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Start Over Publisher NASA/IPAC Infrared Science Archive
511. Tycho-Gaia Astrometric Solution (TGAS) Source Table
ID:
ivo://irsa.ipac/Gaia/TGAS
Title:
Tycho-Gaia Astrometric Solution (TGAS) Source Table
Short Name:
Gaia-TGAS
Date:
01 Oct 2018 20:27:21
Publisher:
NASA/IPAC Infrared Science Archive
Description:
This table is a subset of gaia_source comprising those stars in the Hipparcos and Tycho-2 Catalogues for which a full 5-parameter astrometric solution has been possible in Gaia Data Release 1. This is possible because the early Hipparcos epoch positions break some degeneracies due to the limited Gaia time coverage. This table contains a substantial fraction of the around 2.5 million stars in the Hipparcos and Tycho-2 catalogue. Many stars have been excluded due to several reasons, such as saturation, cross-match errors or bad astrometric solution.
512. United States Naval Observatory B1.0 Catalog
ID:
ivo://irsa.ipac/USNO/Catalog/USNO-B1
Title:
United States Naval Observatory B1.0 Catalog
Short Name:
USNO-B1
Date:
01 Oct 2018 20:27:21
Publisher:
NASA/IPAC Infrared Science Archive
Description:
This all-sky catalog, described in Monet et al. (2003), consists of positions, proper motions, magnitudes, and other measured quantities for 1,045,175,762 objects. The data were derived from digitizing scans of almost 7,500 photographic plates taken from various sky surveys during the interval from 1949 to 2002. The originating plate material includes five complete coverages of the northern sky and four of the southern sky. To be included in the catalog, an object must have been detected on two different surveys because isolated, single-survey detections are unreliable. For the earlier USNO-A catalog (which was essentially a two-color, one-epoch catalog), this meant that the object must have had detectable fluxes on both the red and blue plates, and this led to the exclusion of many faint objects with non-neutral colors. Also, the larger epoch difference in the southern survey coverage meant that objects with larger proper motions tended to be excluded. USNO-B1.0 attempts to fix both of these problems. An object detected in the same band at two epochs will be included in USNO-B1.0, as will objects that have significant proper motions, although it is still the case that objects with large motions and extreme colors may be omitted. The selection algorithm requires that spatially coincident detections must be made on any two of the surveys for an object to be classified as real and be included in the catalog. The catalog is expected to be complete down to V=21. Estimated positional accuracies are 0.2 arcsec, photographic magnitude accuracies are 0.3 mag, and the accuracy for distinguishing stars from non-stellar objects is 85%.
513. unWISE Catalog
ID:
ivo://irsa.ipac/WISE/Catalog/unWISE
Title:
unWISE Catalog
Short Name:
unWISECat
Date:
02 Dec 2020 19:45:36
Publisher:
NASA/IPAC Infrared Science Archive
Description:
The unWISE Catalog contains the positions and fluxes of roughly two billion objects observed by the Wide-field Infrared Survey Explorer (WISE) over the full sky. The unWISE Catalog has two advantages over the existing WISE catalog (AllWISE): first, it is based on significantly deeper imaging, and second, it features improved modeling of crowded regions. The deeper imaging used in the unWISE Catalog comes from the coaddition of all publicly available 3-5 micron WISE imaging, including that from the ongoing NEOWISE-Reactivation mission, thereby increasing the total exposure time by a factor of 5 relative to AllWISE. At these depths, even at high Galactic latitudes many sources are blended with their neighbors; accordingly, the unWISE analysis simultaneously fits thousands of sources to obtain accurate photometry. The unWISE catalog detects sources at 5 sigma roughly 0.7 magnitudes fainter than the AllWISE catalog and more accurately models millions of faint sources in the Galactic plane, enabling a wealth of Galactic and extragalactic science. In particular, relative to AllWISE, unWISE doubles the number of galaxies detected between redshifts 0 and 1 and triples the number between redshifts 1 and 2, cataloging more than half a billion galaxies over the whole sky.
514. unWISE Images
ID:
ivo://irsa.ipac/WISE/Images/unWISE
Title:
unWISE Images
Short Name:
unWISE
Date:
14 Nov 2023 21:09:17
Publisher:
NASA/IPAC Infrared Science Archive
Description:
unWISE is a reprocessing of WISE data to improved depth and spatial resolution.
515. Vela-Carina Archive
ID:
ivo://irsa.ipac/Spitzer/Catalog/GLIMPSE/VelaCarArchive
Title:
Vela-Carina Archive
Short Name:
VelaCarArchive
Date:
01 Oct 2018 20:27:17
Publisher:
NASA/IPAC Infrared Science Archive
Description:
Vela-Carina is the fourth in a series of large area projects to map selected regions of the Galactic plane using the Spitzer Space Telescope Infrared Array Camera (IRAC). The Vela-Carina project (PID=40791) (Majewski et al. 2007, Zasowski et al. 2009) extended GLIMPSE-style coverage (two 1.2 second integrations at each position) to Galactic longitudes 255◦< l < 295◦ covering 86 square degrees of the Carina and Vela regions of the Galactic plane. The Vela-Carina Archive (VelaCarA or the “Archive”), consists of point sources with a signal- to-noise > 5 in at least one band and less stringent selection critera than the Catalog. The photometric uncertainty is typically < 0.3 mag. The information provided is in the same format as the Catalog. The Catalog is a subset of the Archive, but note that the entries for a particular source might not be the same due to additional nulling of magnitudes in the Catalog because of the more stringent requirements.
516. Vela-Carina Catalog
ID:
ivo://irsa.ipac/Spitzer/Catalog/GLIMPSE/VelaCarCatalog
Title:
Vela-Carina Catalog
Short Name:
VelaCarCatalog
Date:
01 Oct 2018 20:27:17
Publisher:
NASA/IPAC Infrared Science Archive
Description:
Vela-Carina is the fourth in a series of large area projects to map selected regions of the Galactic plane using the Spitzer Space Telescope Infrared Array Camera (IRAC). The Vela-Carina project (PID=40791) (Majewski et al. 2007, Zasowski et al. 2009) extended GLIMPSE-style coverage (two 1.2 second integrations at each position) to Galactic longitudes 255◦< l < 295◦ covering 86 square degrees of the Carina and Vela regions of the Galactic plane. The Vela-Carina Catalog (VelaCarC, or the “Catalog”), consists of the highest reliability point sources. To be in the Catalog, sources must be detected at least twice in one IRAC band and at least once in an adjacent band, which we call a “2+1” criterion, where the “1” can include the 2MASS Ks band. This yields a Vela-Carina Catalog with a reliability greater than 99.5%; that is, only five sources in a thousand are expected to be spurious. For each IRAC band the Catalog provides fluxes (with uncertainties), positions (with uncer- tainties), the areal density of local point sources, the local sky brightness, and a flag that provides information on source quality and known anomalies present in the data.
517. Very Nearby Galaxy Survey
ID:
ivo://irsa.ipac/Herschel/Images/VNGS
Title:
Very Nearby Galaxy Survey
Short Name:
VNGS
Date:
27 Oct 2022 19:00:00
Publisher:
NASA/IPAC Infrared Science Archive
Description:
The Very Nearby Galaxy Survey (VNGS) is a Herschel Key Program (KPGT_cwilso01_1) to measure the emission spectrum from dust as well as important cooling lines from the gaseous interstellar medium in a sample of 13 very nearby galaxies (M51, M81, NGC2403, NGC891, M83, M82, Arp220, NGC4038/39, NGC1068, NGC4151, CenA, NGC4125, and NGC205). These galaxies have been chosen to probe as wide a region in galaxy parameter space as possible while maximizing the achievable spatial resolution and are already well-studied from X-ray and optical through to radio wavelengths. The far-infrared and submillimeter wavelengths probed by Herschel are absolutely crucial for understanding the physical processes and properties of the interstellar medium, the interplay between star formation and the interstellar medium in galaxies, and how they may depend on the wider galaxian environment.
518. WISE All-Sky Atlas Metadata Table
ID:
ivo://irsa.ipac/WISE/Catalog/All-Sky/Metadata
Title:
WISE All-Sky Atlas Metadata Table
Short Name:
WISE All-Sky MT
Date:
01 Oct 2018 20:27:16
Publisher:
NASA/IPAC Infrared Science Archive
Description:
NASA's Wide-field Infrared Survey Explorer (WISE; Wright et al. 2010) mapped the sky at 3.4, 4.6, 12, and 22 μm (W1, W2, W3, W4) in 2010 with an angular resolution of 6.1", 6.4", 6.5", & 12.0" in the four bands. WISE achieved 5σ point source sensitivities better than 0.08, 0.11, 1 and 6 mJy in unconfused regions on the ecliptic in the four bands. Sensitivity improves toward the ecliptic poles due to denser coverage and lower zodiacal background. The All-Sky Release includes all data taken during the WISE full cryogenic mission phase, 7 January 2010 to 6 August 2010, that were processed with improved calibrations and reduction algorithms. Release data products include an Atlas of 18,240 match-filtered, calibrated and coadded image sets, a Source Catalog containing positional and photometric information for over 563 million objects detected on the WISE images, and an Explanatory Supplement that is a guide to the format, content, characteristics and cautionary notes for the WISE All-Sky Release products. The WISE All-Sky Data Release Single-exposure Source Working Database contains positions and brightness information, uncertainties, time of observation and assorted quality flags for 9,479,433,101 "sources" detected on the individual WISE 7.7s (W1 and W2) and 8.8s (W3 and W4) Single-exposure images. Because WISE scanned every point on the sky multiple times, the Single-exposure Database contains multiple, independent measurements of objects on the sky. Entries in the Single-exposure Source Table include detections of real astrophysical objects, as well as spurious detections of low SNR noise excursions, transient events such as hot pixels, charged particle strikes and satellite streaks, and image artifacts light from bright sources including the moon. Many of the unreliable detections are flagged in the Single-exposure Table, but they have not been filtered out as they were for the Source Catalog. Therefore, the Table must be used with caution. Users are strongly encouraged to read the Cautionary Notes before using the Table.
519. WISE All-Sky 4-band Atlas Coadded Images
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.
520. WISE All-Sky 4-band Single-Exposure Images
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.