The Photometric and Spectroscopic Evolution of Rapidly Evolving Extragalactic Transients in ZTF
@inproceedings{Ho2021ThePA,
title={The Photometric and Spectroscopic Evolution of Rapidly Evolving Extragalactic Transients in ZTF},
author={Anna Y. Q. Ho and Daniel A. Perley and Avishay Gal-yam and Ragnhild Lunnan and Jesper Sollerman and Steve Schulze and Kaustav K. Das and Dougal Dobie and Yuhan Yao and Christoffer U. Fremling and Scott M. Adams and Shreya Anand and Igor Andreoni and Eric C. Bellm and Rachel J. Bruch and Kevin B Burdge and Alberto J. Castro-Tirado and Aishwarya S. Dahiwale and Kishalay De and Richard Dekany and Andrew J. Drake and D. Duev and Matthew J. Graham and George Helou and David L. Kaplan and Viraj R. Karambelkar and Mansi M. Kasliwal and Erik C. Kool and Shrinivas R. Kulkarni and Ashish A. Mahabal and Michael S. Medford and Adam A. Miller and Jakob Nordin and Eran. O. Ofek and Glen Petitpas and Reed L. Riddle and Yashvi Sharma and Roger M. Smith and Adam J. Stewart and Kirsty Taggart and Leonardo Tartaglia and Anastasios Tzanidakis and Jack M. Winters},
year={2021}
}We present 42 rapidly evolving (time spent above half-maximum brightness t1/2 . 12 d) extragalactic transients from Phase I of the Zwicky Transient Facility (ZTF), of which 22 have spectroscopic classifications. This is one of the largest systematically selected samples of day-timescale transients todate, and the first with spectroscopic classifications. Most can be classified as core-collapse supernovae (SNe), and we identify several predominant subtypes: (1) subluminous Type IIb or Type Ib…
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One Citation
Evidence for a compact object in the aftermath of the extragalactic transient AT2018cow
- PhysicsNature Astronomy
- 2021
Evidence is presented for a high-amplitude quasi-periodic oscillation of AT2018cow’s soft X-rays with a centroid frequency of roughly 225 Hz which argues for the presence of a compact object in AT 2018cow which can either be a neutron star or a black hole, and disfavors circumstellar medium interactions for the origin of X-ray emission.
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