T-RECS the Tiered Radio Extragalactic Continuum Simulation Dr Anna Bonaldi SKA project scientist

Motivation SKA designed to improve dramatically wrt current state-of-art radio facilities Currently available data are no match for those SKA will collect Need sky simulations to optimise surveys/ test pipelines/ forecast results, etc. 21 September 2016

(2008) Suite of simulations of the SKA accessible sky Publicly available, through web interface An invaluable tool (e.g. S3-SEX cited in 15 SKA science chapters!!) 21 September 2016

Scubed-SEX (Wilman et al. 2008) Extragalactic continuum 1.4 GHz counts Bonaldi et al. (2016)

Scubed-SEX (Wilman et al. 2008) Extragalactic continuum Bonaldi et al. (2016)

New simulation: T-RECS! Bonaldi et al. (in prep) New extragalactic simulation updated to match the most recent results Semi-empirical -> physical description Polarization information Development in progress To be fully released publicly “Beta” version available on request Collaborators: G. de Zotti, M. Bonato, C. Mancuso, M. Massardi, V. Galluzzi, M. L. Brown, S. Kay, S. Camera, I. Harrison

Luminosity function AGNs Massardi et al. (2010) Up to 5 GHz need to update De Zotti model for v>5 GHz Massardi et al. (2010)

Luminosity function SFGs Mancuso et al. (2015) Star-formation rate functions combined with SFR -> synch SFR -> free-free Accurately reproduces FIR, radio, UV

1.4 GHz counts Source sounts Vernstrom et al. P(D) Massardi and Mancuso models T-RECS sample

Clustering “Deep” Tier (25 sqdeg) Matching galaxies to dark haloes of a high-resolution DM cosmological simulation Planck Millennium simulation run by the Virgo consortium 800 Mpc box , down to 109.2 Msun mass resolution SFGs: MH->Lradio parametric relation by Aversa et al. (2015) + abundance matching AGNs: P(MH|HERG/LERG) from Janssen et al. 2012 P(HERG/LERG|M*) and Aversa et al. 2015 MH->M*

Clustering

Clustering “Wide” Tier (over 25 sqdeg) No cosmo simulation available with larger area and high enough mass resolution Use density field + bias prescriptions Informed by deep tier abundance matching results

Size and Shape SFGs Shape: exponential Sersic profile Re ->M* with parametric relation of Shen et al. (2003) New fit for radio:

Size and Shape AGNs BLLac FSRQ Main axis intrinsic size: PDF Di Pompeo et al. 2013 Coupled with view angle to give proj size Small angles: BLLac, FSRQ Large angles: steep spectrum FRI/FRII sources FRI/FRII

Size and Shape AGNs FRI/FRII classification Rs=b/T<0.5 ->FRI FRI/FRII classification Rs distributions from Lin et al. 2010 Mapping mostly HERG to FRII and LERG to FRI Next step: 3D parametric description of AGN morphology Parameter distribution linked to AGN type b T b T Rs=b/T>0.5 ->FRII

Polarization AGNs 1.4 GHz: Hales et al. (2014) Stil et al. (2014) Rudnick & Owen (2014) Bankfield et al. (2014) …. 20 GHz: Galluzzi, Massardi, AB et al. (2014) Good characterization of Pol fraction and Pol counts Pol fraction Pol counts FSRQ Characterize spectra statistically (spectral indices etc.) to create a multi-frequency model

Polarization SFGs Few info on polarization properties of SFGs 3D model of Milky way (Sun & Reich 2012) Stil et. al. (2009) GOODS-N Rudnick & Owen (2014) Taylor et al. (2014) New data?? Pol fraction of 5% @ 4.8 GHz and 1% at 1.4 GHz Total intensity-Pol fraction anticorrelation? possibly a selection bias Magnetic field model (e.g. Braun et al. 2010)

Current catalogue: AGNs More frequencies L 1.4 Log erg/s/Hz I1 mJy … IN MH logMsun Lat offset degs Lon offset z Size [Kpc] View angle arcsec Rs Pop 31.273 0.11732 0.11225 13.6242 -0.1155 -0.1878 2.4726 32.5478 0.00008 9.21e-5 5 30.457 0.01794 0.01716 15.2359 -0.2505 0.2967 2.4705 25.5206 0.04908 0.04377 30.425 0.01665 0.01593 11.1633 -0.2835 -0.0606 2.47797 0.75509 0.08719 0.00229 30.031 0.00672 0.00643 10.7074 -0.4157 0.1266 2.4699 29.1648 0.01448 0.01477 Fits binary table. Python script to convert to ASCII BLLac

Current Catalogue: SFGs More frequencies logSFR Log (Msun/yr) I1 mJy … IN MH logMsun Lat offset degs Lon offset z Size arcsec Pop 1.25233 0.0039122 0.0027574 11.8555 -0.113611 -0.074910 2.46328 1.06194 1 1.02995 0.0007201 0.0005366 11.4890 -0.474474 0.228567 2.34599 0.272221 1.02143 0.0019327 0.00136875 11.6987 0.419068 0.211474 2.33427 0.649678 0.981839 0.0007858 0.00057736 11.5054 0.0005329 -0.328579 2.47399 0.125903 UV galaxy Fits binary table. Python script to convert to ASCII

How to get it Final product will be fully released: A set of tiered surveys available for download Web interface to query for a different survey - TBD Beta version available: Email a.bonaldi@skatelescope.org with details of your query (frequency channels, depth, sky area) I’ll make catalogues available to you trough web link

Conclusions