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Skiff Spectral Catalog
This service provides access to a modified version of the Skiff Spectral catalog.The full catalog is available from VizieR. The table includes the standardspectral classifications (with spaces removed) and their encoded values as described in the IVOA note titled "An Encoding system to Represent Stellar Spectral Classes in Archival Databases and Catalogs". The table contains roughly 450,000 targets. Note Skiff does not list novae or supernovae.
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Spitzer Atlas of Stellar Spectra Catalog
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The Spitzer Atlas of Stellar Spectra presents IRS Short-Low and Long-Low spectra of 159 stars selected to provide a complete sampling of the HR diagram. The SASS Catalog presents the spectral type, luminosity type, color, metallicity, and photometry for each star in the Atlas.
VST Kilo-Degree Infrared Galaxy (VIKING) Survey ConeSearch
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All MAST catalog holdings are available via Cone Search endpoints. This service provides access to the MAST copy of the VST Kilo-degree Infrared Galaxy (VIKING) SurveyAll available missions are listed at http://archive.stsci.edu/vo/mast_services.html.
Extended Chandra Deep Field South 250-ks Improved Point Source Catalog
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This table contains the improved point-source catalog for the 250-ks Extended Chandra Deep Field-South (E-CDF-S) Survey, implementing a number of recent improvements in Chandra source-cataloguing methodology. For the E-CDF-S, the main catalog (entries from which are indicated with parameter values of source_sample = "Main" in this HEASARC representation) contains 1003 X-ray sources detected with wavdetect at a false-positive probability threshold of 10-5 that also satisfy a binomial-probability source-selection criterion of P < 0.002. Such an approach maximizes the number of reliable sources detected: a total of 275 main-catalog sources are new compared to the Lehmer et al. (2005, ApJS, 161, 21) E-CDF-S main catalog. The authors also provide an E-CDF-S supplementary catalog that consists of 56 sources (entries from which are indicated with parameter values of source_sample = "Supp" in this HEASARC representation) detected at the same wavdetect threshold and having P of 0.002-0.1 and Ks <= 22.3 mag counterparts. For all 1059 E-CDF-S sources, including the 318 newly detected ones (these being generally fainter and more obscured), the authors determine X-ray source positions utilizing centroid and matched-filter techniques; they also provide multi-wavelength identifications, apparent magnitudes of counterparts, spectroscopic and/or photometric redshifts, basic source classifications, and estimates of observed active galactic nucleus and galaxy source densities around respective field centers. Simulations show that the E-CDF-S main catalog is highly reliable and reasonably complete. Background and sensitivity analyses indicate that the on-axis mean flux limits reached represent a factor of ~1.5-2.0 improvement over the previous E-CDF-S limit. The 250-ks E-CDF-S is composed of four distinct and contiguous ~ 250-ks Chandra pointings that flank the CDF-S proper, consisting of a total of nine separate observations taken between 2004 February 29 and November 20 (see Lehmer et al., 2005, ApJS, 161, 21 for more details). This table was created by the HEASARC in August 2016 based on CDS Catalog J/ApJS/224/15 files table9.dat (the main source catalog) and table12.dat (the supplementary source catalog). This is a service provided by NASA HEASARC .
MAST Spectral Classes of Like Stars
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This table was created by cross correlating entries from the MAST "Table of Representative Spectra" with targets listed in the Skiff Spectral catalog, the Sky2000 catalog, and/or provided by Simbad. Spectra from IUE, STIS, FUSE, EUVE, HUT, GHRS, FOS, WUPPE, BEFS, and TUES are included. Most correlations were based on cross-matching target names and coordinates, usually with a 5" tolerance, but a few matches may be wrong. The table lists roughly 28,000 observations including novae and supernovae of which more than 22,000 have assigned spectral types.
UVCet-typeFlareStars&RelatedObjectsCatalog
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IRAS Faint Source Catalog, Version 2.0
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The Faint Source Survey (FSS) is the definitive Infrared Astronomical Satellite (IRAS) data set for faint point sources. The FSS was produced by point-source filtering the individual detector data streams and then coadding those data streams using a trimmed-average algorithm. The resulting images, or plates, give the best estimate from the IRAS survey data of the point source flux density at every surveyed point of the sky. The Faint Source Catalog (FSC) is a compilation of the sources extracted from the FSS plates that have met reasonable reliability requirements. Averaged over the whole catalog, the FSC is at least 98.5% reliable at 12 and 25 microns, and ~94% at 60 microns. For comparison, the IRAS Point Source Catalog (PSC) is >99.997% reliable, but the sensitivity of the FSC exceeds that of the PSC by about a factor of 2.5. This increase in sensitivity results from the co-adding of the three separate hours-confirming (HCON) passes over the sky which were used for confirmation and not added together for the Point Source Catalog. The FSC also contains 99,973 infrared sources which are not in the PSC. The FSC contains data for 173,044 point sources in unconfused regions with flux densities typically above 0.2 Jy at 12, 25, and 60 microns, and above 1.0 Jy at 100 microns. The FSS plates are somewhat more sensitive but less reliable than the FSC; typically, only sources with SNR > 5 - 6 in the plates are contained in the FSC. The data products, the processing methods used to produce them, results of an analysis of these products, and cautionary notes are given in the Explanatory Supplement to the IRAS Faint Source Survey. This database table contains the IRAS Faint Source Catalog (FSC) (Version 2.0, released in September 1990) non-associations data. The associations data for the IRAS FSC is contained in the file https://cdsarc.cds.unistra.fr/ftp/cats/II/156A/assoc.dat.gz The FSC is limited in galactic latitude to the unconfused regions of sky in which the absolute value of BII is greater than or equal to 10 degrees at 12 and 25 microns and greater than or equal to 20 degrees at 60 microns. Because of the presence of the infrared "cirrus" at 100 microns, the FSC does not contain sources detected ONLY at 100 microns. Sources with a 100 micron detection were included in the catalog if they were bandmerged with high reliability detections at other spectral bands. For the faintest sources, the reliability exceeds 90% at 12 and 25 microns, and 80% at 60 microns. The HEASARC recreated this database table in August 2005, based on the CDS table, in an effort to modernize its parameter names and documentation, as well as to add Galactic coordinates. This is a service provided by NASA HEASARC .
Markarian Galaxies Optical Database
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A database for the entire Markarian (First Byurakan Spectral Sky Survey or FBS) Catalog is presented that combines extensive new measurements of their optical parameters with a literature and database search. The measurements were made using images extracted from the STScI Digitized Sky Survey (DSS) of F_pg (red) and J_pg (blue) band photographic sky survey plates obtained by the Palomar and UK Schmidt telescopes. The authors provide accurate coordinates, morphological type, spectral and activity classes, red and blue apparent magnitudes, apparent diameters, axial ratios, and position angles, as well as number counts of neighboring objects in a circle of radius 50 kpc. Special attention was paid to the individual descriptions of the galaxies in the original Markarian lists, which clarified many cases of misidentifications of the objects, particularly among interacting systems, larger galaxies with knots of star formation, possible stars, and cases of stars projected on galaxies. The total number of individual Markarian objects in the database is now 1544. The authors also have included redshifts which are now available for 1524 of the objectswith UV-excess radiation, as well as Galactic color excess E(B-V) values and their 2MASS or DENIS infrared magnitudes. The table also includes extensive notes that summarize information about the membership of Markarian galaxies in different systems of galaxies and about new and revised activity classes and redshifts. The new optical information on Markarian galaxies was obtained from images extracted from the STScI Digitized Sky Survey (DSS) of F_pg (red) and J_pg (blue) band photographic sky survey plates obtained by the Palomar and UK Schmidt telescopes. This table was created by the HEASARC in November 2009 based on the electronic version of the optical database of Markarian galaxies which was obtained from the CDS (their catalog J/ApJS/170/33 file table1.dat). This is a service provided by NASA HEASARC .
VST Atlas ConeSearch
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All MAST catalog holdings are available via Cone Search endpoints. This service provides access to the MAST copy of the VST Atlas:This survey is targeting 4500 square degrees of the Southern sky in five filters (U, V, R, I and Z) to depths comparable to those of the SDSS. This survey is also complemented by near-infrared data from the VISTA Hemisphere Survey. The primary aim is to examine ‘baryon wiggles’ (small-amplitude oscillations observed in the power spectrum of galaxies) by looking at luminous red galaxies in order to determine the dark energy equation of state. Along with this, the VST ATLAS will provide an imaging base for spectroscopic surveys by the VLT.All available missions are listed at http://archive.stsci.edu/vo/mast_services.html.