June-July 2017 Release Highlights
(Latest Revision: 20 July 2017)
Some objects that were assigned a SDSS-DR13 spectroscopic redshift as
the highest-ranked ("preferred") value in the 2017 June NED release were later
found to be inconsistent with previously established redshifts in NED. In the
July 20 NED update, the preferred redshift for such objects have been returned
to the values assigned prior to June 28, 2017. If you used redshifts or
information derived from redshifts between June 29 and July 20, 2017, we
encourage you to access NED again for the latest updates. We apologize for
It is important to note that as the volume, rate, and complexity of data flowing
into NED grow, the team is continuously refining and vetting the results of
rule-based algorithms that assign ranks and select "preferred" values of
fundamental measurements such as the positions and redshifts that appear
by default in object search results. Therefore, the highest ranked values
will continue to change over time as new data are merged into the database
and ranking criteria become more sophisticated via scientific vetting.
Also, we encourage users interested in comparing the uncertainties, measurement
methods and other metadata, or investigating potential physical differences
among the individual measurements available from various survey catalogs and
publications, to inspect the detailed data frames available in NED.
Tabular summaries of NED's current holdings are presented here.
3,231 new photometric data points integrated into SEDs, including:
RADIO : VLA fluxes from X-ray emission from star-forming galaxies -
III. Calibration of the LX-SFR relation up to redshift z ~
(Mineo, S. et al.
VIS : VLT magnitudes from On the connection between the
intergalactic medium and galaxies: the H I-galaxy cross-correlation at z
(Tejos, Nicolas et al.
XRAY : Chandra fluxes from First X-ray observations of low-power
compact steep spectrum sources
(Kunert-Bajraszewska, M. et al.
44 images from
Powerful Activity in the Bright Ages. I. A Visible/IR Survey of High
Redshift 3C Radio Galaxies and Quasars
(Hilbert et al.
81,001 spectra from
The WiggleZ Dark Energy Survey: survey design and first data release
(Drinkwater et al.
64 spectra from
Optical Spectra of a Complete Sample of Radio Sources. I. The Spectra
(Lawrence et al.
Gas Accretion and Star-Formation Rates with IFUs and Background Quasars
(Bouché, Nicolas F., 2017ASSL..430..355B)
Gas Accretion and Angular Momentum
(Stewart, Kyle R., 2017ASSL..430..249S)
Gas Accretion and Galactic Chemical Evolution: Theory and
(Finlator, Kristian, 2017ASSL..430..221F)
The Circumgalactic Medium in Massive Halos
(Chen, Hsiao-Wen, 2017ASSL..430..167C)
Gas Accretion Traced in Absorption in Galaxy Spectroscopy
(Rubin, Kate H. R., 2017ASSL..430...95R)
Gas Accretion and Star Formation Rates
(Sánchez Almeida, Jorge, 2017ASSL..430...67S)
Neutral Gas Accretion onto Nearby Galaxies
(Lockman, Felix J., 2017ASSL..430...49L)
Cold Fronts: Probes of Plasma Astrophysics in Galaxy Clusters
(ZuHone, J.A. and Roediger, E., 2016JPlPh..82c5301Z)
The Redshift of Extragalactic Nebulae
(Zwicky, Fritz, 1933AcHPh...6..110Z)