Constraining $z\lesssim 2$ ultraviolet emission with the upcoming ULTRASAT satellite

Abstract

The Extragalactic Background Light (EBL) carries a huge astrophysical and cosmological content: its frequency spectrum and redshift evolution are determined by the integrated emission of unresolved sources, these being galaxies, active galactic nuclei, or more exotic components. The near-UV region of the EBL spectrum is currently not well constrained, yet a significant improvement can be expected thanks to the soon-to-be launched Ultraviolet Transient Astronomy Satellite (ULTRASAT). Intended to study transient events in the $2300-2900\mathring{\mathrm{A}}$ observed band, this detector will provide wide field maps, tracing the UV intensity fluctuations on the largest scales. In this paper, we suggest how to exploit ULTRASAT to reconstruct the redshift evolution of the UV-EBL volume emissivity. We build upon the work of Chiang et al. (2019), where the Clustering-Based Redshift (CBR) technique was used to study diffuse light maps from GALEX. Their results showed the capability of the cross correlation between GALEX and SDSS spectroscopic catalogs in constraining the UV emissivity, highlighting how CBR is sensitive only to the extragalactic emissions, avoiding foregrounds and Galactic contributions. In our analysis, we introduce a framework to forecast the CBR constraining power when applied to ULTRASAT and GALEX in cross correlation with the 5-year DESI spectroscopic survey. We show that these will yield a strong improvement in the measurement of the UV-EBL volume emissivity. For $\lambda =1500\mathring{\mathrm{A}}$,non-ionizing continuum below $z\sim 2$, we forecast a $1\sigma$ uncertainty $\lesssim 26\%(9\%)$ with conservative (optimistic) bias priors using ULTRASAT full-sky map; similar constraints can be obtained from its low-cadence survey, which will provide a smaller but deeper map. We finally discuss how these results will foster our understanding of UV-EBL models.

arXiv commentWrt v1: we updated noise modeling and discussion; account for ULTRASAT low cadence survey. 16 pages, 5 figures

References in corpus (69)

• Cosmic Star Formation History
• The Galaxy Evolution Explorer: A Space Ultraviolet Survey Mission
• NYU-VAGC: a galaxy catalog based on new public surveys
• Radiative transfer in a clumpy universe: IV. New synthesis models of the cosmic UV/X-ray background
• An Observational Determination of the Bolometric Quasar Luminosity Function
• Karhunen-Loeve eigenvalue problems in cosmology: how should we tackle large data sets?
• Galaxy Clustering in the Completed SDSS Redshift Survey: The Dependence on Color and Luminosity
• Extragalactic Background Light Inferred from AEGIS Galaxy SED-type Fractions
• A Steep Faint-End Slope of the UV Luminosity Function at z~2-3: Implications for the Global Stellar Mass Density and Star Formation in Low Mass Halos
• UV Luminosity Functions from 132 z~7 and z~8 Lyman-Break Galaxies in the ultra-deep HUDF09 and wide-area ERS WFC3/IR Observations
• Reionization of the Universe and the Early Production of Metals
• Semi-analytic modeling of the EBL and consequences for extragalactic gamma-ray spectra
• The linear power spectrum of observed source number counts
• An updated analytic model for the attenuation by the intergalactic medium
• Multi-Wavelength Constraints on the Cosmic Star Formation History from Spectroscopy: the Rest-Frame UV, H-alpha, and Infrared Luminosity Functions at Redshifts 1.9<z<3.4
• HMcode-2020: Improved modelling of non-linear cosmological power spectra with baryonic feedback
• The Bolometric Quasar Luminosity Function at z = 0-7
• The GALEX-VVDS Measurement of the Evolution of the Far-Ultraviolet Luminosity Density and the Cosmic Star Formation Rate
• Calibrating Redshift Distributions Beyond Spectroscopic Limits with Cross-Correlations
• The UV Galaxy Luminosity Function in the Local Universe from GALEX Data
• Evolution of the AGN UV luminosity function from redshift 7.5
• The COBE Diffuse Infrared Background Experiment Search for the Cosmic Infrared Background: IV. Cosmological Implications
• A Cosmic UV/X-ray Background Model Update
• The Low-Redshift Lyman Continuum Survey I: New, Diverse Local Lyman-Continuum Emitters
• Eigenmode Analysis of Galaxy Redshift Surveys I. Theory and Methods
• Science with a wide-field UV transient explorer
• Evolution of the Luminosity Function, Star Formation Rate, Morphology and Size of Star-forming Galaxies Selected at Rest-frame 1500A and 2800A
• On using angular cross-correlations to determine source redshift distributions
• Line-Intensity Mapping: Theory Review
• The Spectrum of the Universe
• On the Validity of Cosmological Fisher Matrix Forecasts
• Star Formation History and Stellar Metallicity Distribution in a Cold Dark Matter Universe
• The-wiZZ: Clustering redshift estimation for everyone
• The First Detections of the Extragalactic Background Light at 3000, 5500, and 8000A (III): Cosmological Implications
• Clustering-based Redshift Estimation: Comparison to Spectroscopic Redshifts
• Constraints on the UV metagalactic emissivity using the LyA forest
• The Galaxy Angular Correlation Functions and Power Spectrum from the Two Micron All Sky Survey
• Testing KiDS cross-correlation redshifts with simulations
• Extragalactic Imprints in Galactic Dust Maps
• Cosmic infrared background excess from axion-like particles and implications for multi-messenger observations of blazars
• Inferring the Redshift Distribution of the Cosmic Infrared Background
• The contribution of high redshift galaxies to the Near-Infrared Background
• Mapping the Diffuse Ultraviolet Sky with GALEX
• The Narrow-band Ultraviolet Imaging Experiment for Wide-field Surveys (NUVIEWS)-I: Dust scattered continuum
• Probing the Blue Axion with Cosmic Optical Background Anisotropies
• The Power Spectrum of the Lyman-$\alpha$ Forest at z < 0.5
• Measurements of the Diffuse Ultraviolet Background and the Terrestrial Airglow with the Space Telescope Imaging Spectrograph
• Broadband Intensity Tomography: Spectral Tagging of the Cosmic UV Background
• Clustering-based redshift estimation: application to VIPERS/CFHTLS
• Strategies to Detect Dark-Matter Decays with Line-Intensity Mapping
• The Mystery of the Cosmic Diffuse Ultraviolet Background Radiation
• Searching for Decaying and Annihilating Dark Matter with Line Intensity Mapping
• The Diffuse Galactic Far-Ultraviolet Sky
• Cross-Correlation Redshift Calibration Without Spectroscopic Calibration Samples in DES Science Verification Data
• Gravitational waves $\times$ HI intensity mapping: cosmological and astrophysical applications
• A Measurement of the Cosmic Optical Background and Diffuse Galactic Light Scaling from the R < 50 AU New Horizons-LORRI Data
• The Diffuse Radiation Field at High Galactic Latitudes
• The Diffuse Ultraviolet Foreground
• GALEX Observations of Diffuse UV Radiation at High Spatial Resolution from the Sandage Nebulosity
• Cosmological Constraints with Clustering-Based Redshifts
• Observations of Diffuse Ultraviolet Emission from Draco
• Reanalyses of Voyager Ultraviolet Spectrometer Limits to the EUV and FUV Diffuse Astronomical Flux
• Modelling Dust Scattering in our Galaxy
• Cosmic Near-infrared Background Tomography with SPHEREx Using Galaxy Cross-correlations
• Mass Functions, Luminosity Functions, and Completeness Measurements from Clustering Redshifts
• Probing bursty star formation by cross-correlating extragalactic background light and galaxy surveys
• Galaxy Cluster Contribution to the Diffuse Extragalactic Ultraviolet Background
• Forecasts for Broadband Intensity Mapping of the Ultraviolet-Optical Background with CASTOR and SPHEREx
• Probing the infrared counterparts of diffuse far-ultraviolet sources in the Galaxy

Cited by in corpus (2)

• Upcoming searches for decaying dark matter with ULTRASAT ultraviolet maps
• oLIMpus: An Effective Model for Line Intensity Mapping Auto- and Cross- Power Spectra in Cosmic Dawn and Reionization