Scheda EHT FINAL




Informazioni generali

Event Horizon Telescope

EHT

Programma

Progetto

Programma

Infrastruttura Internazionale

RSN4

RSN1

RSN5

Attività: In Itinere; Data inizio: 2018; Data fine: 2030

kazi.rygl kazi.rygl@inaf.it

Lo scopo principale della collaborazione Event Horizon Telescope (EHT) consiste nello studio della fisica dei buchi neri attraverso l'imaging diretto su scale di alcuni raggi gravitazionali. Questo obiettivo richiede osservazioni effettuate da una rete mondiale di antenne mm-VLBI, di cui ALMA è la componente più sensibile. I buchi neri supermassicci (SMBHs) M87* e Sgr A* sono i due principali obiettivi delle osservazioni giacche possiedono ombre con le più estese dimensioni angolari previste. Oltre alla misura dell'ombra, anche le proprietà di variabilità e polarizzazione del plasma che circonda il buco nero sono fondamentali per comprendere la fisica (e’ l’accrescimento) del SMBH. Per M87* e Sgr A*, simultanee  campagne multifrequenza sono condotte per realizzare questo tipo di analisi.

Understanding astrophysical black holes through direct imaging on scales of a few gravitational radii is the primary goal of the Event Horizon Telescope (EHT). It can only be achieved by a world-wide network of mm-VLBI antennas, of which the most sensitive component is phased ALMA. The two main EHT targets, based on their predicted shadow size, are the supermassive black holes M87* and Sgr A*. In addition to the measurement of the shadow size and shape, also the variability and polarisation properties of the plasma surrounding the black hole are observed which can constrain the accretion properties of the super massive black hole. For M87* and Sgr A* EHT simultaneous multi-wavelength campaigns are conducted to better constrain the black hole physics.

Galassie, AGN e loro evoluzione

Fisica degli oggetti compatti galattici ed extragalattici

Fenomeni non termici, raggi cosmici e astroparticelle

Radiazione gravitazionale e test di gravitazione

Tecnologie per osservazioni da Terra

Infrastrutture da Terra (utilizzo)

Infrastrutture da Terra (sviluppo/operazioni)

Comunicazione, Didattica, Divulgazione


Team Summary

15. Personale INAF coinvolto
Numero di partecipanti INAF al progetto: 6
Struttura Nfte N0 TI 2023 TI 2024 TI 2025 TD 2023 TD 2024 TD 2025 Nex Extra
IRA BOLOGNA 4 0 1.00 1.10 1.10 0 0 0 1 0.10
Totali 4 0 1.00 1.10 1.10 0.00 0.00 0.00 1 0.10
16. Personale Associato INAF coinvolto
Numero di partecipanti Associati INAF: 4
# Struttura TI 2023 TI 2024 TI 2025 TD 2023 TD 2024 TD 2025 Extra
1 Dipartimento di Fisica - Università di Trieste 0 0 0 0.00 0.00 0.00 0.00
2 Instituto de Astrofísica de Andalucía-CSIC 0 0 0 0.20 0.20 0.20 0.00
3 Universita di Napoli/INFN 0.20 0.20 0.20 0 0 0 0.00
4 Universita di Cagliari 0.40 0.40 0.40 0 0 0 0.00
Totali 0.60 0.60 0.60 0.20 0.20 0.20 0.00

Fondi a sostegno

21. Totale fondi a disposizione (dato aggregato, k€)
Certi 2023 Certi 2024 Certi 2025 Presunti 2023 Presunti 2024 Presunti 2025
0.0 0.0 0 0.0 0.0 0

Produzione scientifica e tecnologica

22. Produzione scientifica e tecnologica - Highlights
# DOI Descrizione Azione
1 10.3847/2041-8213/ab0ec7 First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole, Event Horizon Telescope Collaboration et al., 2019, The Astrophysical Journal Letters, Volume 875, Issue 1, article id. L1, 17 pp.
2 10.1051/0004-6361/201935181 rPICARD: A CASA-based calibration pipeline for VLBI data. Calibration and imaging of 7 mm VLBA observations of the AGN jet in M 87, Janssen, Goddi, van Bemmel et al., 2019, Astronomy & Astrophysics, Volume 626, id.A75, 20 pp.
3 10.3847/2041-8213/abe71d First M87 Event Horizon Telescope Results. VII. Polarization of the Ring, Event Horizon Telescope Collaboration et al., 2021, The Astrophysical Journal Letters, Volume 910, Issue 1, id.L12, 48 pp.
4 10.3847/2041-8213/abee6a Polarimetric Properties of Event Horizon Telescope Targets from ALMA, Goddi, Marti-Vidal, Messias et al., 2021, The Astrophysical Journal Letters, Volume 910, Issue 1, id.L14, 54 pp.
5 3847/2041-8213/abef71 Broadband Multi-wavelength Properties of M87 during the 2017 Event Horizon Telescope Campaign, EHT MWL Science Working Group et al., 2021, The Astrophysical Journal Letters, Volume 911, id.L11, 43 pp.
6 10.3847/2041-8213/ab0c57 First M87 Event Horizon Telescope Results. III. Data Processing and Calibration, Event Horizon Telescope Collaboration et al., 2019, The Astrophysical Journal Letters, Volume 875, Issue 1, article id. L3, 32 pp.
7 10.1038/s41550-021-01417-w Event Horizon Telescope observations of the jet launching and collimation in Centaurus A, Janssen et al., 2019, Nature Astronomy, Volume 5, p. 1017-1028
8 10.3847/2041-8213/ac6674 First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way, Event Horizon Telescope Collaboration et al., 2019, The Astrophysical Journal Letters, Volume 930, Issue 2, id.L12, 21 pp.
9 10.3847/2041-8213/ac6756 First Sagittarius A* Event Horizon Telescope Results. VI. Testing the Black Hole Metric, Event Horizon Telescope Collaboration et al., The Astrophysical Journal Letters, Volume 930, Issue 2, id.L17, 44 pp.
10 10.3847/2041-8213/ac6428 Millimeter Light Curves of Sagittarius A* Observed during the 2017 Event Horizon Telescope Campaign, Wielgus et al., The Astrophysical Journal Letters, Volume 930, Issue 2, id.L19, 32 pp.



Informazioni Pubbliche

Black hole physics; Active galactic nuclei; Plasma Astrophysics; Radio Jets; Gravitation; Relativity; Very long baseline interferometry; Interstellar medium; Time domain astronomy; Radio astronomy; X-ray astronomy; Gamma-ray astronomy. Schede connected to this scheda: VLBI, PMBr, MUTE SORCERER, ARC-It (ARC-It-0). <br><br>

<p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;" id="docs-internal-guid-9f4add62-7fff-2740-1d3a-cee4d91685bb"><span style="font-size:11pt;font-family:Arial;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">Lico is part of the EHT Management Team in the role of Secretary and Information-Technology officer and is one of the coordinators of the AGN working group. Within the Imaging WG, Lico leads the antenna gains and parameter survey teams.&nbsp; Liuzzo became a Guest member of the EHT Board in March 2022. De Laurentis is vice EHT Project Scientist and has been the coordinator of the Gravitational Physics WG within the EHT. Marchili is the PI of the INAF radio telescope blazar monitoring programme (scheda “Programma monitoraggio blazar nel radio”). Goddi is the coordinator of the Time-Domain WG within the EHT and has been the BHC Project scientist from 2014 till the end of the ERC project in 2021.</span></p><span style="font-size:11pt;font-family:Arial;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">Principe is leading the analysis of the MeV/GeV emission and is the coordinator for</span><span style="font-size:13pt;font-family:Arial;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;"> </span><span style="font-size:11pt;font-family:Arial;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">the MWL paper on M87-2018</span><span style="font-size:13pt;font-family:Arial;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">.</span><span style="font-size:11pt;font-family:Arial;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;"> Giroletti has led the cm-wavelength VLBI (with Kravchenko, formerly at INAF-IRA) for the 2017 M87 MWL campaign.</span>

EHT; ALMA; SMA; EVN; GMVA; VLBA; EAVN; VERA; KVN; HSA; Fermi LAT; HESS; VERITAS; MAGIC; HST; Swift; Chandra; NuSTAR


15. Team members, Informazioni generali


15. Personale INAF coinvolto

# Nome E-mail Struttura TI Qualifica Ruolo nel Progetto FTE Impegnate (2023/2024/2025) FTE Presunte (2023/2024/2025) Extra
1 nicola.marchili n.marchili@ira.inaf.it IRA BOLOGNA Y RICERCATORE Time Domain WG, Parameter Definition WG, Variability expert X X X X X X X OK
2 elisabetta.liuzzo e.liuzzo@ira.inaf.it IRA BOLOGNA Y RICERCATORE Calibration and AGN WG, EHT Board Guest member X X X X X X X OK
3 kazi.rygl kazi.rygl@inaf.it IRA BOLOGNA Y RICERCATORE Publication WG, Calibration WG, phased-ALMA QA2 X X X X X X X OK
4 marcello.giroletti marcello.giroletti@inaf.it IRA BOLOGNA Y RICERCATORE Osservazioni MWL; EVN, VLBA X X X X X X X OK
5 jan.brand brand@ira.inaf.it IRA BOLOGNA Y PRIMO RICERCATORE BHC coordinator for INAF-IRA X X X X X X X OK
6 marcella.massardi massardi@ira.inaf.it IRA BOLOGNA Y RICERCATORE Pipeline testing X X X X X X X OK

16. Personale Associato INAF coinvolto

# Nome E-mail Struttura TI Qualifica Ruolo nel Progetto FTE Impegnate (2023/2024/2025) FTE Presunte (2023/2024/2025) Extra
1 giacomo.principe giacomo.principe@inaf.it Dipartimento di Fisica - Università di Trieste N Post Doc Osservazioni MWL; Fermi-LAT [0, 0, 0] [0.0, -1.0, -1.0] 0.0
2 rocco.lico rocco.lico@inaf.it Instituto de Astrofísica de Andalucía-CSIC N Post Doc Imaging, Polarimetry and AGN WG, EHT Secretary [0.2, 0.2, 0.2] [-1.0, -1.0, -1.0] -1.0
3 mariafelicia.delaurentis mariafelicia.delaurentis@unina.it Universita di Napoli/INFN Y RICERCATORE Coordinatore Gravitational Physics WG, vice Project Scientist EHT [0.2, 0.2, 0.2] [-1.0, -1.0, -1.0] -1.0
4 ciriaco.goddi cgoddi@dsf.unica.it Universita di Cagliari Y RICERCATORE Expert phased ALMA, Correlation, Calibration, Polarization and AGN WGs [0.4, 0.4, 0.4] [-1.0, -1.0, -1.0] -1.0

21. Fondi a Sostegno Iniziativa

INAF-IRA received some funding from the BlackHoleCam ERC from 2018 to 2021, with the main goal to work on the development and testing of the rPICARD CASA pipeline to reduce EHT (and also more generic VLBI) data. At this moment, there are still ca. 41.5 kEuro from this concluded project available in our F.O. (1.05.02.39) of which ca. 6 kEuro have been booked for near future travel and equipment purchase.


Tabella fondi:

# Provenienza Certi 2023 (k€) Certi 2024 (k€) Certi 2025 (k€) Presun. 2023 (k€) Presun. 2024 (k€) Presun. 2025 (k€) Totale Certi (k€) Totale Presunti (k€)
1 1.05.02.39 0 0 None 0 0 None 0 0


Tabella fondi Astrofisica Fondamentale e PNRR:
# Provenienza Fondi 2023 (€) Fondi 2024 (€) Fondi 2025 (€)