From keir.rogers at fysik.su.se Wed Mar 25 12:46:31 2020 From: keir.rogers at fysik.su.se (Keir Rogers) Date: Wed, 25 Mar 2020 11:46:31 +0000 Subject: [OKC-CosmologyGravity] [OKC C&G] Zoom talk today 13.15 CET Message-ID: <2a27f903511d4eb2b135910cdc3dcb27@fysik.su.se> Dear all, Below is the Zoom link for today's OKC Cosmology & Gravity meeting, where our own Raffaella Capasso will present: Galaxy dynamics in clustersThe phase-space distribution of tracers in galaxy clusters is a powerful tool that can be used to test the mass distribution of dark matter haloes as predicted in large-scale structure cosmological simulations, as well as to provide information about the formation and evolution of cluster member galaxies. Exploiting analytical and numerical tools, I analysed the phase-space distribution of gravitationally interacting N-body systems. I performed a dynamical analysis applying the spherically-symmetric Jeans equation, using the cluster’s member galaxies as tracer of its gravitational potential. I will present the results of this study, performed on a sample of 110 Sunyaev-Zel’dovich effect (SZE) selected galaxy clusters from the South Pole Telescope (SPT). I will compare the resulting dynamical masses to theoretical expectations, and examine the bias between between these masses and the masses inferred from the SZE observable in a flat ΛCDM cosmology consistent with Planck CMB data. Finally, I will show how to extend this analysis to calibrate mass-observable relations, linking the mass of galaxy clusters to readily obtainable observables. Keir Rogers is inviting you to a scheduled Zoom meeting. Topic: OKC C&G Time: Mar 25, 2020 01:15 PM Stockholm Join Zoom Meeting https://stockholmuniversity.zoom.us/j/113172569 Meeting ID: 113 172 569 One tap mobile +46850520017,,113172569# Sweden +46850539728,,113172569# Sweden Dial by your location +46 8 5052 0017 Sweden +46 850 539 728 Sweden +46 8 4468 2488 Sweden +45 32 71 31 57 Denmark +45 89 88 37 88 Denmark +45 32 70 12 06 Denmark +47 7349 4877 Norway +47 2396 0588 Norway +358 9 4245 1488 Finland +358 3 4109 2129 Finland +1 669 900 6833 US (San Jose) +1 253 215 8782 US +1 301 715 8592 US +1 312 626 6799 US (Chicago) +1 346 248 7799 US (Houston) +1 408 638 0968 US (San Jose) +1 408 652 8184 US (San Jose) +1 646 876 9923 US (New York) Meeting ID: 113 172 569 Find your local number: https://stockholmuniversity.zoom.us/u/cd8oxTpk4z Join by SIP 113172569 at 109.105.112.236 113172569 at 109.105.112.235 Join by H.323 109.105.112.236 109.105.112.235 Meeting ID: 113 172 569 Join by Skype for Business https://stockholmuniversity.zoom.us/skype/113172569 Hope you will be able to join! Best, C&G organisers -------------- next part -------------- An HTML attachment was scrubbed... URL: From keir.rogers at fysik.su.se Fri Apr 3 18:12:19 2020 From: keir.rogers at fysik.su.se (Keir Rogers) Date: Fri, 3 Apr 2020 16:12:19 +0000 Subject: [OKC-CosmologyGravity] [OKC C&G] Zoom talk Wed 8 Apr 10 am (note unusual time) In-Reply-To: <2a27f903511d4eb2b135910cdc3dcb27@fysik.su.se> References: <2a27f903511d4eb2b135910cdc3dcb27@fysik.su.se> Message-ID: Dear all, We hope you can join us on Zoom (see link below) for next Wednesday's OKC Cosmology & Gravity meeting at 10 am (note unusual time), where Nikhel Gupta at the University of Melbourne will present: Mass Estimation of Galaxy Clusters with Deep Learning I: Sunyaev-Zel’dovich Effect (https://arxiv.org/pdf/2003.06135.pdf)We present a new application of deep learning to infer the masses of galaxy clusters directly from images of the microwave sky. Effectively, this is a novel approach to determining the scaling relation between a cluster’s Sunyaev-Zel’dovich (SZ) effect signal and mass. The deep learning algorithm used is mResUNet, which is a modified feed-forward deep learning algorithm that broadly combines residual learning, convolution layers with different dilation rates, image regression activation and a U-Net framework. We train and test the deep learning model using simulated images of the microwave sky that include signals from the cosmic microwave background (CMB), dusty and radio galaxies, instrumental noise as well as the cluster’s own SZ signal. The simulated cluster sample covers the mass range 1×10^14 M⊙ < M200c < 8×10^14 M⊙ at z = 0.7. The trained model estimates the cluster masses with a 1σ uncertainty ∆M/M ≤ 0.2, consistent with the input scatter on the SZ signal of 20%. We verify that the model works for realistic SZ profiles even when trained on azimuthally symmetric SZ profiles by using the Magneticum hydrodynamical simulations. We find the model returns unbiased mass estimates for the hydrodynamical simulations with a scatter consistent with the SZ-mass scatter in the light cones. Keir Rogers is inviting you to a scheduled Zoom meeting. Topic: OKC C&G Time: Apr 8, 2020 10:00 AM Stockholm Join Zoom Meeting https://stockholmuniversity.zoom.us/j/217997433 Meeting ID: 217 997 433 One tap mobile +46850500829,,217997433# Sweden +46850520017,,217997433# Sweden Dial by your location +46 8 5050 0829 Sweden +46 8 5052 0017 Sweden +46 850 539 728 Sweden +46 8 4468 2488 Sweden +46 8 5050 0828 Sweden +45 32 72 80 10 Denmark +45 32 72 80 11 Denmark +45 89 88 37 88 Denmark +45 32 70 12 06 Denmark +45 32 71 31 57 Denmark +47 7349 4877 Norway +47 2396 0588 Norway +358 9 4245 1488 Finland +358 3 4109 2129 Finland +1 669 900 6833 US (San Jose) +1 253 215 8782 US +1 301 715 8592 US +1 312 626 6799 US (Chicago) +1 346 248 7799 US (Houston) +1 408 638 0968 US (San Jose) +1 408 652 8184 US (San Jose) +1 646 876 9923 US (New York) +61 2 8015 6011 Australia +61 3 7018 2005 Australia +61 8 7150 1149 Australia Meeting ID: 217 997 433 Find your local number: https://stockholmuniversity.zoom.us/u/cd8oxTpk4z Join by SIP 217997433 at 109.105.112.236 217997433 at 109.105.112.235 Join by H.323 109.105.112.236 109.105.112.235 Meeting ID: 217 997 433 Join by Skype for Business https://stockholmuniversity.zoom.us/skype/217997433 Hope you will be able to join! Best, C&G organisers -------------- next part -------------- An HTML attachment was scrubbed... URL: From keir.rogers at fysik.su.se Tue Apr 7 16:45:15 2020 From: keir.rogers at fysik.su.se (Keir Rogers) Date: Tue, 7 Apr 2020 14:45:15 +0000 Subject: [OKC-CosmologyGravity] [OKC C&G] Zoom talk tomorrow 10 am (note unusual time) In-Reply-To: References: <2a27f903511d4eb2b135910cdc3dcb27@fysik.su.se>, Message-ID: Dear all, This is a reminder for our OKC Cosmology & Gravity meeting tomorrow at 10 am (note unusual time) - details and the Zoom link are below. Best, C&G organisers ________________________________ From: Okc-wp1-at-fysik.su.se on behalf of Keir Rogers Sent: Friday, April 3, 2020 6:12 PM To: okc-wp1-at-fysik.su.se at lists.su.se Subject: [OKC-CosmologyGravity] [OKC C&G] Zoom talk Wed 8 Apr 10 am (note unusual time) Dear all, We hope you can join us on Zoom (see link below) for next Wednesday's OKC Cosmology & Gravity meeting at 10 am (note unusual time), where Nikhel Gupta at the University of Melbourne will present: Mass Estimation of Galaxy Clusters with Deep Learning I: Sunyaev-Zel’dovich Effect (https://arxiv.org/pdf/2003.06135.pdf)We present a new application of deep learning to infer the masses of galaxy clusters directly from images of the microwave sky. Effectively, this is a novel approach to determining the scaling relation between a cluster’s Sunyaev-Zel’dovich (SZ) effect signal and mass. The deep learning algorithm used is mResUNet, which is a modified feed-forward deep learning algorithm that broadly combines residual learning, convolution layers with different dilation rates, image regression activation and a U-Net framework. We train and test the deep learning model using simulated images of the microwave sky that include signals from the cosmic microwave background (CMB), dusty and radio galaxies, instrumental noise as well as the cluster’s own SZ signal. The simulated cluster sample covers the mass range 1×10^14 M⊙ < M200c < 8×10^14 M⊙ at z = 0.7. The trained model estimates the cluster masses with a 1σ uncertainty ∆M/M ≤ 0.2, consistent with the input scatter on the SZ signal of 20%. We verify that the model works for realistic SZ profiles even when trained on azimuthally symmetric SZ profiles by using the Magneticum hydrodynamical simulations. We find the model returns unbiased mass estimates for the hydrodynamical simulations with a scatter consistent with the SZ-mass scatter in the light cones. Keir Rogers is inviting you to a scheduled Zoom meeting. Topic: OKC C&G Time: Apr 8, 2020 10:00 AM Stockholm Join Zoom Meeting https://stockholmuniversity.zoom.us/j/217997433 Meeting ID: 217 997 433 One tap mobile +46850500829,,217997433# Sweden +46850520017,,217997433# Sweden Dial by your location +46 8 5050 0829 Sweden +46 8 5052 0017 Sweden +46 850 539 728 Sweden +46 8 4468 2488 Sweden +46 8 5050 0828 Sweden +45 32 72 80 10 Denmark +45 32 72 80 11 Denmark +45 89 88 37 88 Denmark +45 32 70 12 06 Denmark +45 32 71 31 57 Denmark +47 7349 4877 Norway +47 2396 0588 Norway +358 9 4245 1488 Finland +358 3 4109 2129 Finland +1 669 900 6833 US (San Jose) +1 253 215 8782 US +1 301 715 8592 US +1 312 626 6799 US (Chicago) +1 346 248 7799 US (Houston) +1 408 638 0968 US (San Jose) +1 408 652 8184 US (San Jose) +1 646 876 9923 US (New York) +61 2 8015 6011 Australia +61 3 7018 2005 Australia +61 8 7150 1149 Australia Meeting ID: 217 997 433 Find your local number: https://stockholmuniversity.zoom.us/u/cd8oxTpk4z Join by SIP 217997433 at 109.105.112.236 217997433 at 109.105.112.235 Join by H.323 109.105.112.236 109.105.112.235 Meeting ID: 217 997 433 Join by Skype for Business https://stockholmuniversity.zoom.us/skype/217997433 Hope you will be able to join! Best, C&G organisers -------------- next part -------------- An HTML attachment was scrubbed... URL: From keir.rogers at fysik.su.se Wed Apr 8 09:59:08 2020 From: keir.rogers at fysik.su.se (Keir Rogers) Date: Wed, 8 Apr 2020 07:59:08 +0000 Subject: [OKC-CosmologyGravity] [OKC C&G] Zoom talk NOW 10 am (note unusual time) In-Reply-To: References: <2a27f903511d4eb2b135910cdc3dcb27@fysik.su.se>, , Message-ID: <7b64e14679464fa5850ded27d34d9f32@fysik.su.se> Meeting starting now! Keir Rogers is inviting you to a scheduled Zoom meeting. Topic: OKC C&G Time: Apr 8, 2020 10:00 AM Stockholm Join Zoom Meeting https://stockholmuniversity.zoom.us/j/217997433 Meeting ID: 217 997 433 One tap mobile +46850500829,,217997433# Sweden +46850520017,,217997433# Sweden Dial by your location +46 8 5050 0829 Sweden +46 8 5052 0017 Sweden +46 850 539 728 Sweden +46 8 4468 2488 Sweden +46 8 5050 0828 Sweden +45 32 72 80 10 Denmark +45 32 72 80 11 Denmark +45 89 88 37 88 Denmark +45 32 70 12 06 Denmark +45 32 71 31 57 Denmark +47 7349 4877 Norway +47 2396 0588 Norway +358 9 4245 1488 Finland +358 3 4109 2129 Finland +1 669 900 6833 US (San Jose) +1 253 215 8782 US +1 301 715 8592 US +1 312 626 6799 US (Chicago) +1 346 248 7799 US (Houston) +1 408 638 0968 US (San Jose) +1 408 652 8184 US (San Jose) +1 646 876 9923 US (New York) +61 2 8015 6011 Australia +61 3 7018 2005 Australia +61 8 7150 1149 Australia Meeting ID: 217 997 433 Find your local number: https://stockholmuniversity.zoom.us/u/cd8oxTpk4z Join by SIP 217997433 at 109.105.112.236 217997433 at 109.105.112.235 Join by H.323 109.105.112.236 109.105.112.235 Meeting ID: 217 997 433 Join by Skype for Business https://stockholmuniversity.zoom.us/skype/217997433 ________________________________ From: Okc-wp1-at-fysik.su.se on behalf of Keir Rogers Sent: Tuesday, April 7, 2020 4:45 PM To: okc-wp1-at-fysik.su.se at lists.su.se Subject: [OKC-CosmologyGravity] [OKC C&G] Zoom talk tomorrow 10 am (note unusual time) Dear all, This is a reminder for our OKC Cosmology & Gravity meeting tomorrow at 10 am (note unusual time) - details and the Zoom link are below. Best, C&G organisers ________________________________ From: Okc-wp1-at-fysik.su.se on behalf of Keir Rogers Sent: Friday, April 3, 2020 6:12 PM To: okc-wp1-at-fysik.su.se at lists.su.se Subject: [OKC-CosmologyGravity] [OKC C&G] Zoom talk Wed 8 Apr 10 am (note unusual time) Dear all, We hope you can join us on Zoom (see link below) for next Wednesday's OKC Cosmology & Gravity meeting at 10 am (note unusual time), where Nikhel Gupta at the University of Melbourne will present: Mass Estimation of Galaxy Clusters with Deep Learning I: Sunyaev-Zel’dovich Effect (https://arxiv.org/pdf/2003.06135.pdf)We present a new application of deep learning to infer the masses of galaxy clusters directly from images of the microwave sky. Effectively, this is a novel approach to determining the scaling relation between a cluster’s Sunyaev-Zel’dovich (SZ) effect signal and mass. The deep learning algorithm used is mResUNet, which is a modified feed-forward deep learning algorithm that broadly combines residual learning, convolution layers with different dilation rates, image regression activation and a U-Net framework. We train and test the deep learning model using simulated images of the microwave sky that include signals from the cosmic microwave background (CMB), dusty and radio galaxies, instrumental noise as well as the cluster’s own SZ signal. The simulated cluster sample covers the mass range 1×10^14 M⊙ < M200c < 8×10^14 M⊙ at z = 0.7. The trained model estimates the cluster masses with a 1σ uncertainty ∆M/M ≤ 0.2, consistent with the input scatter on the SZ signal of 20%. We verify that the model works for realistic SZ profiles even when trained on azimuthally symmetric SZ profiles by using the Magneticum hydrodynamical simulations. We find the model returns unbiased mass estimates for the hydrodynamical simulations with a scatter consistent with the SZ-mass scatter in the light cones. Keir Rogers is inviting you to a scheduled Zoom meeting. Topic: OKC C&G Time: Apr 8, 2020 10:00 AM Stockholm Join Zoom Meeting https://stockholmuniversity.zoom.us/j/217997433 Meeting ID: 217 997 433 One tap mobile +46850500829,,217997433# Sweden +46850520017,,217997433# Sweden Dial by your location +46 8 5050 0829 Sweden +46 8 5052 0017 Sweden +46 850 539 728 Sweden +46 8 4468 2488 Sweden +46 8 5050 0828 Sweden +45 32 72 80 10 Denmark +45 32 72 80 11 Denmark +45 89 88 37 88 Denmark +45 32 70 12 06 Denmark +45 32 71 31 57 Denmark +47 7349 4877 Norway +47 2396 0588 Norway +358 9 4245 1488 Finland +358 3 4109 2129 Finland +1 669 900 6833 US (San Jose) +1 253 215 8782 US +1 301 715 8592 US +1 312 626 6799 US (Chicago) +1 346 248 7799 US (Houston) +1 408 638 0968 US (San Jose) +1 408 652 8184 US (San Jose) +1 646 876 9923 US (New York) +61 2 8015 6011 Australia +61 3 7018 2005 Australia +61 8 7150 1149 Australia Meeting ID: 217 997 433 Find your local number: https://stockholmuniversity.zoom.us/u/cd8oxTpk4z Join by SIP 217997433 at 109.105.112.236 217997433 at 109.105.112.235 Join by H.323 109.105.112.236 109.105.112.235 Meeting ID: 217 997 433 Join by Skype for Business https://stockholmuniversity.zoom.us/skype/217997433 Hope you will be able to join! Best, C&G organisers -------------- next part -------------- An HTML attachment was scrubbed... URL: From keir.rogers at fysik.su.se Mon Apr 20 19:56:54 2020 From: keir.rogers at fysik.su.se (Keir Rogers) Date: Mon, 20 Apr 2020 17:56:54 +0000 Subject: [OKC-CosmologyGravity] [OKC C&G] Zoom journal club Wed 22 Apr 13.15 In-Reply-To: References: <2a27f903511d4eb2b135910cdc3dcb27@fysik.su.se>, Message-ID: <5bd9fdb7176246c594d203a3f7664c5f@fysik.su.se> Dear all, We hope you can join us on Zoom (see link below) for this Wednesday's OKC Cosmology & Gravity meeting at 13.15, where we will have a journal club: * Nadia will talk about ‘Classifying CMB time-ordered data through deep neural networks’ (https://arxiv.org/abs/2004.06226) * * Steffen will talk about some recent cosmological hints and constraints for axion-like models (https://arxiv.org/abs/2004.02926) Keir Rogers is inviting you to a scheduled Zoom meeting. Topic: OKC C&G Time: Apr 8, 2020 10:00 AM Stockholm Join Zoom Meeting https://stockholmuniversity.zoom.us/j/217997433 Meeting ID: 217 997 433 One tap mobile +46850500829,,217997433# Sweden +46850520017,,217997433# Sweden Dial by your location +46 8 5050 0829 Sweden +46 8 5052 0017 Sweden +46 850 539 728 Sweden +46 8 4468 2488 Sweden +46 8 5050 0828 Sweden +45 32 72 80 10 Denmark +45 32 72 80 11 Denmark +45 89 88 37 88 Denmark +45 32 70 12 06 Denmark +45 32 71 31 57 Denmark +47 7349 4877 Norway +47 2396 0588 Norway +358 9 4245 1488 Finland +358 3 4109 2129 Finland +1 669 900 6833 US (San Jose) +1 253 215 8782 US +1 301 715 8592 US +1 312 626 6799 US (Chicago) +1 346 248 7799 US (Houston) +1 408 638 0968 US (San Jose) +1 408 652 8184 US (San Jose) +1 646 876 9923 US (New York) +61 2 8015 6011 Australia +61 3 7018 2005 Australia +61 8 7150 1149 Australia Meeting ID: 217 997 433 Find your local number: https://stockholmuniversity.zoom.us/u/cd8oxTpk4z Join by SIP 217997433 at 109.105.112.236 217997433 at 109.105.112.235 Join by H.323 109.105.112.236 109.105.112.235 Meeting ID: 217 997 433 Join by Skype for Business https://stockholmuniversity.zoom.us/skype/217997433 Hope you will be able to join! Best, C&G organisers -------------- next part -------------- An HTML attachment was scrubbed... URL: From keir.rogers at fysik.su.se Wed Apr 22 10:59:11 2020 From: keir.rogers at fysik.su.se (Keir Rogers) Date: Wed, 22 Apr 2020 08:59:11 +0000 Subject: [OKC-CosmologyGravity] [OKC C&G] Zoom journal club today 13.15 In-Reply-To: <5bd9fdb7176246c594d203a3f7664c5f@fysik.su.se> References: <2a27f903511d4eb2b135910cdc3dcb27@fysik.su.se>, , <5bd9fdb7176246c594d203a3f7664c5f@fysik.su.se> Message-ID: Dear all, This is a reminder for our OKC Cosmology & Gravity meeting today at 13.15 - details and the Zoom link are below. Best, C&G organisers ________________________________ From: Okc-wp1-at-fysik.su.se on behalf of Keir Rogers Sent: Monday, April 20, 2020 7:56 PM To: okc-wp1-at-fysik.su.se at lists.su.se Subject: [OKC-CosmologyGravity] [OKC C&G] Zoom journal club Wed 22 Apr 13.15 Dear all, We hope you can join us on Zoom (see link below) for this Wednesday's OKC Cosmology & Gravity meeting at 13.15, where we will have a journal club: * Nadia will talk about ‘Classifying CMB time-ordered data through deep neural networks’ (https://arxiv.org/abs/2004.06226) * * Steffen will talk about some recent cosmological hints and constraints for axion-like models (https://arxiv.org/abs/2004.02926) Keir Rogers is inviting you to a scheduled Zoom meeting. Topic: OKC C&G Time: Apr 22, 2020 01:15 PM Stockholm Join Zoom Meeting https://stockholmuniversity.zoom.us/j/66040433305 Meeting ID: 660 4043 3305 One tap mobile +46844682488,,66040433305# Sweden +46850500828,,66040433305# Sweden Dial by your location +46 8 4468 2488 Sweden +46 8 5050 0828 Sweden +46 8 5050 0829 Sweden +46 8 5052 0017 Sweden +46 850 539 728 Sweden +45 32 70 12 06 Denmark +45 32 71 31 57 Denmark +45 32 72 80 10 Denmark +45 32 72 80 11 Denmark +45 89 88 37 88 Denmark +47 7349 4877 Norway +47 2396 0588 Norway +358 9 4245 1488 Finland +358 3 4109 2129 Finland +1 669 900 6833 US (San Jose) +1 253 215 8782 US +1 301 715 8592 US +1 312 626 6799 US (Chicago) +1 346 248 7799 US (Houston) +1 408 638 0968 US (San Jose) +1 408 652 8184 US (San Jose) +1 646 876 9923 US (New York) Meeting ID: 660 4043 3305 Find your local number: https://stockholmuniversity.zoom.us/u/cd8oxTpk4z Join by SIP 66040433305 at 109.105.112.236 66040433305 at 109.105.112.235 Join by H.323 109.105.112.236 109.105.112.235 Meeting ID: 660 4043 3305 Join by Skype for Business https://stockholmuniversity.zoom.us/skype/66040433305 Hope you will be able to join! 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