MAGPIS ivo://nasa.heasarc/magpis NASA/GSFC HEASARC Helfand et al. 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source The Multi-Array Galactic Plane Imaging Survey (MAGPIS) maps portions of the first Galactic quadrant with an angular resolution, sensitivity, and dynamic range that surpass existing radio images of the Milky Way by more than an order of magnitude. The source detection threshold at 20 cm is in the range 1-2 mJy over the 85% of the survey region (Galactic longitudes from 5 to 32 degrees and Galactic latitudes within 0.8 degrees of the Galactic plane) not covered by bright extended emission; the angular resolution is ~6". Over 3000 discrete sources (diameters mostly <30") and ~400 diffuse emission regions are catalogued. Additional information and data products, including full-resolution 20 cm images, complementary 90 cm images, regridded MSX 21 micron images, an image atlas of diffuse emission regions are available at the MAGPIS web site <a href="http://third.ucllnl.org/gps">http://third.ucllnl.org/gps</a> This table was created by the HEASARC in June 2006 based on machine-readable versions of Tables 2 and 3 of the above reference which were obtained from the electronic Astronomical Journal web site. This is a service provided by NASA HEASARC . 2006AJ....131.2525H https://heasarc.gsfc.nasa.gov/W3Browse/all/magpis.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=magpis& GET text/xml 180 99999 true 270.04441439 -24.98034533 0.0833333333333333 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=magpis GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_magpis&Action=More+Options&Action=Parameter+Search&ConeAdd=1 RADIO CATALOG 0.0833333333333333 Radio public magpis Multi-Array Galactic Plane Imaging Survey name Source Designation meta.id;meta.main char nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable dec Declination degree pos.eq.dec;meta.main double nullable flux_20_cm Peak 20-cm Flux Density (mJy/beam) mJy/beam phot.flux.density;em.radio double nullable flux_20_cm_error RMS Uncertainty of the 20-cm Flux Density mJy stat.error;phot.flux.density;em.radio double nullable int_flux_20_cm Integrated 20-cm Flux Density (mJy) mJy phot.flux.density;em.radio double nullable major_axis Major Axis Full-Width at Half-Maximum of the Elliptical Gaussian Fit (arcsec) arcsec phys.size.smajAxis double nullable "__x_ra_dec" System unit vector column double nullable "__y_ra_dec" System unit vector column double nullable "__z_ra_dec" System unit vector column double nullable "__row" System index column char nullable flux_21um The 21-um Flux Density from the MSX6C Catalog (Egan et al. 2003) (Jy) Jy phot.flux.density;em.IR.15-30um double nullable flux_8um The 8-um Flux Density from the MSX6C Catalog (Egan et al. 2003) (Jy) Jy phot.flux.density;em.IR.4-8um double nullable source_box_size Source Box Size (arcmin) arcmin phys.angSize double nullable flux_21um_limit Limit Flag for the 21-um Flux Density meta.code;phot.flux.density char nullable flux_8um_limit Limit Flag for the 8-um Flux Density meta.code;phot.flux.density;em.IR.4-8um char nullable snr_names Known Supernova Remnants meta.id char nullable lii Galactic Longitude degree pos.galactic.lon double nullable bii Galactic Latitude degree pos.galactic.lat double nullable minor_axis Minor Axis Full-Width at Half-Maximum of the Elliptical Gaussian Fit (arcsec) arcsec phys.size.sminAxis double nullable scaling_factor Intensity Scaling Factor for Display Purposes mJy/beam double nullable position_angle Position Angle (deg) degree pos.posAng short nullable int_flux_20_cm_flag Flag [E] Indicates the Gaussian Model Is Inadequate & Value Probably Inaccurate meta.code;phot.flux.density;em.radio char nullable