Exploring the dusty star-formation in the early Universe using intensity mapping

Abstract

In the last decade, it has become clear that the dust-enshrouded star formation contributes significantly to early galaxy evolution. Detection of dust is therefore essential in determining the properties of galaxies in the high-redshift universe. This requires observations at the (sub-)millimeter wavelengths. Unfortunately, sensitivity and background confusion of single dish observations on the one hand, and mapping efficiency of interferometers on the other hand, pose unique challenges to observers. One promising route to overcome these difficulties is intensity mapping of fluctuations which exploits the confusion-limited regime and measures the collective light emission from all sources, including unresolved faint galaxies. We discuss in this contribution how 2D and 3D intensity mapping can measure the dusty star formation at high redshift, through the Cosmic Infrared Background (2D) and [CII] fine structure transition (3D) anisotropies.

Invited talk for the IAU Symposium 333 "Peering towards Cosmic Dawn", Dubrovnik, October 2-6, 2017; to appear in the proceedings, eds. Vibor Jelic and Thijs van der Hulst [6 pages, 4 figures]

References in corpus (10)

• Cosmic Star Formation History
• The Interstellar Medium In Galaxies Seen A Billion Years After The Big Bang
• A dusty, normal galaxy in the epoch of reionization
• Dust in the reionization era: ALMA observations of a $z$=8.38 Galaxy
• On the [CII]-SFR relation in high redshift galaxies
• The nature of the [CII] emission in dusty star-forming galaxies from the SPT survey
• Zooming on the internal structure of $z\simeq 6$ galaxies
• The impact of chemistry on the structure of high-z galaxies
• The dust-to-stellar mass ratio as a valuable tool to probe the evolution of local and distant star forming galaxies
• Inferring the Redshift Distribution of the Cosmic Infrared Background

Cited by in corpus (9)

• A User's Guide to Extracting Cosmological Information from Line-Intensity Maps
• Sensitivity of the Prime-Cam Instrument on the CCAT-prime Telescope
• The ALPINE-ALMA [C II] Survey: [C II]158micron Emission Line Luminosity Functions at $z\sim 4-6$
• COMAP Early Science: VII. Prospects for CO Intensity Mapping at Reionization
• Astrophysics & Cosmology from Line Intensity Mapping vs Galaxy Surveys
• On the kinetic Sunyaev-Zel'dovich effect as an observational probe for halo spin bias
• CII and HI 21-cm line intensity mapping from the EoR: Impact of the light-cone effect on auto and cross-power spectra
• Synergizing 21 cm and sub-millimetre surveys during reionization: new empirical insights
• Mapping the Universe in HD