February 2024 Release Highlights
Database Contents
Tabular summaries of NED's current holdings are presented here.
Graphic summaries are presented here, updated with plots from the NED Local Volume Sample (NED-LVS; Cook et al. 2023), assessing the completelness of the galaxy census per unit volume.
References and Object Pointers
171,579 new object links (pointers) to 813 new references including:
-
7,070 galaxies from
Systematically Measuring Ultra-diffuse Galaxies (SMUDGes)
(Zaritsky, D. et al.,
2023ApJS..267...27Z
)
-
70,438 Chandra sources from
Classifying Unidentified X-Ray Sources in the Chandra Source Catalog Using a Multiwavelength Machine-learning Approach
(Yang, H. et al.,
2022ApJ...941..104Y
)
-
2,038 radio sources from
The GLEAM 4-Jy (G4Jy) Sample
(White, S. V. et al.,
2020PASA...37...18W
)
-
6,143 positions and redshifts for clusters of galaxies from
AMICO galaxy clusters in KiDS-DR3
(Lesci, G. F. et al.,
2022A&A...665A.100L
)
-
7,100 positions and redshifts for clusters of galaxies from
Evolution of the cluster optical galaxy luminosity function in the CFHTLS
(Sarron, F. et al.,
2018A&A...613A..67S
)
Cross-IDs and New Objects
-
67,441 sources from the literature cross-identified with NED objects
-
21,421 new NED objects including galaxies, quasars, clusters of galaxies,
supernovae, globular clusters as well as unidentified radio, visual,
infrared, X-ray, and gamma-ray sources
-
847 Supernovae through December 2023 from Transient Name Server
Redshifts
-
161,668 additional redshifts
-
24,185 more objects with redshifts
For highlights in previous releases, please see Archived Release Notes.