the General Observing program 3 of IXPE. |
| Roberto Turolla | An XMM-Newton 45 ks DDT observation of the persistent magnetar SGR 1806-20 to complement with higher quality spectroscopic data the IXPE observation of the same source. |
| Event | Date | Presenter | Contribution |
|---|---|---|---|
| ASI School on IXPE data analysis for general observers, Rome (I) | 19-23 February 2024 | Roberto Taverna | Invited lecture |
| A broadband excursus through stellar afterlife, Firenze (I) | 5-7 June 2024 | Roberto Turolla | Invited talk |
| 17th Marcel Grossmann meeting, Pescara (I) | 7-12 July 2024 | Roberto Taverna | Invited talk |
| International X-ray Polarimetry Symposium, Huntsville (USA) | 16-19 September 2024 | Roberto Taverna | Invited talk |
| XIII Congresso Nazionale Oggetti Compatti, Alghero (I) | 23-26 September 2024 | Roberto Taverna | Contributed talk |
| Frontiers in X-ray polarimetry Academy, L'Aquila (I) | 7-11 April 2025 | Roberto Taverna | Invited lecture |
| Multifrequency Behaviour of High Energy Cosmic Sources workshop, Palermo (I) | 9-14 June 2025 | Roberto Taverna | Invited talk |
| ISSI Team workshop 25-657 - Polarimetric Insight into Extreme Magnetism, Bern (CH) | 9-13 February 2026 | Roberto Taverna | Invited talk |
| ISSI Team workshop 25-657 - Polarimetric Insight into Extreme Magnetism, Bern (CH) | 9-13 February 2026 | Roberto Turolla | Invited talk |