VizieR Online Data Catalog: Orphan stream high-resolution spectroscopic study (Casey+, 2014)
Abstract
High-resolution spectra for five Orphan stream candidates and seven well-studied standard stars have been obtained with the Magellan Inamori Kyocera Echelle spectrograph (Bernstein et al. 2003SPIE.4841.1694B) on the Magellan Clay telescope. These objects were observed in 2011 March using a 1" wide slit in mean seeing of 0.9". This slit configuration provides continuous spectral coverage from 333 nm to 915 nm, with a spectral resolution of R=25000 in the blue arm and R=28000 in the red arm. A minimum of 10 exposures of each calibration type (biases, flat fields, and diffuse flats) were observed in the afternoon of each day, with additional flat-field and Th-Ar arc lamp exposures performed throughout the night to ensure an accurate wavelength calibration.
(3 data files).- Publication:
-
VizieR Online Data Catalog
- Pub Date:
- June 2017
- DOI:
- 10.26093/cds/vizier.17840019
- Bibcode:
- 2017yCat..17840019C
- Keywords:
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- Milky Way;
- Stars: halo;
- Equivalent widths;
- Abundances