Our understanding of the Universe is at a turning point with the predictions of the standard cosmological model and the observations from different surveys are showing tensions in several key areas. The disagreement is expressed in the value of cosmic expansion as well as in the growth of large-scale structure in the Universe. New cosmological surveys, many of which are European, may expose tension in additional areas of the concordance model. The question of cosmological tensions can be confronted in a number of ways. Firstly, survey data needs to be further analyzed for potential systematic uncertainties or biases. Secondly, there have been numerous advances in approaches to data analysis and statistics, some of which provide less dependence on cosmological models to make cosmological parameter estimates. Lastly, there are a plethora of new proposals from fundamental physics which range from novel neutrino physics to dark energy proposals (and others) which may contribute to a solution to the cosmological tensions problem. These represent the three research themes through which cosmological tensions will either be alleviated or resolved.
CosmoVerse@Istanbul 2025 (24 June – 26 June 2025) is the third annual conference in a series of conferences that aim to establish a link between the different research areas in cosmology with the main focus on challenges of tensions in cosmological survey data.
This conference is organized within the COST Action initiative CA21136 – Addressing observational tensions in cosmology with systematics and fundamental physics (CosmoVerse).
The first conference called CosmoVerse@Lisbon 2023 took place between 30 May and 1st June 2023. All of the recorded talks and presentations are public and available here. The second conference called CosmoVerse@Krakow 2024 took place between 9 and 11 July 2024. All of the recorded talks and presentations are available here.
The conference is organized together with İstanbul Technical University in İstanbul.
Main topics
● Observational cosmology and Systematics (cross-correlation of data, systematic effects)
● Data analysis (astrostatistics; data science in astronomy; Bayesian analysis; machine learning and artificial intelligence)
● Fundamental Physics (challenge of the cosmological hypothesis, dark energy and modified gravity, neutrino physics, dark energy, and dark matter interaction)
Venue
The conference will take place in İstanbul at of the Istanbul Technical University (https://maps.app.goo.gl/yoP5Apj5k4CJkbgcA)
Important dates
17 December 2024: Registration and abstract submission opens
20 April 2025: Registration and abstract submission deadline
24-26 June 2025: Conference days
24 June 2025: Welcome Drinks and Poster Session
25 June 2025: Conference Dinner
26 June 2025: Public Lecture
27 June 2025: CosmoVerse COST Action meeting for the Management Committee
Local organizing committee (LOC)
Özgür Akarsu (İTÜ)
Nihan Katırcı (DOU)
Emre Onur Kahya (İTÜ)
Mehmet Özkan (İTÜ)
Merve Uzun
Mine Gökçen
Emre Özülker
Arman Çam
Bilal Bulduk
Burcu Öztürk
Scientific organizing committee (SOC)
Jackson Levi Said (University of Malta, MT)
Eleonora Di Valentino (Sheffield University, UK)
Noemi Frusciante (UNINA, IT)
Agnieszka Pollo (National Center for Nuclear Research & Astronomical Observatory of the Jagiellonian University, PL)
Marika Asgari (Newcastle University)
Visa
You may check your visa requirement status at https://www.mfa.gov.tr/visa-information-for-foreigners.en.mfa.
Hotel suggestions
Please note all hotels below are suggestions and prices might change. CosmoVerse will not be making any hotel arrangement or contact you concerning hotel reservations. Conference organisers have also never mandated nor authorised any company to send requests regarding accommodation or travel. We strongly advise you NOT TO reply to any emails or calls from such companies and we do not accept any responsibility for adverse consequences should you choose to do so.
Maslak is a very central location and many options for accommodation are possible. Hotels or rental houses at Maslak, Levent and Şişli could be preferred. Macka Hotel is a relatively cheap and good quality facility of Istanbul Technical University. Currently 25 standard rooms and a couple of suits and triple rooms are available for the date but we recommend booking as soon as possible. Breakfast is included in the price.
- Wyndham Grand İstanbul Levent
- Single rate: 170€
- Double rate: 190€
- Tax: 10%VAT + 2% Residence tax
- Breakfast included
- Hilton Istanbul Maslak
- Single rate: 140€
- Double rate: 160€
- Tax: 10%VAT + 2% Residence tax
- Breakfast included
- Avantgarde Hotel Levent
- Single rate: 130€
- Double rate: 150€
- Tax: 10%VAT + 2% Residence tax
- Breakfast included
- Avantgarde Hotel Şişli
- Single rate: 100€
- Double rate: 110€
- Taxes included
- Breakfast included
- Four Points by Sheraton İstanbul Kağıthane
- Single rate: 100€
- Double rate: 110€
- Tax: 10%VAT + 2% Residence tax
- Breakfast included