We present a search for continuous gravitational-wave emission due to r-modes in the pulsar PSR J0537-6910 using data from the LIGO-Virgo Collaboration observing run O3. PSR J0537-6910 is a young energetic X-ray pulsar and is the most frequent glitcher known. The inter-glitch braking index of the pulsar suggests that gravitational-wave emission due to r-mode oscillations may play an important role in the spin evolution of this pulsar. Theoretical models confirm this possibility and predict emission at a level that can be probed by ground-based detectors. In order to explore this scenario, we search for r-mode emission in the epochs between glitches by using a contemporaneous timing ephemeris obtained from NICER data. We do not detect any signals in the theoretically expected band of 86-97 Hz, and report upper limits on the amplitude of the gravitational waves. Our results improve on previous amplitude upper limits from r-modes in J0537-6910 by a factor of up to 3 and place stringent constraints on theoretical models for r-mode-driven spin-down in PSR J0537-6910, especially for higher frequencies at which our results reach below the spin-down limit defined by energy conservation.

Constraints from LIGO O3 Data on Gravitational-wave Emission Due to R-modes in the Glitching Pulsar PSR J0537-6910 / Abbott, R., Abbott, T.D., Abraham, S., Acernese, F., Ackley, K., Adams, A., Adams, C., Adhikari, R.X., Adya, V.B., Affeldt, C., Agarwal, D., Agathos, M., Agatsuma, K., Aggarwal, N., Aguiar, O.D., Aiello, L., Ain, A., Ajith, P., Akutsu, T., Aleman, K.M., et al.. - In: THE ASTROPHYSICAL JOURNAL. - ISSN 0004-637X. - 922:1(2021), p. 71. [10.3847/1538-4357/ac0d52]

Constraints from LIGO O3 Data on Gravitational-wave Emission Due to R-modes in the Glitching Pulsar PSR J0537-6910

Di Pace S.;Di Palma I.;Drago M.;Leaci P.;Majorana E.;Mangano V.;Muciaccia F.;Naticchioni L.;Pannarale F.;Pierini L.;Placidi E.;Salemi F.;
2021

Abstract

We present a search for continuous gravitational-wave emission due to r-modes in the pulsar PSR J0537-6910 using data from the LIGO-Virgo Collaboration observing run O3. PSR J0537-6910 is a young energetic X-ray pulsar and is the most frequent glitcher known. The inter-glitch braking index of the pulsar suggests that gravitational-wave emission due to r-mode oscillations may play an important role in the spin evolution of this pulsar. Theoretical models confirm this possibility and predict emission at a level that can be probed by ground-based detectors. In order to explore this scenario, we search for r-mode emission in the epochs between glitches by using a contemporaneous timing ephemeris obtained from NICER data. We do not detect any signals in the theoretically expected band of 86-97 Hz, and report upper limits on the amplitude of the gravitational waves. Our results improve on previous amplitude upper limits from r-modes in J0537-6910 by a factor of up to 3 and place stringent constraints on theoretical models for r-mode-driven spin-down in PSR J0537-6910, especially for higher frequencies at which our results reach below the spin-down limit defined by energy conservation.
2021
Gravitational waves; Neutron stars; Pulsars
01 Pubblicazione su rivista::01a Articolo in rivista
Constraints from LIGO O3 Data on Gravitational-wave Emission Due to R-modes in the Glitching Pulsar PSR J0537-6910 / Abbott, R., Abbott, T.D., Abraham, S., Acernese, F., Ackley, K., Adams, A., Adams, C., Adhikari, R.X., Adya, V.B., Affeldt, C., Agarwal, D., Agathos, M., Agatsuma, K., Aggarwal, N., Aguiar, O.D., Aiello, L., Ain, A., Ajith, P., Akutsu, T., Aleman, K.M., et al.. - In: THE ASTROPHYSICAL JOURNAL. - ISSN 0004-637X. - 922:1(2021), p. 71. [10.3847/1538-4357/ac0d52]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1624098
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