What's New with NED

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(Latest Revision: 4 April 2013)

Welcome to the NASA/IPAC Extragalactic Database (NED)

April 2013 Release

New and Improved Functionality

  • Foreground Galactic extinction values (Aλ [mag]) based on Schlafly et al. 2011 are now computed using the latest version of the Schlegel et al. 1998 dust maps and code available at http://www.astro.princeton.edu/~schlegel/dust/.
  • New capability to return foreground Galactic extinction values (Aλ [mag]) from Schlafly et al. 2011 in up to 88 photometric bands in the Customized Output feature of the Build Data Table from Input List tools (By Name and Near Name/Position), and in the By Classifications query form.
  • Corrections were made to the logic for By Parameters (All-Sky) searches. These bug fixes improve searches involving constraints on multiple object types and searches excluding particular name prefixes.
  • The results of Photometric Data searches have been revised such that when Fν in Jansky [Jy] or [W m-2 Hz-1] units are selected for homogenized flux density values derived by NED, these only apply to broad-band photometric measurements; homogenized spectral line measurements are now given in their proper integrated flux units of [Jy Hz] or [W m-2].
  • Notice of Discontinuing Services: Server Mode (nedsrv) soon to be replaced with web services.

Database Contents

The following table gives statistics for data added to NED since the previous public update and total NED holdings:

    Data Type Added Total
    Unique Objects 310,514 177,171,814
    Publication Abstracts 1,401 62,639
    References 3,167 87,104
    Object Links to References 1,672,995 27,563,536
    Multiwavelength Cross-IDs 1,708,218 192,140,592
    Object Associations 1,766 1,400,791
    Photometric Data Points 77,594 1,746,037,957
    Objects with Redshifts 133,971 4,154,567
    Redshift-Independent Distances 225 64,404
    Objects with Redshift-Independent Distances013,407
    Objects with Detailed Classifications6,750 216,012
    Images 27,071 2,725,265
    Spectra 317 478,207
    Detailed Object Notes 522 72,137

Highlights of Latest Additions to Objects and Basic Data

Highlights of Latest Additions to Photometry

Latest Images

  • 26,748 images in the u, g, r, i, and z bands for a sample of 4458 PGC galaxies from the EFIGI catalogue. Baillard et al. 2011A&A...532A..74B
  • 122 images from an H I/Optical Atlas of Isolated Galaxies. D. J. Pisano, Eric M. Wilcots and Charles T. Liu. 2002ApJS..142..161P

Latest Spectra

  • 192 spectra from GHASP: an H-alpha kinematic survey of 203 spiral and irregular galaxies - VII. Epinat et al. 2008MNRAS.390..466E
  • 44 spectra from Comparison of AGN and Nuclear Starburst Activity in Seyfert 1 and 2 Galaxies Based on Near-Infrared 2-4 micron Spectroscopy. Oi et al. 2010PASJ...62.1509O
  • 45 spectra from An H I study of Scd galaxies. Shostak, G. 1975ApJ...198..527S
  • 36 spectra from Observations of Neutral Hydrogen in Bright Southern Galaxies. Whiteoak, J. B., and Gardner, F. F. 1977AuJPh..30..187W

NOTE: If you would like to have your FITS image or spectral data become available for use by other researchers via NED, please leave a comment with your name and email address so that we may contact you.

Latest Review Papers in LEVEL 5 Knowledgebase for Extragalactic Astronomy and Cosmology

The Introduction to NED has more details about all of NED's services, and NED's Features gives a brief overview of NED.

The NED History page has previous NED news.

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