[vsnet-grb-info 23822] LIGO/Virgo S190930t: Palomar 200-in DBSP follow-up of ZTF19acbpqlh and ATLAS19wyn

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  25921
SUBJECT: LIGO/Virgo S190930t: Palomar 200-in DBSP follow-up of ZTF19acbpqlh and ATLAS19wyn
DATE:    19/10/02 07:58:46 GMT
FROM:    Kishalay De at Caltech, GROWTH  <kde at astro.caltech.edu>

V. Karambelkar, K. De, J. Van Roestel, M. M. Kasliwal (Caltech)
On behalf of the Zwicky Transient Facility (ZTF) and Global Relay of
Observatories Watching Transients Happen (GROWTH) collaborations

On 2019 Oct 2 UT, we obtained spectra of ZTF19acbpqlh/AT2019rpn and
ATLAS19wyn/AT2019rpj (Stein et al. GCN 25899) with the Double Beam
Spectrograph on the Palomar 200-in telescope. For ATLAS19wyn, we
identify strong Balmer P-Cygni features at z~0.03 and classify as a
young Type II supernova. For ZTF19acbpqlh, we see a blue, mostly
featureless continuum with a tentative identification of a weak, broad
feature around H-alpha suggesting this may also be a core-collapse
supernova.