- ID:
- ivo://nasa.heasarc/skyview/stripe82vla
- Title:
- VLA Survey of SDSS Stripe 82
- Short Name:
- Stripe82VLA
- Date:
- 11 Apr 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- This survey is a deep, high resolution radio survey of a relatively small region that has particularly deep coverage in the Sloan Digital Sky Survey. As described in the reference abstract: This is a high-resolution radio survey of the Sloan Digital Sky Survey (SDSS) Southern Equatorial Stripe, a.k.a., Stripe 82. This 1.4 GHz survey was conducted from 2007 to 2009 with the Very Large Array primarily in the A-configuration, with supplemental B-configuration data to increase sensitivity to extended structure. The survey has an angular resolution of 1.8" and achieves a median rms noise of 53 microJy/beam over 92 square degrees. This is the deepest 1.4 GHz survey to achieve this large of an area filling in the phase space between small&deep and large&shallow surveys. <p> The astrometric accuracy of the data is excellent with errors in observed sources of 0.10" in both RA and declination. A comparison with the SDSS DR7 Quasar Catalog confirms that the astrometry is well tied to the optical reference frame with mean offsets of 0.02+/-0.01" in RA and 0.01+/-0.02 in declination. Provenance: TBD. This is a service of NASA HEASARC.
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Search Results
- ID:
- ivo://org.gavo.dc/emi/q/s
- Title:
- VLBI images of Lockman Hole radio sources
- Short Name:
- VLBI-Lockman
- Date:
- 27 Dec 2024 08:31:12
- Publisher:
- The GAVO DC team
- Description:
- These are 1.4GHz Very Long Baseline Interferometry images of 532 radio sources with a flux density exceeding 100uJy as determined by Ibar et al. (2009, MNRAS, 397, 281), obtained between 2010-06-03 and 2010-09-03. For all fields, we give frames processed using natural weighting to preserve maximal sensitivity. For the 65 detected sources, we additionally give frames processed using uniform weighting to suppress sidelobes (see Middelberg et al. 2013, A&A 551, 97 for details) in flux density measurements. Some sources have larger images to cover a larger area because the initial coordinates were not sufficiently accurate.
- ID:
- ivo://nasa.heasarc/skyview/hudfisaac
- Title:
- VLT ISAAC Ks Observations of the Southern Hubble Ultradeep Field
- Short Name:
- HUDFISAAC
- Date:
- 11 Apr 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- A very deep Ks observation of the Hubble Ultradeep Field. This observation is approximately 0.6 magnitudes deeper than the GOODS ISAAC Ks image but covers only small fraction of the area. Provenance: Data downloaded from VLT archive. This is a service of NASA HEASARC.
- ID:
- ivo://vopdc.obspm/gepi/vopsat
- Title:
- VO Paris Southern Atlas
- Short Name:
- VOPSAT
- Date:
- 10 Jan 2017
- Publisher:
- Paris Astronomical Data Centre - GEPI
- Description:
- VOPSAT is a set of southern sky digital surveys based on ESO-R, SRC-J and POSS1-E atlases. The plates have been digitized with the MAMA microdensitometer with a resolution of 0.7 arc-sec. Pixel resampling will allow mosaicing neighbouring Schmidt fields up to hundreds of square degrees.
- ID:
- ivo://nasa.heasarc/skyview/wenss
- Title:
- Westerbork Northern Sky Survey
- Short Name:
- WENSS
- Date:
- 11 Apr 2025
- Publisher:
- NASA/GSFC HEASARC
- Description:
- The Westerbork Northern Sky Survey (<i>WENSS</i>) is a low-frequency radio survey that covers the whole sky north of delta=30 degree at a wavelength of 92 cm to a limiting flux density of approximately 18 mJy (5 sigma). This survey has a resolution of 54" x 54" cosec (delta) and a positional accuracy for strong sources of 1.5''. <p> Further information on the survey including links to catalogs derived from the survey is available at the <a href="https://web.archive.org/web/20041204180313/http://www.strw.leidenuniv.nl/wenss/"><i>WENSS</i> website</a>. <p> The <i>WENSS</i> survey is included on the <b>SkyView High Resolution Radio Coverage </b><a href="https://skyview.gsfc.nasa.gov/images/high_res_radio.jpg"> map</a>. This map shows coverage on an Aitoff projection of the sky in equatorial coordinates. <p> Provenance: <i>WENSS</i> Team. Data downloaded from <a href=ftp://vliet.strw.leidenuniv.nl/pub/wenss/HIGHRES/> <i>WENSS</i> FTP site</a> 1999-03-18. The <i>WENSS</i> project is a collaboration between the <a href="https://www.astron.nl/astronomy/">Netherlands Foundation for Research in Astronomy</a> (NFRA/ASTRON) and the <a href="https://local.strw.leidenuniv.nl/">Leiden Observatory</a>.. This is a service of NASA HEASARC.
- ID:
- ivo://ia2.inaf.it/hosted/wings/siap/opt
- Title:
- WINGS Optical wide--field images
- Short Name:
- WINGSOptIma
- Date:
- 13 Mar 2019 11:37:53
- Publisher:
- IA2
- Description:
- WINGS (WIde-field Nearby Galaxy-cluster Survey) is an all-sky (|b|>20) survey of a complete, X-ray selected sample of galaxy clusters in the redshift range 0.04-0.07. The core of the WINGS project is the optical (B,V) imaging survey. It provides photometric data for huge samples of galaxies (~550,000) and stars (~190,000) in the inner field (34'x34') of 77 nearby galaxy clusters. (http://adsabs.harvard.edu/abs/2006A%26A...445..805F)
- ID:
- ivo://irsa.ipac/WISE/Images/All-Sky/L3a
- Title:
- WISE All-Sky 4-band Atlas Coadded Images
- Short Name:
- WISE All-Sky L3A
- Date:
- 16 Mar 2017 01:00:00
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- NASA's Wide-field Infrared Survey Explorer (WISE) mapped the sky at 3.4, 4.6, 12, and 22 μm (W1, W2, W3, W4) with an angular resolution of 6.1", 6.4", 6.5", & 12.0" in the four bands. The WISE All-Sky Image Atlas is comprised of 18,240 4095x4095 pix at 1.375"/pix 18,240 match-filtered, calibrated and coadded FITS format image sets.
- ID:
- ivo://irsa.ipac/WISE/Images/All-Sky/L1b
- Title:
- WISE All-Sky 4-band Single-Exposure Images
- Short Name:
- WISE All-Sky L1b
- Date:
- 16 Mar 2017 01:00:00
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- NASA's Wide-field Infrared Survey Explorer (WISE) mapped the sky at 3.4, 4.6, 12, and 22 μm (W1, W2, W3, W4) with an angular resolution of 6.1", 6.4", 6.5", & 12.0" in the four bands. The WISE All-Sky Release Single-Exposure images consist of 1,491,686 photometrically and astrometrically calibrated 1016x1016 pix at 2.75"/pix FITS image sets for each individual WISE exposure taken between 7 January and 6 August 2010.
- ID:
- ivo://irsa.ipac/WISE/Images/Allsky
- Title:
- WISE All-Sky Image Atlas
- Short Name:
- WISE_Allsky
- Date:
- 01 Oct 2024
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- The Wide-field Infrared Survey Explorer (WISE; Wright et al. 2010, AJ, 140, 1868) is a NASA Medium Class Explorer mission that conducted a digital imaging survey of the entire sky in the 3.4, 4.6, 12 and 22 um mid-infrared bandpasses (hereafter W1, W2, W3 and W4). WISE produced and released to the world astronomical and educational communities and general public a digital Image Atlas covering the sky in the four survey bands, and a reliable Source Catalog containing accurate photometry and astrometry for over 500 million objects. The WISE Image Atlas is comprised of 18,240 4095x4095 pix @1.375"/pix FITS format image sets. One image set is produced for each Atlas Tile. Each image set consists of four intensity images, four depth of coverage maps, and four uncertainty maps.
- ID:
- ivo://irsa.ipac/WISE/Images/AllWISE
- Title:
- WISE AllWISE Image Atlas
- Short Name:
- WISE_AllWISE
- Date:
- 01 Oct 2024
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- The AllWISE program extends the work of the successful Wide-field Infrared Survey Explorer mission (WISE; Wright et al. 2010, AJ, 140, 1868) by combining data from the cryogenic and post-cryogenic survey phases to form the most comprehensive view of the mid-infrared sky currently available. AllWISE has produced a new Source Catalog and Image Atlas with enhanced sensitivity and accuracy compared with earlier WISE data releases. Advanced data processing for AllWISE exploits the two complete sky coverages to measure source motions for each Catalog source, and to compile a massive database of light curves for those objects. WISE is a National Aeronautics and Space Administration (NASA) Medium Class Explorer mission that scanned the sky methodically in the 3.4, 4.6, 12 and 22 #m mid-infrared bandpasses (hereafter W1, W2, W3 and W4) in 2010 and 2011. The 40 cm WISE telescope and payload equipped with four 1024x1024 pixel focal plane detector arrays were cooled by a dual-stage solid hydrogen cryostat. WISE carried out its 4-Band (or Full) Cryogenic survey from 2010 January 7 to 2010 August 6, observing the sky 1.2 times with all four detectors operating at full sensitivity. After the hydrogen ice in the outer cryogen tank evaporated, WISE surveyed an additional 30% of the sky during its 3-Band Cryo phase, with the W1 and W2 detectors operating at near full sensitivity, and the W3 focal plane operating at reduced sensitivity. The NEOWISE Post-Cryo phase (Mainzer et al. 2011 ApJ, 731, 53), funded by the NASA Planetary Division, started on 2010 September 29 after cryogen in both tanks was exhausted, and continued until 2011 February 1. NEOWISE Post-Cryo observations covered 70% of the sky with W1 and W2 detectors operating at near full sensitivity. Images and extracted source data from each of the three survey phases were release separately in the March 2012 All-Sky Data Release, the June 2012 3-Band Cryo Data Release, and the May 2013 NEOWISE Post-Cryo Release.
