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Related papers: The ZTF Source Classification Project: III. A Cata…

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The Zwicky Transient Facility (ZTF) survey generates real-time alerts for optical transients, variables, and moving objects discovered in its wide-field survey. We describe the ZTF alert stream distribution and processing (filtering)…

When planning a survey for astronomical transients, many factors such as cadence, filter choice, sky coverage, and depth of observations need to be balanced in order to optimize the scientific gain of the survey. Here we present a software…

Instrumentation and Methods for Astrophysics · Physics 2019-10-09 Ulrich Feindt , Jakob Nordin , Mickael Rigault , Valéry Brinnel , Suhail Dhawan , Ariel Goobar , Marek Kowalski

The Bright Transient Survey (BTS) aims to obtain a classification spectrum for all bright ($m_\mathrm{peak}\,\leq\,18.5\,$mag) extragalactic transients found in the Zwicky Transient Facility (ZTF) public survey. BTS critically relies on…

The Zwicky Transient Facility (ZTF) is a next-generation optical synoptic survey that builds on the experience and infrastructure of the Palomar Transient Factory (PTF). Using a new 47 deg$^2$ survey camera, ZTF will survey more than an…

Instrumentation and Methods for Astrophysics · Physics 2014-10-31 Eric C. Bellm

We report the automatic detection of 11 transients (7 possible supernovae and 4 active galactic nuclei candidates) within the Zwicky Transient Facility fourth data release (ZTF DR4), all of them observed in 2018 and absent from public…

Instrumentation and Methods for Astrophysics · Physics 2022-06-01 P. D. Aleo , K. L. Malanchev , M. V. Pruzhinskaya , E. E. O. Ishida , E. Russeil , M. V. Kornilov , V. S. Korolev , S. Sreejith , A. A. Volnova , G. S. Narayan

Using the second data release from the Zwicky Transient Facility (ZTF, Bellm et al. 2019), Chen et al. (2020) created a ZTF Catalog of Periodic Variable Stars (ZTF CPVS) of 781, 602 periodic variables stars (PVSs) with 11 class labels.…

Instrumentation and Methods for Astrophysics · Physics 2021-12-09 Siu-Hei Cheung , V. Ashley Villar , Ho-Sang Chan , Shirley Ho

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$^2$ field of view and 8 second readout time. It is well…

Instrumentation and Methods for Astrophysics · Physics 2019-05-29 Matthew J. Graham , S. R. Kulkarni , Eric C. Bellm , Scott M. Adams , Cristina Barbarino , Nadejda Blagorodnova , Dennis Bodewits , Bryce Bolin , Patrick R. Brady , S. Bradley Cenko , Chan-Kao Chang , Michael W. Coughlin , Kishalay De , Gwendolyn Eadie , Tony L. Farnham , Ulrich Feindt , Anna Franckowiak , Christoffer Fremling , Avishay Gal-yam , Suvi Gezari , Shaon Ghosh , Daniel A. Goldstein , V. Zach Golkhou , Ariel Goobar , Anna Y. Q. Ho , Daniela Huppenkothen , Zeljko Ivezic , R. Lynne Jones , Mario Juric , David L. Kaplan , Mansi M. Kasliwal , Michael S. P. Kelley , Thomas Kupfer , Chien-De Lee , Hsing Wen Lin , Ragnhild Lunnan , Ashish A. Mahabal , Adam A. Miller , Chow-Choong Ngeow , Peter Nugent , Eran O. Ofek , Thomas A. Prince , Ludwig Rauch , Jan van Roestel , Steve Schulze , Leo P. Singer , Jesper Sollerman , Francesco Taddia , Lin Yan , Quan-Zhi Ye , Po-Chieh Yu , Igor Andreoni , Tom Barlow , James Bauer , Ron Beck , Justin Belicki , Rahul Biswas , Valery Brinnel , Tim Brooke , Brian Bue , Mattia Bulla , Kevin Burdge , Rick Burruss , Andrew Connolly , John Cromer , Virginia Cunningham , Richard Dekany , Alex Delacroix , Vandana Desai , Dmitry A. Duev , Eugean Hacopians , David Hale , George Helou , John Henning , David Hover , Lynne A. Hillenbrand , Justin Howell , Tiara Hung , David Imel , Wing-Huen Ip , Edward Jackson , Shai Kaspi , Stephen Kaye , Marek Kowalski , Emily Kramer , Michael Kuhn , Walter Landry , Russ R. Laher , Peter Mao , Frank J. Masci , Serge Monkewitz , Patrick Murphy , Jakob Nordin , Maria T. Patterson , Bryan Penprase , Michael Porter , Umaa Rebbapragada , Dan Reiley , Reed Riddle , Mickael Rigault , Hector Rodriguez , Ben Rusholme , Jakob van Santen , David L. Shupe , Roger M. Smith , Maayane T. Soumagnac , Robert Stein , Jason Surace , Paula Szkody , Scott Terek , Angela van Sistine , Sjoert van Velzen , W. Thomas Vestrand , Richard Walters , Charlotte Ward , Chaoran Zhang , Jeffry Zolkower

Here we present a catalog of 12,993 photometrically-classified supernova-like light curves from the Zwicky Transient Facility, along with candidate host galaxy associations. By training a random forest classifier on spectroscopically…

High Energy Astrophysical Phenomena · Physics 2022-02-21 Braden Garretson , Dan Milisavljevic , Jack Reynolds , Kathryn E. Weil , Bhagya Subrayan , John Banovetz , Rachel Lee

Microlensing surveys have discovered thousands of events with almost all events discovered within the Galactic bulge or toward the Magellanic clouds. The Zwicky Transient Facility (ZTF), while not designed to be a microlensing campaign, is…

Solar and Stellar Astrophysics · Physics 2021-02-23 Michael S. Medford , Jessica R. Lu , William A. Dawson , Casey Y. Lam , Nathan R. Golovich , Edward F. Schlafly , Peter Nugent

The rate of image acquisition in modern synoptic imaging surveys has already begun to outpace the feasibility of keeping astronomers in the real-time discovery and classification loop. Here we present the inner workings of a framework,…

Instrumentation and Methods for Astrophysics · Physics 2015-05-28 J. S. Bloom , J. W. Richards , P. E. Nugent , R. M. Quimby , M. M. Kasliwal , D. L. Starr , D. Poznanski , E. O. Ofek , S. B. Cenko , N. R. Butler , S. R. Kulkarni , A. Gal-Yam , N. Law

Wide-field time domain facilities detect transient events in large numbers through difference imaging. For example, Zwicky Transient Facility produces alerts for hundreds of thousands of transient events per night, a rate set to be dwarfed…

Solar and Stellar Astrophysics · Physics 2022-10-12 D. Mistry , C. M. Copperwheat , M. J. Darnley , I. Olier

Efficient automated detection of flux-transient, reoccurring flux-variable, and moving objects is increasingly important for large-scale astronomical surveys. We present braai, a convolutional-neural-network, deep-learning real/bogus…

The Zwicky Transient Facility (ZTF) is a new optical time-domain survey that uses the Palomar 48-inch Schmidt telescope. A custom-built wide-field camera provides a 47 deg$^2$ field of view and 8 second readout time, yielding more than an…

Instrumentation and Methods for Astrophysics · Physics 2019-02-07 Eric C. Bellm , Shrinivas R. Kulkarni , Matthew J. Graham , Richard Dekany , Roger M. Smith , Reed Riddle , Frank J. Masci , George Helou , Thomas A. Prince , Scott M. Adams , C. Barbarino , Tom Barlow , James Bauer , Ron Beck , Justin Belicki , Rahul Biswas , Nadejda Blagorodnova , Dennis Bodewits , Bryce Bolin , Valery Brinnel , Tim Brooke , Brian Bue , Mattia Bulla , Rick Burruss , S. Bradley Cenko , Chan-Kao Chang , Andrew Connolly , Michael Coughlin , John Cromer , Virginia Cunningham , Kishalay De , Alex Delacroix , Vandana Desai , Dmitry A. Duev , Gwendolyn Eadie , Tony L. Farnham , Michael Feeney , Ulrich Feindt , David Flynn , Anna Franckowiak , S. Frederick , C. Fremling , Avishay Gal-Yam , Suvi Gezari , Matteo Giomi , Daniel A. Goldstein , V. Zach Golkhou , Ariel Goobar , Steven Groom , Eugean Hacopians , David Hale , John Henning , Anna Y. Q. Ho , David Hover , Justin Howell , Tiara Hung , Daniela Huppenkothen , David Imel , Wing-Huen Ip , Željko Ivezić , Edward Jackson , Lynne Jones , Mario Juric , Mansi M. Kasliwal , S. Kaspi , Stephen Kaye , Michael S. P. Kelley , Marek Kowalski , Emily Kramer , Thomas Kupfer , Walter Landry , Russ R. Laher , Chien-De Lee , Hsing Wen Lin , Zhong-Yi Lin , Ragnhild Lunnan , Matteo Giomi , Ashish Mahabal , Peter Mao , Adam A. Miller , Serge Monkewitz , Patrick Murphy , Chow-Choong Ngeow , Jakob Nordin , Peter Nugent , Eran Ofek , Maria T. Patterson , Bryan Penprase , Michael Porter , Ludwig Rauch , Umaa Rebbapragada , Dan Reiley , Mickael Rigault , Hector Rodriguez , Jan van Roestel , Ben Rusholme , Jakob van Santen , S. Schulze , David L. Shupe , Leo P. Singer , Maayane T. Soumagnac , Robert Stein , Jason Surace , Jesper Sollerman , Paula Szkody , F. Taddia , Scott Terek , Angela Van Sistine , Sjoert van Velzen , W. Thomas Vestrand , Richard Walters , Charlotte Ward , Quan-Zhi Ye , Po-Chieh Yu , Lin Yan , Jeffry Zolkower

We present DeepStreaks, a convolutional-neural-network, deep-learning system designed to efficiently identify streaking fast-moving near-Earth objects that are detected in the data of the Zwicky Transient Facility (ZTF), a wide-field,…

The Bright Transient Survey (BTS) relies on visual inspection ("scanning") to select sources for accomplishing its mission of spectroscopically classifying all bright extragalactic transients found by the Zwicky Transient Facility (ZTF). We…

Instrumentation and Methods for Astrophysics · Physics 2025-06-05 Nabeel Rehemtulla , Adam A. Miller , Michael W. Coughlin , Theophile Jegou du Laz

Microlensing events have historically been discovered throughout the Galactic bulge and plane by surveys designed solely for that purpose. We conduct the first multi-year search for microlensing events on the Zwicky Transient Facility…

Astrophysics of Galaxies · Physics 2023-04-26 Michael S. Medford , Natasha S. Abrams , Jessica R. Lu , Peter Nugent , Casey Y. Lam

The forthcoming launch of the Ultraviolet Transient Astronomy Satellite (ULTRASAT) will transform our understanding of the transient ultraviolet sky by increasing our ability to identify transients due to its unprecedented 204 deg2 field of…

We explore the use of Swin Transformer V2, a pre-trained vision Transformer, for photometric classification in a multi-survey setting by leveraging light curves from the Zwicky Transient Facility (ZTF) and the Asteroid Terrestrial-impact…

The search for fast optical transients, such as the expected electromagnetic counterparts to binary neutron star mergers, is riddled with false positives ranging from asteroids to stellar flares. While moving objects are readily rejected…

Instrumentation and Methods for Astrophysics · Physics 2017-03-23 A. A. Miller , M. K. Kulkarni , Y. Cao , R. R. Laher , F. J. Masci , J. A. Surace