Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008apj...681..735k&link_type=abstract
The Astrophysical Journal, Volume 681, Issue 1, pp. 735-735.
Astronomy and Astrophysics
Astrophysics
Scientific paper
The velocity dispersion of Cygnus OB2 was incorrectly quoted in the original manuscript as σV=2.44+/-0.07 km s-1 for Vavg (the weighted average heliocentric velocities), and σV=3.41+/-0.11 km s-1 for Vmid (the averages of the largest and smallest heliocentric velocities). The FWHM values for the Gaussian fits in Figure 23 are also incorrectly quoted as 5.70+/-0.17 km s-1 and 8.01+/-0.26 km s-1 for Vavg and Vmid, respectively. The correct one-dimensional velocity dispersions and corresponding FWHM values, as indicated by the Gaussian fits to the data in Figure 23, are σV=5.74+/-0.15 km s-1 (Vavg), FWHM=13.50+/-0.36 km s-1 (Vavg), σV=8.03+/-0.26 km s-1 (Vmid), and FWHM=18.87+/-0.60 km s-1 (Vmid). These values are larger than typical OB associations and open clusters (1-2.5 km s-1 Bate & Bonnell, ApJ, 664, 1102 [2007]). The larger dispersion estimates may be attributed to the uncertain systemic velocities of binaries (both identified and unidentified), owing to the limited orbital phase information from the current data set.
Berrington Robert Charles
Fryer Christopher L.
Irwin Jennifer S.
Kiminki Daniel. C.
Kinemuchi Karen
No associations
LandOfFree
Erratum: ``A Radial Velocity Survey of the Cygnus OB2 Association'' (ApJ, 664, 1102 [2007]) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Erratum: ``A Radial Velocity Survey of the Cygnus OB2 Association'' (ApJ, 664, 1102 [2007]), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Erratum: ``A Radial Velocity Survey of the Cygnus OB2 Association'' (ApJ, 664, 1102 [2007]) will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1138106