3-D spectroscopy from sub-mm to X-ray: the promise of Athena in the 2030s multiwavelength context

3-D spectroscopy from sub-mm to X-ray: the promise of Athena in the 2030s multiwavelength context

The 2019 EWASS Special Session 31 will bring together theoreticians, observers and data analysis experts on 3-D spectral data to review the potential of the synergies between the Athena X-IFU and 3-D spectroscopic facility from the sub-mm to the optical band. It will be held on 28th of June.

Aims and scope

In the early 2030s, innovative Integral Field Units (IFUs) will operate in the infrared and optical from large ground-based facilities (e.g. HARMONI@ELT). In space, the European Space Agency L-class X-ray observatory AthenaAthena will carry the first IFU operated in X-rays combining high spectral resolution with a spatial resolution (~5 arcseconds) comparable to IFUs in other wavelengths. Furthermore, the continuous operations of the Atacama Large Millimiter Array (ALMA) extends the real of 3-D spectroscopy to the millimiter and sub-millimiter bands.

The simultaneous availability of IFUs in the "traditional" optical/IR and in the high-energy domain will allow combined studies of galaxy dynamics and star formation at its cosmological peak with the opening of a potentially revolutionary observational window to study phenomena as diverse as the Warm-Hot Intergalactic Medium gas accretion onto the core of galaxy clusters at redshift up to 2, the interplay of accretion and ejection in Active Galactic Nuclei, and gas dynamics in the central region of galaxies, just to mention a few. Optical/NIR IFUs will also be key to identify accreting super-massive black holes down to the Epoch of Reionization that will be unveiled by deep X-ray surveys with the Athena Wide Field Imager (WFI).


The program (download in PDF format here) of the Special Session is structured around the following three main topics:

  • Review the science objectives that will require joint IFU observations in the early 30s, considering what is currently addressed by existing facilities (e.g. VLT/MUSE, and ALMA), and emphasizing the unique advances permitted by complementary X-ray IFU data.
  • Review the requirements of the IFUs planned to operate in the early 30s in comparison with the needs to achieve the science objectives identified above, including requirements deriving from the rapidly developing field of time domain astronomy.
  • Review the needs in terms of theoretical modeling, as well as data analysis tools to fully exploit joint multi-wavelength 3-D spectroscopic observations.

Invited speakers

  • Francisca Kemper (ESO)
  • Roberto Maiolino (University of Cambridge)
  • Johan Richards (University of Lyon)
  • Mathieu Puech (Observatory of Paris' Meudon)
  • Elisa Costantini (SRON)
  • Marcella Brusa (University of Bologna)
  • Massimo Gaspari (Princeton University)
  • Lisa Kewley (Australia National University)

Scientific organisers

Matteo Guainazzi (ESA) and Didier Barret (IRAP) with the support of the Athena community office.

Science Organizing Committee:

  • Roland Bacon (University of Lyon)
  • Xavier Barcons (ESO)
  • Didier Barret (IRAP)
  • Françoise Combes (Observatory of Paris)
  • Thierry Contini (IRAP)
  • María Díaz-Trigo (ESO)
  • Matteo Guainazzi (ESA)
  • Evanthia Hatziminaoglou (ESO)
  • Silvia Martínez-Núñez (IFCA)
  • Mara Salvato (MPE)
  • Aurora Simionescu (SRON)
  • Niranjan Thatte (University of Oxford)

For any information on the scientific program of this session, please contact the organisers.  

Online presentations:

The presentations of this special session are open access for the community under the Athena document repository (see here).

3-D spectroscopy from sub-mm to X-ray: the promise of Athena in the 2030s multiwavelength context