- ID:
- ivo://nasa.heasarc/skyview/goods-acs-b
- Title:
- GOODS HST ACS B Filter
- Short Name:
- GOODS ACS B
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- This is a <i>SkyView</i> rendering of the HST ACS data as described in the <a href="https://archive.stsci.edu/pub/hlsp/goods/v2/h_goods_v2.0_rdm.html">release document</a>. This comprises four bands of observations of each both the north and south GOODS regions. <p> These data are stored in SkyView as a hierarchical image with 7 levels of pixels, each with a factor of 2 change in scale. Thus the coarsest sampling using pixels 64 times larger than the finest. As we go to coarser pixels, 4 adjacent pixels forming a square are averaged to create the pixel in the next level. The coarsest pixel scale that is at least the resolution requested is used. <p> The exposure times are given as: <table> <tr><th colspan=3> GOODS ACS exposure (s)</th></td></tr> <tr><th>Band</th><th>North></th><th>South</th> <tr><td>z850</td><td>24760</td><td>18232</td></tr> <tr><td>i775</td><td>8530</td><td>7028</td></tr> <tr><td>V606</td><td>5650</td><td>5450</td></tr> <tr><td>B435</td><tr>7200</td><td>7200</td></tr> </table> Provenance: Created by the GOODS team and distributed by MAST. This is a service of NASA HEASARC.
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- ID:
- ivo://nasa.heasarc/skyview/gns
- Title:
- GOODS NICMOS Survey
- Short Name:
- GNS
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- The GOODS NICMOS Survey (GNS) is a 180 orbit Hubble Space Telescope survey consisting of 60 pointings with the NICMOS-3 near-infrared camera. Each pointing is centred on a massive galaxy (M<sub>*</sub> > 1011 M<sub>sun</sub>) in the redshift range 1.7 < z < 3, selected by their optical-to-infrared colours (Papovich+06,Yan+04,Daddi+07) from the GOODS (Great Observatories Origins Deep Survey) fields. <p> The positions of the 60 GNS pointings were optimised to contain as many massive galaxies as possible and are partly overlapping, covering a total area of about 45 arcmin2. The field of view of the NICMOS-3 camera is 51.2 × 51.2 arcsec with a resolution of about 0.1 arcsec/pixel. The PSF has a width of about 0.3 arcsec FWHM. The limiting magnitude in H band reached at 5σ is HAB = 26.8, about 2 magnitudes fainter than in available ground based data of the GOODS fields. [Taken from reference website.] Provenance: University of Nottingham, GNS group.. This is a service of NASA HEASARC.
- ID:
- ivo://nasa.heasarc/skyview/goodsnvla
- Title:
- GOODS North Observations with the VLA
- Short Name:
- GOODSNVLA
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- A combination of VLA measurements in all four configurations combined to generate a very deep image of the GOODS North region. A total of about 150 hours of VLA time was used. Data are sensitive to about 5 microJanskies in the central region. A total of 1230 discrete sources where found in the 40'x40' region. Provenance: VLA Observations taken by Morrison et al. as provided through their <a href="https://www.ifa.hawaii.edu/~morrison/GOODSN/">website</a>.. This is a service of NASA HEASARC.
- ID:
- ivo://nasa.heasarc/skyview/granat
- Title:
- GRANAT/SIGMA Significance
- Short Name:
- GRANAT
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- The Soviet orbital observatory GRANAT was launched in December 1989 and was operational till November 1998. One of the main instruments of the observatory was the French-Soviet hard X-ray coded mask telescope SIGMA (Paul et al.1 1991, Adv.Space Res., 11, 279). It was the first space telescope that used coded aperture technique for reconstruction of sky images in hard X-rays (35-1300 keV). The angular resolution of the telescope was approximately 12' and the accuracy of a source localization is approximately 2-3'.<p> SIGMA discovered numerous interesting hard X-ray sources including GRS 1758-258, which is located only 40' from bright soft X-ray source GX 5-1. It detected hard X-ray flux from X-ray burster A1742-294, which is very near to bright black hole binary 1E1740.7-2942. SIGMA set an upper limit on the hard X-ray flux of from the central supermassive black hole in our Galaxy.<p> During the period 1990-1998 SIGMA observed more that one quarter of the sky with sensitivity better than 100 mCrab. The Galactic Center region had the deepest exposure ( approximately 9 million sec), with the sensitivity to a source discovery (S/N > ~ 5) or approximately 10 mCrab.<p> A list of all detected sources with references to publications on them is presented in the paper of Revnivtsev et al. 2004, Astr. Lett. v.6. In these survey images (40-100 keV) all performed observations are averaged together. Transient sources that were discovered by SIGMA may not visible in the averaged image. <p> This survey has some features that users should keep in mind. The SIGMA telescope is a complicated instrument and is strongly dominated by the accuracy of the background subtraction. The presence of a very bright source in the field of view of the telescope sometimes cannot be fully accounted for and as a result of it some 'ghost' sources can appear. Such features can be seen in the regions near very bright sources like Crab Nebula, Cyg X-1, Nova Per 1992, Nova Mus 1991, Nova Oph 1993, and in the Galactic Center region. In addition to its nominal field of view (~17x17 deg) located around the optical axis of the telescope, SIGMA had another window of relatively high transparency of its shield, approximately 20-30&#176;; apart from the optical axis. Becuase of this a very bright sources like Cyg X-1 can cause non zero illumination of the SIGMA detector if they are located approximately 20-30&#176;; from the optical axis. The ring-like features caused by this effect, can be seen around Cyg X-1, and Nova Per 1992. <p> The count rate of detected sources (or upper limits) can be roughly translated into mCrab using the fact that that Crab nebula gives the count rate approximately 2.8e<sup>-3</sup> cnts/s in the units, provided in 'flux' maps Provenance: High Energy Astrophysics Department, Space Research Institute, Moscow, Russia; CEA, Centre d'Etudes de Saclay Orme des Merisiers, France; Centre d'Etude Spatiale des Rayonnements, Toulouse, France; F&eacute;d&eacute;ration de Recherche Astroparticule et Cosmologie Universit&eacute; de Paris, France. This is a service of NASA HEASARC.
- ID:
- ivo://irsa.ipac/GOALS/Images
- Title:
- Great Observatories All-sky LIRG Survey
- Short Name:
- GOALS
- Date:
- 27 Sep 2024
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- The GOALS sample consists of a total of 179 LIRGs (log (L_IR/L_sun) = 11.0-11.99) and 22 ultra-luminous infrared galaxies (ULIRGs: log (L_IR/L_sun) > 12.0) selected from the IRAS Revised Bright Galaxy Sample; these 201 objects comprise a statistically complete flux-limited sample of infrared-luminous galaxies in the local universe. The GOALS objects have been the subject of an intense multi-wavelength observing campaign, including space-based imaging and spectroscopy from Spitzer and Herschel.
- ID:
- ivo://irsa.ipac/Spitzer/Images/GOODS
- Title:
- Great Observatories Origins Deep Survey
- Short Name:
- GOODS
- Date:
- 13 Jun 2023 01:00:00
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- The Great Observatories Origins Deep Survey (GOODS) aims to unite extremely deep observations from NASA's Great Observatories (Spitzer, Hubble and Chandra), ESA's Herschel and XMM-Newton, and the most powerful ground-based facilities. The aim is to survey the distant universe to the faintest flux limits across the broadest range of wavelengths.
- ID:
- ivo://mast.stsci/siap/goods.hst
- Title:
- Great Observatories Origins Deep Survey (GOODS)
- Short Name:
- HST.GOODS
- Date:
- 23 Jul 2020 19:32:07
- Publisher:
- Space Telescope Science Institute Archive
- Description:
- GOODS aims to unite extremely deep observations from NASA's Great Observatories, the Spitzer Space Telescope, Hubble, and Chandra, ESA's XMM-Newton, and from the most powerful ground-based facilities, to survey the distant universe to the faintest flux limits across the broadest range of wavelengths. GOODS will survey a total of roughly 320 square arcminutes in two fields centered on the Hubble Deep Field North and the Chandra Deep Field South.
- ID:
- ivo://mast.stsci/siap-cutout/goods.hst
- Title:
- Great Observatories Origins Deep Survey (GOODS) Cutout Service
- Short Name:
- HST.GOODS.Cutout
- Date:
- 05 Dec 2018 16:38:09
- Publisher:
- Space Telescope Science Institute Archive
- Description:
- GOODS aims to unite extremely deep observations from NASA's Great Observatories, the Spitzer Space Telescope, Hubble, and Chandra, ESA's XMM-Newton, and from the most powerful ground-based facilities, to survey the distant universe to the faintest flux limits across the broadest range of wavelengths. GOODS will survey a total of roughly 320 square arcminutes in two fields centered on the Hubble Deep Field North and the Chandra Deep Field South.
- ID:
- ivo://svo.cab/gtc_osiris
- Title:
- GTC OSIRIS Simple Image Access Service
- Short Name:
- GTC OSIRIS
- Date:
- 29 May 2020 10:28:02
- Publisher:
- Spanish Virtual Observatory
- Description:
- GTC OSIRIS Simple Image Access Service
- ID:
- ivo://nasa.heasarc/skyview/gtee
- Title:
- GTEE 0035 MHz Radio survey
- Short Name:
- GTEE
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- This survey is a mosaic of data taken at the low frequency T-array near Gauribidanur, India. The data was distributed in the NRAO Images from the Radio Sky CD ROM. <p> The original 287x101 tiles had only 1 pixel overlap. To allow higher order resampling, the data were retiled into two hemisphere files of 1726x600 pixels with an overlap of 10 pixels. <p> The southernmost tiles were only 287x100 pixels. We assumed that bottom row of these tiles (as compared with the others) was truncated. Provenance: . This is a service of NASA HEASARC.
