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Unveiling the physical processes that regulate galaxy evolution with SPICA observations

Published online by Cambridge University Press:  29 January 2021

Luigi Spinoglio ,
Juan A. Fernández-Ontiveros  and
Sabrina Mordini
Luigi Spinoglio
Affiliation:
Istituto di Astrofisica e Planetologia Spaziali - INAF, Rome, Via Fosso del Cavaliere 100, 00133, Roma, Italia emails: [email protected], [email protected], [email protected]
Juan A. Fernández-Ontiveros
Affiliation:
Istituto di Astrofisica e Planetologia Spaziali - INAF, Rome, Via Fosso del Cavaliere 100, 00133, Roma, Italia emails: [email protected], [email protected], [email protected]
Sabrina Mordini
Affiliation:
Istituto di Astrofisica e Planetologia Spaziali - INAF, Rome, Via Fosso del Cavaliere 100, 00133, Roma, Italia emails: [email protected], [email protected], [email protected]
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Abstract

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To study the dust obscured phase of the galaxy evolution during the peak of the Star Formation Rate (SFR) and the Black Hole Accretion Rate (BHAR) density functions (z = 1–4), rest frame mid-to-far infrared (IR) spectroscopy is needed. At these frequencies, dust extinction is at its minimum and a variety of atomic and molecular transitions, tracing most astrophysical domains, occur. The future IR space telescope mission, SPICA, fully redesigned with its 2.5m mirror cooled down to T < 8K, will be able to perform such observations. With SPICA, we will: 1) obtain a direct spectroscopic measurement of the SFR and of the BHAR histories, 2) measure the evolution of metals and dust to establish the matter cycle in galaxies, 3) uncover the feedback and feeding mechanisms in large samples of distant galaxies, either AGN- or starburst-dominated, reaching lookback times of nearly 12 Gyr. SPICA large-area deep surveys will provide low-resolution, mid-IR spectra and continuum fluxes for unbiased samples of tens of thousands of galaxies, and even the potential to uncover the youngest, most luminous galaxies in the first few hundred million years. In this paper a brief review of the scientific preparatory work that has been done in extragalactic astronomy by the SPICA Consortium will be given.

Keywords

telescopesgalaxies: evolutiongalaxies: activegalaxies: starburstquasars: emission linesgalaxies: ISMgalaxies: abundancesgalaxies: high-redshiftinfrared: galaxies
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S356: Nuclear Activity in Galaxies Across Cosmic Time , October 2019 , pp. 17 - 22
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of International Astronomical Union

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