HiPSCat meeting 2024-02-02
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Melissa DeLucchi
Jan 29, 2024, 1:18:35 PM1/29/24
to hipsc...@googlegroups.com, Kiessling, Alina A (3266), Faisst, Andreas, antara.r....@nasa.gov, Bernie Shiao, Brian Hayden, Brian McLean, bsi...@gmail.com, Carlos Adean, ctsl...@uw.edu, David Shupe, Erik Tollerud, fxpi...@gmail.com, gp...@ipac.caltech.edu, Jeremy Kubica, Julia Gschwend, ldacosta, mju...@uw.edu, Max West, Melissa DeLucchi, Rick White, Samuel Dillon Wyatt, Sean McGuire, Sharon Shen, gwyn...@gmail.com, sgr...@ipac.caltech.edu, Steve Lubow, Susan Mullally, Tom Donaldson, Travis Berger, Raen, Troy J., Vandana Desai, msan...@stsci.edu, fri...@slac.stanford.edu, ga...@slac.stanford.edu, Wilson, Tom J., nca...@uw.edu
We'll be meeting this Friday, 1pm eastern, 10am pacific, 3pm Belem. Andy Tzanidakis from UW will be talking to us about REAL SCIENCE he's been doing on ZTF data with HiPSCat and LSDB.
I will try to record and make the recording and any notes available shortly after the meeting.
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Melissa DeLucchi (duh-LOO-kee)
she/they
Melissa DeLucchi
Feb 5, 2024, 11:39:13 AM2/5/24
to hipsc...@googlegroups.com, atza...@uw.edu, Kiessling, Alina A (3266), Faisst, Andreas, antara.r....@nasa.gov, Bernie Shiao, Brian Hayden, Brian McLean, bsi...@gmail.com, Carlos Adean, ctsl...@uw.edu, David Shupe, Erik Tollerud, fxpi...@gmail.com, gp...@ipac.caltech.edu, Jeremy Kubica, Julia Gschwend, ldacosta, mju...@uw.edu, Max West, Rick White, Samuel Dillon Wyatt, Sean McGuire, Sharon Shen, gwyn...@gmail.com, sgr...@ipac.caltech.edu, Steve Lubow, Susan Mullally, Tom Donaldson, Travis Berger, Raen, Troy J., Vandana Desai, msan...@stsci.edu, fri...@slac.stanford.edu, ga...@slac.stanford.edu, Wilson, Tom J., nca...@uw.edu
Thank you again to Andy for a great talk!
We conducted the largest systematic search for KIC 8462852 (Boyajian et al. 2016) analogs with over 4 million FG main sequence stars selected from Gaia DR3 and crossmatched to the Zwicky Transient Facility (ZTF) survey. We provide a statistical framework, including a dipper detection algorithm for sparse multi-band photometry to recover possible anomalous dimming events. Our study explores the use of Dynamic Time Warping (DTW) to perform a K-means light curve clustering via the DTW cost function, of possible Boyajian star analogs discovered by ZTF. Finally, we perform a sensitivity analysis using our dipper detection framework using Timeseries Analysis & Processing Engine (TAPE), and with the original Kepler data from the Boyajian star dimming events mapped to real ZTF observations utilizing its cadence, depth, and noise floor.
Passcode: R*K@g4uh
Slides: https://slides.com/andytzan/deck-6871d7/fullscreen
Github repo: https://github.com/dirac-institute/ZTF_FG_BoyajianSearch
Abstract for the talk by Anastasios Tzanidakis
We conducted the largest systematic search for KIC 8462852 (Boyajian et al. 2016) analogs with over 4 million FG main sequence stars selected from Gaia DR3 and crossmatched to the Zwicky Transient Facility (ZTF) survey. We provide a statistical framework, including a dipper detection algorithm for sparse multi-band photometry to recover possible anomalous dimming events. Our study explores the use of Dynamic Time Warping (DTW) to perform a K-means light curve clustering via the DTW cost function, of possible Boyajian star analogs discovered by ZTF. Finally, we perform a sensitivity analysis using our dipper detection framework using Timeseries Analysis & Processing Engine (TAPE), and with the original Kepler data from the Boyajian star dimming events mapped to real ZTF observations utilizing its cadence, depth, and noise floor.
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