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141. GALEX Atlas of Nearby Galaxies
ID:
ivo://mast.stsci/siap/galex_atlas
Title:
GALEX Atlas of Nearby Galaxies
Short Name:
GALEX_Atlas
Date:
25 Jun 2018 19:13:16
Publisher:
Space Telescope Science Institute Archive
Description:
The GALEX Atlas of Nearby Galaxies contains images of 1034 nearby galaxies recently observed by the GALEX satellite in its far-ultraviolet (FUV; 1516A) and near-ultraviolet (NUV; 2267A) bands. The Atlas was prepared by A. Gil de Paz,S. Boissier, B.F. Madore, M. Seibert and associated members of the GALEX Team. The full paper is posted on astroph/0606440 and will be published in ApJS in 2007.
142. Gamma-Ray Bursts from the Interplanetary Network
ID:
ivo://nasa.heasarc/ipngrb
Title:
Gamma-Ray Bursts from the Interplanetary Network
Short Name:
GRB/IPN
Date:
18 Apr 2025
Publisher:
NASA/GSFC HEASARC
Description:
The Interplanetary Network (IPN) is a group of spacecraft equipped with gamma-ray burst detectors used to localize gamma-ray bursts (GRB) and soft gamma repeaters (SGRs, or magnetars). The astronomical locations of GRBs are determined by the comparison of the arrival times of the event at the locations of the detectors used on different space missions. The precision is proportional to the distance of spacecraft separations, so that the localizational accuracy of a network with baselines of thousands of light-seconds can be equal or superior to that of any other technique. The primary disadvantage of the IPN method, however, is the 1-day to 1.5-day delay in the acquisition of data from all the spacecraft in the network. Interplanetary GRB networks have been in existence since 1977, contributing to the studies of various astrophysical gamma-ray transients, most notably GRBs and SGRs (soft gamma repeaters). The IPN3 began operations in 1990, with the launch of the Ulysses spacecraft. It was joined by the Compton Gamma Ray Observatory in 1991. Pioneer Venus Orbiter, Mars Observer, and the Italian X-ray astronomy satellite BeppoSAX were part of the network while they were operating. Twenty-six experiments or missions have joined the network so far. Today, the main spacecrafts contributing their data are Konus-WIND, Mars Odyssey, INTEGRAL, RHESSI, Swift, Agile, BepiColombo, and Fermi. XMM-Newton and MAXI are kept to record the cosmic ray and SGR but not used for triangulation because of the different energy range. The IPNGRB database table is derived from a list provided by Kevin Hurley <khurley@ssl.berkeley.edu>, based on the IPN3. The initial list also includes particles and solar events as well as unconfirmed SGRs and GRBs. The IPNGRB database includes only the observations of confirmed cosmic gamma-ray bursts and SGR since the launch of the Ulysses spacecraft. It is updated every time a new list is provided to the HEASARC. This HEASARC catalog is derived from the master list of IPN3 events provided by Kevin Hurley. He also provided a FORTRAN program that generates the list of selected events. The output of this program is run at GSFC and ingested into the HEASARC database system. Information on the IPN3 system is available at <a href="http://ipn3.ssl.berkeley.edu/">http://ipn3.ssl.berkeley.edu/</a>. <p> Information on the IPN can be found at <a href="http://heasarc.gsfc.nasa.gov/docs/heasarc/missions/ipn.html">http://heasarc.gsfc.nasa.gov/docs/heasarc/missions/ipn.html</a>. <p> In December 2021 Kevin Hurley passed away. He was one of the initiator of the IPN and its evolution. The last table provided is dated August 2021. This is a service provided by NASA HEASARC .
143. Gamma-RaySourceDetailedCatalog(Macomb&Gehrels1999)
ID:
ivo://nasa.heasarc/mggammadet
Title:
Gamma-RaySourceDetailedCatalog(Macomb&Gehrels1999)
Short Name:
MGGAMMADET
Date:
18 Apr 2025
Publisher:
NASA/GSFC HEASARC
Description:
This database table contains the slightly revised contents of the detailed Tables 2A - 2G from the General Gamma-Ray Source Catalog of Macomb & Gehrels (1999). It lists details of all known gamma-ray observations within the energy range from 50 keV to ~1 TeV for 314 discrete gamma-ray sources that were listed in Tables 2A - 2G of the published version of this catalog, including all 310 sources listed in the published Summary Table 1, together with 4 sources (2CG 054+01, A0620-00, GX 340+0, and H1822-000) that were listed only in Table 2 of the published catalog but were (presumably accidentally) omitted from Table 1. The positions for the sources in the present database were taken from Table 1 of the General Gamma-Ray Source Catalog. Thus, this table is essentially a compilation of gamma-ray observations of discrete sources as known to the authors as of early 1999. There is another HEASARC database table called the Gamma-Ray Source Summary Catalog (Macomb & Gehrels 1999) or MGGAMMACAT that contains the summary information on these sources that was given in Table 1 of the General Gamma-Ray Source Catalog. As noted above, this is a slightly revised version compared to the published Tables 2A - 2G. The known differences between the HEASARC and published versions are discussed in the HEASARC_Version section of the help documentation. This database table was created by the HEASARC in March 2002 based upon machine-readable versions of Tables 2A-2G of the Macomb & Gehrels (1999) General Gamma-Ray Source Catalog that were supplied by the authors. One duplicate entry was removed from this table in June 2019. This is a service provided by NASA HEASARC .
144. GAVO Data Center Obscore Form
ID:
ivo://org.gavo.dc/obsform/q/web
Title:
GAVO Data Center Obscore Form
Short Name:
obscore web
Date:
27 Dec 2024 08:31:13
Publisher:
The GAVO DC team
Description:
This is a form-based service allowing users to run simple queries against GAVO Data Center's ivoa.obscore table, with some nods to users looking of data near the optical waveband. For serious use, the `obscore table`_ should be queried through TAP. Note that queries without spatial constraints may take time out. You probably ought to switch to async TAP if you really want to run such queries. .. _obscore table: /tableinfo/ivoa.obscore?tapinfo=true
145. Gemini Science Archive
ID:
ivo://cadc.nrc.ca/archive/gsa
Title:
Gemini Science Archive
Short Name:
GSA
Date:
15 Jun 2019 21:15:03
Publisher:
Canadian Astronomy Data Centre
Description:
Gemini Science Archive web site
146. Gemini Telescope Archive
ID:
ivo://cadc.nrc.ca/GEMINI
Title:
Gemini Telescope Archive
Short Name:
Gemini Archive
Date:
15 Jun 2019 21:15:19
Publisher:
Canadian Astronomy Data Centre
Description:
147. GingaBackgroundLightcurves&Spectra
ID:
ivo://nasa.heasarc/gingabgd
Title:
GingaBackgroundLightcurves&Spectra
Short Name:
GINGABGD
Date:
18 Apr 2025
Publisher:
NASA/GSFC HEASARC
Description:
The GINGABGD database table contains a summary of the contents of the Ginga pointed observations of (nominally empty) background fields. This table has been produced from the raw Ginga LAC First Reduction Files (FRFs), and contains information of the individual pointings in addition to FITS spectra and light curves, HDS and FITS data cubes and the plots produced during the pipeline processing. These products can be used with either the Ginga data analysis software or the <a href="/docs/xanadu/xanadu.html">XANADU software suite</a>. This archive (database and all the associated products) is a copy of the GINGABGD data products held at the Leicester Data Archive Service (<a href="http://ledas-www.star.le.ac.uk/">http://ledas-www.star.le.ac.uk/</a>). It was delivered to the HEASARC as part of archive exchange between data centers to facilitate the data transfer across the Atlantic. This is a service provided by NASA HEASARC .
148. Ginga LAC Log
ID:
ivo://nasa.heasarc/gingalog
Title:
Ginga LAC Log
Short Name:
GINGA
Date:
18 Apr 2025
Publisher:
NASA/GSFC HEASARC
Description:
The GINGALOG database table contains selected information from the Large Area Counter (LAC) aboard the third Japanese X-ray astronomy satellite Ginga. The Ginga experiment began on day 36, 5 February 1987 and ended in November 1991. Ginga consisted of the LAC, the all-sky monitor (ASM) and the gamma-ray burst detector (GBD). The satellite was in a circular orbit at 31 degree inclination with apogee 670 km and perigee 510 km, and with a period of 96 minutes. A Ginga observation consisted of varying numbers of major frames which had lengths of 4, 32, or 128 seconds, depending on the setting of the bitrate. Each GINGALOG database entry is the first record of a series of observations having the same values of "ACS MONITOR" (Attitude Control System). When this value changes, a new FITS file was written. The other Ginga catalog database, GINGAMODE is also a subset of the same LAC dump file used to create GINGALOG. GINGAMODE contains a listing whenever any of the following changes: "BITRATE", "LACMODE", "DISCRIMINATOR", or "ACS MONITOR". Thus, GINGAMODE monitors changes in several parameters and GINGALOG is a basic log of all the FITS files. Both databases point to the corresponding archived Flexible Image Transport System (FITS) files, but GINGAMODE may have more than one entry for a given FILE_LCURVE in the database. The user is invited to browse though the observations available from Ginga using GINGALOG or GINGAMODE, then extract the FITS files for more detailed analysis. The Ginga LAC Log Catalog was prepared from data sent to NASA/GSFC from the Institute of Space and Astronautical Science (ISAS) in Japan. This is a service provided by NASA HEASARC .
149. Ginga LAC Raw Data
ID:
ivo://nasa.heasarc/gingaraw
Title:
Ginga LAC Raw Data
Short Name:
GINGARAW
Date:
18 Apr 2025
Publisher:
NASA/GSFC HEASARC
Description:
The GINGARAW database table provides access to the raw GINGA files in FITS format for the LAC experiment. Ginga was the third Japanese X-ray astronomy satellite. It was launched into low Earth orbit on 5th February 1987 and re-entered the atmosphere on 1st November 1991. The scientific payload consisted of the Large Area Counter (LAC; Turner et al. 1989), the All-Sky Monitor (ASM; Tsunemi et al. 1989) and the Gamma-ray Burst Detector (GBD; Murakami et al. 1989). A full description of the satellite is given in Makino et al. (1987). During its lifetime Ginga performed over 1000 pointed observations of approximately 350 different targets, covering all then known classes of cosmic X-ray sources. The LAC experiment, sensitive to X-rays with energy 1.5-37 keV, was the main scientific instrument aboard Ginga. It was designed and built under a Japan-UK collaboration (ISAS, U. Tokyo, Nagoya U., U. Leicester, Rutherford Appleton Lab). It consisted of an array of eight collimated co-aligned proportional counters with a total effective area of approximately 4000 cm<sup>2</sup>. Steel collimators restricted the field of view to 1.1 x 2.0 degrees (FWHM). This database table was last updated by the HEASARC in August 2005. Galactic coordinates were added and some parameters were renamed to adhere to the HEASARC's current parameter naming conventions. This is a service provided by NASA HEASARC .
150. GingaSourceLightcurves&Spectra
ID:
ivo://nasa.heasarc/gingalac
Title:
GingaSourceLightcurves&Spectra
Short Name:
GINGALAC
Date:
18 Apr 2025
Publisher:
NASA/GSFC HEASARC
Description:
The GINGALAC database table contains a summary of the contents of the Ginga pointed observations. This table has been produced from the raw Ginga LAC First Reduction Files (FRFs) and contains information of the individual pointings in addition to FITS spectra and light curves, HDS and FITS data cubes and the plots produced during the pipeline processing. These products can be used with either the Ginga data analysis software or the <a href="/docs/xanadu/xanadu.html">XANADU software suite</a>. This archive (database and all the associated products) is a copy of the GINGA LAC data products held at the Leicester Data Archive Service (<a href="http://ledas-www.star.le.ac.uk">http://ledas-www.star.le.ac.uk</a>). It was delivered to the HEASARC in 1999 as part of an archive exchange between the data centers. The original version was updated in October 2008, when the positions (which had been created assuming the wrong equinox) were corrected; in addition, the values of the nh parameter were corrected. This is a service provided by NASA HEASARC .

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