VizieR Online Data Catalog: Swift UVOT light curves of ASASSN-15lh (Margutti+, 2017)

We obtained four epochs of deep X-ray observations of ASASSN-15lh with the Chandra X-ray Observatory (CXO) on 2015 November 12 (exposure of 10ks), 2015 December 13 (10ks), 2016 February 20 (40ks), and 2016 August 19 (30 ks, PI Margutti), corresponding to δt=129.4d, δt=154.6, δt=210.5d, and δt=357.8d rest-frame since optical maximum light, which occurred on 2015 June 5.

We reprocessed all the X-ray data collected by the Swift-XRT and all the Swift-UVOT observations obtained from 2015 June 24 until 2016 July 22.

A partial collection of the Swift-UVOT photometry of ASASSN-15lh has already been presented by Dong+ (2016Sci...351..257D), Godoy-Rivera+ (2017MNRAS.466.1428G), Brown+ (2016, J/ApJ/828/3), and Leloudas+ (2016NatAs...1E...2L). Here we update the observations and focus on the presence of significant temporal variability that appears at the time of the rebrightening.

(1 data file).