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We present a multi-band sequence of $Hubble~Space~Telescope$ imagesdocumenting the emergence and evolution of multiple light echoes (LEs) linkedto the stripped-envelope supernova (SN) 2016adj located in the centraldust-lane of Centaurus A. Following point-spread function subtraction, weidentify the earliest LE emission associated with a SN at only $+$34 days (d)past the epoch of $B$-band maximum. Additional HST images extending through$+$578 d cover the evolution of LE1 taking the form of a ring, while imagestaken on $+$1991 d reveals not only LE1, but also segments of a new inner LEring (LE2) as well as two additional outer LE rings (LE3 & LE4). Adopting thesingle scattering formalism, the angular radii of the LEs suggest theyoriginate from discrete dust sheets in the foreground of the SN. Thisinformation, combined with measurements of color and optical depth of thescattering surfaces, informs a scenario with multiple sheets of clumpy dustcharacterized by a varying degree of holes. In this case, the larger the LE'sangular radii, the further in the foreground of the SN its dust sheet islocated. However, an exception to this is LE2, which is formed by a dust sheetlocated in closer proximity to the SN than the dust sheets producing LE1, LE3,and LE4. The delayed appearance of LE2 can be attributed to its dust sheethaving a significant hole along the line-of-sight between the SN and Earth.

the astrophysical journal. letters

$Hubble~Space~Telescope$ Reveals Spectacular Light Echoes Associated  with the Stripped-envelope Supernova 2016adj in the Iconic Dust Lane of  Centaurus A