Tracing the Evolution of Dust Obscured Star Formation and Accretion Back to the Reionisation Epoch with SPICA
File(s)
Accepted version
Author(s)
Type
Journal Article
Abstract
Our current knowledge of star formation and accretion luminosity at high redshift (z > 3–4), as well as the possible connections between them, relies mostly on observations in the rest-frame ultraviolet, which are strongly affected by dust obscuration. Due to the lack of sensitivity of past and current infrared instrumentation, so far it has not been possible to get a glimpse into the early phases of the dust-obscured Universe. Among the next generation of infrared observatories, SPICA, observing in the 12–350 µm range, will be the only facility that can enable us to trace the evolution of the obscured star-formation rate and black-hole accretion rate densities over cosmic time, from the peak of their activity back to the reionisation epoch (i.e., 3 < z ≲ 6–7), where its predecessors had severe limitations. Here, we discuss the potential of photometric surveys performed with the SPICA mid-infrared instrument, enabled by the very low level of impact of dust obscuration in a band centred at 34 µm. These unique unbiased photometric surveys that SPICA will perform will fully characterise the evolution of AGNs and star-forming galaxies after reionisation.
Date Issued
2017-11-16
Date Acceptance
2017-09-27
Citation
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA, 2017, 34
ISSN
1323-3580
Publisher
CAMBRIDGE UNIV PRESS
Journal / Book Title
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA
Volume
34
Copyright Statement
© 2017 Astronomical Society of Australia. This paper has been accepted for publication and will appear in a revised form, subsequent to peer-review and/or editorial input by Cambridge University Press.
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000415377400001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Astronomy & Astrophysics
cosmology: observations
galaxies: active
galaxies: evolution
galaxies: star formation
infrared: galaxies
ACTIVE GALACTIC NUCLEI
HUBBLE-DEEP-FIELD
INFRARED SPECTROSCOPIC SURVEYS
SUPERMASSIVE BLACK-HOLES
FORMATION RATE DENSITY
C II EMISSION
SUBMILLIMETER GALAXIES
LUMINOSITY FUNCTION
FORMATION HISTORY
HIGH-REDSHIFT
Publication Status
Published
Article Number
ARTN e055
Date Publish Online
2017-11-16