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17231. vsini of Orion low-mass stars
ID:
ivo://CDS.VizieR/J/ApJ/601/979
Title:
vsini of Orion low-mass stars
Short Name:
J/ApJ/601/979
Date:
21 Oct 2021
Publisher:
CDS
Description:
Projected rotational velocities (vsini) have been measured for a sample of 145 stars with masses between 0.4 and greater than 10M_{sun}_ (median mass 2.1M_{sun}_) located in the Orion star-forming complex. These measurements have been supplemented with data from the literature for Orion stars with masses as low as 0.1M_{sun}_.
17232. VSOP 5 GHz AGN Survey
ID:
ivo://CDS.VizieR/J/PASJ/52/997
Title:
VSOP 5 GHz AGN Survey
Short Name:
J/PASJ/52/997
Date:
21 Oct 2021
Publisher:
CDS
Description:
The VSOP mission is a Japanese-led project to image radio sources with sub-milliarcsec resolution by correlating the signal from the orbiting 8-m telescope, HALCA, with a global array of telescopes. Twenty- five percent of the scientific time of this mission is devoted to a survey of 402 bright, small-diameter extra-galactic radio sources at 5-GHz. The major goals of the VSOP Survey are statistical in nature: to determine the brightness temperature and approximate structure; to provide a source list for use with future space VLBI missions; and to compare radio properties with other data throughout the EM spectrum. This paper describes: the compilation of a complete list of radio sources associated with active galactic nuclei (AGN); the selection of the subsample of sources to be observed with VSOP; the extensive ground resources used for the Survey; the status of the observations as of 2000 July; the data-analysis methods; and several examples of results from the VSOP Survey. More detailed results from the full sample will be given in future papers.
17233. VSOP 5 GHz AGN Survey. III
ID:
ivo://CDS.VizieR/J/ApJS/155/33
Title:
VSOP 5 GHz AGN Survey. III
Short Name:
J/ApJS/155/33
Date:
21 Oct 2021
Publisher:
CDS
Description:
The VLBI Space Observatory Programme (VSOP) mission is a Japanese-led project to study radio sources with sub-milliarcsec resolution using an orbiting 8m telescope, HALCA, along with global arrays of Earth-based telescopes. Approximately 25% of the observing time is devoted to a survey of compact active galactic nuclei (AGNs) that are stronger than 1Jy at 5GHz - the VSOP AGN Survey. This paper, the third in the series, presents the results from the analysis of the first 102 Survey sources.
17234. VSOP 5GHz AGN Survey. IV
ID:
ivo://CDS.VizieR/J/ApJ/616/110
Title:
VSOP 5GHz AGN Survey. IV
Short Name:
J/ApJ/616/110
Date:
21 Oct 2021
Publisher:
CDS
Description:
The VLBI Space Observatory Programme (VSOP) mission is a Japanese-led project to study radio sources with submilliarcsecond angular resolution, using an orbiting 8m telescope on board the satellite HALCA with a global Earth-based array of telescopes. A major program is the 5GHz VSOP Survey Program, which we supplement here with Very Long Baseline Array observations to produce a complete and flux density-limited sample. Using statistical methods of analysis of the observed visibility amplitude versus projected (u, v) spacing, we have determined the angular size and brightness temperature distribution of bright radio emission from active galactic nuclei.
17235. VSOP 5GHz AGN survey V.
ID:
ivo://CDS.VizieR/J/ApJS/175/314
Title:
VSOP 5GHz AGN survey V.
Short Name:
J/ApJS/175/314
Date:
21 Oct 2021
Publisher:
CDS
Description:
In 1997 February, the Japanese radio astronomy satellite HALCA was launched to provide the space-bourne element for the VLBI Space Observatory Program (VSOP) mission. Approximately 25% of the mission time was dedicated to the VSOP survey of bright compact active galactic nuclei (AGNs) at 5GHz. This paper, the fifth in the series, presents images and models for the remaining 140 sources not included in the third paper in the series, which contained 102 sources. For most sources, the plots of the (u,v) coverage, the visibility amplitude versus (u,v) distance, and the high-resolution image are presented. Model fit parameters to the major radio components are determined, and the brightness temperature of the core component for each source is calculated. The brightness temperature distributions for all of the sources in the VSOP AGN survey are discussed.
17236. VSOP 5 GHz continuum survey
ID:
ivo://CDS.VizieR/J/ApJS/131/95
Title:
VSOP 5 GHz continuum survey
Short Name:
J/ApJS/131/95
Date:
21 Oct 2021
Publisher:
CDS
Description:
We have imaged with milliarcsecond resolution at 5 GHz 374 strong flat-spectrum radio sources north of declination -44{deg} using the VLBA in 1996 June. The source sample was compiled from the source list for the VLBI Space Observatory Programme (VSOP) Survey Program. About 250 of the sources observed with the VLBA had correlated flux densities >=0.3 Jy on the longest VLBA baseline and these sources are currently being observed with VSOP at 5 GHz. This paper presents the results from the VLBA prelaunch observations: the correlated flux density dependence with u-v distance; the contour display of the images; the model fit parameters for each radio component; and improved positions for 62 sources. Comparisons and extensive cross-referencing with other major VLBI surveys are also given.
17237. VST Atlas ConeSearch
ID:
ivo://archive.stsci.edu/catalogs/vstatlas
Title:
VST Atlas ConeSearch
Short Name:
VSTAtlas CS
Date:
23 Jul 2020 20:37:54
Publisher:
Space Telescope Science Institute Archive
Description:
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.
17238. VST ATLAS white dwarf candidates cat.
ID:
ivo://CDS.VizieR/J/MNRAS/469/621
Title:
VST ATLAS white dwarf candidates cat.
Short Name:
J/MNRAS/469/621
Date:
21 Oct 2021
Publisher:
CDS
Description:
The Sloan Digital Sky Survey (SDSS) has created a knowledge gap between the Northern and the Southern hemispheres, which is very marked for white dwarfs: Only ~15 per cent of the known white dwarfs are south of the equator. Here, we make use of the VLT Survey Telescope (VST) ATLAS survey, one of the first surveys obtaining deep, optical, multiband photometry over a large area of the southern skies, to remedy this situation. Applying the colour and proper-motion selection developed in our previous work on SDSS to the most recent internal data release (2016 April 25) of VST ATLAS, we created a catalogue of ~4200 moderately bright (g<=19), high-confidence southern white dwarf candidates, which can be followed up individually with both the large array of southern telescopes or in bulk with ESO's forthcoming multi-object spectrograph 4MOST.
17239. VST Kilo-Degree Infrared Galaxy (VIKING) Survey ConeSearch
ID:
ivo://archive.stsci.edu/catalogs/viking
Title:
VST Kilo-Degree Infrared Galaxy (VIKING) Survey ConeSearch
Short Name:
VIKING CS
Date:
23 Jul 2020 20:37:13
Publisher:
Space Telescope Science Institute Archive
Description:
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) Survey All available missions are listed at http://archive.stsci.edu/vo/mast_services.html.
17240. VST Kilo-Degree Survey ConeSearch
ID:
ivo://archive.stsci.edu/catalogs/kids
Title:
VST Kilo-Degree Survey ConeSearch
Short Name:
KIDS CS
Date:
23 Jul 2020 20:33:38
Publisher:
Space Telescope Science Institute Archive
Description:
All MAST catalog holdings are available via Cone Search endpoints. This service provides access to the MAST copy of the VST Kilo-degree survey All available missions are listed at http://archive.stsci.edu/vo/mast_services.html.

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