Neutron stars. Lecture 2 Sergei Popov (sai msu) ns masses


НазваNeutron stars. Lecture 2 Sergei Popov (sai msu) ns masses
Дата конвертації19.04.2013
Розмір445 b.
ТипПрезентации


Neutron stars. Lecture 2

Sergei Popov

(SAI MSU)

NS Masses

  • Stellar masses are directly measured only in binary systems

  • Accurate NS mass determination for PSRs in relativistic systems by measuring PK corrections

  • Gravitational redshift may provide M/R in NSs by detecting a known spectral line,

E∞ = E(1-2GM/Rc2)1/2

Neutron stars and white dwarfs



Minimal mass





Compact objects and progenitors. Solar metallicity.



A NS from a massive progenitor



NS+NS binaries



NS+WD binaries



Binary pulsars



Relativistic corrections and measurable parameters



Mass measurements



Double pulsar J0737-3039



Masses for PSR J0737-3039



Mass determination in binaries: mass function



Some mass estimates



Mass-radius diagram and constraints



Radius determination in bursters



Combination of different methods



New results



Fe K lines from accretion discs



Limits on the moment of inertia



Most rapidly rotating PSR



Rotation and composition



What is a glitch?



General features of the glitch mechanism



KERS



EoS and glitches



Thermal evolution of NSs



Structure and layers



NS Cooling

  • NSs are born very hot, T > 1010 K

  • At early stages neutrino cooling dominates

  • The core is isothermal



Core-crust temperature relation



Cooling depends on:





Main neutrino processes



Equations



Simple cooling model for low-mass NSs.



Nonsuperfluid nucleon cores



Slow cooling for different EoS



Envelopes and magnetic field



Simplified model: no neutron superfluidity



Minimal cooling model



Luminosity and age uncertainties



Standard test: temperature vs. age



Data



Cooling of X-ray transients



Cooling in soft X-ray transients



Deep crustal heating and cooling



Pycnonuclear reactions



Testing models with SXT



Theory vs. Observations: SXT and isolated cooling NSs



Схожі:

Neutron stars. Lecture 2 Sergei Popov (sai msu) ns masses iconNeutron stars Chapter 21 Neutron stars

Neutron stars. Lecture 2 Sergei Popov (sai msu) ns masses iconIn this talk : Gravitational Waves and Double Neutron Stars

Neutron stars. Lecture 2 Sergei Popov (sai msu) ns masses iconThe Diversity of Young Neutron Stars and Unification Prospects Joanna Bridge

Neutron stars. Lecture 2 Sergei Popov (sai msu) ns masses iconNeutron Stars White dwarf Mass limit for White Dwarf

Neutron stars. Lecture 2 Sergei Popov (sai msu) ns masses iconTiming Relativistic Binary Pulsars to test Gravitation and measure ns masses Paulo C. C. Freire

Neutron stars. Lecture 2 Sergei Popov (sai msu) ns masses iconA. A. Soldatov (rrc ki, Moscow). Consolidation (ME&S, ras, Rosatom, rrc «KI», msu, jinr)

Neutron stars. Lecture 2 Sergei Popov (sai msu) ns masses iconForefront of neutron star science Forefront of neutron star science

Neutron stars. Lecture 2 Sergei Popov (sai msu) ns masses iconNeutron Star Astronomy Roberto Mignani

Neutron stars. Lecture 2 Sergei Popov (sai msu) ns masses iconNeutron Star Normal Modes lsc meeting, Baton Rouge, March 2004 ligo-g040141-00-z b. S. Sathyaprakash and Bernard Schutz

Neutron stars. Lecture 2 Sergei Popov (sai msu) ns masses iconLecture 8: Numerals. Cardinal Numbers. Prices


Додайте кнопку на своєму сайті:
dok.znaimo.com.ua


База даних захищена авторським правом ©dok.znaimo.com.ua 2013
звернутися до адміністрації
dok.znaimo.com.ua
Головна сторінка