NED Digital Object Identifiers

https://doi.org/10.26132/NED1
https://www.ipac.caltech.edu/doi/10.26132/NED1

10.26132/NED1

IPAC

NASA/IPAC Extragalactic Database (NED)

NASA/IPAC Extragalactic Database (NED)

NASA/IPAC Extragalactic Database (NED) is a comprehensive database of multiwavelength data for extragalactic objects, providing a systematic, ongoing fusion of information integrated from hundreds of large sky surveys and hundreds of thousands of research publications. The contents and services span the entire observed spectrum from gamma rays through radio frequencies. As new observations are published, they are cross-identified or statistically associated with previous data and integrated into a unified database to simplify queries and retrieval.

Service

https://ned.ipac.caltech.edu

https://doi.org/10.26132/NED2
https://www.ipac.caltech.edu/doi/10.26132/NED2

10.26132/NED2

IPAC

NASA/IPAC Extragalactic Database (NED)

NED source nomenclature

Thousands of acronyms are used in NED. This service provides the list of acronyms and their definitions and further information links.

Service

https://ned.ipac.caltech.edu/srcnom

https://doi.org/10.26132/NED3
https://www.ipac.caltech.edu/doi/10.26132/NED3

10.26132/NED3

IPAC

NASA/IPAC Extragalactic Database (NED)

NED Gravitational Wave Follow-up (GWF) Service

The NED GWF service facilitates searches for electromagnetic (EM) counterparts to gravitational wave (GW) events. Within minutes after the LIGO/Virgo/KAGRA collaboration issues an alert using the GCN - NASA's Time-Domain and Multimessenger Alert System (https://gcn.nasa.gov/), this NED service responds by cross-matching in 3D the event's HEALPix map with galaxies in the local Universe and the following results are provided: an all-sky image of the probability contours, the location of all galaxies in NED within the 90% probability volume, and the top 20 candidates.

Service

https://ned.ipac.caltech.edu/uri/NED::GWF/

https://doi.org/10.26132/NED4
https://www.ipac.caltech.edu/doi/10.26132/NED4

10.26132/NED4

IPAC

NASA/IPAC Extragalactic Database (NED)

NED Coordinate Calculator

The NED coordinate calculator provides conversions among different coordinate systems: equatorial, ecliptic, galactic, and supergalactic.

Service

https://ned.ipac.caltech.edu/coordinate_calculator

https://doi.org/10.26132/NED5
https://www.ipac.caltech.edu/doi/10.26132/NED5

10.26132/NED5

IPAC

NASA/IPAC Extragalactic Database (NED)

NED Extinction Calculator

The NED extinction calculator returns the foreground Galactic extinction at an input position using the Schlafly & Finkbeiner 2011 (ApJ 737, 103, 2011) recalibration of the Schlegel, Finkbeiner & Davis 1998 (ApJ 500, 525, 1998; SFD98) extinction map. The original SFD98 extinction values are also returned for comparison purposes.

Service

https://ned.ipac.caltech.edu/extinction_calculator

https://doi.org/10.26132/NED6
https://www.ipac.caltech.edu/doi/10.26132/NED6

10.26132/NED6

IPAC

NASA/IPAC Extragalactic Database (NED)

NED Level 5 knowledge base

LEVEL5 provides a curated collection of review articles and important references of current and lasting interest to extragalactic astronomers and cosmologists. Individual extragalactic objects discussed in the text are cross-linked to data in NED, and citations are linked to abstracts and bibliographic information in the NASA Astrophysics Data System (ADS).

Collection

https://ned.ipac.caltech.edu/level5/

https://doi.org/10.26132/NED7
https://www.ipac.caltech.edu/doi/10.26132/NED7

10.26132/NED7

IPAC

NASA/IPAC Extragalactic Database (NED)

Best Practices for Data Publication

This article presents an overview of best practices for publishing data in astronomy and astrophysics journals. These recommendations are intended as a reference for authors to help prepare and publish data in a way that will better represent and support science results, enable better data sharing, improve reproducibility, and enhance the reusability of data. Observance of these guidelines will also help to streamline the extraction, preservation, integration and cross-linking of valuable data from astrophysics literature into major astronomical databases, and consequently facilitate new modes of science discovery that will better exploit the vast quantities of panchromatic and multidimensional data associated with the literature. It encourages authors, journal editors, referees, and publishers to implement the best practices reviewed here, as well as related recommendations from international astronomical organizations such as the International Astronomical Union for publication of nomenclature, data, and metadata.

Text

https://ned.ipac.caltech.edu/docs/BPDP/NED_BPDP.pdf

https://doi.org/10.26132/NED8
https://www.ipac.caltech.edu/doi/10.26132/NED8

10.26132/NED8

IPAC

NASA/IPAC Extragalactic Database (NED)

NED Local Volume Sample (NED-LVS)

NASA/IPAC Extragalactic Database (NED) Local Volume Sample (NED-LVS) is a subset of objects in NED with distances out to 1000 Mpc. Photometry from all-sky surveys (GALEX, 2MASS, and AllWISE) that have been joined into NED are also extracted, with the majority of NED-LVS objects having at least one measurement. These fluxes are used to derive physical properties (SFR and stellar mass) and to estimate the completeness relative to expected local luminosity densities. This sample of galaxies can be used for a wide range of astrophysical studies: star formation, galaxy evolution, large scale structure, follow-up searches to gravitational wave events, etc. This service provides the version of NED-LVS used in the analysis of Cook et al. (2023) as well as future updates that are used in the NED Gravitational Wave Follow-up service.

Service

https://ned.ipac.caltech.edu/NED::LVS/