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- ID:
- ivo://astron.nl/lotss_dr2/q/query_mosaics
- Title:
- LoTSS-DR2 mosaics
- Short Name:
- "Mosaics"
- Date:
- 28 Sep 2023 14:12:45
- Publisher:
- ASTRON
- Description:
- In this data release from the ongoing LOw-Frequency ARray (LOFAR) Two-metre Sky Survey (LoTSS) we present 120-168 MHz images covering 27% of the northern sky. Our coverage is split into two regions centred at approximately 12h45m +44°30′ and 1h00m +28°00′ and spanning 4178 and 1457 square degrees respectively. The images were derived from 3,451 hrs (7.6 PB) of LOFAR High Band Antenna data which were corrected for the direction-independent instrumental properties as well as direction-dependent ionospheric distortions during extensive, but fully automated, data processing. A catalogue of 4,395,448 radio sources is derived from our total intensity (Stokes I) maps, where the majority of these have never been detected at radio wavelengths before. At 6′′ resolution, our full bandwidth Stokes I continuum maps with a central frequency of 144 MHz have: a median rms sensitivity of 83 μ Jy/beam; a flux density scale accuracy of approximately 10%; an astrometric accuracy of 0.2′′; and we estimate the point-source completeness to be 90% at a peak brightness of 0.8 mJy/beam. By creating three 16 MHz bandwidth images across the band we are able to measure the in-band spectral index of many sources, albeit the error on the derived spectral index is > ±0.2 which is a consequence of our flux-density scale accuracy and small fractional bandwidth. Our circular polarisation (Stokes V) 20′′ resolution 120-168 MHz continuum images have a median rms sensitivity of 95 μ Jy/beam, and we estimate a Stokes I to Stokes V leakage of 0.056%. Our linear polarisation (Stokes Q and Stokes U) image cubes consist of 480 97.6 kHz wide planes and have a median rms sensitivity per plane of 10.8mJy/beam at 4′ and 2.2mJy/beam at 20′′; we estimate the Stokes I to Stokes Q/U leakage to be approximately 0.2%. Here we characterise and publicly release our Stokes I, Q, U and V images in addition to the calibrated uv-data to facilitate the thorough scientific exploitation of this unique dataset. This service queries the Stokes I continuum mosaic images.
- 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://ison.clt/siap
- Title:
- ISON Optical Survey
- Short Name:
- ISON-CLT
- Date:
- 13 Mar 2019 13:07:46
- Publisher:
- ISON
- Description:
- ISON Near-Ecliptic Optical Survey
- ID:
- ivo://jvo/nobeyama
- Title:
- Nobeyama Radio Telescope FITS Archive
- Short Name:
- NRO FITS ARCHIVE
- Date:
- 14 Nov 2019 03:48:50
- Publisher:
- JVO
- Description:
- FITS data archive for Nobeyama 45m radio telescope.
- ID:
- ivo://jvo/isas/darts/halca/halca_vsop_survey_program_data
- Title:
- The VSOP (the VLBI Space Observatory Programme) 5 GHz AGN (Active Galactic Nuclei) Survey Program Analysis Data
- Short Name:
- HALCA_AGN
- Date:
- 19 Oct 2021 06:40:34
- Publisher:
- JVO
- Description:
- A significant fraction of the mission time of VSOP was to be dedicated to the VSOP Survey Programme of bright compact Active Galactic Nuclei (AGN) at 5 GHz, which was lead by ISAS. The VSOP Survey Sources are an unbiased dataset of 294 targets, of which 82% were successfully observed.
- ID:
- ivo://irsa.ipac/Spitzer/Images/MIPSGAL
- Title:
- A 24 and 70 Micron Survey of the Inner Galactic Disk with MIPS
- Short Name:
- MIPSGAL
- Date:
- 27 Oct 2022 19:00:00
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- MIPSGAL is a survey of the inner 248 square degrees of the Galactic plane at 24 and 70 microns using the MIPS instrument aboard the Spitzer Space Telescope. The survey covers Galactic latitudes of -1° < b < +1° for Galactic longitudes of l < 62° and l > 298°. Version 3.0 of the MIPSGAL data includes mosaics only at 24um, but covering the entire survey region. |b| < 1° is covered for -68° < l < 69°, and |b| < 3° is covered for -8° < l < 9°.
- ID:
- ivo://irsa.ipac/WISE/Images/AllWISE/L3a
- Title:
- AllWISE Atlas (L3a) Coadd Images
- Short Name:
- AllWISE L3a
- Date:
- 16 Mar 2017 01:00:00
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- The AllWISE program builds upon the work of the successful Wide-field Infrared Survey Explorer mission (WISE; Wright et al. 2010) by combining data from the WISE cryogenic and NEOWISE (Mainzer et al. 2011 ApJ, 731, 53) post-cryogenic survey phases to form the most comprehensive view of the full mid-infrared sky currently available. By combining the data from two complete sky coverage epochs using an advanced data processing system, AllWISE has generated new products that have enhanced photometric sensitivity and accuracy, and improved astrometric precision compared to the 2012 WISE All-Sky Data Release. Exploiting the 6 to 12 month baseline between the WISE sky coverage epochs enables AllWISE to measure source motions for the first time, and to compute improved flux variability statistics. The AllWISE Images Atlas is comprised of 18,240 4-band calibrated 1.56°x1.56° FITS images, depth-of-coverage and noise maps, and image metadata produced by coadding nearly 7.9 million Single-exposure images from all survey phases.
- ID:
- ivo://irsa.ipac/Herschel/Images/ACMC
- Title:
- Auriga-California Molecular Cloud
- Short Name:
- ACMC
- Date:
- 27 Oct 2022 19:00:00
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- The Auriga-California molecular cloud is a large region of relatively modest star formation that is part of the Gould Belt. The Herschel Space Observatory program OT1_pharvey01_3 ("The Auriga-California Molecular Cloud: A Massive Nearby Cloud With Powerful Diagnostics For Early Stages of Star Formation", PI Paul Harvey) observed a 14.5 square degree area of the cloud in five far-infrared bands.
- ID:
- ivo://irsa.ipac/Bolocam/Images/Bolocam_LH
- Title:
- Bolocam Lockman Hole Map
- Short Name:
- Bolocam_LH
- Date:
- 23 May 2023 20:55:52
- Publisher:
- NASA/IPAC Infrared Science Archive
- Description:
- A deep 1.1 mm survey using Bolocam of the Lockman Hole, producing a map and galaxy candidate list. This survey encompasses 324 square arcmin to an rms noise level (filtered for point sources) of 1.4 mJy/beam. This project is described by Laurent et al., ApJ, 2005.