Possible Identification of the Progenitor of SN 2016adj in NGC 5128 (Centaurus A)

Author(s)

Schuyler D. Van Dyk, Joana Ascenso, Ya-Lin Wu, Nathan Smith, L. Close, Joao Alves

Abstract

We report the identification of the progenitor star of the Type IIb SN 2016adj (ATel #8651, #8663, #8664) in archival Hubble Space Telescope (HST) WFC3/UVIS image data obtained in 2010 July and near-infrared JHKs images obtained in 2008 July with the NAOS+CONICA (NACO) instrument on the ESO VLT UT4-Yepun (PI: J. Alves; see Kainulainen et al. 2009, A & A, 502, L5). We acquired a coadded image of the SN on 2016 February 13 UT in z'-band with the Magellan 6.5-m Clay AO system (MagAO) VisAO camera and registered it (without distortion correction) to the WFC3 image mosaic in F814W (~I-band), using 14 stars in common, to ~0.19 UVIS pixel or ~8 mas. A star with brightness at F814W of 23.1 mag is near to this position (at ~5 sigma) in the HST image.

Organisation(s)

Department of Astrophysics

External organisation(s)

Spitzer Space Telescope, European Southern Observatory (Germany), University of Arizona

Journal

The Astronomer's Telegram

Publication date

02-2016

Austrian Fields of Science 2012

103003 Astronomy, 103004 Astrophysics

Keywords

Portal url

https://ucrisportal.univie.ac.at/en/publications/possible-identification-of-the-progenitor-of-sn-2016adj-in-ngc-5128-centaurus-a(270611bb-4bef-4684-9b21-e67408e0f64b).html