From raffaella.schneider at roma1.infn.it  Wed Mar  3 15:33:08 2021
From: raffaella.schneider at roma1.infn.it (raffaella.schneider at roma1.infn.it)
Date: Wed, 3 Mar 2021 15:33:08 +0100
Subject: [astroseminar@Sapienza] Announcement of the 3rd QUID ULTRA
 colloquium by Benedetta Ciardi on Tuesday 9 March 2021 at 16:30
Message-ID: <4FA5114B-C149-47DA-8CD1-034FF556BB71@roma1.infn.it>

Dear Colleagues,

we are pleased to announce that the third colloquium of the program QUID ULTRA? Frontiers and Controversies in Astrophysics,
will be on March 9 2021 at 16:30 by Benedetta Ciardi (Max-Planck-Institute for Astrophysics, Munich).  Title and abstract
are attached below. 

The program QUID ULTRA? Frontiers and Controversies in Astrophysics is a series of monthly prestigious colloquia that will be 
running from early February till December 2021. This initiative has been funded by Sapienza University with the co-sponsorship 
of INAF/Astronomical Observatory of Rome and of the joint PhD program in Astronomy, Astrophysics and Space Science of Sapienza, 
Tor Vergata University and INAF.

Due to the pandemic situation, the first 6 colloquia will be held online via zoom. 
The scientific program and all the information on how to attend the meeting can be found on the project website: www.quidultra.it. 

Looking forward to seeing you soon, 

Raffaella Schneider (on behalf of the SOC)

Prof. Raffaella Schneider
Dipartimento di Fisica "G. Marconi?
Senior Fellow, Scuola Superiore di Studi Avanzati Sapienza
Sapienza, Universit? di Roma
P.le A. Moro 2, 00185 Roma, Italy
raffaella.schneider at uniroma1.it

????????????????
March 9 2021 at 16:30

Benedetta Ciardi (Max-Planck-Institute for Astrophysics, Munich)

Title: Exploring cosmic reionization with 21cm telescopes


Abstract:

Cosmic reionization is the last major phase transition undergone by our Universe. Although most studies agree on the general characteristics of H reionization
(for example that is driven by stars and it is mostly if not fully complete by z ? 6), its details are still largely unknown, among which the contribution from and
role played by more energetic sources.
In this talk, I will discuss the ingredients needed for a correct modeling of cosmic reionization and present results from recent radiative transfer simulations
accounting for a variety of source types (such as stars, quasars, X-ray binaries). I will then discuss the observability of reionization in terms of various diagnostics
associated to the 21cm signal from neutral hydrogen and present the latest results from the LOFAR radio telescope.

Join Zoom Meeting
https://uniroma1.zoom.us/j/89931306878?pwd=WG5RYlYyZzRSMzJsOFpSRHczWEFCZz09 <https://uniroma1.zoom.us/j/89931306878?pwd=WG5RYlYyZzRSMzJsOFpSRHczWEFCZz09>

Meeting ID: 899 3130 6878
Passcode: 419276
????????????????







-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists2.roma1.infn.it/pipermail/astroseminar/attachments/20210303/9e470644/attachment.html 

From raffaella.schneider at roma1.infn.it  Mon Mar  8 13:03:14 2021
From: raffaella.schneider at roma1.infn.it (raffaella.schneider at roma1.infn.it)
Date: Mon, 8 Mar 2021 13:03:14 +0100
Subject: [astroseminar@Sapienza] reminder: third QUID ULTRA colloquium by
 Benedetta Ciardi, tuesday 9 march 16:30
Message-ID: <124C196C-4D05-46DC-BD9E-6526BDC40D3A@roma1.infn.it>

Dear Colleagues,

this is to gently remind you that the third online colloquium of the series: 

Quid Ultra? Frontiers and Controversies in Astrophysics 

will be tomorrow. You can find all the details below and the updated program 
for future colloquia at the link:  https://www.quidultra.it <https://www.quidultra.it/>

Looking forward to seeing you soon, 

Raffaella Schneider (on behalf of the SOC)
  
Prof. Raffaella Schneider
Dipartimento di Fisica "G. Marconi?
Senior Fellow, Scuola Superiore di Studi Avanzati Sapienza
Sapienza, Universit? di Roma
P.le A. Moro 2, 00185 Roma, Italy
raffaella.schneider at roma1.infn.it <mailto:raffaella.schneider at roma1.infn.it>

????????????????????????????
March 9 2021 at 16:30

Benedetta Ciardi (Max-Planck-Institute for Astrophysics, Munich)

Title: Exploring cosmic reionization with 21cm telescopes

Abstract:

Cosmic reionization is the last major phase transition undergone by our Universe. Although most studies agree on the general characteristics of H reionization
(for example that is driven by stars and it is mostly if not fully complete by z ? 6), its details are still largely unknown, among which the contribution from and
role played by more energetic sources.
In this talk, I will discuss the ingredients needed for a correct modeling of cosmic reionization and present results from recent radiative transfer simulations
accounting for a variety of source types (such as stars, quasars, X-ray binaries). I will then discuss the observability of reionization in terms of various diagnostics
associated to the 21cm signal from neutral hydrogen and present the latest results from the LOFAR radio telescope.

Join Zoom Meeting
https://uniroma1.zoom.us/j/89931306878?pwd=WG5RYlYyZzRSMzJsOFpSRHczWEFCZz09 <https://uniroma1.zoom.us/j/89931306878?pwd=WG5RYlYyZzRSMzJsOFpSRHczWEFCZz09>

Meeting ID: 899 3130 6878
Passcode: 419276
????????????????????????????







-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists2.roma1.infn.it/pipermail/astroseminar/attachments/20210308/0e47df21/attachment.html 

From paolo.pani at uniroma1.it  Fri Mar 12 16:51:34 2021
From: paolo.pani at uniroma1.it (Paolo Pani)
Date: Fri, 12 Mar 2021 16:51:34 +0100
Subject: [astroseminar@Sapienza] Two gravity theory webinars next week
	(March 15, 12h and March 18 16h)
Message-ID: <CADjeKwCNaiNW=DBw1b9-NM1qi=pzmP_Hp_0_L9_dejdnbnwB7A@mail.gmail.com>

Next week there will be *two* gravity-theory webinars:

*1. Danny Laghi* and *Gregorio Carullo* (University of Pisa)
Monday, Mar 15th, h12pm

*Title*: *Quantum black hole spectroscopy: probing the quantum nature of
the black hole area using LIGO-Virgo ringdown detections.*

*Abstract*: We present an observational investigation of the hypothesis
that the area of a black hole is quantised in multiples of the Planck area,
relying on a recently-proposed heuristic ringdown model built from the
Bekenstein-Mukhanov quantisation conjecture. The theoretical principles of
the model, along with some of its possible extensions, are reviewed.
Leveraging on the increasing number of black hole merger detections from
the LIGO and Virgo collaborations, we present a test of the conjecture by
combining all the available information from the black hole population
included in the GWTC-2 catalog. A time-domain analysis, based on the pyRing
software, is employed to quantify the evidence for the presence of
signatures of the area quantisation in the ringdown signals. We also
discuss the exciting detection prospects of effects due to the area
quantisation with future observations from current ground-based detectors
at their design sensitivity.




*2.* *Alejandro Cruz-Osorio *(Goethe University of Frankfurt)
Wednesday, Mar 18th, h4pm

*Title*: General relativistic simulations of the common-envelope evolution

*Abstract*: The common-envelope scenario is encountered when a black
hole/neutron star moves in the stellar envelope of a red supergiant star as
a  consequence the orbital energy and angular momentum are transferred to
the gas modifying the quasi-circular orbit of the binary and reducing the
inspiral timescale. We will discuss the results from general relativistic
simulations of a simplified model of the interaction between a stellar
black hole and the envelope of a red supergiant star. We have considered a
non-rotating black hole moving supersonically in a medium with regular but
different density gradients. The simulations reveal that the supersonic
motion always rapidly reaches a stationary state and it produces a shock
cone in the downstream part of the flow. Together with the phenomenological
aspects of the accretion flow, we have also quantified the rates of
accretion of mass and momentum onto the black hole. Simple analytic
expressions have been found for the rates of accretion of mass, momentum,
drag force, and bremsstrahlung luminosity. Our results have shown that the
inspiral time can be reduced from 200years to 0.4years in the common
envelope-phase of the binary system.



For both events, the Zoom link is
https://uniroma1.zoom.us/j/81283707469?pwd=SzkyMk5jRm0xcEN3WE5MYVh1RVFtQT09
ID meeting: 812 8370 7469
Passcode: 915450

Calendar available here:
 https://calendar.google.com/calendar/u/1?cid=Y191MGo3bG9pYzE1bjBxdGFhN3A4MTlzNDg2Y0Bncm91cC5jYWxlbmRhci5nb29nbGUuY29t
<https://calendar.google.com/calendar/u/1?cid=Y191MGo3bG9pYzE1bjBxdGFhN3A4MTlzNDg2Y0Bncm91cC5jYWxlbmRhci5nb29nbGUuY29t>

Have a nice weekend,
Paolo

-- 
Paolo Pani
Associate Professor
ERC StG Fellow, DarkGRA project
Junior Fellow, Scuola Superiore di Studi Avanzati Sapienza

Physics Department (Marconi Building), 3rd floor, room 334
Sapienza University of Rome
Piazzale Aldo Moro 5 - 00185 Rome (Italy)
+39 06 4991 4472 (int 24472)

-- 
________________________________________________________
Le informazioni 
contenute in questo messaggio di posta elettronica sono strettamente 
riservate e indirizzate esclusivamente al destinatario. Si prega di non 
leggere, fare copia, inoltrare a terzi o conservare tale messaggio se non 
si ? il legittimo destinatario dello stesso. Qualora tale messaggio sia 
stato ricevuto per errore, si prega di restituirlo al mittente e di 
cancellarlo permanentemente dal proprio computer.
The information contained 
in this e mail message is strictly confidential and intended for the use of 
the addressee only.? If you are not the intended recipient, please do not 
read, copy, forward or store it on your computer. If you have received the 
message in error, please forward it back to the sender and delete it 
permanently from your computer system.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists2.roma1.infn.it/pipermail/astroseminar/attachments/20210312/d85c5694/attachment.html 

From paolo.pani at uniroma1.it  Wed Mar 17 08:32:34 2021
From: paolo.pani at uniroma1.it (Paolo Pani)
Date: Wed, 17 Mar 2021 08:32:34 +0100
Subject: [astroseminar@Sapienza] Two gravity theory webinars next week
	(March 15, 12h and March 18 16h)
In-Reply-To: <CADjeKwCNaiNW=DBw1b9-NM1qi=pzmP_Hp_0_L9_dejdnbnwB7A@mail.gmail.com>
References: <CADjeKwCNaiNW=DBw1b9-NM1qi=pzmP_Hp_0_L9_dejdnbnwB7A@mail.gmail.com>
Message-ID: <CADjeKwAWBa9jhW=WRHiVGvdG4xg9regELA2NL-2PLGuS1YS9Ag@mail.gmail.com>

Just a reminder for today's seminar:

*Alejandro Cruz-Osorio *(Goethe University of Frankfurt)
Wednesday, Mar 18th, h16:00

*Title*: General relativistic simulations of the common-envelope evolution

*Abstract*: The common-envelope scenario is encountered when a black
hole/neutron star moves in the stellar envelope of a red supergiant star as
a  consequence the orbital energy and angular momentum are transferred to
the gas modifying the quasi-circular orbit of the binary and reducing the
inspiral timescale. We will discuss the results from general relativistic
simulations of a simplified model of the interaction between a stellar
black hole and the envelope of a red supergiant star. We have considered a
non-rotating black hole moving supersonically in a medium with regular but
different density gradients. The simulations reveal that the supersonic
motion always rapidly reaches a stationary state and it produces a shock
cone in the downstream part of the flow. Together with the phenomenological
aspects of the accretion flow, we have also quantified the rates of
accretion of mass and momentum onto the black hole. Simple analytic
expressions have been found for the rates of accretion of mass, momentum,
drag force, and bremsstrahlung luminosity. Our results have shown that the
inspiral time can be reduced from 200years to 0.4years in the common
envelope-phase of the binary system.

Zoom link:
https://uniroma1.zoom.us/j/81283707469?pwd=SzkyMk5jRm0xcEN3WE5MYVh1RVFtQT09
ID meeting: 812 8370 7469
Passcode: 915450

Best,
Paolo

On Fri, Mar 12, 2021 at 4:51 PM Paolo Pani <paolo.pani at uniroma1.it> wrote:

> Next week there will be *two* gravity-theory webinars:
>
> *1. Danny Laghi* and *Gregorio Carullo* (University of Pisa)
> Monday, Mar 15th, h12pm
>
> *Title*: *Quantum black hole spectroscopy: probing the quantum nature of
> the black hole area using LIGO-Virgo ringdown detections.*
>
> *Abstract*: We present an observational investigation of the hypothesis
> that the area of a black hole is quantised in multiples of the Planck area,
> relying on a recently-proposed heuristic ringdown model built from the
> Bekenstein-Mukhanov quantisation conjecture. The theoretical principles of
> the model, along with some of its possible extensions, are reviewed.
> Leveraging on the increasing number of black hole merger detections from
> the LIGO and Virgo collaborations, we present a test of the conjecture by
> combining all the available information from the black hole population
> included in the GWTC-2 catalog. A time-domain analysis, based on the pyRing
> software, is employed to quantify the evidence for the presence of
> signatures of the area quantisation in the ringdown signals. We also
> discuss the exciting detection prospects of effects due to the area
> quantisation with future observations from current ground-based detectors
> at their design sensitivity.
>
>
>
>
> *2.* *Alejandro Cruz-Osorio *(Goethe University of Frankfurt)
> Wednesday, Mar 18th, h4pm
>
> *Title*: General relativistic simulations of the common-envelope evolution
>
> *Abstract*: The common-envelope scenario is encountered when a black
> hole/neutron star moves in the stellar envelope of a red supergiant star as
> a  consequence the orbital energy and angular momentum are transferred to
> the gas modifying the quasi-circular orbit of the binary and reducing the
> inspiral timescale. We will discuss the results from general relativistic
> simulations of a simplified model of the interaction between a stellar
> black hole and the envelope of a red supergiant star. We have considered a
> non-rotating black hole moving supersonically in a medium with regular but
> different density gradients. The simulations reveal that the supersonic
> motion always rapidly reaches a stationary state and it produces a shock
> cone in the downstream part of the flow. Together with the phenomenological
> aspects of the accretion flow, we have also quantified the rates of
> accretion of mass and momentum onto the black hole. Simple analytic
> expressions have been found for the rates of accretion of mass, momentum,
> drag force, and bremsstrahlung luminosity. Our results have shown that the
> inspiral time can be reduced from 200years to 0.4years in the common
> envelope-phase of the binary system.
>
>
>
> For both events, the Zoom link is
> https://uniroma1.zoom.us/j/81283707469?pwd=SzkyMk5jRm0xcEN3WE5MYVh1RVFtQT09
>
> ID meeting: 812 8370 7469
> Passcode: 915450
>
> Calendar available here:
>  https://calendar.google.com/calendar/u/1?cid=Y191MGo3bG9pYzE1bjBxdGFhN3A4MTlzNDg2Y0Bncm91cC5jYWxlbmRhci5nb29nbGUuY29t
> <https://calendar.google.com/calendar/u/1?cid=Y191MGo3bG9pYzE1bjBxdGFhN3A4MTlzNDg2Y0Bncm91cC5jYWxlbmRhci5nb29nbGUuY29t>
>
> Have a nice weekend,
> Paolo
>
> --
> Paolo Pani
> Associate Professor
> ERC StG Fellow, DarkGRA project
> Junior Fellow, Scuola Superiore di Studi Avanzati Sapienza
>
> Physics Department (Marconi Building), 3rd floor, room 334
> Sapienza University of Rome
> Piazzale Aldo Moro 5 - 00185 Rome (Italy)
> +39 06 4991 4472 (int 24472)
>


-- 
Paolo Pani
Associate Professor
ERC StG Fellow, DarkGRA project
Junior Fellow, Scuola Superiore di Studi Avanzati Sapienza

Physics Department (Marconi Building), 3rd floor, room 334
Sapienza University of Rome
Piazzale Aldo Moro 5 - 00185 Rome (Italy)
+39 06 4991 4472 (int 24472)

-- 
________________________________________________________
Le informazioni 
contenute in questo messaggio di posta elettronica sono strettamente 
riservate e indirizzate esclusivamente al destinatario. Si prega di non 
leggere, fare copia, inoltrare a terzi o conservare tale messaggio se non 
si ? il legittimo destinatario dello stesso. Qualora tale messaggio sia 
stato ricevuto per errore, si prega di restituirlo al mittente e di 
cancellarlo permanentemente dal proprio computer.
The information contained 
in this e mail message is strictly confidential and intended for the use of 
the addressee only.? If you are not the intended recipient, please do not 
read, copy, forward or store it on your computer. If you have received the 
message in error, please forward it back to the sender and delete it 
permanently from your computer system.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists2.roma1.infn.it/pipermail/astroseminar/attachments/20210317/153b88f7/attachment.html 

From paolo.pani at uniroma1.it  Wed Mar 17 08:43:59 2021
From: paolo.pani at uniroma1.it (Paolo Pani)
Date: Wed, 17 Mar 2021 08:43:59 +0100
Subject: [astroseminar@Sapienza] Two gravity theory webinars next week
	(March 15, 12h and March 18 16h)
In-Reply-To: <CADjeKwAWBa9jhW=WRHiVGvdG4xg9regELA2NL-2PLGuS1YS9Ag@mail.gmail.com>
References: <CADjeKwCNaiNW=DBw1b9-NM1qi=pzmP_Hp_0_L9_dejdnbnwB7A@mail.gmail.com>
	<CADjeKwAWBa9jhW=WRHiVGvdG4xg9regELA2NL-2PLGuS1YS9Ag@mail.gmail.com>
Message-ID: <CADjeKwAx6nUwDEYQicWxNwp8mjVC9++ML3qnyz2POSvCq+JCLw@mail.gmail.com>

PS: apologies, there is a typo in the announcement. The seminar is *today
at 4pm*, not tomorrow.

On Wed, Mar 17, 2021 at 8:32 AM Paolo Pani <paolo.pani at uniroma1.it> wrote:

> Just a reminder for today's seminar:
>
> *Alejandro Cruz-Osorio *(Goethe University of Frankfurt)
> Wednesday, Mar 18th, h16:00
>
> *Title*: General relativistic simulations of the common-envelope evolution
>
> *Abstract*: The common-envelope scenario is encountered when a black
> hole/neutron star moves in the stellar envelope of a red supergiant star as
> a  consequence the orbital energy and angular momentum are transferred to
> the gas modifying the quasi-circular orbit of the binary and reducing the
> inspiral timescale. We will discuss the results from general relativistic
> simulations of a simplified model of the interaction between a stellar
> black hole and the envelope of a red supergiant star. We have considered a
> non-rotating black hole moving supersonically in a medium with regular but
> different density gradients. The simulations reveal that the supersonic
> motion always rapidly reaches a stationary state and it produces a shock
> cone in the downstream part of the flow. Together with the phenomenological
> aspects of the accretion flow, we have also quantified the rates of
> accretion of mass and momentum onto the black hole. Simple analytic
> expressions have been found for the rates of accretion of mass, momentum,
> drag force, and bremsstrahlung luminosity. Our results have shown that the
> inspiral time can be reduced from 200years to 0.4years in the common
> envelope-phase of the binary system.
>
> Zoom link:
> https://uniroma1.zoom.us/j/81283707469?pwd=SzkyMk5jRm0xcEN3WE5MYVh1RVFtQT09
>
> ID meeting: 812 8370 7469
> Passcode: 915450
>
> Best,
> Paolo
>
> On Fri, Mar 12, 2021 at 4:51 PM Paolo Pani <paolo.pani at uniroma1.it> wrote:
>
>> Next week there will be *two* gravity-theory webinars:
>>
>> *1. Danny Laghi* and *Gregorio Carullo* (University of Pisa)
>> Monday, Mar 15th, h12pm
>>
>> *Title*: *Quantum black hole spectroscopy: probing the quantum nature of
>> the black hole area using LIGO-Virgo ringdown detections.*
>>
>> *Abstract*: We present an observational investigation of the hypothesis
>> that the area of a black hole is quantised in multiples of the Planck area,
>> relying on a recently-proposed heuristic ringdown model built from the
>> Bekenstein-Mukhanov quantisation conjecture. The theoretical principles of
>> the model, along with some of its possible extensions, are reviewed.
>> Leveraging on the increasing number of black hole merger detections from
>> the LIGO and Virgo collaborations, we present a test of the conjecture by
>> combining all the available information from the black hole population
>> included in the GWTC-2 catalog. A time-domain analysis, based on the pyRing
>> software, is employed to quantify the evidence for the presence of
>> signatures of the area quantisation in the ringdown signals. We also
>> discuss the exciting detection prospects of effects due to the area
>> quantisation with future observations from current ground-based detectors
>> at their design sensitivity.
>>
>>
>>
>>
>> *2.* *Alejandro Cruz-Osorio *(Goethe University of Frankfurt)
>> Wednesday, Mar 18th, h4pm
>>
>> *Title*: General relativistic simulations of the common-envelope
>> evolution
>>
>> *Abstract*: The common-envelope scenario is encountered when a black
>> hole/neutron star moves in the stellar envelope of a red supergiant star as
>> a  consequence the orbital energy and angular momentum are transferred to
>> the gas modifying the quasi-circular orbit of the binary and reducing the
>> inspiral timescale. We will discuss the results from general relativistic
>> simulations of a simplified model of the interaction between a stellar
>> black hole and the envelope of a red supergiant star. We have considered a
>> non-rotating black hole moving supersonically in a medium with regular but
>> different density gradients. The simulations reveal that the supersonic
>> motion always rapidly reaches a stationary state and it produces a shock
>> cone in the downstream part of the flow. Together with the phenomenological
>> aspects of the accretion flow, we have also quantified the rates of
>> accretion of mass and momentum onto the black hole. Simple analytic
>> expressions have been found for the rates of accretion of mass, momentum,
>> drag force, and bremsstrahlung luminosity. Our results have shown that the
>> inspiral time can be reduced from 200years to 0.4years in the common
>> envelope-phase of the binary system.
>>
>>
>>
>> For both events, the Zoom link is
>> https://uniroma1.zoom.us/j/81283707469?pwd=SzkyMk5jRm0xcEN3WE5MYVh1RVFtQT09
>>
>> ID meeting: 812 8370 7469
>> Passcode: 915450
>>
>> Calendar available here:
>>  https://calendar.google.com/calendar/u/1?cid=Y191MGo3bG9pYzE1bjBxdGFhN3A4MTlzNDg2Y0Bncm91cC5jYWxlbmRhci5nb29nbGUuY29t
>> <https://calendar.google.com/calendar/u/1?cid=Y191MGo3bG9pYzE1bjBxdGFhN3A4MTlzNDg2Y0Bncm91cC5jYWxlbmRhci5nb29nbGUuY29t>
>>
>> Have a nice weekend,
>> Paolo
>>
>> --
>> Paolo Pani
>> Associate Professor
>> ERC StG Fellow, DarkGRA project
>> Junior Fellow, Scuola Superiore di Studi Avanzati Sapienza
>>
>> Physics Department (Marconi Building), 3rd floor, room 334
>> Sapienza University of Rome
>> Piazzale Aldo Moro 5 - 00185 Rome (Italy)
>> +39 06 4991 4472 (int 24472)
>>
>
>
> --
> Paolo Pani
> Associate Professor
> ERC StG Fellow, DarkGRA project
> Junior Fellow, Scuola Superiore di Studi Avanzati Sapienza
>
> Physics Department (Marconi Building), 3rd floor, room 334
> Sapienza University of Rome
> Piazzale Aldo Moro 5 - 00185 Rome (Italy)
> +39 06 4991 4472 (int 24472)
>


-- 
Paolo Pani
Associate Professor
ERC StG Fellow, DarkGRA project
Junior Fellow, Scuola Superiore di Studi Avanzati Sapienza

Physics Department (Marconi Building), 3rd floor, room 334
Sapienza University of Rome
Piazzale Aldo Moro 5 - 00185 Rome (Italy)
+39 06 4991 4472 (int 24472)

-- 
________________________________________________________
Le informazioni 
contenute in questo messaggio di posta elettronica sono strettamente 
riservate e indirizzate esclusivamente al destinatario. Si prega di non 
leggere, fare copia, inoltrare a terzi o conservare tale messaggio se non 
si ? il legittimo destinatario dello stesso. Qualora tale messaggio sia 
stato ricevuto per errore, si prega di restituirlo al mittente e di 
cancellarlo permanentemente dal proprio computer.
The information contained 
in this e mail message is strictly confidential and intended for the use of 
the addressee only.? If you are not the intended recipient, please do not 
read, copy, forward or store it on your computer. If you have received the 
message in error, please forward it back to the sender and delete it 
permanently from your computer system.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists2.roma1.infn.it/pipermail/astroseminar/attachments/20210317/426a754d/attachment-0001.html 

From paolo.pani at uniroma1.it  Mon Mar 22 13:05:00 2021
From: paolo.pani at uniroma1.it (Paolo Pani)
Date: Mon, 22 Mar 2021 13:05:00 +0100
Subject: [astroseminar@Sapienza] Gravity theory webinar on Wed (24/03
 h16:00): William East (Perimeter Institute) on "Evolving Binary Black Hole
 Spacetimes Beyond Einstein"
Message-ID: <CADjeKwD_7GzqJG7eV+iGOjD72+cd32sLXz8y_LJp5qDACZU0Lw@mail.gmail.com>

Announcement for the next gravity-theory seminar:

*William East *(Perimeter Institute)
Wednesday, Mar 24th, h16:00

*Title*: *Evolving Binary Black Hole Spacetimes Beyond Einstein*

*Abstract*: Gravitational wave observations of black hole and other compact
object mergers have given us an unparalleled way to test our understanding
of gravity, and have already been used to constrain a number of possible
deviations from general relativity. However, despite the success of these
observations, for many alternative theories, it is unclear how to, or even
if one can, obtain a full theoretical prediction of what happens, e.g.,
when two black holes merge. I will discuss some recent progress in this
regard, showing how full, non-perturbative evolutions of Horndeski theories
of gravity can be carried out using a modified harmonic formulation.
Focusing on the particular case of Einstein-scalar-Gauss-Bonnet gravity as
a first application, I will present new results on the dynamics of black
hole scalarization and the mergers of compact objects. These methods can be
used to make gravitational wave predictions in the strong-field regime, as
well as providing a way to benchmark approximate treatments of deviations
from general relativity.

Zoom link:
https://uniroma1.zoom.us/j/81283707469?pwd=SzkyMk5jRm0xcEN3WE5MYVh1RVFtQT09
ID meeting: 812 8370 7469
Passcode: 915450

Calendar of future webinars available here:
 https://calendar.google.com/calendar/u/1?cid=Y191MGo3bG9pYzE1bjBxdGFhN3A4MTlzNDg2Y0Bncm91cC5jYWxlbmRhci5nb29nbGUuY29t
<https://calendar.google.com/calendar/u/1?cid=Y191MGo3bG9pYzE1bjBxdGFhN3A4MTlzNDg2Y0Bncm91cC5jYWxlbmRhci5nb29nbGUuY29t>

Best,
Paolo

-- 
Paolo Pani
Associate Professor
ERC StG Fellow, DarkGRA project
Junior Fellow, Scuola Superiore di Studi Avanzati Sapienza

Physics Department (Marconi Building), 3rd floor, room 334
Sapienza University of Rome
Piazzale Aldo Moro 5 - 00185 Rome (Italy)
+39 06 4991 4472 (int 24472)

-- 
________________________________________________________
Le informazioni 
contenute in questo messaggio di posta elettronica sono strettamente 
riservate e indirizzate esclusivamente al destinatario. Si prega di non 
leggere, fare copia, inoltrare a terzi o conservare tale messaggio se non 
si ? il legittimo destinatario dello stesso. Qualora tale messaggio sia 
stato ricevuto per errore, si prega di restituirlo al mittente e di 
cancellarlo permanentemente dal proprio computer.
The information contained 
in this e mail message is strictly confidential and intended for the use of 
the addressee only.? If you are not the intended recipient, please do not 
read, copy, forward or store it on your computer. If you have received the 
message in error, please forward it back to the sender and delete it 
permanently from your computer system.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists2.roma1.infn.it/pipermail/astroseminar/attachments/20210322/11bd6bdb/attachment.html 

