ZTF Spring Meeting | Paris May 2022

May 9, 2022, 12:00 AM → May 13, 2022, 8:00 PM Europe/Paris

4 Place Jussieu, 75005 Paris

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Location

The ZTF Spring 2022 meeting will be in person in downtown Paris, France from the 10th (see below) to the 13th of May 2022.

The meeting will be located 4 Place Jussieu, 75005 Paris. It is hosted by the LPNHE, the Paris lab of the CNRS/IN2P3.

Zoom connection will be made available for remote access. 

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Slides:

Slides should be uploaded on the dedicated ZTF twiki page:

https://www.oir.caltech.edu/twiki_ptf/bin/view/ZTF/ZTFIITeamMeetingMay2022

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Rooms & Zoom Connections
Please check the guide here

Tuesday the 10th: // Sessions 

• Cosmology | Seminar room (ground floor)
  cnrs.zoom.us/j/98183843363
  Code secret : ZTF2Cosmo

• SN Physics | Salle des conseils (ground floor)
  cnrs.zoom.us/j/94038547016
  Code secret : ZTF2SN

• ML | Neutrino room (first floor)
  cnrs.zoom.us/j/97330162583
  Code secret : ZTF2ML

Wednesday the 11th-> Friday the 12th: Main meeting

•  Amphitheatre Charpak, LPNHE, Tower 22, ground floor
  cnrs.zoom.us/j/91615954682
  Code secret : ZTF2Paris

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Where to eat:

• On Tuesday, you are on your own. Here is a list of places from where you can have lunch.
• On Wed-Fri, there will be lunch boxes delivered by a restaurant nearby. There are nice places around the campus where you can go during lunchbreak: the Seine river banks (7 min walk), the Jardin des Plantes (7 min walk) or the Arenes de Lutece (10 min walk).

Dinner

• 20:30 sharp, Port de l'Arsenal, 50 boulevard de la Bastille,

Hotels

The ZTF Meeting will be in the historical centre of Paris (near the Cathedral, the "Quartier latin", the Pantheon, etc.). Any hotel near Place Jussieu would be good, but be careful, sometime the hotel room in French hotels could be small. The typical price range for decent hotel in Paris is ~100€/night to ~200€/night. 

Note that downtown Paris is not that big and the public transportations works quite well (subway, bus, city-bikes "velib'" etc. )

Here is nonetheless a small list of hotels, these are only examples, check on booking or equivalent for choices :

• http://www.familiahotel.com/ | ~120€/night 
• http://www.hotel-paris-minerve.com/  | ~150€/night
• Hotel Trianon Rive Gauche | ~150€/night
• https://www.hotelvendomesaintgermain.com/fr/ | ~200€/night

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Social events

Social events are being organised. Stay tune

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Visa

If you need a visa to come to France, please contact Nicolas Regnault (nicolas.regnault@lpnhe.in2p3.fr)

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COVID 19 rules.

Please check the official government webpage here: https://www.interieur.gouv.fr/covid-19-international-travel

• Once in France, there are no special regulations anymore even though the mask is recommended and sometime mandatory for health-related shops like Pharmacies. The University recommends wearing mask in small meeting rooms.
   
• To enter France, Please check the official web page:
  But for indication, the 20th of April, the following rules applies
  • For travelers vaccinated within the meaning of European regulations, no more tests is required on departure. Proof of a complete vaccination schedule becomes sufficient to arrive in France, regardless of the country of origin, as was the case before the distribution of the Omicron variant.
     
  • For unvaccinated travellers, the obligation to present a negative test to travel to France remains, but the measures on arrival (test, isolation) are lifted when they come from countries on the "green" list, characterized by a moderate circulation of the virus.
     
  • When unvaccinated travelers come from a country on the "orange" list, they must continue to present a compelling reason justifying the need for them to come to mainland France and may still be subject to a random test on arrival. Travelers who test positive will have to isolate themselves, in accordance with the recommendations of the Health Insurance.
• Check on the official web page for the "color" of your country (most are green)

Check here concerning COVID-19 test prices in France. For non-French antigen tests can be made roughly in every pharmacies for 22€ and results should be available within a couple of hours. If you need a PCR test, you need to schedule it. The best way is through the Doctolib app I beleive. PCR tests are ~50€.

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SOC: Mickael Rigault (head), Jesper Sollerman, Mansi  Kasliwal, Matthew Graham, Adam Miller
LOC: Nicolas Regnault (head), Leander Lacroix, Pierre Antilogus, Guy Augarde

This meeting has received support from ZTF, the IN2P3, the Agence National de la Rechercher and the European Research Council (grant n°759194 - USNAC)

Tue, May 10

9:00 AM → 10:30 AM SWG Parallel sessions: SWG Cosmology

9:00 AM (Cosmo) Who is Who doing What

2 to 3 minutes per person with 1 or 2 slides. Slides should be given in advance

9:30 AM (Cosmo) DR2 Sample | What data do we have (and don't)

10:00 AM (Cosmo) DR2 Sample | How to access the data (tuto)

Speaker: Mickael Rigault (IP2I)

9:00 AM → 10:30 AM SWG Parallel sessions: SWG SN Physics

9:00 AM (SN) Intro

9:30 AM (SN) Flash ionisation features: early time CSM interaction

Speaker: Rachel Bruch

10:00 AM (SN) SLSNI spectra analysis

Speaker: Yan Lin

10:30 AM → 11:00 AM Social Event: Coffee Break

11:00 AM → 12:30 PM SWG Parallel sessions: SWG Cosmology

11:00 AM (Cosmo) DR2 Sample | List of papers discussion

11:45 AM (Cosmo) DR2 Sample | What is missing

12:10 PM (Cosmo) DR2 Sample | What Can you bring

11:00 AM → 12:30 PM SWG Parallel sessions: SWG SN Physics

11:00 AM (SN) SN 2018ibb

Speaker: Steve Schulze

11:30 AM (SN) Low mass end of CC SNe

Speaker: Kaustav Das

12:00 PM (SN) Superluminous SN 2020znr

Speaker: Janet Chen

12:30 PM → 2:00 PM Social Event: free time for Lunch

2:00 PM → 4:00 PM SWG Parallel sessions: ML WG

2:00 PM (ML) Modelling AGN variability

Speaker: Matthew Graham (CalTech)

2:15 PM (ML) Automated classification of SEDM spectra using deep learning

Speaker: Yashvi Sharma

2:30 PM (ML) SNGuess: a method for the selection of young extragalactic transients (remote)

Speaker: Nicolas Miranda

2:45 PM (ML) SCoPe

Speaker: Jan von Roestel

3:15 PM (ML) Real-time SN Ia light curve augmentation to maximize SALT2 constraints (remote)

Speaker: Sravan Sravan

3:30 PM (ML) ZTF Solar System object detection and follow up (remote)

Speaker: Bryce Bolin (B612 Foundation)

3:45 PM (ML) Combining Data Science and STEM with Mobile App ZARTH (remote)

Speaker: Anika Anika

2:00 PM → 3:15 PM SWG Parallel sessions: SWG SN Physics X Cosmology

2:00 PM (SN x Cosmo) Low luminosity lax SNe

Speaker: Viraj Karambelkar

2:25 PM (SN x Cosmo) la-CSM sample

Speaker: Yashvi Sharma

2:50 PM (SN x Cosmo) Overview on SNe Ia Physics Projects

Speaker: Maxime Deckers

3:15 PM → 4:00 PM SWG Parallel sessions: SN Cosmology

3:15 PM (Cosmo) The SNeIa Volume limited Sample

Speaker: Madeleine Ginolin (IP2I)

3:35 PM (Cosmo) AMPEL & Selection Function

Speaker: Jakob Nordin

3:30 PM → 4:00 PM SWG Parallel sessions: SN Physics

3:30 PM (SN) Magnetars

Speaker: Ping Chen

4:00 PM → 4:30 PM Social Event: Coffee Break

4:30 PM → 5:00 PM SWG Parallel sessions: SN Physics

4:30 PM (SN) SNe Ibc from the Bright Transient Survey

4:30 PM → 5:00 PM SWG Parallel sessions: SWG Cosmology

4:30 PM (Cosmo) Selection function affecting fs8

Speaker: Bastien Carreres (CPPM)

fσ8 with SN Ia - ZTF Paris.pdf

4:45 PM (Cosmo) Discussion on fs8 efforts

4:30 PM → 6:00 PM SWG Parallel sessions: WG ML

4:30 PM (ML) Plans

5:15 PM (ML) Discussion

5:00 PM → 6:00 PM SWG Parallel sessions: Cross WG Discussion (SN & Cosmo & BTS)

5:00 PM Common discussions with SNIa and BTS on Light curves and classification

6:30 PM → 8:30 PM Social Event: Welcoming “Cocktail with a view”

Wed, May 11

9:00 AM → 9:10 AM Social Event: Starting

9:10 AM → 10:40 AM Update on SWG: AGN & TDE

Conveners: Ashish Mahabal, Daniel Perley (Liverpool John Moores University)

9:10 AM Update on TDE Results

Speaker: ‪Sjoert van Velzen

9:30 AM Update on AGN

Speaker: Matthew Graham (CalTech)

9:45 AM The X-ray Bright TDE AT2021ehb

Speaker: Yuhan Yao (Caltech)

10:05 AM TDEs with the 3 GHz VLA Sky Survey

Speaker: Jean Somalwar

10:20 AM The Final Season Reimagined: 30 TDEs

Speaker: Erica Hammerstein

10:40 AM → 11:10 AM Social Event: Coffee Break

11:10 AM → 12:40 PM Update on SWG: Multi-Messenger

Conveners: Jesper Sollerman, Mathew Smith (IN2P3)

11:10 AM Update on Neutrino Counterparts

Speakers: Simeon Reusch (DESY), Sjoert van velzen (Leiden University)

11:40 AM Update on GRBs

Speaker: Tomas Ahumada (University of Maryland)

12:00 PM Update on ZTFResT and AT2022cmc

Speaker: Igor Andreoni (Joint Space-Science Institute)

12:20 PM Update on Preparations for the upcoming O4 run

Speakers: Michael Coughlin (University of Minnesota), Shreya Anand (CalTech)

12:40 PM → 2:10 PM Social Event: Lunch

2:10 PM → 2:40 PM ZTF PhDs: PhD Session 1

Conveners: Steve Schulze, Suhail Dhawan

2:10 PM Rachel Bruch | Flash Spectroscopy

Speaker: Rachel Bruch

2:16 PM Melissa Amenouche | ZTF survey simulation

Speaker: Melissa Amenouche (Laboratoire de Physique de Clermont)

2:22 PM Kaustav Das | Low mass end of CC SNe

Speaker: Kaustav Das

2:28 PM Estelle Robert | Estimation of fs8 from SNe Ia

Speaker: Estelle Robert (IP2I)

PhD talk ZTF May 2022.pdf

2:34 PM Signatures of interaction in SNe Ia

Speaker: Jacco Terwel

2:45 PM → 4:00 PM Cross WG activities: Discussion

Conveners: Mickael Rigault (IP2I), Erik Kool (Stockholm University)

2:45 PM Structured discussion | Lightcurve Photometry

3:15 PM Structured discussion | Simulations (simsurvey++)

3:45 PM Structured discussion | Broker (AMPEL, filter, Fritz)

4:00 PM → 4:30 PM Social Event: Discussion over Coffee Break

4:30 PM → 5:00 PM General overview: IPAC

Conveners: Mickael Rigault (IP2I), Erik Kool (Stockholm University)

4:30 PM News from IPAC

Speaker: Ben Rusholme

5:00 PM → 5:30 PM General overview: ZTF-II

Conveners: Steve Schulze, Suhail Dhawan

5:00 PM General overview on ZTF

Speaker: Matthew Graham (CalTech)

8:15 PM → 11:15 PM Social Event: Dinner on river-boat

Thu, May 12

9:00 AM → 10:30 AM Update on SWG: Physics of Supernovae

Conveners: Matthew Graham (CalTech), Leander Lacroix (LPNHE)

9:00 AM General Introduction

Speaker: Jesper Sollerman

9:30 AM Weizmann Precursors, Flash and New telescopes

Speaker: Nora Linn Strojohann

10:00 AM A radio-detected thermonuclear supernova interacting with helium rich circumstellar material

Speaker: Erik Kool (Stockholm University)

ZTF20aatxryt_slides.pdf

10:15 AM Luminous Red Novea and Intermediate Luminosity Red Transients

Speaker: Viraj Karambelkar

10:30 AM → 11:00 AM Social Event: Coffee Break

11:00 AM → 12:30 PM Update on SWG: Cosmology

Conveners: Lin Yan, Sjoert van velzen (Leiden University)

11:00 AM Update on ZTF Cosmo DR2

Speaker: Mathew Smith (IN2P3)

11:30 AM Strongly Lensed SNe Ia Search

Speaker: Ana Sagués Carracedo

11:50 AM SNe Ia Progenitor & "Weirdos"

Speaker: Georgios Dimitriadis

12:10 PM Prospect for Cosmology (H0, w and fs8)

Speaker: Mickael Rigault (IP2I)

12:30 PM → 2:00 PM Social Event: Lunch

2:00 PM → 2:30 PM ZTF PhDs: PhD session 2

Conveners: Sébastien Bongard (LPNHE), Rachel Bruch

2:00 PM Ana Sagués Carracedo | Search of Strongly lensed SNe Ia

Speaker: ana Sagués Carracedo

2:06 PM Yashvi Sharma | Ia-CSM

Speaker: Yashvi Sharma

2:12 PM Alice Townsend | Search for lensed SNe with Ampel

Speaker: Alice Townsend

2:18 PM Madeleine Ginolin | Volume Limited Ia Sample

Speaker: Madeleine Ginolin (IP2I)

ZTF PhD talk.pdf

2:24 PM Bumps in the ZTF Ia sample

Speaker: Maxime Deckers

2:30 PM → 4:00 PM Cross WG activities: Instrument & Calibration

Conveners: Sébastien Bongard (LPNHE), Rachel Bruch

2:30 PM How the hardware misbehaves

Speaker: Roger Smith (California Institute of Technology)

2:55 PM Zubercal | fixing the PSF photometry

Speaker: Andrew Drake

3:05 PM Calibration Overview | from photons to Lightcurve

Speaker: Nicolas Regnault (LPNHE)

3:25 PM ZTF IN2P3 pipeline, where we are

• UberCal
• Flats
• Scene Modelling

Speakers: Benjamin Racine (CPPM/IN2P3/CNRS), Philippe Rosnet (Université Blaise Pascal - CNRS/IN2P3)

4:00 PM → 4:30 PM Social Event: Coffee Break

4:30 PM → 5:00 PM Cross WG activities: Machine Learning

Conveners: Roger Smith, Simeon Reusch (DESY)

5:00 PM → 5:30 PM Cross WG activities: Bright Transient Survey

Conveners: Roger Smith, Simeon Reusch (DESY)

5:00 PM BTS Overview

Speaker: Daniel Perley (Liverpool John Moores University)

ZTFParis_BTS.pptx

5:30 PM → 6:30 PM General overview: ZTF-III discussions

Conveners: Nicolas Regnault (LPNHE), Luke Harvey

5:30 PM Introduction to ZTF-III

Speaker: Shrinivas Kulkarni (Caltech)

5:50 PM ZTF-III Discussion

Fri, May 13

9:00 AM → 10:30 AM Update on SWG: Galactic & M31

Conveners: Marek Kowalski, Young-Lo Kim (Lancaster University)

9:00 AM Overview

Speaker: Jan von Roestel

9:30 AM pulsating white dwarf stars

Speaker: Zach Vanderbosch

9:50 AM Galactic X-ray sources

Speaker: Tony Rodriguez

10:10 AM massive rapidly rotating white dwarfs

Speaker: Ilaria Ciaizzo

10:30 AM → 11:00 AM Social Event: Coffee Break

11:00 AM → 12:30 PM Update on SWG: Solar System Bodies

Conveners: Joel Johansson, Erica Hammerstein

11:00 AM Overview Solar System

Speaker: Bryce Bolin (B612 Foundation)

11:30 AM Cometary outburst

Speaker: Michael Kelley (University of Maryland)

11:50 AM Asteroid phase curve

Speaker: Zhong-Yi Lin

12:10 PM Earth Trojans

Speaker: Travis Yeager

12:30 PM → 2:00 PM Social Event: Lunch

2:00 PM → 2:30 PM ZTF PhDs: PhD Session 3

Conveners: Kate Maguire, Benjamin Racine (CPPM/IN2P3/CNRS)

2:00 PM Bastien Carreres | Bias affecting the derivation of fs8

Speaker: Bastien Carreres (CPPM)

fσ8 with SN Ia - ZTF Paris - PhD talks.pdf

2:06 PM Guy Augarde | SALT++ SNe Ia Lightcurve fitter

Speaker: Guy Augarde (LPNHE)

2:12 PM Erez Zimmerman | To Be Given

Speaker: Erez Zimmerman

2:18 PM Kelian Sommer | SNe Ia 2nd bump

Speaker: Kelian sommer

2:24 PM Spectral modelling of SNe Ia and exotic transients

Speaker: Luke Harvey

2:30 PM → 3:00 PM Cross WG activities: SEDm

Conveners: Kate Maguire, Benjamin Racine (CPPM/IN2P3/CNRS)

3:00 PM → 3:30 PM Cross WG activities: Fritz Discussion

Conveners: Delphine HARDIN (Pierre & Marie Curie University, Paris), Yashvi Sharma

3:30 PM → 4:00 PM General overview: LSST & ZTF

Conveners: Delphine HARDIN (Pierre & Marie Curie University, Paris), Yashvi Sharma

4:00 PM → 4:30 PM Social Event: Concluding Coffee Break

4:30 PM → 5:30 PM General overview: Closing discussion