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The Hubble Space Telescope Treasury Program on the Orion Nebula Cluster | | M. Robberto
; D. R. Soderblom
; E. Bergeron
; V. Kozhurina-Platais
; R. B. Makidon
; P. R. McCullough
; M. McMaster
; N. Panagia
; I. N. Reid
; Z. Levay
; L. Frattare
; N. Da Rio
; M. Andersen
; C. R. O'Dell
; K. G. Stassun
; M. Simon
; E. D. Feigelson
; J. R. Stauffer
; M. Meyer
; M. Reggiani
; J. Krist
; C. F. Manara
; M. Romaniello
; L. A. Hillenbrand
; L. Ricci
; F. Palla
; J. R. Najita
; T. T. Ananna
; G. Scandariato
; K. Smith
; | | Date: |
17 Apr 2013 | | Abstract: | The Hubble Space Telescope (HST) Treasury Program on the Orion Nebula Cluster
has used 104 orbits of HST time to image the Great Orion Nebula region with the
Advanced Camera for Surveys (ACS), the Wide-Field/Planetary Camera 2 (WFPC2)
and the Near Infrared Camera and Multi Object Spectrograph (NICMOS) instruments
in 11 filters ranging from the U-band to the H-band equivalent of HST. The
program has been intended to perform the definitive study of the stellar
component of the ONC at visible wavelengths, addressing key questions like the
cluster IMF, age spread, mass accretion, binarity and cirumstellar disk
evolution. The scanning pattern allowed to cover a contiguous field of
approximately 600 square arcminutes with both ACS and WFPC2, with a typical
exposure time of approximately 11 minutes per ACS filter, corresponding to a
point source depth AB(F435W) = 25.8 and AB(F775W)=25.2 with 0.2 magnitudes of
photometric error. We describe the observations, data reduction and data
products, including images, source catalogs and tools for quick look preview.
In particular, we provide ACS photometry for 3399 stars, most of them detected
at multiple epochs, WFPC2 photometry for 1643 stars, 1021 of them detected in
the U-band, and NICMOS JH photometry for 2116 stars. We summarize the early
science results that have been presented in a number of papers. The final set
of images and the photometric catalogs are publicly available through the
archive as High Level Science Products at the STScI Multimission Archive hosted
by the Space Telescope Science Institute. | | Source: | arXiv, 1304.4866 | | Services: | Forum | Review | PDF | Favorites | |
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