Constraints from LIGO O3 data on gravitational wave emission due to r-modes in the glitching pulsar PSR J0537-6910

Document #:

LIGO-P2100069-v7

Document type:

P - Publications

Abstract:

We present a search for gravitational wave emission due to r-modes in the pulsar PSR J0537-6910, using data from the third observing run of LIGO and Virgo. PSR J0537-6910 is a young energetic X-ray pulsar and is currently the known most frequent glitcher. Furthermore the inter-glitch braking index suggests that gravitational wave emission due to r-modes may play an important role in the spindown of this pulsar. Theoretical models also 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, making use of timing ephemeris obtained from \textit{NICER} data. We do not detect any signals, but report upper limits on the amplitude of the gravitational waves. Our upper limits place stringent constraints on theoretical models for an r-mode driven spin-down in PSR J0537-6910, especially for high frequencies at which our results probe below the spin-down limit.

Files in Document:

• Paper (o3_r_mode_search_v7.pdf, 5.0 MB)

Other Files:

• Upper limits from 5 vector pipeline (j0537-5vector-upper-limits.tar.gz, 1.8 kB)
• Upper limits from F/G statistic pipeline (j0537-tdfstat-master-sensitivity-upper-limits-v2-figure...gz, 4.0 kB)

Topics:

• Continuous Wave

Author Groups:

• LVK

Publication Information:

arXiv:2104.14417