A main sequence star that is more luminous and bluer than expected
Sketch of Hertzsprung–Russell diagram of a globular cluster, showing blue stragglers
A blue straggler is a type of star that is more luminous and bluer than expected. Typically identified in a stellar cluster, they have a higher effective temperature than the main sequence turnoff point for the cluster, where ordinary stars begin to evolve towards the red giant branch. Blue stragglers were first discovered by Allan Sandage in 1953 while performing photometry of the stars in the globular cluster M3.[1][2]
^Sandage, Allan (1953). "The color-magnitude diagram for the globular cluster M3". The Astronomical Journal. 58: 61–75. Bibcode:1953AJ.....58...61S. doi:10.1086/106822.
^John Noble Wilford (1991-08-27). "Cannibal Stars Find a Fountain of Youth". The New York Times. Retrieved 2010-01-18.
A bluestraggler is a type of star that is more luminous and bluer than expected. Typically identified in a stellar cluster, they have a higher effective...
Ryde, N; Stello, D; Platais, I; Meibom, S (21 December 2018). "The bluestraggler V106 in NGC 6791: a prototype progenitor of old single giants masquerading...
Week. ESA/Hubble. Retrieved October 5, 2011. "APOD: 2021 February 7 – BlueStraggler Stars in Globular Cluster M53". Astronomy Picture of the Day. Retrieved...
similar to Wolf–Rayet stars but smaller and less massive; bluestragglers, uncommon luminous blue stars observed apparently on the main sequence in clusters...
Milky Way, towards the Andromeda Galaxy. Bluestraggler – A main sequence star that is more luminous and bluer than expected HE 0437-5439 – Hypervelocity...
Correspondingly, the core region contains a concentration of interaction-formed bluestraggler stars, most of which formed 2–5 billion years ago. The density of stars...
this new technology, astronomers discovered that some stars, known as bluestragglers, appeared younger than other stars in the cluster. Astronomers then...
Subgiants Giants Red giants Blue giants Bright giants Supergiants Red supergiant Hypergiants absolute magni- tude (MV) A blue supergiant (BSG) is a hot...
He-weak Barium Lambda Boötis Lead Technetium Be Shell B[e] Helium Extreme Bluestraggler Remnants Compact star Parker's star White dwarf Helium planet Neutron...
He-weak Barium Lambda Boötis Lead Technetium Be Shell B[e] Helium Extreme Bluestraggler Remnants Compact star Parker's star White dwarf Helium planet Neutron...
multiple X-ray sources, including 50 within the half-mass radius. 47 bluestraggler candidates have been identified, formed from the merger of two stars...
He-weak Barium Lambda Boötis Lead Technetium Be Shell B[e] Helium Extreme Bluestraggler Remnants Compact star Parker's star White dwarf Helium planet Neutron...
main-sequence stars. Blue (type O and type B) main sequence stars are so large that they are difficult to distinguish from blue giant stars, either in...
He-weak Barium Lambda Boötis Lead Technetium Be Shell B[e] Helium Extreme Bluestraggler Remnants Compact star Parker's star White dwarf Helium planet Neutron...
term was in 1915, used simply to contrast "red" dwarf stars from hotter "blue" dwarf stars. It became established use, although the definition remained...
Red dwarfs Subdwarfs Main sequence ("dwarfs") Subgiants Giants Red giants Blue giants Bright giants Supergiants Red supergiant Hypergiants absolute magni-...
also used for blue supergiants which have a forest of forbidden FeII lines in their spectra. They are potentially quiescent hot luminous blue variables....
originally conceived this type of classification in 1926. Baade observed that bluer stars were strongly associated with the spiral arms, and yellow stars dominated...
He-weak Barium Lambda Boötis Lead Technetium Be Shell B[e] Helium Extreme Bluestraggler Remnants Compact star Parker's star White dwarf Helium planet Neutron...
He-weak Barium Lambda Boötis Lead Technetium Be Shell B[e] Helium Extreme Bluestraggler Remnants Compact star Parker's star White dwarf Helium planet Neutron...
He-weak Barium Lambda Boötis Lead Technetium Be Shell B[e] Helium Extreme Bluestraggler Remnants Compact star Parker's star White dwarf Helium planet Neutron...
He-weak Barium Lambda Boötis Lead Technetium Be Shell B[e] Helium Extreme Bluestraggler Remnants Compact star Parker's star White dwarf Helium planet Neutron...
He-weak Barium Lambda Boötis Lead Technetium Be Shell B[e] Helium Extreme Bluestraggler Remnants Compact star Parker's star White dwarf Helium planet Neutron...
mentioned above. In all cases, q ∼ 10 − 4 {\displaystyle q\sim 10^{-4}} in blue light. Martin showed that the interstellar medium can convert LP light to...
can create binary star systems, as well as a type of star called a bluestraggler that is formed by mass transfer. A process of mass segregation may have...
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