Hunting Compact Objects with Gaia
Almog Yalinewich 20.12.20
Plan of the Talk
-
Background
-
Motivation
-
Population Synthesis
-
Results
- Conclusion
Background
Stellar Evolution
Compact Object Detection Methods
X ray binaries ~60 BHS, 30 NSs
Credit: Serena Repetto's thesis
Gravitational Lensing
13 candidates from OGLE III, few others
Gravitational Waves
Black Hole Detection Methods
Spectroscopic binary ~2
Thompson et al 2018
Neutron Star Detection Methods
Magnificent seven
RXJ 18565-3754
Neutron Star Detection Methods
Pulsars > 2000
PSR B1919+21
Neutron Star Detection Methods
Magnetars ~ 30
Mass Limits
Chandrasekhar mass
\approx 1.4 M_{\odot}
TOV limit
\approx 3 M_{\odot}
Rapid rotation
20\%
Empiric value
\approx 2.3 M_{\odot}
Multiplicity
Offner et al 2013
Motivation
Natal Kicks
Many NS observations, almost nothing for BHs
Ng et al 2011
Common Envelope
Many NS observations, almost nothing for BHs
Ng et al 2011
