SIMBAD references

2015ApJ...812L..26G - Astrophys. J., 812, L26 (2015/October-3)

An orphan no longer? detection of the southern orphan stream and a candidate progenitor.

GRILLMAIR C.J., HETHERINGTON L., CARLBERG R.G. and WILLMAN B.

Abstract (from CDS):

Using a shallow, two-color survey carried out with the Dark Energy Camera, we detect the southern, possibly trailing arm of the Orphan Stream. The stream is reliably detected to a decl. of -38°, bringing the total known length of the Orphan Stream to 108°. We find a slight offset or ''S'' shape in the stream at δ ~= -14° that would be consistent with the transition from leading to trailing arms. This coincides with a moderate concentration of 137±25 stars (to g = 21.6) that we consider a possible remnant of the Orphan progenitor. The position of this feature is in agreement with previous predictions.

Abstract Copyright:

Journal keyword(s): Galaxy: halo - Galaxy: structure

Simbad objects: 8

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