BEGIN:VCALENDAR PRODID:-//Microsoft Corporation//Outlook 16.0 MIMEDIR//EN VERSION:2.0 METHOD:REQUEST X-MS-OLK-FORCEINSPECTOROPEN:TRUE BEGIN:VTIMEZONE TZID:W. Europe Standard Time BEGIN:STANDARD DTSTART:16011028T030000 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10 TZOFFSETFROM:+0200 TZOFFSETTO:+0100 END:STANDARD BEGIN:DAYLIGHT DTSTART:16010325T020000 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3 TZOFFSETFROM:+0100 TZOFFSETTO:+0200 END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT CLASS:PUBLIC CREATED:20241011T121540Z DESCRIPTION:Wednesday\, October 23\n \nSession 7: Radio-Gamma extragalactic results \n \nConvenor: Francesca Panessa (INAF\, IAPS\, Rome)\n \n9:30 Ga briele Bruni …………………………………………………… ……………………………………………………………… ……………………………. Extra-galactic jets in the high energy sky\nINAF\, IAPS\, Rome\n \nThe advent of new generation radio telescopes is opening new possibilities on the classification and study of extragalac tic high-energy sources\, specially the underrepresented ones like radio g alaxies. Among these\, Giant Radio Galaxies (GRG\, ∼1 Mpc) are among the most extreme manifestations of the accretion/ejection processes on superm assive black holes. Our recent studies have shown that GRG can be up to fo ur times more abundant in hard X-ray selected samples (i.e. from INTEGRAL/ IBIS and Swift/BAT at >20 keV) and\, most interestingly\, the majority of them present signs of restarted radio activity. This makes them the ideal testbed to study the so far unknown duty cycle of jets in active galactic nuclei. Open questions in the field include: How and when jets are restart ed? How jets evolve and what’s their dynamic? What is the jet’s duty c ycle and what triggers them? Our group has recently collected a wealth of radio data on these high-energy selected GRGs (the GRACE project)\, allowi ng us to study their jet formation and evolution from the pc to kpc scales across different activity epochs\, estimating their duty cycle. In partic ular\, thanks to our EVN large programme\, we were able to probe the newbo rn radio phase in their core. Finally\, we are devoting an effort to the e xploitation of new radio surveys data for the discovery of misaligned AGN as counterparts of Fermi/LAT and ANTARES catalogues. In particular\, we ar e unveiling the hidden population of radio galaxies associated with gamma- ray sources\, and possibly with neutrino events.\n \n10:00 Claudio Ricci ……………………………………………………………… …………………………………………… A Hard X-ray View of t he Accretion and Obscuration Properties of AGN\nUniversidad Diego Portales \, IEA\, Santiago\n \nX-ray emission is a ubiquitous property of Active Ga lactic Nuclei and\, being produced within a few gravitational radii from t he supermassive black hole\, it can provide fundamental information about the structure and geometry of the circumnuclear material\, as well as on t he characteristics of the accretion flow. Most accreting supermassive blac k holes are obscured by circumnuclear gas and dust. Studies of AGN in the X-rays are typically limited by this strong obscuration\, which reduces si gnificantly their completeness. Thanks to hard X-ray satellites\, such as INTEGRAL\, Swift/BAT and NuSTAR\, over the past two decades we have been g aining fundamental insights into the properties of AGN in the local Univer se. These hard X-ray selected samples provide an excellent low-z benchmark for studying AGN at higher redshifts and have been followed up with numer ous observations across the entire multiwavelength spectrum. In my talk\, I will review recent results obtained by studying the obscuration and accr etion properties of these highly complete samples of nearby AGN\, focussin g on both their X-ray and multi-wavelength properties.\n \n10:30 Eugenio B ottacini ……………………………………………………… ……………………………………………………………… ………….. Black Hole Physics in the Low-Redshift Universe\nDepartment of Physics and Astronomy\, University of Padova\n \nThe INTEGRAL mission has been successfully charting the high-energy sky for black hole physics at the centers of galaxies for more than two decades. Very specifically\, the extragalactic sky has been explored primarily at low redshift where th e detected supermassive black holes have been systematically followed up\, providing comprehensive insights into the black hole environment. Yet\, l ong-term precision observations unveil unexpected results that challenge o ur understanding of the physics of black holes. I will review the most adv anced high-energy observations that address the physics related to superma ssive black holes in the local Universe. A detailed example of Mrk 876 wil l be presented to illustrate the challenges in reconciling theory with obs ervations\, both in the context of a single source and within a broader sa mple.\n \n10:45 Lorena Hernández-García…………………………… ……………………….. The galaxy discovered by INTEGRAL that drama tically changed the direction of its relativistic jet\nUniversity of Valpa raiso\, Valparaiso\n \nGalaxies are usually classified based on their obse rvational properties. They are called radio galaxies when we see the relat ivistic jets in the plane of the sky\, while they are called blazars when the jet points towards us. PBC J2333.9-2343 is a very peculiar galaxy beca use it shows two radio lobes extended over 1.1 Mpc\, and a bright central core associated to a blazar nucleus. This galaxy was first selected from t he INTEGRAL sample because of its different classifications when observed at different wavelengths. After a comprehensive multi wavelength monitorin g (from radio frequencies to gamma rays) and multi scale observations (fro m kpc to pc scales) we were able to confirm the blazar nature of its nucle us. This result is confirmed by its spectral energy distribution\, that sh ows two peaks\, and the derived jet angle of 3 degrees is also typical of a blazar. The small orientation angle\, compared to the Mpc scale radio lo bes\, suggests a dramatic change of the jet direction. Other extreme objec ts like this may be discovered through the cross-correlation of future X-r ay and radio surveys\, using the latest generation instruments.\n \nSessio n 8: Radio-Gamma galactic results\n \nConvenor: Francesca Panessa (INAF\, IAPS\, Rome)\n \n11:30 Sara Elisa Motta …………………………… ……………………………………………………………… …………………… An INTEGRAL view of accreting black hole X-ray bi nariesGRBs\nINAF-OAB\, Milan\n \nGalactic X-ray binaries hosting stellar m ass black holes are ideal laboratories where to study the accretion proces ses and the launch of outflows which is ubiquitously observed in accreting systems. Accretion is best studied in the X-rays\, and it is based on the properties of the X-ray emission that several accretions states are defin ed\, which are also used to describe the multi wavelengths behaviour of th ese systems. I will give an overview of the phenomenology ascribed to the accretion process and to the generation of outflows in black hole X-ray bi naries in the framework of the accretion states\, and especially on the co nnection between the accretion processes and the generation of outflows. I n particular I will focus on the contributions of the INTEGRAL observatory to the study and understanding of the black hole X-ray binary population in our Galaxy\n \n11:50 Floriane Cangemi…………………………… ……………………………………………………………… …………………………………………High energy emission in Bl ack Hole X-ray Binaries\nUPC/APC\, Paris\n \nBlack hole X-ray binary syste ms provide ideal environments for studying extreme physical phenomena\, su ch as matter accretion and the formation of relativistic jets. Although th e emission below 100 keV is generally well understood\, a high-energy comp onent\, often referred to as the ”high-energy tail”\, is occasionally detected in some sources. The origin of this high-energy component is wide ly debated\, and INTEGRAL\, with its unique observational capabilities in hard X-rays\, has played a crucial role in enhancing our understanding of this emission. In this presentation\, we will highlight recent findings wi th INTEGRAL et and explore the different scenarios that might explain the origin of this component. We will present spectral analyses conducted on m ultiple sources\, as well as recent polarization results obtained thanks t o IBIS and SPI\, which provide unique insights into the nature of this emi ssion. These findings emphasize the importance of studying high-energy emi ssions in black hole binaries to refine our understanding of the physical processes occurring in these systems.\n \n12:10 Melania Del Santo …… ……………………………………………………………… ……………………. High-energy emission and disk/jet connection in Galactic black-hole binaries\nINAF\, IASF\, Palermo\n \nGalactic black hol e binaries show several and complex accretion states and transitions in th e X/gamma-ray domain\, also connected to different behaviors of the outflo ws\, either jets or winds. I will review both on the observations performe d in the last years\, in particular with the INTEGRAL satellite\, and on t he emission models used to explain the involved physical processes. Thanks to INTEGRAL\, we have a new view on the high energy emission observed in several systems above 200 keV. The origin of this emission is unclear\, it could be either due to the presence of a small fraction of non-thermal el ectrons in a hot Comptonising plasma or originate in the jet. Finally\, I will present preliminary results obtained applying the jet emission model ISHEM to a few systems recently observed emitting in the soft gamma-ray do main.\n \n12:30 Tristan Bouchet…………………………………… ……………………………………………………………Polar ization properties of Swift J1727.8-1613 and others with INTEGRAL/IBIS\nCE A Saclay\, Paris\n \nThe IBIS telescope onboard the INTEGRAL satellite can be used to probe the polarization of bright sources above 200 keV\, thank s to the Compton scattering of photons between its two detectors: ISGRI (3 0 – 500 keV) and PICsIT (150 keV – 10 MeV). In this talk we will first describe the recent improvement of the IBIS Compton mode in the low energ y band (200 - 300 keV)\, and show how it compares to other independent pol arization measurements of the Crab nebula\, providing support for the resu lts in this new energy range. This method can also be used with observatio ns of Black Hole X-ray Binaries/Microquasars\, most of which have been fou nd to emit a high-energy tail (above typically 100-200 keV) during some ph ases of their outbursts. This emission detected by INTEGRAL has yet to be fully explained. Following previous studies by our team we found a high po larization degree in the Microquasar Swift J1727.8-1613\, both in the hard and soft intermediate states\, compatible with synchrotron emission. Inte restingly the polarization angle was found to be aligned with the jet axis in the Soft Intermediate State\, and the same jet alignment was found aft er reanalysing data of the source MAXI J1348-630. We therefore argue that this behavior may be more generic than first thought. Finally\, we interpr et the possible orientation of the polarization angle and magnetic field c ompared to the gamma-ray emitting jet during the outburst\, and we suggest a way to constrain the inclination of the jet using the polarization frac tion and photon index.\n \n12:45 James Rodi………………………… …………………… Exploring the Long-term Average Spectra of the Pe rsistent Black Hole Candidates GRS 1758-258 and 1E 1740.7-2942\nINAF-IAPS\ , Roma\n \nThe persistent Galactic Center black hole candidates GRS 1758-2 58 and 1E 1740.7-2942 have been monitored extensively throughout the INTEG RAL mission. During this time the sources exhibited both soft and hard spe ctral states. Using over 20 Ms of exposure time\, we investigate the long- term average spectral states of GRS 1758-258 and 1E 1740.7-2942 up to soft gamma-rays with IBIS-ISGRI.\n \n-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~- ~-~-\n-- Do not delete or change any of the following text. -- \n \nWhen i t's time\, join your Webex meeting here. \n \n \nMeeting number (access co de): 2373 940 6614\nMeeting password: KkPwUyK8k44 \n \n \nJoin meeting \n \nTap to join from a mobile device (attendees only) \n+44-20-3478-528 9\,\,23739406614## United Kingdom Toll \n\nJoin by phone \n+44-20-3478-5289 United Kingdom Toll \nGlobal call-in numbers \n \nJoin from a video syst em or application\nDial 23739406614@esait.webex.com \nYou can also dial 62.109.219.4 and enter your meeting numb er. \n \n \nIf you are a host\, click here and login s ite to view host information. \n \n \nNeed help? Go to http://help.webex.c om \n \n \n \n \n DTEND;TZID="W. Europe Standard Time":20241023T130000 DTSTAMP:20241011T121540Z DTSTART;TZID="W. Europe Standard Time":20241023T093000 LAST-MODIFIED:20241011T121540Z LOCATION:Rooms D1/D2 ORGANIZER;CN="Juan Pablo Vega Gonzalez":mailto:Juan.Pablo.Vega.Gonzalez@ext .esa.int PRIORITY:5 SEQUENCE:0 SUMMARY;LANGUAGE=en-gb:INTEGRAL Workshop 2024 – Day 3 – Wed Oct 23 AM – Sessions 7-8 TRANSP:OPAQUE UID:040000008200E00074C5B7101A82E00800000000B0A35BB6D31BDB01000000000000000 01000000040E64853BC84524C86B493BD277D825C X-ALT-DESC;FMTTYPE=text/html:

Wed nesday\, October 23

 \;

Session 7: Radio-Gamma extragalactic results

&nb sp\;

Convenor: Francesca Panessa (INAF\, IAPS\, Rome)

 \;

9:30 Gabriele Bruni …… ……………………………………………………………… ……………………………………………………………… ……………. Extra-galactic jets in the high energy sky

INAF\, IAPS\, Rome< /i>

< i> \;

The advent of new generation radio telescopes is opening ne w possibilities on the classification and study of extragalactic high-ener gy sources\, specially the underrepresented ones like radio galaxies. Among these\, Giant Radio Galaxies (GRG\, ∼1 Mpc) are among the most extreme manifestations of the accretion/ejection processes on supermassive black holes. Our recent studi es have shown that GRG can be up to four times more abundant in hard X-ray selected samples (i.e. from INTEGRAL/IBIS and Swift/BAT at >\;20 keV) a nd\, most interestingly\, the majority of them pr esent signs of restarted radio activity. This makes them the ideal testbed to study the so far unknown duty cycle of jets in active galactic nuclei. Open questions in the field include: How and when jets are restarted? How jets evolve and what’s their dynamic? What is the jet’s duty cycle an d what triggers them? Our group has recently collected a wealth of radio d ata on these high-energy selected GRGs (the GRACE project)\, allowing us t o study their jet formation and evolution from the pc to kpc scales across different activity epochs\, estimating their duty cycle. In particular\, thanks to our EVN large programme\, we were able to probe the newborn radio phase in their core. Finally\, we are devoting an effort to the exploitation of new radio surveys data for the discovery of misaligned AGN as counterparts of Fermi/LAT and ANTARES catalogues. In particular\, we are unveiling the hidden populati on of radio galaxies associated with gamma-ray sources\, and possibly with neutrino events.

 \;

10:00 Claudio Ricci …………………………………………………… ……………………………………………………… A Hard X-r ay View of the Accretion and Obscuration Properties of AGN

Universidad Diego Portales\, IEA\, San tiago

 \;

X-ray emission is a ubiquitous prop erty of Active Galactic Nuclei and\, being produced within a few gravitati onal radii from the supermassive black hole\, it can provide fundamental i nformation about the structure and geometry of the circumnuclear material\ , as well as on the characteristics of the accretion flow. Most accreting supermassive black holes are obscured by circumnuclear gas and dust. Studi es of AGN in the X-rays are typically limited by this strong obscuration\, which reduces significantly their completeness. Thanks to hard X-ray satellites\, such as INTEGRAL\, Swift/BAT and NuSTAR\, over the past two decades we have been gaining fundamental insights into the properties of AGN in the local Universe. Th ese hard X-ray selected samples provide an excellent low-z benchmark for s tudying AGN at higher redshifts and have been followed up with numerous ob servations across the entire multiwavelength spectrum. In my talk\, I will review recent results obtained by studying the obscuration and accretion properties of these highly complete samples of nearby AGN\, focussing on b oth their X-ray and multi-wavelength properties.

 \;

10:30< /b> Eugenio Bottacini ………………………………………………………… ……………………………………………………………… ……….. Black Hole Physics in the Low-Redshift Universe

Department of Physics and Astronomy\, University of Padova

< o:p> \;

The INTEGRAL missio n has been successfully charting the high-energy sky for black hole physic s at the centers of galaxies for more than two d ecades. Very specifically\, the extragalactic sky has been explored primar ily at low redshift where the detected supermassive black holes have been systematically followed up\, providing comprehensive insights into the bla ck hole environment. Yet\, long-term precision observations unveil unexpec ted results that challenge our understanding of the physics of black holes . I will review the most advanced high-energy observations that address th e physics related to supermassive black holes in the local Universe. A det ailed example of Mrk 876 will be presented to illustrate the challenges in reconciling theory with observations\, both in the context of a single so urce and within a broader sample.

 \;

10:45 Lore na Hernández-García…………………………………………… ……….. The galaxy discovered by INTEGRAL that dramatically changed th e direction of its relativistic jet

University of Valparaiso\, Valparaiso

 \;

Galaxies are usually classified based on their observational pro perties. They are called radio galaxies when we see the relativistic jets in the plane of the sky\, while they are called blazars when the jet point s towards us. PBC J2333.9-2343 is a very peculiar galaxy because it shows two radio lobes extended over 1.1 Mpc\, and a br ight central core associated to a blazar nucleus. This galaxy was first se lected from the INTEGRAL sample because of its different classifications w hen observed at different wavelengths. After a comprehensive multi wavelen gth monitoring (from radio frequencies to gamma rays) and multi scale obse rvations (from kpc to pc scales) we were able to confirm the blazar nature of its nucleus. This result is confirmed by its spectral energy distribut ion\, that shows two peaks\, and the derived jet angle of 3 degrees is als o typical of a blazar. The small orientation angle\, compared to the Mpc scale radio lobes\, suggests a dramatic change of the jet direction. Other extreme objects like this may be discovered thro ugh the cross-correlation of future X-ray and radio surveys\, using the la test generation instruments.

< o:p> \;

Session 8: Radio-Gamma galactic results< o:p>

 \;

Conv enor: Francesca Panessa (INAF\, IAPS\, Rome)

 \;

11:30 Sara Elisa Motta …………………………………………………… …………………………………………………………… An I NTEGRAL view of accreting black hole X-ray binariesGRBs

INAF-OAB\, Mila n

 \;

Galactic X-ray binaries hosting stellar mass black holes are ideal laboratories where to study the accretion proc esses and the launch of outflows which is ubiquitously observed in accreti ng systems. Accretion is best studied in the X-rays\, and it is based on t he properties of the X-ray emission that several accretions states are def ined\, which are also used to describe the multi wavelengths behaviour of these systems. I will give an overview of the phenomenology ascribed to th e accretion process and to the generation of outflows in black hole X-ray binaries in the framework of the accretion states\, and especially on the connection between the accretion processes and the generation of outflows. In particular I will focus on the contributions of the INTEGRAL observatory to the study and understanding of the black ho le X-ray binary population in our Galaxy

&nbs p\;

11:50 Floriane Cangemi……………………………………………… ……………………………………………………………… ………………………High energy emission in Black Hole X-ray Binari es

UPC/APC\, Paris

 \;

Black hole X-ray binary systems provide ideal environments for studying extreme physical phenomena\, such as matter acc retion and the formation of relativistic jets. Although the emission below 100 keV is generally well understood\, a high-energy component\, often re ferred to as the ”high-energy tail”\, is occasionally detected in some sources. The origin of this high-energy component is widely debated\, and INTEGRAL\, with its unique observational capabilities in hard X-rays\, ha s played a crucial role in enhancing our understanding of this emission. I n this presentation\, we will highlight recent findings with INTEGRAL et a nd explore the different scenarios that might explain the origin of this c omponent. We will present spectral analyses conducted on multiple sources\ , as well as recent polarization results obtained thanks to IBIS and SPI\, which provide unique insights into the nature of this emission. These fin dings emphasize the importance of studying high-energy emissions in black hole binaries to refine our understanding of the physical processes occurr ing in these systems.

 \;

12:10 Melania Del Santo ……………………………………… …………………………………………………. High-energy emi ssion and disk/jet connection in Galactic black-hole binaries

INAF\, IASF\, Palermo

 \;

Galactic black hole binaries show several and complex accretion states and transitions in the X/gamma-ray domain\, also connecte d to different behaviors of the outflows\, eithe r jets or winds. I will review both on the observations performed in the l ast years\, in particular with the INTEGRAL satellite\, and on the emission models used to explain the involved physical pr ocesses. Thanks to INTEGRAL\, we have a new view on the high energy emissi on observed in several systems above 200 keV. The origin of this emission is unclear\, it could be either due to the presence of a small fraction of non-thermal electrons in a hot Comptonising pla sma or originate in the jet. Finally\, I will present preliminary results obtained applying the jet emission model ISHEM to a few systems recently o bserved emitting in the soft gamma-ray domain.

 \;

12:30 Tristan Bouchet………………… ……………………………………………………………… ………………Polarization properties of Swift J1727.8-1613 and others with INTEGRAL/IBIS

CEA Saclay\, Paris

 \;

The IBIS telescope onboard the INTEGRAL satellite can be used to probe th e polarization of bright sources above 200 keV\, thanks to the Compton sca ttering of photons between its two detectors: ISGRI (30 – 500 keV) and < span class=SpellE>PICsIT (150 keV – 10 MeV). In this talk we will first describe the recent improvement of the IBIS Compton mode in the low energy band (200 - 300 keV)\, and show how it co mpares to other independent polarization measurements of the Crab nebula\, providing support for the results in this new energy range. This method c an also be used with observations of Black Hole X-ray Binaries/Microquasars\, most of which have been found to emit a high -energy tail (above typically 100-200 keV) during some phases of their out bursts. This emission detected by INTEGRAL has yet to be fully explained. Following previous studies by our team we found a high polarization degree in the Microquasar Swift J1727.8-1613\, both in the hard and soft intermediate states\, compatible with synchrotron emiss ion. Interestingly the polarization angle was found to be aligned with the jet axis in the Soft Intermediate State\, and the same jet alignment was found after reanalysing data of the source MAXI J1348-630. We therefore ar gue that this behavior may be more generic than first thought. Finally\, we interpret the possible orientation of the pola rization angle and magnetic field compared to the gamma-ray emitting jet d uring the outburst\, and we suggest a way to constrain the inclination of the jet using the polarization fraction and photon index.

 \;

12:45 James Rodi…………………… ………………………… Exploring the Long-term Average Spectra of the Persistent Black Hole Candidates GRS 1758-258 and 1E 1740.7-2942< /o:p>

INAF-IAPS\, Roma

 \;

The persistent Gal actic Center black hole candidates GRS 1758-258 and 1E 1740.7-2942 have been monitored extensively throughout the INTEGRAL mission. During this time the sources exhibited both soft and hard spectral states. Using over 20 Ms of exposure time\, we investigate the long-term average spectral states of GRS 1758-258 and 1E 1740.7-2942 up to soft gamma-rays with IBIS-ISGRI.

 \;

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