Blue straggler stars in the globular cluster NGC 5466

Details Blue straggler stars in the globular cluster NGC 5466 Blue straggler stars in the globular cluster NGC 5466

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...316..172n&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 316, May 1, 1987, p. 172-188.

Astronomy and Astrophysics

Astrophysics

123

Astronomical Photometry, Binary Stars, Blue Stars, Globular Clusters, Star Clusters, Astronomical Photography, Cepheid Variables, Color-Magnitude Diagram, Radial Distribution, Stellar Evolution, Stellar Luminosity

Scientific paper

Forty-eight blue straggler stars have been discovered in NGC 5466, the only Galactic globular cluster known to contain an anomalous Cepheid of the sort found in dwarf galaxies. The stars were identified in color-magnitude (C-M) diagrams constructed from photometry of deep photographic plates and CCD frames. The stars typically have magnitudes >V< ≡ 19.1 and colors >B-V< ≡ 0.2. The blue stragglers are more centrally concentrated than the subgiant stars of the same magnitude. The origin of these stars is discussed. It is concluded that the blue stragglers probably are either close binary systems that have transferred mass, or are coalesced stars. By fitting theoretical isochrones to the photographic C-M diagram, NGC 5466 is estimated to have an age of 18±3 Gyr.

Affiliated with

Also associated with

No associations

Rating

Blue straggler stars in the globular cluster NGC 5466 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 Blue straggler stars in the globular cluster NGC 5466, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blue straggler stars in the globular cluster NGC 5466 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-856911