The NASA/IPAC Extragalactic Database (NED): Enhanced Content and New Functionality

Details The NASA/IPAC Extragalactic Database (NED): Enhanced Content and New Functionality The NASA/IPAC Extragalactic Database (NED): Enhanced Content and New Functionality

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21734408s&link_type=abstract

American Astronomical Society, AAS Meeting #217, #344.08; Bulletin of the American Astronomical Society, Vol. 43, 2011

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Scientific paper

New content and science functionality of the NASA/IPAC Extragalactic
Database (NED) are presented. New content includes 230,000 objects from
the SWIRE catalog (2008MNRAS.386..697R), 100,000 Chandra Source Catalog
v1.1 objects (2010ApJS..189...37E), 13,000 objects in the Extragalactic
Distance Database (EDD-2009AJ....138.1938C), 6,000 objects and redshifts
from the WINGS survey (2009A&A...495..707C) plus tens of thousands of
objects reported in the current refereed literature. The NED-D Distance
database has been updated to contain 36,000 distances for 9,000
galaxies. The searchable Galaxy Classification service released in
January 2010 continues to grow with past and current published data
offering Galaxy Morphologies in both optical and radio regimes, Activity
and Spectral Types, Luminosity Classes and more. New functionality is
introduced that enables users to control what parameters are returned
for objects selected with constraints on galaxy classifications. In
addition to selection or deselection of basic source parameters such as
coordinates and redshift, the Customized Output feature also enables
users to extract detailed measurements such as multi-wavelength
photometry and diameters (as available), all from a single query. The
resultant data table lists each requested parameter in a separate
column, one row for each object in the sample, making further analysis
more convenient. In the coming year this capability will be expanded to
provide more dynamic and flexible options, and it will be extended to
other types of NED queries. Hardware and software modifications will
also allow more frequent updates of the NED database. Researchers are
encouraged to visit the NED exhibit booth at this meeting for a
demonstration and further information. NED is operated by the Jet
Propulsion Laboratory, California Institute of Technology, under
contract with the National Aeronautics and Space Administration.

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