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J/A+A/587/A153 VISION I. VISTA Orion A Survey (Meingast+, 2016)
The following files can be converted to FITS (extension .fit or fit.gz)
science.dat control.dat yso.dat galaxy.dat
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=J/A+A/587/A153
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-r--r--r-- 1 cats archive 7932 Nov 14 2016 ReadMe
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-r--r--r-- 1 cats archive 4231026 Nov 10 2016 control.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 320 Nov 10 2016 galaxy.dat [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 36886544 Nov 10 2016 science.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 1560 Nov 10 2016 yso.dat [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe :J/A+A/587/A153 VISION I. VISTA Orion A Survey (Meingast+, 2016)
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VISION - Vienna survey in Orion. I. VISTA Orion A Survey.
Meingast S., Alves J., Mardones D., Teixeira P.S., Lombardi M.,
Grosschedl J., Ascenso J., Bouy H., Forbrich J., Goodman A., Hacar A.,
Hasenberger B., Kainulainen J., Kubiak K., Lada C., Lada E., Moitinho A.,
Petr-gotzens M., Rodrigues L., Roman-zuniga C.G.
<Astron. Astrophys., 587, A153 (2016)>
=2016A&A...587A.153M (SIMBAD/NED BibCode)
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ADC_Keywords: Infrared sources ; Photometry, infrared ; Surveys
Keywords: techniques: image processing - methods: data analysis -
stars: formation - stars: pre-main sequence
Abstract:
Orion A hosts the nearest massive star factory, thus offering a unique
opportunity to resolve the processes connected with the formation of
both low- and high-mass stars. Here we present the most detailed and
sensitive near-infrared (NIR) observations of the entire molecular
cloud to date. With the unique combination of high image quality,
survey coverage, and sensitivity, our NIR survey of Orion A aims at
establishing a solid empirical foundation for further studies of this
important cloud. In this first paper we present the observations, data
reduction, and source catalog generation. To demonstrate the data
quality, we present a first application of our catalog to estimate the
number of stars currently forming inside Orion A and to verify the
existence of a more evolved young foreground population. We used the
European Southern Observatory's (ESO) Visible and Infrared Survey
Telescope for Astronomy (VISTA) to survey the entire Orion A molecular
cloud in the NIR J, H, and K_S_ bands, covering a total of
18.3deg^2^. We implemented all data reduction recipes independently
of the ESO pipeline. Estimates of the young populations toward Orion A
are derived via the K_S_-band luminosity function. Our catalog (799995
sources) increases the source counts compared to the Two Micron All
Sky Survey by about an order of magnitude. The 90% completeness limits
are 20.4, 19.9, and 19.0mag in J, H, and K_S_, respectively. The
reduced images have 20% better resolution on average compared to
pipeline products. We find between 2300 and 3000 embedded objects in
Orion A and confirm that there is an extended foreground population
above the Galactic field, in agreement with previous work. The Orion A
VISTA catalog represents the most detailed NIR view of the nearest
massive star-forming region and provides a fundamental basis for
future studies of star formation processes toward Orion.
Description:
VISION is a near-infrared survey of the entire Orion A molecular
cloud, the nearest massive star forming region. It was conducted with
the ESO VISTA telescope at Paranal and covers about 18 deg2 of the
high column-density areas of the molecular cloud in the J, H, and Ks
bands. The source catalog contains about 800000 sources. In addition
an extinction-free control field was observed at similar galactic
latitude. The source catalog for the control field contains about
90000 sources.
This data set also includes the identification of YSO and galaxy
cluster candidates as presented in the survey paper.
Image data (HiPS resource) are available at
http://alasky.u-strasbg.fr/VISTA/VISTA-Orion-A-Colored/