The spectra and ages of blue stragglers

Details The spectra and ages of blue stragglers The spectra and ages of blue stragglers

Jul 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...294l.103a&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 294, July 15, 1985, p. L103-L106.

Astronomy and Astrophysics

Astrophysics

39

A Stars, Blue Stars, Peculiar Stars, Stellar Spectra, Magnetic Stars, Main Sequence Stars, Stellar Evolution, Stellar Rotation

Scientific paper

A mechanism similar to Wheeler's 'quasi-homogeneous evolution' and Finzi and Wolf's proposal for blue stragglers is proposed as the origin of the blue stragglers in intermediate-age clusters. Blue stragglers are stars whose positions in color-magnitude diagrams of open and globular clusters are significantly above the turn-off points and in the region of the (former) main sequence; they seem to represent a conflict with the general conclusion that all stars in a cluster originated at about the same time. It is concluded that there are at least two kinds of blue stragglers: (1) those stars of types about B3-A2 are primarily Ap stars and slow rotators, occur in the intermediate age clusters and remain in the main sequence region probably through magnetic mixing; and (2) the stars of type O6-B2 frequently have emission lines, are rapid rotators, occur in the young cluster, and remain in the main sequence region probably by rotational mixing.

Affiliated with

Also associated with

No associations

Rating

The spectra and ages of blue stragglers 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 The spectra and ages of blue stragglers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The spectra and ages of blue stragglers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1231391