New Chandra observations of PG 1116+215 to investigate an extragalactic OVIII WHIM absorption line

This is a short AAS Research Note on the analysis of new Chandra observations of PG 1116+215, for which an extragalactic OVIII WHIM line was reported by Bonamente et al. (2016). The new observations occurred at a time when the source flux was three times lower, and the background was three times higher, than in the earlier observations. The analysis described in this research note show that the new observations are consistent with the old one at the wavelengths of the OVIII WHIM line, and the lower signal-to-noise of the new data did not permit a significant detection of the line in the new data.