VERITAS very high energy gamma-ray observations of LS V +44 17 during the 2023 outburst

ATel #15892; Amy Furniss (Cal State East Bay, UC Santa Cruz) for the VERITAS Collaboration
on 7 Feb 2023; 21:52 UT
Credential Certification: Amy Furniss (afurniss@ucsc.edu)

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The VERITAS collaboration reports upper limits on the very high energy gamma-ray flux (>200 GeV) from the location of the Be/X-ray binary pulsar LS V +44 17 during its recent X-ray outburst (ATel #15835). VERITAS obtained 10.5 hours of observations from 24 Jan 2023 to 27 Jan 2023. Analysis of the VERITAS data at the position of LS V +44 17 results in no detection, corresponding to a flux upper limit at 99% confidence level of F(>200 GeV) < 2.1 x 10^-12 cm^-2 s^-1, or approximately 1% of the Crab Nebula flux. Questions regarding VERITAS observations should be directed to the VERITAS spokesperson Amy Furniss (afurniss@ucsc.edu). VERITAS (the Very Energetic Radiation Imaging Telescope Array System) is located at the Fred Lawrence Whipple Observatory in southern Arizona, USA, and is most sensitive to gamma rays between ~85 GeV and ~30 TeV. For further information see the VERITAS web site.

VERITAS Web Site