- ID:
- ivo://nasa.heasarc/skyview/tgss
- Title:
- GMRT 150 MHz All-sky Radio Survey: First Alternative Data Release
- Short Name:
- TGSS
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- The first full release of a survey of the 150 MHz radio sky observed with the Giant Metrewave Radio Telescope between April 2010 and March 2012 as part of the TGSS project. Aimed at producing a reliable compact source survey, the automated data reduction pipeline efficiently processed more than 2000 hours of observations with minimal human interaction. Through application of innovative techniques such as image-based flagging, direction-dependent calibration of ionospheric phase errors, correcting for systematic offsets in antenna pointing, and improving the primary beam model, good quality images were created for over 95 percent of the 5336 pointings. This data release covers 36,900 square degrees (or 3.6 pi steradians) of the sky between -53 deg and +90 deg DEC, which is 90 percent of the total sky. The majority of pointing images have a background RMS noise below 5 mJy/beam with an approximate resolution of 25" x 25" (or 25" x 25" / cos (DEC - 19 deg) for pointings south of 19 deg DEC). The associated catalog has 640 thousand radio sources derived from an initial, high reliability source extraction at the 7 sigma level. The measured overall astrometric accuracy is better than 2" in RA and DEC, while the flux density accuracy is estimated at ~10 percent. Data is stored as 5336 mosaic images (5 deg x 5 deg). <p> <i>SkyView</i> uses Lanczos resampling and Sqrt image scaling by default for this survey. Provenance: TGS ADR Team. This is a service of NASA HEASARC.
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Search Results
- ID:
- ivo://nasa.heasarc/skyview/goodsacisfb
- Title:
- GOODS Chandra ACIS: Full band (0\.5\-8 keV)
- Short Name:
- GOODSACISFB
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- This survey comprises the 2 Ms Chandra Deep Field North and 4 Ms Deep Field South ACIS observations. All observations are co-added into two fields in the north and south. Data are provided in three bands, the soft 0.5-2 keV band, the hard 2.0-8.0 keV and the full 0.5 to 8 keV band. Provenance: Taken from the Neil Brandt's PSU websites for the the <a href="https://personal.psu.edu/wnb3/hdf/hdf-chandra.html">north</a> and <a href="https://personal.psu.edu/wnb3/cdfs/cdfs-chandra.html">south</a>.. This is a service of NASA HEASARC.
- ID:
- ivo://nasa.heasarc/skyview/goodsherschel2
- Title:
- GOODS Herschel 160 micron, DR1 data release
- Short Name:
- GOODSHerschel2
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- GOODS-Herschel is an open time key program of more than 360 hours of observation with the Hershel, SPIRE and PACS, from 100 um and 500. <p> North and South GOODS data is available for 100 and 160 microns (using PACS) but only the northern field is available at 250, 350 and 500 microns (using SPIRE). <p> Note that the scale and resolution of the underlying pixels is different in each band. Provenance: Downloaded from the <a href="https://hedam.lam.fr/GOODS-Herschel/">Herschel Database in Marseille</a>. Release DR1.. This is a service of NASA HEASARC.
- ID:
- ivo://nasa.heasarc/skyview/goodsherschel4
- Title:
- GOODS Herschel 350 micron, DR1 data release
- Short Name:
- GOODSHerschel4
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- GOODS-Herschel is an open time key program of more than 360 hours of observation with the Hershel, SPIRE and PACS, from 100 um and 500. <p> North and South GOODS data is available for 100 and 160 microns (using PACS) but only the northern field is available at 250, 350 and 500 microns (using SPIRE). <p> Note that the scale and resolution of the underlying pixels is different in each band. Provenance: Downloaded from the <a href="https://hedam.lam.fr/GOODS-Herschel/">Herschel Database in Marseille</a>. Release DR1.. This is a service of NASA HEASARC.
- ID:
- ivo://nasa.heasarc/skyview/goodsherschel3
- Title:
- GOODS Herschel 250 micron, DR1 data release
- Short Name:
- GOODSHerschel3
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- GOODS-Herschel is an open time key program of more than 360 hours of observation with the Hershel, SPIRE and PACS, from 100 um and 500. <p> North and South GOODS data is available for 100 and 160 microns (using PACS) but only the northern field is available at 250, 350 and 500 microns (using SPIRE). <p> Note that the scale and resolution of the underlying pixels is different in each band. Provenance: Downloaded from the <a href="https://hedam.lam.fr/GOODS-Herschel/">Herschel Database in Marseille</a>. Release DR1.. This is a service of NASA HEASARC.
- ID:
- ivo://nasa.heasarc/skyview/goodsherschel1
- Title:
- GOODS Herschel 100 micron, DR1 data release
- Short Name:
- GOODSHerschel1
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- GOODS-Herschel is an open time key program of more than 360 hours of observation with the Hershel, SPIRE and PACS, from 100 um and 500. <p> North and South GOODS data is available for 100 and 160 microns (using PACS) but only the northern field is available at 250, 350 and 500 microns (using SPIRE). <p> Note that the scale and resolution of the underlying pixels is different in each band. Provenance: Downloaded from the <a href="https://hedam.lam.fr/GOODS-Herschel/">Herschel Database in Marseille</a>. Release DR1.. This is a service of NASA HEASARC.
- ID:
- ivo://nasa.heasarc/skyview/goodsherschel5
- Title:
- GOODS Herschel 500 micron, DR1 data release
- Short Name:
- GOODSHerschel5
- Date:
- 07 Mar 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- GOODS-Herschel is an open time key program of more than 360 hours of observation with the Hershel, SPIRE and PACS, from 100 um and 500. <p> North and South GOODS data is available for 100 and 160 microns (using PACS) but only the northern field is available at 250, 350 and 500 microns (using SPIRE). <p> Note that the scale and resolution of the underlying pixels is different in each band. Provenance: Downloaded from the <a href="https://hedam.lam.fr/GOODS-Herschel/">Herschel Database in Marseille</a>. Release DR1.. This is a service of NASA HEASARC.
- 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.
- 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.
