Sloan Digital Sky Survey Photometry and Spectroscopy of the Taurus Molecular Cloud

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

As part of testing and commissioning, The Sloan Digital Sky Survey (SDSS) obtained imaging and spectroscopic data of parts of the sky outside its high-latitude footprint, including star-forming regions in Orion, Taurus and Cygnus. The Taurus data consist of a pair of short imaging stripes covering some 48 square degrees with about 10 square degrees of overlap, and 6400 spectra, mostly of reddened, low mass and pre-main-sequence stars. These data are being used for several studies of star formation in the Taurus Dark Cloud, including: searches for new T Tau and Herbig Ae/Be stars: measurements of the extinction in eight bands (together with 2MASS); a survey of HH objects and YSOs across the face of the cloud; the measurement of the distribution of diffuse ionized gas; and comparison with Spitzer surveys of pre-main-sequence objects. The imaging data have photometry accurate to 2% in the SDSS u and z filters, and better than 1% in the g, r, and i filters, with positions accurate to 40 mas. The spectra have a resolution of about 2000 and cover 3800 to 9200 Angstroms. The data are fully reduced and calibrated, openly available at http://photo.astro.princeton.edu, and are described by Finkbeiner et al. (AJ 128, 2577, 2004).
Based on data from the Sloan Digital Sky Survey (www.sdss.org). This research is supported by NASA via grant 1264472 to Princeton University.

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