102.100.100/488702 https://data.csiro.au/dap/ 102.100.100/488702 10.25919/abwc-f513 Spectra and Polarisation In Cutouts of Extragalactic sources from RACS First Data Release (SPICE-RACS-DR1): Full data deposit

http://hdl.handle.net/102.100.100/488702

2019-04-25 2020-05-02 10.25919/abwc-f513 v2 Commonwealth Scientific and Industrial Research Organisation (CSIRO) Thomson Alec McConnell David Lenc Emil Galvin Tim Rudnick Lawrence Heald George Hale Catherine Laura Duchesne Stefan Anderson Craig Carretti Ettore Federrath Christoph Gaensler Bryan Harvey-Smith Lisa Haverkorn Marijke Hotan Aidan Ma Jackie Murphy Tara Mcclure-Griffiths Naomi Moss Vanessa O'Sullivan Shane Raja Wasim 2023-09-10 csiro:R-02527_IRP csiro:PartyGroup racs racs-low spice-racs askap polarisation radio 510103 510103 510199 Spectra and Polarisation In Cutouts of Extragalactic sources from RACS (SPICE-RACS) is a project to derive an all-Southern-sky, linear polarisation map from the Rapid ASKAP Continuum Survey (RACS). Through this project, we will derive the following products: - Cutout image cubes in Stokes I, Q, and U around every source detected in total intensity as a function of frequency - Polarisation spectra as a function of frequency and Faraday depth for every component detected in total intensity - A catalogue summarising the polarisation properties, including rotation measure (RM), for every component. This collection represents the entirety ('full' subset, 105912 components) of the data presented in SPICE-RACS-DR1 (Thomson et al. 2023). The subset of 24680 components ('cut') for which a reliable polynomial fit could be derived for the Stokes I spectra that were extracted are also available in the linked CASDA collection. The individual spectra and cubelets files are divided into sub-directories named by their Field ID from the RACS DR1 (Hale et al. 2021) catalogue. Our final data products are as follows: spice-racs.dr1.corrected.{cut,full}.xml: - Our component catalogue in VOTable format for the first (cut) and second (full) sets of components described above. The former is included with this deposit. {source_id}.cutout.{image,weights}.*.fits: - Image and weights cube cutout in Stokes I, Q, and U cutout around a RACS-low source identified by ?source_id?. The data dimensions are J2000 right ascension and declination, Stokes parameter, and frequency. {cat_id}_polspec.fits: - Polarisation spectra extracted on the position of the RACS-low component identified by ?cat_id? in POLSPECTRA format. Each table contains a single row, corresponding to the component. spice_racs_dr1_polspec_{cut,full}.tar: - A tarball containing all of the POLSPECTRA for the 'cut' and second 'full' sets of components described above. These are available in the linked collections. Recommended catalogue subsets: Our 'full' catalogue contains extracted polarisation data for all 105912 Stokes I components detected in our DR1 region. It is important to note that the majority of these do not have reliably detected polarised emission. When using this catalogue please use the provided flags, and uncertainty/quality metrics to derive a subset suitable for your science goals. If you're unsure where to start, these are our recommended basic subsets: - 'goodI' : Where our Stokes I model is reliable -- channel_flag and stokesI_fit_flag are False (this produces the 'cut' catalogue from the 'full'). - 'goodL': Where we have a reliable detection of polarised signal, but not necessarily a reliable RM -- goodI plus leakage_flag is False and snr_polint >= 5. - 'goodRM': Where the RM is reliable -- goodL plus snr_flag is False. These data are derived from RACS-low, described by McConnell et al. (2020), and the RACS-low Stokes I catalogue from Hale et al. (2021). The full description of these data and their processing is available in Thomson et al. (2023). https://research.csiro.au/racs/ https://doi.org/10.1017/pasa.2020.41 McConnell, D., Hale, C., Lenc, E., Banfield, J., Heald, G., Hotan, A., . . . Westmeier, T. (2020). The Rapid ASKAP Continuum Survey I: Design and first results. Publications of the Astronomical Society of Australia, 37, E048. doi:10.1017/pasa.2020.41 https://doi.org/10.1017/pasa.2021.47 Hale, C., McConnell, D., Thomson, A., Lenc, E., Heald, G., Hotan, A., . . . Whiting, M. (2021). The Rapid ASKAP Continuum Survey Paper II: First Stokes I Source Catalogue Data Release. Publications of the Astronomical Society of Australia, 38, E058. doi:10.1017/pasa.2021.47 https://doi.org/10.25919/8zyw-5w85 Hale, Catherine Laura; McConnell, David; Thomson, Alec; Lenc, Emil; Heald, George; Hotan, Aidan; Leung, James; Moss, Vanessa; Murphy, Tara; Pritchard, Joshua; Sadler, Elaine; Stewart, Adam; Whiting, Matthew (2021): ASKAP Project AS110 - The Rapid ASKAP Continuum Survey: Stokes I Source Catalogue Data Release 1. v6. CSIRO. Data Collection. https://doi.org/10.25919/8zyw-5w85 https://data.csiro.au/collection/csiro:58508 Thomson, Alec; McConnell, David; Lenc, Emil; Galvin, Tim; Rudnick, Lawrence; Heald, George; Hale, Catherine Laura; Duchesne, Stefan; Anderson, Craig; Carretti, Ettore; Federrath, Christoph; Gaensler, Bryan; Harvey-Smith, Lisa; Haverkorn, Marijke; Hotan, Aidan; Ma, Jackie; Murphy, Tara; Mcclure-Griffiths, Naomi; Moss, Vanessa; O'Sullivan, Shane; Raja, Wasim; Seta, Amit; Van Eck, Cameron; West, Jennifer; Whiting, Matthew; Wieringa, Mark; Huynh, Minh (2023): Spectra and Polarisation In Cutouts of Extragalactic sources from RACS First Data Release (SPICE-RACS-DR1). v1. CSIRO. Data Collection. https://doi.org/<NN.NNNN>/<NN>/<NNNNNNNNNNN> All Rights (including copyright) CSIRO 2023. Creative Commons Attribution Data is accessible online and may be reused in accordance with licence conditions