VizieR Online Data Catalog: iPTF 16asu photometry follow-up (Whitesides+, 2017)

iPTF 16asu was discovered by the intermediate Palomar Transient Factory and was first detected in data taken with the 48" Samuel Oschin Telescope at the Palomar Observatory (P48) on 2016 May 11.26 UT. We obtained a spectrum with the Double Beam Spectrograph (DBSP) on the 200" Hale Telescope at the Palomar Observatory (P200) on 2016 May 14.3. A later spectrum taken on 2016 June 04 by the Deep Imaging Multi-object Spectrograph (DEIMOS) on the 10m Keck II Telescope on 2016 Jun 04 shows SN features consistent with an SN Ic-BL.

iPTF 16asu was detected in a nightly cadence g band experiment with iPTF, and we therefore have P48 data covering the time up to explosion as well as the early rise. Subsequent photometry was obtained with the automated 60" telescope at Palomar (P60) in the gri bands.

Our last photometric observation came from the 3.58m Telescopio Nazionale Galileo (TNG).

We obtained a sequence of eight low-resolution spectra, spanning 2016 May to 2017 Apr, for iPTF 16asu using the DBSP on P200, the Andalucia Faint Object Spectrograph and Camera (ALFOSC) on the 2.56m Nordic Optical Telescope (NOT), the Device Optimized for the Low Resolution (DOLORES) on TNG, the Low-resolution Imaging Spectrometer (LRIS) on Keck I, and the DEIMOS on the 10m Keck II Telescope.

We observed the field of iPTF 16asu with the Karl G. Jansky Very Large Array (VLA) on two epochs (Program VLA/16B-043; PI: A. Corsi). The first observation was carried out starting on 2016 June 13, 01:18:22 UT (MJD 57552), with the VLA in its B configuration. The second observation was carried out with the VLA in its A configuration, starting on 2017 January 10, 09:43:06 UT (MJD 57763).

Three epochs of Swift UVOT and XRT data were obtained at phases corresponding to 7.4, 13.4, and 19.2 days after explosion.

(1 data file).