On magnetic-field induced non-geodesic corrections to the
relativistic precession QPO model

D 2008

On magnetic-field induced non-geodesic corrections to the relativistic precession QPO model

BAKALA, Pavel, Zdeněk STUCHLÍK, Eva ŠRÁMKOVÁ a Gabriel TÖRÖK

Základní údaje

Originální název

On magnetic-field induced non-geodesic corrections to the relativistic precession QPO model

Autoři

BAKALA, Pavel, Zdeněk STUCHLÍK, Eva ŠRÁMKOVÁ a Gabriel TÖRÖK

Vydání

Sweden, COOL DISCS, HOT FLOWS: THE VARYING FACES OF ACCRETING COMPACT OBJECTS, 6 s. 2008

Nakladatel

Wenner Gren Fdn; Swedish Res Council; Stockholm Univ

Další údaje

Jazyk

angličtina

Typ výsledku

Stať ve sborníku

Obor

10308 Astronomy

Utajení

není předmětem státního či obchodního tajemství

Organizační jednotka

Filozoficko-přírodovědecká fakulta v Opavě

ISBN

978-0-7354-0584-4

ISSN

UT WoS

000260484300013

Klíčová slova anglicky

neutron stars, X-rays, binaries, magnetic fields

Štítky

FÚ, LC06014, MSM4781305903, sbornik

Příznaky

Mezinárodní význam

Návaznosti

LC06014, projekt VaV. MSM4781305903, záměr.

Změněno: 7. 12. 2020 10:43, Mgr. Pavlína Jalůvková

Anotace

V originále

Fitting the observational data of the twin peak kHz quasiperiodic oscillations (QPO) from low mass X-ray binaries (LMXBs) by the relativistic precession model gives a substantially higher neutron star mass estimate, M similar to 2 M-circle dot, than the"canonical value", M similar to 1.4 M-circle dot. Using a fully general relativistic approach we discuss the non-geodesic corrections to the orbital and epicyclic frequencies of slightly charged circularly orbiting test particles caused by the presence of a neutron star magnetic field. We show that consideration of such non-geodesic corrections can bring down the neutron star mass estimate and improve the quality of twin peak QPO data fits based on relativistic precession frequency relations.

Citovat

BAKALA, Pavel, Zdeněk STUCHLÍK, Eva ŠRÁMKOVÁ a Gabriel TÖRÖK. On magnetic-field induced non-geodesic corrections to the relativistic precession QPO model. In COOL DISCS, HOT FLOWS: THE VARYING FACES OF ACCRETING COMPACT OBJECTS. Sweden: Wenner Gren Fdn; Swedish Res Council; Stockholm Univ, 2008, 6 s. ISBN 978-0-7354-0584-4.

@inproceedings{42089,
   author = {Bakala, Pavel and Stuchlík, Zdeněk and Šrámková, Eva and Török, Gabriel},
   address = {Sweden},
   booktitle = {COOL DISCS, HOT FLOWS: THE VARYING FACES OF ACCRETING COMPACT OBJECTS},
   keywords = {neutron stars, X-rays, binaries, magnetic fields},
   language = {eng},
   location = {Sweden},
   isbn = {978-0-7354-0584-4},
   publisher = {Wenner Gren Fdn; Swedish Res Council; Stockholm Univ},
   title = {On magnetic-field induced non-geodesic corrections to the relativistic precession QPO model},
   year = {2008}
}

TY  - JOUR
ID  - 42089
AU  - Bakala, Pavel - Stuchlík, Zdeněk - Šrámková, Eva - Török, Gabriel
PY  - 2008
TI  - On magnetic-field induced non-geodesic corrections to the relativistic precession QPO model
PB  - Wenner Gren Fdn; Swedish Res Council; Stockholm Univ
CY  - Sweden
SN  - 9780735405844
KW  - neutron stars, X-rays, binaries, magnetic fields
N2  - Fitting the observational data of the twin peak kHz quasiperiodic oscillations (QPO) from low mass X-ray binaries (LMXBs) by the relativistic precession model gives a substantially higher neutron star mass estimate, M similar to 2 M-circle dot, than the"canonical value", M similar to 1.4 M-circle dot. Using a fully general relativistic approach we discuss the non-geodesic corrections to the orbital and epicyclic frequencies of slightly charged circularly orbiting test particles caused by the presence of a neutron star magnetic field. We show that consideration of such non-geodesic corrections can bring down the neutron star mass estimate and improve the quality of twin peak QPO data fits based on relativistic precession frequency relations.
ER  -

BAKALA, Pavel, Zdeněk STUCHLÍK, Eva ŠRÁMKOVÁ a Gabriel TÖRÖK. On magnetic-field induced non-geodesic corrections to the relativistic precession QPO model. In \textit{COOL DISCS, HOT FLOWS: THE VARYING FACES OF ACCRETING COMPACT OBJECTS}. Sweden: Wenner Gren Fdn; Swedish Res Council; Stockholm Univ, 2008, 6 s. ISBN~978-0-7354-0584-4.

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