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Abstract
Recently, LIGO/Virgo announced the catalog of gravitational wave events during the first two observing runs O1 and O2 [GWTC1, arXiv:1811.12907]: 11 highconfidence and 14 marginal events.
INTEGRAL observations are available for 20 out of the 25 events from the complete GWTC1 sample, consistent with the INTEGRAL duty cycle of about 85%. In particular, the observations are available for 7 out of 11 (64%) of the highconfidence gravitational wave events and 13 out of 14 (93%) of the marginal ones.
For each of the observed events, INTEGRAL was sensitive to the entire LIGO/Virgo localization region. Our preliminary search did not reveal any new significant impulsive gammaray counterparts, setting typical upper limits on the 1s peak flux ranging from 1e7 to 1e6 erg/cm2/s in 752000 keV energy range.
Detailed analysis and upper limits will be reported in a forthcoming paper.
INTEGRAL observations are available for 20 out of the 25 events from the complete GWTC1 sample, consistent with the INTEGRAL duty cycle of about 85%. In particular, the observations are available for 7 out of 11 (64%) of the highconfidence gravitational wave events and 13 out of 14 (93%) of the marginal ones.
For each of the observed events, INTEGRAL was sensitive to the entire LIGO/Virgo localization region. Our preliminary search did not reveal any new significant impulsive gammaray counterparts, setting typical upper limits on the 1s peak flux ranging from 1e7 to 1e6 erg/cm2/s in 752000 keV energy range.
Detailed analysis and upper limits will be reported in a forthcoming paper.
Original language  English 

Publication date  7 Dec 2018 
Number of pages  1 
Publication status  Published  7 Dec 2018 
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INTEGRAL followup observations of gravitational wave event candidates from LIGO and VIRGO
Brandt, S. (Project Participant) & Chenevez, J. (Project Participant)
05/04/2014 → …
Project: Research