The Athena Multi-messenger Workshop

The Athena Multi-messenger and High Energy Astrophysics Synergy
 Workshop (AMHEAS)

November  27 - 29, 2018, Alicante, Spain

Photo credit: Diario Información


The workshop focusses on identifying and developing potential scientific synergies between the Athena X-ray observatory mission (ESA) and Gravitational Waves, neutrinos, high energy and Gamma Ray Burst (GW/v’s/HE/GRB) facilities that will be operational contemporary to Athena. The goal is to produce a White Paper that should address the scientific topics where the synergetic use of Athena and the key multimessenger facilities operating at the end of this decade will result in a scientific added value.

The scope of the meeting is to:

  • a)    Review the scientific topics and identify the workplan needed to consolidate and advance the scientific case. Identify additional experts if needs be.
  • b)    Outline the operational scenario to successfully implement the synergy science goals  with the performances predicted at the end of this decade .  Identify the needs to access or get inputs from Athena to achieve a science goal or drive an observation from a given facility and the needs to get inputs from or access that facility to achieve a science goal or drive Athena observations.
  • c)    Define the Table of Content of the WP and plan for its preparation
  • d)    Outline a multi-facility synergy case for relevant science topics


Registration closed.

List of participants

D. Barret            Athena X-IFU PI
D. Burrows         Athena expert for transients (A/Theseus synergy)
F. Carrera          Athena Community Office: support
M. Colpi             LISA representative
D. Dornic           KM3NET representative
A. Fabian          Athena representative for A/LISA synergy
M. Guainazzi     Athena Study Scientist
P. McNamara      LISA Study Scientist
P’. O’Brien         Athena & Theseus representative
J. Osborne         Theseus expert for A/Theseus synergy
S. Martinez        Athena Community Office: support
P. Padovani        Expert for v’s synergy
L. Piro                Chair                                   
N. Tanvir            LISA representative
J.M. Torrejon      LOC organizer (AHEAD)
E. Troja             AThena representative for ground-based GW synergy
J. Vink               Athena representative for v’s and CTA synergy
D. Nichols          LIGO/VIRGO

M. Ahlers           IceCube

A. Coleiro          KM3NET
A. Sesana          SMBBH
E. Bozzo            Galactic sources               

Not coming but involved in the WP:
L. Amati             Theseus representative
A. Rau               Athena expert for transients (A/Theseus synergy)
E. Rossi             LISA expert

R. Mignani         Athena expert for v’s and CTA synergy

P. Jonker            Athena representative for ground-based GW synergy



Tuesday 27/11  14.00-18.00 Session 1: Scope of the meeting/ Athena GW (ground) session
14:00-14:15 Welcome : J. M. Torrejon
14:15-14:30 Introduction and scope of the meeting : L. Piro
14:30-15:00 Athena science and capabilities relevant to Multimessenger: M. Guainazzi
15:00- 15:30 LIGO/Virgo and GW ground facilities: science and capabilities for EM follow-up: David Nichols
15:30-16:00 Athena and  NS-NS/ NS-BH GW counterparts : E. Troja
16:00-16:30 coffee break (30 min)
16:30-17:00 other science cases/topics potentially relevant to EM follow-up, w.p.r.t  X-rays
17:00- 18:00 discussion: operational scenario, consolidated list of topics, additional expertize, define the workplan

Possible topics/sources:
NS- merger (populations studies, new X-ray components with Athena, orphan afterglows with Athena)
BH-NS mergers
BH-BH merger (Primordial BH? Significant constituent of DM? any significant prediction on EM counterpart?)
CC supernovae (if asymmetric)


Wednesday 28/11 9.00-13.00 Session 2: Athena-LISA
9:00-9:30 LISA science and capabilities relevant to EM follow-up : P. Mc Namara
9:30-10:00 SMBBH case: predictions on the EM counterpart from optical to X-rays: M. Colpi
10:00-10:30 SMBBH: observational strategies for identifying counterparts (vs the variable sky): N. Tanvir
10:30-11:00 SMBBH and other science cases/topics potentially relevant to EM follow-up, w.p.r.t  X-rays : A. Sesana  
11:00-11.30 Coffee break
11:30-12:00 Discussion on SMBBH A-L synergy: A. Fabian
12:00- 13:00 Discussion: operational scenario, consolidated list of topics, additional expertize, define the workplan
Possible topics/sources:
SMBH mergers: X-ray emission from AD.  if/when the AD forms. Error box/rates/X-ray fluxes. Would X-ray localization more effective that optical/IR?
WD-WD and other galactic binaries during spiral in
TDE-like accretion of stars on BH  

13:00-14:00 Lunch

14.00-18.00 Session 3: Athena- Theseus and the transient sky
14:00-14:30 -    Theseus capabilities and science relevant to Athena : P O’Brien
14:30-15:00 -    High-z GRBs: Athena and Theseus : N. Tanvir
15:00-15:30 -    WHIM with GRBs : L. Piro
15:30-16:00 -    The transient sky with Athena/WFI (and Theseus) : D. Burrows
16:00-16:30 -    Coffee break
16:30-17:00 -    Galactic science : E. Bozzo
17:00-17:30 -    Operational scenario : M. Guainazzi
17:30-18:00 -    Discussion: consolidate list of topics and define the workplan
Possible topics/sources:
Flare stars
Athena providing triggers for Theseus Infrared telescope for follow-up of transients found in the WFI.
Cross Calibration of Theseus/Lobster instrument on Athena sources.
Simultaneous Athena/Theseus for broad band observations of relatively bright sources

20.30 Workshop dinner

Thursday 29/11: 9.00- 13.00 Session 4: Athena & v’s (KM3NET, ICECUBE), & CTA

9:00-9:30   Acceleration sites in the Universe: v’s, VHE and X-ray synergy: J. Vink
9:30- 10:00 v’s from ICECUBE and multimessenger synergy with X-rays: M. Ahlers
10:00- 10:30 v’s from KM3NET and multimessenger synergy with X-rays: A. Coleiro
10:30-11:00 v’s from a blazars jet: P. Padovani
11.00-11:30 Coffee break
11:30-12:00 other science cases/topics
12:00-13:00 discussion: consolidate list of topics, addnl expertize and workplan
Possible topics/sources:
-    Blazars
-    SNR
-    Sne (v’s from CC)
-    Magnetars
-    TDE
-    PWN
-    GRBs
-    Clusters as CR reservoirs

13:00-14:00 Lunch

29/11 14.00-15.30: Session 5: multi-mission synergies; plan for WP
14:00 - 14:30 Synergies across the board (30 min)
14:30 - 15:15 WP TOC and workplan (45 min)
15:15: 15: 30 Conclusions (15 min)



Network connection

Network connection will be provided via eduroam. Please install the required certificates in your computers. If you are not able to install eduroam let us know well in advance.


University of Alicante Campus, San Vicente del Raspeig, Building "Germán Bernácer", Main Lecture room (downstairs).

The most convenient way to reach the campus, from the Alicante Airport, is by Taxi (around 15 min, 20-25 Euro, licensed taxis line up just at the exit door). The Alicante Airport is served by a number of companies with direct flights from many european cities.


Coffe breaks and lunch will be provided at the venue.

Wednesday 28, Workshop dinner at the Ocean Race Restaurant



Alicante has a wide offer of hotels. We can recommend the following:

The Villa Universitaria is conveniently located at walking distance (12 min) from the Workshop venue. Ask for the Suites. Although it is an student's lodging, its Suites are used as well by many senior visitors. Offers meal service. 

Hotel Eurostars Lucentum. It is located in Alicante downtown, in front of the old food Central Marquet. The University of Alicante Campus can be reached by the Tram (27 min), using Line 2, with a train every 15 minutes or by Taxi (15 min, 15 Euro).

Hotel Porta Maris. Next to the sea. To reach University of Alicante Campus there are two options: a) walk to Hotel Eurostars Lucentum and then take the Tram (as above), or b) take a taxi.

Financial support

A limited amount of money is available to support travel and lodging expenses, upon request.


J. M. Torrejón (Chair), C. Ordoñez, G. Bernabéu, J.J. Rodes-Roca, M. Martinez-Chicharro



For any question regarding logistics, please write to  with the subject AMHEAS