XMM-Newton 2018 Science Workshop
Time-Domain Astronomy: A High Energy View13 - 15 June 2018
European Space Astronomy Centre (ESAC)
Villafranca del Castillo
Further details will be posted in due time.
Many astronomical objects are time variable. Time variability encodes key information about the source physics; this information is complementary to that in energy spectra and is essential for our complete understanding of the phenomena involved. Most X-ray emitting objects show variability whose timescales can span many orders of magnitudes, from decades down to milliseconds depending on the source. Studying X-ray variability, we can probe the physics of a large number of phenomena in a plethora of different astrophysical objects, from large scale changes of galactic environments down to the direct environment of compact accretion objects. Objects studied include solar system objects and stars, novae and supernovae, pulsars and magnetars, Galactic black holes and supermassive black holes in the centre of active galactic nuclei.
With the upcoming multi-wavelength time-domain monitoring facilities such as Gaia, LSST, ASAS, TESS, PanSTARRS in the optical band, or SKA in the radio band, to name a few, an enormous potential for multi-wavelength studies will soon be available. The workshop aims to summarise the current understanding of the variability in high energy astrophysical objects in order to explore the potential synergy with other (new) time-domain facilities and to foster cooperation between observers in different energy bands.
- Statistics, Methodology, and Tools
- Variable Multiwavelength Emitters and Multiwavelength Facilities
- Timing from Accretion and Ejection Phenomena
- Triggers of Variability: Magnetism, Shocks, Companions
- Explosive Astrophysics/Fast Astrophysics
Outline of WS
Statistics, Methodology, and ToolsQuestions:
- Are we prepared for the big surveys?
- What region of parameter space requires new methodology? (e.g., spectra-timing, low count rates)
- What can we learn from techniques used in other fields?
- Characterization of non-periodic variability
- Machine learning
- Statistical techniques in time series analysis: characterization of non-periodic variability and machine learning
- Statistical techniques in time series analysis: machine learning and big surveys
Variable Multi Wavelength Emitters and Multiwavelength FacilitiesQuestions:
- Challenges of strictly simultaneous coordination?
- What are the regions of parameter space opened up by new facilities?
- How does polarimetry help?
- How can we ensure continued monitoring the optical and X-ray sky?
- Current and future MW campaigns: The big picture
- Gaia's view of transient sources
- Multiwavelength observations of accretion/ejection in supermassive black holes
Timing from Accretion and Ejection PhenomenaQuestions:
- Is accretion physics truly scale-invariant?
- How can we probe the disc/jet connection?
- How are accretion winds and jets (dis)connected?
- What key theoretical developments are required to understand the various accretion physics related phenomena?
- X-ray binaries
- Young stars
- Theory of accretion/ejection
- Modeling young stellar objects and their variability
- Accretion, ejection and variability of CVs and novae
- Timing and reflection in AGN and XRBs
- The variability of Sgr A*
- Variability in AGN surveys
- Variability in deep fields
Triggers of Variability: Magnetism, Shocks, CompanionsQuestions:
- How can polarimetry help?
- What is the physics of shocks?
- How does variability affect planets?
- Young stars
- Massive stars
- Shocks in stellar winds
- Magnetized neutron stars
- X-ray/gamma-ray connections
- Stellar variability
- Eta Car's variability
- Planet interaction
- Magnetized neutron stars: spectral-timing variability
Explosive Astrophysics/Fast AstrophysicsQuestions:
- What are the requirements of multi-messenger astrophysics?
- Is the GRB/SN connection settled?
- X-ray bursts
- Fast radio bursts
- Timing and dust scattering halos
- Tidal disruption events
- Fast radio bursts
- Gamma-ray bursts
- GW follow up: physics and multiwavelength variability
Scientific Organising Committee
|Matteo Bachetti||Osservatorio Astronomico di Cagliari, Selargius, Italy|
|Enrico Bozzo||University of Geneva, Versoix, Switzerland|
|Guillaume Dubus||University Grenoble Alpes, France|
|Phil Evans||University Leicester, United Kingdom|
|Poshak Gandhi||University of Southampton, United Kingdom|
|Margarita Hernanz||Institute of Space Sciences, Barcelona, Spain|
|Sera Markoff||University of Amsterdam, The Netherlands|
|Alex Markowitz||Nicolaus Copernicus Astronomical Center, Poland|
|Yaël Nazé||Université de Liège, Belgium|
|Francesca Panessa||Istituto di Astrofisica e Planetologia Spaziali di Roma, Italy|
|Richard Saxton||XMM-Newton Science Operations Centre, Madrid, Spain|
|Norbert Schartel (co-chair)||XMM-Newton Science Operations Centre, Madrid, Spain|
|Lara Sidoli||Istituto di Astrofisica Spaziale e Fisica Cosmica, Milano, Italy|
|Beate Stelzer||University of Tübingen, Germany & |
Osservatorio Astronomico di Palermo, Italy
|John Tomsick||University of California, Berkeley, USA|
|Peggy Varniere||University Paris Diderot, France|
|Joern Wilms (chair)||University Erlangen-Nürnberg, Germany|
|Andreas Zezas||University of Crete, Greece|