Improving the limits on r-mode oscillations in millisecond pulsars with e-ROSITA data

Not scheduled
20m
TUM Hörsaal/lecture hall 1 (HS 1) (Garching)

TUM Hörsaal/lecture hall 1 (HS 1)

Garching

Technical University Munich (TUM) Boltzmannstraße 3, 85748 Garching

Speakers

Tuğba Boztepe (Istanbul University, Turkey)Ms Rosha Manafzadeh (Istanbul University, Turkey)

Description

Thanks to their rapid rotation, millisecond pulsars are one of the most important sources to search for signatures of r-mode oscillations, which may be used to constrain the composition of neutron stars. This requires measurements or bounds on the surface temperatures of these faint objects. e-ROSITA, onboard Spektrum-Roentgen-Gamma satellite, recently completed the most detailed X-ray survey of the southern sky. We searched for X-ray counterparts of all the millisecond pulsars, spinning at a rate greater than 300 Hz and within 2 kpc, detected in this survey and used the measured soft X-ray fluxes, to put new limits on the amplitude of r-mode oscillations. Our results already give us some promising constraints on the r-mode amplitudes. In this poster we present these results and provide the list of sources for which further deep followup observations may result in important constraints.

Primary author

Tuğba Boztepe (Istanbul University, Turkey)

Co-authors

Ms Rosha Manafzadeh (Istanbul University, Turkey) Mr Kai Schwenzer (Istanbul University, Turkey) Mr Tolga Güver (Istanbul University, Turkey)

Presentation materials

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