We present candidate members of the Pal 5 , GD-1 , Cetus Polar , and Orphan tidal stellar streams found in LAMOST DR3 , SDSS DR9 and APOGEE catalogs .
In LAMOST DR3 , we find 20 , 4 , 24 high confidence candidates of tidal streams GD-1 , Cetus Polar and Orphan respectively .
We also list from the SDSS DR9 spectroscopic catalog 59 , 118 , 10 high confidence candidates of tidal streams Cetus Polar , Orphan and Pal 5 , respectively .
Furthermore , we find 7 high confidence candidates of the Pal 5 tidal stream in APOGEE data .
Compared with SDSS , the new candidates from LAMOST DR3 are brighter , so that together , more of the color-magnitude diagram , including the giant branch can be explored .
Analysis of SDSS data shows that there are 3 metallicity peaks of the Orphan stream and also shows some spatial separation .
LAMOST data confirms multiple metallicities in this stream .
The metallicity , given by the higher resolution APOGEE instrument , of the Pal 5 tidal stream is [ Fe / H ] \sim - 1.2 , higher than that given earlier by SDSS spectra .
Many previously unidentified stream members are tabulated here for the first time , along with existing members , allowing future researchers to further constrain the orbits of these objects as they move within the Galaxy ’ s dark matter potential .