Digitized First Byurakan Survey (DFBS) Spectra Query Service
Short Name:
DFBS SSAP
Date:
24 Aug 2020 16:45:07
Publisher:
The staff at the ArVO Data Center
Description:
The First Byurakan Survey (FBS) is the largest and the first systematic
objective prism survey of the extragalactic sky. It covers 17,000 sq.deg.
in the Northern sky together with a high galactic latitudes region in the
Southern sky. The FBS has been carried out by B.E. Markarian, V.A.
Lipovetski and J.A. Stepanian in 1965-1980 with the Byurakan Observatory
102/132/213 cm (40"/52"/84") Schmidt telescope using 1.5 deg. prism. Each
FBS plate contains low-dispersion spectra of some 15,000-20,000 objects;
the whole survey consists of about 20,000,000 objects.
The Online Digitized Sky Surveys (DSS1 & 2) server at the ESO/ST-ECF Archive provides access to the CD-ROM set produced by the Space Telescope Science Institute through its Guide Star Survey group. The images of these surveys are based on photographic data obtained using the Oschin Schmidt Telescope on Palomar Mountain and the UK Schmidt Telescope. The plates were processed into the present compressed digital form with the permission of these institutions. The photographic plates were scanned to a pixel scale of about 1.7 arcseconds per pixel for the POSS, SERC, and Palomar Quick-V surveys, and to about 1.0 arcseconds per pixel for the POSS-II surveys. Images of any part of the sky may be extracted from the DSS, in either FITS or GIF format.
Roger et al. (1999) presented a map of the 22 MHz radio emission between declinations -28° and +80°,
covering ~73% of the sky, derived from observations with the 22 MHz radiotelescope of the
Dominion Radio Astrophysical Observatory (DRAO).
The resolution of the telescope (EW x NS) is 1.2° x 1.7° secant(zenith angle).
Roger et al. emphasize that the main value of the data lies in the representation of structure
larger than the beam.
The strongest point sources (Cas A, Cyg A, Tau A and Vir A) have been removed from the map.
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The Centre d'Analyse de Données Etendues group used the data to form an all-sky HEALPix format map
following the method described in Appendix A of Paradis et al. 2012, A&A, 543, 103, ADS.
Their HEALPix map is mirrored here.
The map is in units of K brightness temperature.
Map pixels are set to a sentinel value of -32768.0 for unobserved regions and
for regions affected by sidelobes around Cyg A, Tau A, and Vir A. Provenance: DRAO, MPI for Radio Astronomie. This is a service of NASA HEASARC.
The DUst around NEarby Stars (DUNES, Eiroa et al. 2013) Herschel Open Time Key Program (KPOT_ceiroa_1) is a survey of 133 stars in 130 fields with the Herschel/PACS photometer. All target stars were observed with the PACS 100 and 160 micron filters. A subset of stars were additionally observed with the PACS 70 micron filter and the SPIRE 250, 350 and 500 micron filters.
DUSTiNGS consists of a sample of 50 dwarf galaxies within 1.5 Mpc, which have been mapped with IRAC channels 1 and 2 (3.6 and 4.5 microns). The sample consists of 37 dwarf spheroidal, 8 dwarf irregular, and 5 transition-type galaxies.
The DUSTiNGS data release includes images and source catalogs based on uniform Spitzer 3.6 and 4.5 micron observations.
The Effelsberg-Bonn HI Survey (EBHIS) is a 21-cm survey performed with the
100-m telescope at Effelsberg. It covers the whole northern sky out to a
redshift of z ~ 0.07 and comprises HI line emission from the Milky Way and the
Local Volume. This dataset is the atomic neutral hydrogen (HI) column density
map derived from the Milky-Way part of EBHIS (|Vlsr| < 600 km/s). Provenance: Argelander-Institut für Astronomie (AIfA) and Max-Planck-Institut
für Radioastronomie (MPIfR); data provided by B. Winkel. This is a service of NASA HEASARC.
The FPCSFITS database is a listing of the Focal Plane Crystal Spectrometer photon event data. It was created in October 1992 and contains one entry for each of the 436 FPCS FITS files. This is a service provided by NASA HEASARC .
The HRIIMAGE database table contains information from the High Resolution Imager aboard HEAO 2, the Einstein Observatory. Einstein incorporated a high-resolution X-ray telescope and a focal plane assembly capable of positioning at its focus one of four instruments: a high-resolution imaging detector (HRI), a broader-field imaging proportional counter (HRI), a solid state spectrometer (SSS), and a Bragg crystal spectrometer (FPCS). Einstein (HEAO 2) was launched on November 13, 1978, and operated successfully until April 1981. One duplicate entry was removed from the HEASARC implementation of this catalog in June 2019. This is a service provided by NASA HEASARC .