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Simultaneous observations of the northern TESS sectors by the Zwicky Transient Facility
Jan van Roestel, Eric C. Bellm, Dmitry A. Duev +9
The Zwicky Transient Facility (ZTF) is conducting a nightly public survey of all 13 TESS northern sectors in 2019-2020. ZTF will observe the portions of the current TESS sectors vi…
ZTF Early Observations of Type Ia Supernovae I: Properties of the 2018 Sample
Yuhan Yao, Adam A. Miller, S. R. Kulkarni +32
Early-time observations of Type Ia supernovae (SNe Ia) are essential to constrain their progenitor properties. In this paper, we present high-quality light curves of 127 SNe Ia dis…
Characterization of the Nucleus, Morphology and Activity of Interstellar Comet 2I/Borisov by Optical and Near-Infrared GROWTH, Apache Point, IRTF, ZTF and Keck Observations
Bryce T. Bolin, Carey M. Lisse, Mansi M. Kasliwal +52
We present visible and near-infrared photometric and spectroscopic observations of interstellar object 2I/Borisov taken from 2019 September 10 to 2019 November 29 using the GROWTH,…
SN 2018fif: The Explosion of a Large Red Supergiant Discovered in Its Infancy by the Zwicky Transient Facility
Maayane T. Soumagnac, Noam Ganot, Ido Irani +32
High cadence transient surveys are able to capture supernovae closer to their first light than before. Applying analytical models to such early emission, we can constrain the proge…
Type IIn supernova light-curve properties measured from an untargeted survey sample
A. Nyholm, J. Sollerman, L. Tartaglia +19
We present a sample of supernovae Type IIn (SNe IIn) from the untargeted, magnitude-limited surveys of the Palomar Transient Factory (PTF) and its successor, the intermediate PTF (…
SN 2016hil-- a Type II supernova in the remote outskirts of an elliptical host and its origin
Ido Irani, Steve Schulze, Avishay Gal-Yam +14
Type II supernovae (SNe) stem from the core collapse of massive () stars. Owing to their short lifespan, we expect a very low rate of such events in elliptical host…
Evidence for Late-stage Eruptive Mass-loss in the Progenitor to SN2018gep, a Broad-lined Ic Supernova: Pre-explosion Emission and a Rapidly Rising Luminous Transient
Anna Y. Q. Ho, Daniel A. Goldstein, Steve Schulze +47
We present detailed observations of ZTF18abukavn (SN2018gep), discovered in high-cadence data from the Zwicky Transient Facility as a rapidly rising ( mag/hr) and lumino…
A six year image-subtraction light curve of SN 2010jl
E. O. Ofek, B. Zackay, A. Gal-Yam +9
SN2010jl was a luminous Type IIn supernova (SN), detected in radio, optical, X-ray and hard X-rays. Here we report on its six year R- and g-band light curves obtained using the Pal…
Rapid "Turn-on" of type 1 AGN in a quiescent early type galaxy SDSS1115+0544
Lin Yan, Tinggui Wang, Jiang Ning +8
We present a detailed study of a transient in the center of SDSS1115+0544 based on the extensive UV, optical, mid-IR light curves (LC) and spectra over 1200 days. The host galaxy i…
The Zwicky Transient Facility: Science Objectives
Matthew J. Graham, S. R. Kulkarni, Eric C. Bellm +114
The Zwicky Transient Facility (ZTF), a public-private enterprise, is a new time domain survey employing a dedicated camera on the Palomar 48-inch Schmidt telescope with a 47 deg$^2…