ZTF Alerts and Follow-up Stephen Ridgway NOAO Following-up LSST - - PowerPoint PPT Presentation

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LSST Project and Community Workshop 2018 • Tucson • August 13 - 17

#lsst2018

LSST Project and Community Workshop 2018 • Tucson • August 13 - 17

#lsst2018

ZTF Alerts and Follow-up Stephen Ridgway NOAO Following-up LSST Alerts Breakout August 16, 2018

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LSST Project and Community Workshop 2018 • Tucson • August 13 - 17

#lsst2018

The ZTF Survey Project

Zwicky Transient Facility

• A camera and survey with the

Palomar Samuel Oschin Schmidt Telescope

• Sequel to PTF (Palomar

Transient Facility)

• PI: Shri Kulkarni
• Co-PI: Thomas Prince
• Proj Sci: Mathew Graham
• Survey Sci: Eric Bellm
• https://www.ztf.caltech.edu/

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LSST Project and Community Workshop 2018 • Tucson • August 13 - 17

#lsst2018

ZTF Collaborators

• Caltech
• IPAC
• Weizmann Institute for Science
• Oskar Klein Center at Stockholm University
• University of Maryland
• University of Washington,
• Deutsches Elektronen-Synchrotron and Humboldt University
• Los Alamos National Laboratories
• TANGO Consortium of Taiwan
• University of Wisconsin at Milwaukee
• Lawrence Berkeley National Laboratories.

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LSST Project and Community Workshop 2018 • Tucson • August 13 - 17

#lsst2018

NSF MSIP Matching Support

• Enables
• Public ZTF surveys
• Public alert production
• Annual data releases
• First, ~June 2019
• Managed by IPAC
• Annual summer schools.

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LSST Project and Community Workshop 2018 • Tucson • August 13 - 17

#lsst2018

The Zwicky Transient Facility

• A 47 square degree

camera on the Palomar 48- inch Schmidt telescope

• 24K x 24K camera
• Median image quality 2” full

field – 1”/pixel

• Can survey 3750 deg2 per

hour

• Median depth of R=20.5

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LSST Project and Community Workshop 2018 • Tucson • August 13 - 17

#lsst2018

The ZTF Transient Sky Survey

• A 3 year survey in g

and r

• Began June 2018
• Currently producing

up to 100K alerts per night

• Private and public

survey programs and cadences

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LSST Project and Community Workshop 2018 • Tucson • August 13 - 17

#lsst2018

The ZTF Public Survey

• The Northern Sky survey with a pair of visits in g and r

every 3 nights

• The Galactic Plane survey with nightly visits in g and r
• Catalog and images – first release ~June 2019
• Alerts streaming now

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LSST Project and Community Workshop 2018 • Tucson • August 13 - 17

#lsst2018

Options for the ZTF Alert Stream

• Bulk daily download (tar file)
• Selected event publication
• ATEL - http://www.astronomerstelegram.org/
• TNS - https://wis-tns.weizmann.ac.il/
• Kafka feed (Kafka is a platform that is used publish and subscribe to

streams of records) – contact ZTF

• Las Cumbres Observatory web interface - Make Alerts Really

Simple (MARS) - https://mars.lco.global

• LSST-UK transient broker LASAIR - public interface: http://

lasair.roe.ac.uk/candlist/

• (Jan 2019) – ANTARES begins ops with ZTF – watch NOAO

Currents and Proposal Information

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LSST Project and Community Workshop 2018 • Tucson • August 13 - 17

#lsst2018

Snap from LCO MARS Search fields

• JD, Time
• ID
• Filter
• Position (Equat, Gal)
• Nearby Obj
• Mag, sigma
• Delta mag
• Star class

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LSST Project and Community Workshop 2018 • Tucson • August 13 - 17

#lsst2018

Alert Follow-up

• NOAO Telescope Allocation Process
• Currently offering competed community access to LCO 1

and 2-m telescopes

• Shared-risk proposals for follow-up observing on NOAO-

scheduled facilities of ZTF alerts are welcome now

• End-to-end - see Bryan Miller presentation in this session

for details

• ANTARES alert processing
• AEON scheduling
• SOAR Goodman spectrograph access
• Extension to Gemini in development

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LSST Project and Community Workshop 2018 • Tucson • August 13 - 17

#lsst2018

ZTF Community Science Advisory Committee

• Marcel Aguerros (Columbia

University)

• Todd Boroson (LCO)
• Mukremin Kilic (University of

Oklahoma)

• Juna Kollmeier (Carnegie

Observatories)

• Maryam Modjaz (NYY)
• Marc Pinsonneault (Ohio State

University)

• Stephen Ridgway (NOAO).

Please share with us your experience with ZTF and your ambitions for the public survey