What's New with NED

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(Latest Revision: 22 July 2015)

Welcome to the NASA/IPAC Extragalactic Database (NED)

April-July 2015 Release Highlights

User Interface Upgrades

The new user interface contains the following advances:
  • A smart box on the main screen greatly simplifies common queries using a single entry point. You can enter an object name, an object name and search radius, coordinates and search radius, a refcode, or a ticket number (to check the status of a ByParameters search request). Most standard input formats for celestial coordinates are supported.
  • A new form to Search for Images by Object Name provides a response in the new interface style and paves the way for new functionality under development.

Database Contents

Tabular and graphical summaries of NED's current holdings are presented here.

Cross-IDs and New Objects

  • 383,691 sources from the literature cross-identified with NED objects
  • 79,226 new NED objects

References and Object Pointers

  • 830 new references
  • 278,729 new object links (pointers) to references

Featured Additions to Objects and Basic Data

  • 4,740 new parts of galaxies (molecular clouds, globular clusters, stars) from 8 different journal articles.
  • 54,213 QSOs in SDSS DR9 from The BOSS Ly-{alpha} Forest Sample from SDSS Data Release 9 (Lee, K. et al. 2013AJ....145...69L)
  • 35,448 galaxies from CANDELS Multiwavelength Catalogs: Source Identification and Photometry in the CANDELS UKIDSS Ultra-deep Survey Field (Galametz, A. et al. 2013ApJS..206...10G)
  • 25,356 galaxies observed with Hectospec from Measuring the Ultimate Halo Mass of Galaxy Clusters: Redshifts and Mass Profiles from the Hectospec Cluster Survey (HeCS) (Rines, K. et al. 2013ApJ...767...15R)
  • 101,997 QSOs in SDSS DR7 from SDSS Quasars in the WISE Preliminary Data Release and Quasar Candidate Selection with Optical/Infrared Colors (Wu, X. et al. 2012AJ....144...49W)
  • 50,836 QSOs and Lenses in SDSS DR7 from The Sloan Digital Sky Survey Quasar Lens Search. V. Final Catalog from the Seventh Data Release (Inada, N. et al. 2012AJ....143..119I)
  • 10,443 Galaxy Groups from Multiscale probability mapping: groups, clusters and an algorithmic search for filaments in SDSS (Smith, A. et al. 2012MNRAS.422...25S)
  • 6,722 Herschel-Atlas infrared sources from Herschel-ATLAS: first data release of the Science Demonstration Phase source catalogues (Rigby, E. E. et al. 2011MNRAS.415.2336R)
  • 5,686 Galaxy Groups from Compact groups in theory and practice - IV. The connection to large-scale structure (Mendel, J. et al. 2011MNRAS.418.1409M)
  • 3,397 Galaxy Groups from The Padova-Millennium Galaxy and Group Catalogue (PM2GC): the group-finding method and the PM2GC catalogues of group, binary and single field galaxies (Calvi, R. et al. 2011MNRAS.416..727C)

Photometry

  • Radio: 2.3 GHz fluxes from Multi-epoch Very Long Baseline Interferometric Observations of the Nuclear Starburst Region of NGC 253... (Rampadarath, H. et al. 2014AJ....147....5R)
  • Visual: HST and Lick magnitudes from The Type IIb Supernova 2013df and its Cool Supergiant Progenitor (Van Dyk, S. et al. 2014AJ....147...37V)
  • Millimeter: CARMA CO(1-0) fluxes from Discovery of a Small Central Disk of CO and H I in the Merger Remnant NGC 34 (Fernandez, X. et al. 2014AJ....147...74F)

Redshift-Independent Distances

Images

  • 119 images from The Global Rate and Efficiency of Star Formation in Spiral Galaxies as a Function of Morphology and Environment (Young, Judith. et al. 1996AJ....112.1903Y)

Spectra

  • 373 spectra from Red-channel (6000-8000 A) nuclear spectra of 376 local galaxies (Gavazzi, Giuseppe et al. 2013A&A...558A..68G)
  • 14 spectra from High-redshift QSOs in the FIRST survey (Benn, C. R. et al. 2002MNRAS.329..221B)
  • 127 spectra from The peculiar velocity of the local group-I. HI observations of Sb and Sbc galaxies (Staveley-Smith, L. & Davies, R. D. 1987MNRAS.224..953S)
  • 119 spectra from Neutral hydrogen in isolated galaxies. IV. Results for the Arecibo sample (Haynes M.P., & Giovanelli R. 1984AJ.....89..758H)
  • 192 spectra from An HI survey of southern galaxies ( Reif, K. et al. 1982A&AS...50..451R)

Review Articles in LEVEL 5 Knowledgebase for Extragalactic Astronomy and Cosmology


New User Interface and New Approach for Data Integration

New User Interface

The NED user interface has begun a transition to a new, more modern style. This new interface may be previewed here. Drop down menus may be used to quickly access searches for objects, data, or literature. Clicking one of these options will lead to the classic, familiar search forms for services that have not yet adopted the new style. Searches By (or Near) Object Name, Near Position, and by RefCode (Reference Code) may be typed directly into a prominently featured smart box. The following search forms are available in the new style:

New Approach for Data Integration

NED has implemented a new methodology for integrating data from both very large catalogs (VLCs) containing hundreds of millions of sources, and smaller datasets from the literature. There is a new user interface to Search Objects and Unprocessed Catalog Sources, with an option to include incoming catalog sources that have not yet been cross-identified and had their key parameters fused with other information in NED.

The current release provides access to 471 million catalog sources from the 2MASS Point Source Catalog (2MASS PSC), 42 million catalog sources from the Spitzer Source List (SSTSL2), and 1.6 million catalog sources from the WIde-field nearby Galaxy-cluster survey (WINGS). Over 62 million catalog sources from the GALEX All Sky Survey Catalog (GASC) and the GALEX Medium Imaging Survey Catalog (GMSC) have already been cross-identified with NED objects or promoted to new NED objects.

In the past, cross-identifications between incoming catalog sources and objects in NED were integrated incrementally over many months as the results from cross-matching software were vetted and loaded into the database in chunks spanning across multiple NED updates. This had the disadvantage that only a fraction of catalog sources were accessible in NED until the catalogs were fully processed, and it was not clear exactly what subsets were in NED at any given time. In the new approach, selected parameters (columns) for all catalog sources (rows) are rapidly loaded into a new Catalog Source Representation layer of the database and made available for optional inclusion in search results along with the fully integrated NED objects. A detailed discussion of the ontology of unprocessed catalog sources (Status=S) versus NED objects (Status=O) may be found here.

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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