Neutral Hydrogen as a Cosmological Probe Across Cosmic Time
May 15th-19th, 2023
Nazareth, Israel
Registration and Abstract Submission Deadline: April 1st, 2023
RESEARCH WORKSHOP OF THE ISRAEL SCIENCE FOUNDATION
Meeting Rationale
In the last decades, probes of atomic hydrogen through the intensity mapping of the 21 cm line and Lyman-alpha emission and absorption have become essential tools for characterising and understanding the physical conditions of the intergalactic medium (IGM) across cosmic time as well as the formation and evolution of the large scales structure (LSS) of the Universe.
At early times HI 21 cm radiation provides a unique probe of the first billion years of cosmic history (z~6 - 200), and its three eras: the Dark Ages, the Cosmic Dawn, and the Epoch of Reionization. These three epochs constitute the transition of our Universe from its early linear phases to the highly complex structures that we observe around us. Each of these steps ushers the Universe into a new realm, probing different physical processes that can be used to understand the onset of structure formation in the Universe and its early stages, as well as the very nature of its initial conditions.
Towards the end of the reionization process (around z~6.5), the Lyman-alpha transition provides the main tool for studying the IGM, either through direct emission or absorption against the continuum spectra of distant sources (QSOs and galaxies). These systems have proven to be a treasure trove for studying the IGM down to redshift ~ 0.
At the low redshift range (z= 0 - 2), the 21 cm emission, observed from discreet sources and intensity mapping studies, become an important probe again. This range of redshift is currently the subject of very active research that aims, among other things, at measuring the Baryonic Acoustic Oscillations, or the general large structure of the local Universe.
Research into these topics has been driven by current state-of-the art facilities and will benefit hugely from the new generation of ground based Optical and IR telescopes (e.g., VLT, LSST, Subaru) and radio observatories (e.g., LOFAR, MWA, HERA, SKA, EDGES) as well as space borne instruments, in particular JWST.
The aim of this meeting is to bring together cosmologists and IGM and LSS astrophysicists in order to focus the attention of their diverse communities on current and future challenges in this field. With the meeting we will promote greater interconnectivity between theorists, observers, simulators and data analysts, in order to meet the exciting challenges that we face today and will continue to face in the coming years.
Main Meeting Topics
H I intensity mapping.
The Universe’s Dark Ages.
The Cosmic Dawn.
The Epoch of Reionization.
First Stars and Galaxies.
The status of High z 21-cm experiments.
Lyman alpha probes at intermediate redshifts.
Intensity mapping of BAOs at z<2.
Probing cosmic filaments with intensity mapping.
Cosmology with the redshifted 21 cm mapping.
Statistical measures and analysis methods.
Synergy with JWST and other probes.
Venue:
The conference will take place at Legacy Nazareth Hotel, Paul the 6th ST, Nazareth, Israel
Hotels in Nazareth
The conference venue is located at the city center. There are many hotels within walking distance from the venue.
Important note:
May is a very busy month in Nazareth. Please book your accommodation as soon as possible!
Scientific Advisory Committee
Benedetta Ciardi (MPA)
Rennan Barkana (Tel Aviv U.)
Martin Haehnelt (IOA Cambridge)
Leon Koopmans (Kapteyn Ist., Groningen)
Ue Li Pen (ASIAA, Academia Sinica, Taipei)
Masami Ouchi (ICRR, Tokyo)
Cathryn Trott (ICRAR, Curtin U., Bentley)
Jonathan Pritchard (Imperial College, London)
Miguel Morales (U. of Washington)
Andrew Bunker (Oxford U.)
Organizing Committee
Madhurima Choudhury (Open U., Israel)
Raghunath Ghara (Open U., Israel)
Abinash Kumar Shaw (Open U., Israel)
Saleem Zaroubi (Open U. and RuG, Chair)
Invited Speakers
Rennan Barkana (Tel Aviv University)
Gianni Bernardi (INAF- Inst. of Radio Astron., Bologna)
Tirth Choudhury (NCRA, Pune University )
Benedetta Ciardi (MPA, Garching)
Avishai Dekel (The Hebrew Univ., Jerusalem)
Anastasia Fialkov (IoA, Cambridge Univ.)
Martin Haehnelt (IoA, Cambridge Univ.)
Leon Koopmans (University of Groningen)
Ely Kovetz (BGU, Be'er Sheeva)
Girish Kulkarni (Tata Institute, Mumbai)
Jack Line (Curtin University, Perth)
Florent Mertens (Paris Observatory)
Andrei Mesinger (SNS, PISA)
Steven Murray (Arizona State University, Tempe)
Andrè Offringa (ASRON & Univ. of Groningen)
Masami Ouchi (ICRR, Tokyo)
Aaron Parsons (Univ. of California, Berkeley)
Jonathan Pritchard (Imperial College, London)
Mario Santos (Univ. of Western Cape, Cape Town)
Benoit Semelin (Observatoire de Paris)
Joe Silk (IAP, Paris)
Saurabh Singh (Raman Res. Inst., Bangalore)
Matteo Viel (SISSA, Trieste) - TBC
Naoki Yoshida (IPMU, Univ. of Tokyo)
Adi Zitrin (BGU, Be'er Sheeva) - TBC
Registration Form
The Registration is now closed!
The "early bird" registration fee is 1200 NIS (about 320 EUROs) valid until April 10th, 2023, and the "late bird" fee is 1400 NIS (about 370 Euros) valid until the closing of registration on May 15th, 2023. Please pay with a credit card on this link of the "Payment Page".
The registration fee will cover the use of the venue, the costs of the welcome reception, coffee breaks, daily lunches, excursion, and conference dinner.
Financial Support.
Some financial support might be valid for students (contingent on the availability of funding). Please write to the LOC if such funding is absolutely necessary.
Entrance Visa to Israel:
For those who need an entrance visa to Israel: we are able to provide letters of invitation for registered participants upon request, please contact us at: abinashkumarshaw@gmail.com