SCOPE OF THE CONFERENCE
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This meeting - fourth in a decadal series of X-ray astronomy conferences held in Bologna - will focus on the contribution of current and past X-ray missions to our knowledge of the hot and energetic Universe, and highlight the results from the ESA and NASA flagships missions XMM-Newton and Chandra in the 20th anniversary of their operation. In the era of multi-messenger and transient astronomy, emphasis will be given to the synergy between observations of cosmic sources in X-rays and other wavelengths and also through gravitational waves. We plan to review the most significant results obtained in recent years and lay out the discovery space offered by future high-energy missions.

The main scientific issues that will be addressed are:
* Multi-messenger and transient astronomy
* Active Galactic Nuclei: accretion physics and evolution across cosmic time
* Compact and diffuse sources in galaxies and in the Galactic Center
* Hot and diffuse baryons
* The cosmic frontier: first black holes and proto-clusters
* Future missions

The list of Review, Invited and Solicited speakers is available at:
https://indico.ict.inaf.it/event/720/page/199-scientific-programme

FEES AND DEADLINES:
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EARLY REGISTRATION FEE (deadline April 1): 300 Euro
REGULAR REGISTRATION FEE (deadline June 30): 400 Euro
LATE REGISTRATION FEE (after June 30 and on site): 450 Euro

Reduced fees are foreseen for students (PhD, master degrees):
STUDENT (deadline June 30): 200 Euro

The Conference fee includes: access to all sessions, conference materials and kit, welcome reception on Sunday September 8, coffee breaks and lunches for the full 5 days of the conference.

We will be able to waive the registration fee for a limited number of participants (especially students, postdocs, and researchers traveling with limited available fundings). If you are interested in applying for the financial support, please contact xray2019@inaf.it for more info with a short description for the need of the funding.

Please notice that these deadlines hold also for those who pre-registered to the conference after the First circular.

REGISTRATION PROCESS:
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The registration consists in 2 steps:

1) REGISTRATION TO THE EVENT
Please fill out the form available here:
https://indico.ict.inaf.it/event/720/registrations/150/
which will be used to create the conference material (badges, certificates etc.)

2) PAYMENT OF THE FEES AND DEADLINES:
The Registration fee should be paid through the form available at the link:
http://spazifam.fondazionealmamater.unibo.it/SSL/RegEventi/Default.aspx?idevento=232

More details on the Registration payment are available at:
https://indico.ict.inaf.it/event/720/page/241-registration-fees-and-payment

ABSTRACT SUBMISSION (close on April 1st 2019, 18:00 ETC):
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Contributions, both Oral and Poster, are welcome.
All oral presentations (Review, Invited, Solicited and Contributed) will be held in plenary sessions.
We may be able to allocate ~60 oral contributed talks. Posters will be accepted without limit.

The page for Abstract submission is available at the link:
https://indico.ict.inaf.it/event/720/abstracts/

Please note that in order to submit the abstract for your contribution, an INDICO account is needed.
If you do not have an account yet, it can be easily created here:
https://indico.ict.inaf.it/register/

or just clicking "Submit New Abstract” (and then click on create an INDICO account).

When creating the INDICO account, please specify in the comments field that the request is for the X-RAY ASTRONOMY 2019 conference.
The account will be created within 24 hours, so we suggest to proceed with this step a few days in advance the proper abstract submission.

When submitting the abstract, please check the "Submission instructions" at the top of the editor window!

VENUE
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The workshop is being jointly organized by INAF OAS (Astrophysics and Space Science Observatory) and by the Physics and Astronomy Department (DIFA) of the University of Bologna, under the auspices of Bologna's Local Authorities.

The conference will be hosted by the newly established Bologna Astrophysics Campus within the CNR research area.
https://indico.ict.inaf.it/event/720/page/201-venue

The campus includes:
- INAF-Osservatorio di Astrofisica e Scienza dello Spazio (INAF-OAS).
- Department of Physics and Astronomy (Astrophysics sector) of the University of Bologna (DIFA-UNIBO).
- INAF-Istituto di Radioastronomia (INAF-IRA), hosting the Italian ALMA Regional Center (Italian ARC).
- Cerenkov Telescope Array (CTA) Headquarters.

Welcome cocktail and social dinner will take place in historical locations in the city center of Bologna.

VISA
******

If you need a VISA to travel to Italy, we will be able to provide a letter of invitation for the participation to the conference, upon request.
Please contact the the SOC chairs and the administrative staff:
Roberto Gilli (roberto.gilli@inaf.it)
Cristian Vignali (cristian.vignali@unibo.it)
Alessandro Vriz (a.vriz@fondazionealmamater.it)

For further information about the conference, abstract submission, and deadlines, please contact the organisers (xray2019@inaf.it) or visit the website:
https://indico.ict.inaf.it/e/XRAY2019

Looking forward to seeing you in Bologna!

Cristian Vignali and Roberto Gilli on behalf of the SOC
Marcella Brusa & Mauro Dadina on behalf of the LOC

Important infos and deadlines summary:
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- All lunches will be catered and will be included in the registration fee.
- A Welcome cocktail is foreseen on the evening of Sunday, September 8th
- The Conference Dinner (50 euro) will be held on Wednesday, September 11th at Palazzo Re Enzo
- There is no limitation to the number of participants, but if we reach up the Conference room capacity (~400 people) precedence will be given to those who registered first.

* Pre-registration open:
27 September 2018

* Second Announcement - Abstract submission and Early registration (300 euro) open:
30 January 2019

* Early Registration and Abstract submission deadline:
1 April 2019

* Third Announcement with Conference Program:
End of May 2019

* Regular Registration deadline (400 euro):
30 June 2019

* Final Announcement with final Logistics details:
1 September 2019

* Conference:
8-13 September 2019

Scientific Organizing Committee (SOC)
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Roberto Gilli (co-chair, INAF-OAS, Bologna, Italy)
Cristian Vignali (co-chair, DIFA-UNIBO, Bologna, Italy)

Franz Bauer (PUC, Santiago, Chile)
Laura Brenneman (CfA, Cambridge, USA)
Francisco Carrera (IFCA, Santander, Spain)
Monica Colpi (UniMIB, Milan, Italy)
Andrea Comastri (INAF-OAS, Bologna, Italy)
Alessandra De Rosa (INAF-IAPS, Rome, Italy)
Chris Done (Durham University, Durham, United Kingdom)
Dominique Eckert (ISDC, Geneve, Switzerland)
Alexis Finoguenov (MPE, Garching bei Muenchen, Germany)
Elena Gallo (University of Michigan, Ann Arbor, USA)
Poshak Gandhi (University of Southampton, Southampton, United Kingdom)
Ioannis Georgantopoulous (IoA, Athens, Greece)
Suvi Gezari (University of Maryland, College Park, USA)
Giancarlo Ghirlanda (INAF-OABrera, Milan, Italy)
Paola Grandi (INAF-OAS, Bologna, Italy)
Luis Ho (KIAA-PKU, Peking, China)
Andrew Ptak (NASA-GSFC, Greenbelt, USA)
Jacco Vink (University of Amsterdam, Amsterdam, The Netherlands)
Yoshihiro Ueda (Kyoto University, Kyoto, Japan)
Marta Volonteri (IAP, Paris, France)

Local Organizing Committee (LOC)
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Marcella Brusa (co-chair, DIFA-UNIBO, Bologna, Italy)
Mauro Dadina (co-chair, INAF-OAS, Bologna, Italy)

Massimo Cappi (INAF-OAS)
Deborah Costanzo (DIFA-UNIBO)
Quirino D'Amato (DIFA-UNIBO)
Myriam Gitti (DIFA-UNIBO)
Alessandro Ignesti (DIFA-UNIBO; INAF-IRA)
Giorgio Lanzuisi (INAF-OAS)
Angela Malizia (INAF-OAS)
Giulia Migliori (DIFA-UNIBO; INAF-IRA)
Riccardo Nanni (DIFA-UNIBO)
Niccolo' Parmiggiani (INAF-OAS)
Francesco Salvestrini (DIFA-UNIBO)
Manuela Spiga (INAF-OAS)
Alessandro Tacchini (INAF-OAS)
Eleonora Torresi (DIFA-UNIBO; INAF-OAS)