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IPTA Catch-up meeting 2020

A virtual meeting instead of the in-person IPTA 2020 conference

UTC: 22nd and 23rd September


The IPTA 2020 in-person meeting has been postponed until 2021. Instead we will hold a short, virtual "catch-up" meeting.

Dates, Times and Presentations

Links will be provided here to recordings of each of the presentations.

Joining the meeting

Zoom details have been sent by email. Please discuss the live presentations and the contributed talks/posters/pdfs on the IPTA slack channel at #ipta_virtual_meeting_2020 and #talks. Please check your email for details on how to join this channel.

Contributed presentations, posters and discussion

Any IPTA member may record a short (<10 minute) presentation or submit slides or a poster. Please contact George Hobbs for more details. These talks will be made available here.
Bence Becsy, Neil CornishPosterJoint search for bright binaries and a stochastic background in PTA Data
Andrew Casey-Clyde, Chiara Mingarelli, Kris PardoPresentationConstraining Supermassive Black Hole Binary Populations with PTAs
Katie Cella, Stephen Taylor, Luke KelleySlidesHost Galaxy Properties of PTA Detectable SMBHBs Using Illustris
Malgorzata Curylo, Tomasz BulikPosterProbing black hole merger history with gravitational waves
Shantanu DesaiSet of slidesGalactic and Extra-galactic Shapiro delay
Timothy DolchpptxDeconvolving Pulsar Signals with Cyclic Spectroscopy: A Systematic Evaluation
Jeffrey Hazborn10 minute presentation (hosted on YouTube)Model Dependence of Bayesian Gravitational Wave Background Statistics for PTAs
George Hobbs, Jimi GreenShort pdf with 4 slidesPlanned instrumental upgrades for the Parkes radio telescope
Marcus LowerPosterCharacterising rotational irregularities in the radio pulsar population wih UTMOST
Rami MandowWebpage linkAdvertising your work with Space Australia
Dhruv PathakSet of slidesDynamical effects in second derivative of spin and orbital frequency of radio pulsars
Daniel ReardonpdfPrecision orbital dynamics from interstellar scintillation arcs for PSR J0437-4715
Levi SchultpresentationIncoherent PTA dataset combination + IPTADR2 Analyses
Abhimanyu SusobhananSet of slidespinta: A uGMRT pulsar pipeline
Qiaohong (Joanna) Wang, Stephen TaylorSlidesOutlier Detection in Bayesian Hierarchical Models with Gibbs Sampling
Shuangqiang WangSlidesSingle pulse study of a millisecond pulsar PSR J0621+1002 using FAST
Chengcheng XinVideo presentation and pdfA toolkit for multi-messenger gravitational wave astrophysics with PTA (video)
A toolkit for multi-messenger gravitational wave astrophysics with PTA (pdf)
Xingjiang ZhuADS paper linkZhu & Thrane (2020), ApJ, "Toward the Unambiguous Identification of Supermassive Binary Black Holes through Bayesian Inference"

Please discuss the live presentations and these contributed talks/posters/pdfs on the IPTA slack channel at #ipta_virtual_meeting_2020. Please check your email for details on how to join this channel.

Live sessions

Some speakers have provided links to their presentations.

Session 1

Session chair: Boris Goncharov

1.1 Welcome: George Hobbs (10 min)
The gravitational wave landscape: Hannah Middleton (20 min)
PPTA overview: Daniel Reardon (15 min)
Wide-band timing with the Parkes UWL receiver: Malgorzata Curylo (15 min)
22 Sep. 08:0022 Sep. 18:0022 Sep. 04:0022 Sep. 13:30
1.2 SKA-PTA estimation: Yi Feng (15 min)
InPTA overview: Bhal Chandra Joshi (15 min)
Updates of nano-Hz GW emitting BH binary in blazar OJ 287: Lankeswar Dey (15 min)
22 Sep. 09:0022 Sep. 19:0022 Sep. 05:0022 Sep. 14:30
1.3 Overview of MeerKAT: Sarah Buchner (15 min)
Overview of MeerTime: Matthew Bailes (15 min)
What next with MeerTime/MeerKAT? Ryan Shannon (30 min)
Buchner and Bailes
Shannon and Reardon
22 Sep. 10:0022 Sep. 20:0022 Sep. 06:0022 Sep. 15:30

Session 2

Session chair: Jane Kaczmarek

2.1 The Parkes ultra-wide-bandwidth receiver: Shi Dai, (15 min)
Noise modelling with the PPTA DR2 data set: Boris Goncharov (15 min)
Q/A on posters/contributed talks chaired by George Hobbs (30 min)
Contribution discussion
23 Sep. 00:0023 Sep. 10:0022 Sep. 20:0023 Sep. 05:30
2.2 Discussion on emerging PTAs: chaired by Bhal Chandra Joshi (30 min)
CPTA overview: KJ Lee (15 min)
The 120m radio telescope: Min Wang (15 min)
23 Sep. 01:0023 Sep. 11:0022 Sep. 21:0023 Sep. 06:30
2.3 Precision DM measurements using uGMRT: Abhimanyu Susobhanan (15 min)
Effect of scattering on high precision multi-band DM measurements: M. A. Krishna Kumar (15 min)
An update from the IPTASC chair: Xavier Siemens (20 min)
Preparing a NANOGrav 15 yr data set: Joe Swiggum (10 min)
Krishna Kumar
23 Sep. 02:0023 Sep. 12:0022 Sep. 22:0023 Sep. 07:30

Session 3

Session chair: Jeff Hazboun

3.1 EPTA summary and update: Siyuan Chen (24 min)
LEAP/scattering Robert Main (12 min)
SSE (part 1): Aurelien Chalumeau (12 min)
SSE (part 2): Yanjun Guo (12 min)
23 Sep. 19:0024 Sep. 05:0023 Sep. 15:0024 Sep. 00:30
3.2 NANOGrav overview: Tim Pennucci (20 min)
NANOGrav Synergistic Science Megan Jones (10 min)
The NANOGrav 12.5yr Dataset: Megan DeCesar (10 min)
Multi-messenger constraints on 3C66B using the NANOGrav 11-year data set: Caitlin Witt (10 min)
Limits on SMBHB candidates in galaxies within 500 Mpc using the NANOGrav 11-year data set: Maria Charisi (10 min)
23 Sep. 20:0024 Sep. 06:0023 Sep. 16:0024 Sep. 01:30
3.3 IPTA GW Analysis Working Group report: Siyuan Chen (TBC) (15 min)
Data Challenge working group: Jeff Hazboun (15 min)
Discussion around the IPTA DR3: Ryan Shannon et al. (30 min)
Wrap up: George Hobbs (5 min)
23 Sep. 21:0024 Sep. 07:0023 Sep. 17:0024 Sep. 02:30


There is no registration for this meeting. Details will be provided on the IPTA email distribution list. All attendees must abide by the meeting code of conduct

Contact us

Please email George Hobbs for more details. The organising committee is:

Dr George Hobbs (CSIRO)
Dr Ryan Shannon (Swinburne University of Technology)
Dr Michael Lam (Rochester Institute of Technology)
Dr Xavier Siemens (NANOGrav PFC Co-Director)