Skip navigation
Skip navigation
The system will be down for maintenance between 8:00 and 8:15am on Wednesday 12, December 2018

Hunting the parent of the orphan stream: Identifying stream members from low-resolution spectroscopy

Casey, Andrew; Da Costa, Gary; Keller, Stefan; Maunder, Elizabeth

Description

We present candidate K-giant members in the Orphan Stream that have been identified from low-resolution data taken with the AAOmega spectrograph on the Anglo-Australian Telescope. From modest signal-to-noise spectra and independent cuts in photometry, kinematics, gravity, and metallicity we yield self-consistent, highly probable stream members. We find a revised stream distance of 22.5 ± 2.0 kpc near the celestial equator and our kinematic signature peaks at V GSR = 82.1 ± 1.4 km s-1. The...[Show more]

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
URI: http://hdl.handle.net/1885/70885
Source: Astrophysical Journal, The
DOI: 10.1088/0004-637X/764/1/39

Download

File Description SizeFormat Image
01_Casey_Hunting_the_parent_of_the_2013.pdf689.76 kBAdobe PDF


Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  27 November 2018/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator