Talk detail

MG15 - Talk detail

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 Participant

Mirabel, Felix

Institution

Conicet-Argentina  - IAFE. Campus of University of Buenos Aires - Buenos Aires - Buenos Aires - Argentina

Session

AC1

Accepted

Order

Time

Talk

Oral abstract

Title

Observational Evidences for Disk-jet Connection in Accreeting Black Holes
Coauthors

Abstract

I will review the observational evidences for disk-jet connections in accreeting black holes of all mass scales. It will also be discussed the comparison of observations with theoretical models.

Pdf file

 

Session

CM2

Accepted

Order

Time

Talk

Oral abstract

Title

Contribution of Black Hole X-Ray Binaries to the X-ray, FIR and Radio Cosmic Backgrounds
Coauthors

Abstract

I will discuss the possible X-ray, FIR and Radio backgrounds due to accreting stellar black holes in high mass X-ray binaries prolifically formed as remanents of Pop III stellar systems during the reionization epoch of the universe. (https://doi.org/10.1051/0004-6361/201016357)

Pdf file

 

Session

GW1

Accepted

Order

Time

Talk

Oral abstract

Title

The Formation of Stellar Black Holes: Sources of GWs
Coauthors

Abstract

It is believed that stellar black holes (BHs) can be formed in two different ways: Either a massive star collapses directly into a BH without a supernova (SN) explosion, or an explosion occurs in a proto-neutron star, but the energy is too low to completely unbind the stellar envelope, and a large fraction of it falls back onto the short-lived neutron star (NS), leading to the delayed formation of a BH. Theoretical models set progenitor masses for BH formation by implosion, namely, by complete or almost complete collapse, but observational evidences have been elusive. I will review the observational insights on BHs formed by implosion without large natal kicks from: (1) the kinematics in three dimensions of space of five Galactic BH X-ray binaries (BH-XRBs), (2) the diversity of optical and infrared observations of massive stars that collapse in the dark, with no luminous SN explosions, possibly leading to the formation of BHs, and (3) the sources of gravitational waves (GWs) produced by mergers of stellar BHs so far detected with LIGO. Multiple indications of BH formation without ejection of a significant amount of matter and with no natal kicks obtained from these different areas of observational astrophysics, and the recent observational confirmation of the expected dependence of BH formation on metallicity and redshift, are qualitatively consistent with the high merger rates of binary black holes (BBHs) inferred from the first detections with LIGO. (https://doi.org/10.1016/j.newar.2017.04.002)

Pdf file

 

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