Click here for the complete book of abstracts-
https://ifcam-2.sciencesconf.org/cache/book-ifcam-2-en.pdf
1-Title: The WST - The Wide Field Spectroscopic Telescope
Author: Roland Bacon
Affiliation:CRAL, University of Lyon, FR
Abstract:The WST project aim to study and built an innovative 10-m class wide-field spectroscopic survey telescope (WST) in the southern hemisphere with simultaneous operation of a large field-of-view (5 sq. degree) and high multiplex (20,000) multi-object spectrograph facility with both medium and high-resolution modes (MOS), and a giant panoramic integral field spectrograph (IFS). The ambitious WST top-level requirements place it far ahead of existing and planned facilities. In just its first 5 years of operation, the MOS will target 250 million galaxies and 25 million stars at medium resolution + 2 million stars at high resolution, and 4 billion spectra with the IFS. WST will achieve transformative results in most areas of astrophysics. The project is supported by a large consortium of very experienced institutes plus ESO, representing 9 European countries and Australia.
2-Title: The new Athena X-ray Integral Field Unit
Author: Didier Barret on behalf of the X-ray Integral Field Unit Consortium
Affiliation: IRAP, FR
Abstract:The Advance Telescope for High Energy Astrophysics (Athena) is a large mission of the Cosmic Vision science program of the European Space Agency. Designed for the study of the Hot and Energetic Universe, Athena will carry a large aperture X-ray telescope, and two complementary focal plane instruments: the Wide Field Imager (WFI) and the X-ray Integral Field Unit (X-IFU). The X-IFU is a high-resolution cryogenic X-ray spectrometer, operating a large format array of transition edge sensors cooled down to the 100 mK range, grating Athena capabilities extending well beyond those of XRISM. Athena entered a design-to-cost exercise right after summer 2022, with the aim of bringing its cost-at-completion into an affordable envelope for ESA. At the start, the so-called Athena reformulation exercise was focused primarily on the X-ray Integral Field Unit to reduce primarily the complexity of both its cooling chain and its cryostat. A new X-IFU baseline is thus being defined, making use of passive cooling to reduce the number of mechanical cryo-coolers and the complexity of the cryostat. In this presentation, I will describe the new X-IFU baseline and its anticipated performances, which should preserve the flagship character of the Athena mission.
The X-IFU will be provided by an international consortium led by France, The Netherlands, and Italy, with ESA member state contributions from Belgium, the Czech Republic, Finland, Germany, Poland, Spain, and Switzerland, with enabling contributions from the United States and Japan.
3-Title: Cosmic Ray extragalactic sources
Author: Alexandre Marcowith
Affiliation: LUPM, University of Montpellier, FR
Abstract: This review talk addresses the capabilities of different extragalactic sources among which Galaxy clusters lie in a good position to accelerate the most energetic cosmic rays.
Beforehand, I discuss different acceleration scenarios and describe the way multi-wavelength / messengers observations can probe these mechanisms.
4-Title: Indian space astronomy and planetary exploration programs
Author: P. Sreekumar
Affiliation:Indian Institute of Astrophysics, Bengaluru, IND
Abstract: Space astronomy research in India took a big leap forward with the successful launch of its first multiwavelength astronomy satellite, AstroSat in 2015. With numerous interesting results emerging from this mission and its continuing overall good health, it is expected to serve the community for many more years. The launches of the L1 solar mission, Aditya-L1 and the x-ray polarimetry mission, XpoSat, are now scheduled for 2023. The astronomy community is also converging on potential mission concepts that expand on the success of AstroSat. ISRO’s Planetary exploration program initially focused on understanding Moon and Mars. In the future, there is keen interest to explore further with a Venus polar orbiter mission. Expanding the community in India and enhancing collaborations with the global research community, are key areas of renewed focus. A broad summary of these programs will be presented.
5-Title: Development of astronomy in India in the post-medieval period
Author: B S Shylaja
Affiliation: Jawaharlal Nehru Planetarium, Bengaluru, India
Abstract: The study of celestial bodies has been going on for several centuries. The ability to explain celestial phenomena with a strong mathematical foundation provided a turning point in India. Several schools of thought developed in the first millennium and efforts continued to improvise the planetary position computation. We trace some of the unknown authors and works right up to the 17 th century. The colonial period saw the influence of the revolution initiated by the works of Galileo, Newton and Kepler. In the latter half of 19 th century many observatories were built. The skill in instrumentation also developed as per the need of the hour. Text books and popular astronomy books were rendered in regional languages. A new generation of astronomers were all set to prepare independent India for the new challenges in the field.
6-Title: The quest for the diffuse gamma-ray emission from galaxy clusters with CTA
Author: Remi Adam
Affiliation:Laboratoire Leprince-Ringuet, Paris, FR
Abstract: Galaxy clusters represent the last step of the formation of large scale structures in the Universe. They are both useful cosmological probes and unique astrophysical laboratories. The clusters grow by accretion of surrounding structures and from the merging of subclusters, in very energetic events, eventually forming a diffuse gas phase made of a hot thermal component, but also leading to particle acceleration up to very high energies. One of the key science projects of the Cherenkov Telescope Array (CTA), the next generation array of imaging atmospheric Cherenkov telescopes, being built in La Palma (Spain) and Paranal (Chile), consists of the first unambiguous measurement of the diffuse gamma-ray emission associated with the interaction between the cluster cosmic rays protons and the thermal gas. I will discuss prospects for probing such a signal using the CTA and highlight what we can learn about cluster physics from such an observable.
