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2 results on '"Dahiwale, Aishwarya"'

1. A Search for Extragalactic Fast Blue Optical Transients in ZTF and the Rate of AT2018cow-like Transients

Author

Ho, Anna Y. Q., Perley, Daniel A., Gal-Yam, Avishay, Lunnan, Ragnhild, Sollerman, Jesper, Schulze, Steve, Das, Kaustav K., Dobie, Dougal, Yao, Yuhan, Fremling, Christoffer, Adams, Scott, Anand, Shreya, Andreoni, Igor, Bellm, Eric C., Bruch, Rachel J., Burdge, Kevin B., Castro-Tirado, Alberto J., Dahiwale, Aishwarya, De, Kishalay, Dekany, Richard, Drake, Andrew J., Duev, Dmitry A., Graham, Matthew J., Helou, George, Kaplan, David L., Karambelkar, Viraj, Kasliwal, Mansi M., Kool, Erik C., Kulkarni, S. R., Mahabal, Ashish A., Medford, Michael S., Miller, A. A., Nordin, Jakob, Ofek, Eran, Petitpas, Glen, Riddle, Reed, Sharma, Yashvi, Smith, Roger, Stewart, Adam J., Taggart, Kirsty, Tartaglia, Leonardo, Tzanidakis, Anastasios, and Winters, Jan Martin

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), FOS: Physical sciences, Astrophysics - High Energy Astrophysical Phenomena
Abstract

We present a search for extragalactic fast blue optical transients (FBOTs) during Phase I of the Zwicky Transient Facility (ZTF). We identify 38 candidates with durations above half-maximum light 1 d < t1/2 < 12 d, of which 28 have blue (g-r, Replaced following peer-review process. 46 pages, 20 figures. Accepted for publication in ApJ

Published
2021
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2. The Zwicky Transient Facility Bright Transient Survey. II. A Public Statistical Sample for Exploring Supernova Demographics* * An interactive catalog with all data used in this paper is available at https://sites.astro.caltech.edu/ztf/bts and is updated in real time

Author

Perley, Daniel A, Fremling, Christoffer, Sollerman, Jesper, Miller, Adam A, Dahiwale, Aishwarya S, Sharma, Yashvi, Bellm, Eric C, Biswas, Rahul, Brink, Thomas G, Bruch, Rachel J, De, Kishalay, Dekany, Richard, Drake, Andrew J, Duev, Dmitry A, Filippenko, Alexei V, Gal-Yam, Avishay, Goobar, Ariel, Graham, Matthew J, Graham, Melissa L, Ho, Anna YQ, Irani, Ido, Kasliwal, Mansi M, Kim, Young-Lo, Kulkarni, SR, Mahabal, Ashish, Masci, Frank J, Modak, Shaunak, Neill, James D, Nordin, Jakob, Riddle, Reed L, Soumagnac, Maayane T, Strotjohann, Nora L, Schulze, Steve, Taggart, Kirsty, Tzanidakis, Anastasios, Walters, Richard S, and Yan, Lin

Subjects
astro-ph.HE, Supernovae, Particle and Plasma Physics, Time domain astronomy, Molecular, Nuclear, Catalogs, Surveys, Astronomy & Astrophysics, Atomic, Transient sources, Astronomical and Space Sciences, Physical Chemistry (incl. Structural)
Abstract

We present a public catalog of transients from the Zwicky Transient Facility (ZTF) Bright Transient Survey, a magnitude-limited (m < 19 mag in either the g or r filter) survey for extragalactic transients in the ZTF public stream. We introduce cuts on survey coverage, sky visibility around peak light, and other properties unconnected to the nature of the transient, and show that the resulting statistical sample is spectroscopically 97% complete at -16 mag), 10% in red-sequence galaxies, and 1% in massive ellipticals. We find no significant difference in the luminosity or color distributions between the host galaxies of SNe Type II and SNe Type Ib/c, suggesting that line-driven wind stripping does not play a major role in the loss of the hydrogen envelope from their progenitors. Future large-scale classification efforts with ZTF and other wide-area surveys will provide highquality measurements of the rates, properties, and environments of all known types of optical transients and limits on the existence of theoretically predicted but as yet unobserved explosions.

Published
2020

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