Blue stragglers and the binary hypothesis

Bibcode
1989A&A...210...66M
Manteiga, M.; Martinez Roger, C.; Pickles, A. J.
Bibliographical reference

Astronomy and Astrophysics (ISSN 0004-6361), vol. 210, no. 1-2, Feb. 1989, p. 66-77.

Advertised on:
2
1989
Number of authors
3
IAC number of authors
2
Citations
27
Refereed citations
25
Description
An observational test of the binary hypothesis for the origin of blue straggler stars is conducted by searching for radial velocity variables among 30 blue stragglers in several galactic clusters. Only one of the slowly rotating blue stragglers is detected as a radial velocity variable, and it is shown that this finding does not correspond to the close binary model at the 99 percent confidence level. It is concluded that binarity is almost certainly not a causal requirement for any blue straggler. The results are compared to the binary distribution expected under the model of Collier and Jenkins (1984).
Type
Refereed
Binary stars
Star clusters
Stellar evolution
Stellar rotation
Astronomical models
Radial velocity

It may interest you

  • Refereed
    Long-term variability in debris transiting white dwarfs

    Combining archival photometric observations from multiple large-area surveys spanning the past 17 years, we detect long-term variability in the light curves of ZTF J032833.52-121945.27 (ZTF J0328-1219), ZTF J092311.41+423634.16 (ZTF J0923+4236), and WD 1145+017, all known to exhibit transits from planetary debris. ZTF J0328-1219 showed an overall

    Aungwerojwit, Amornrat et al.

    Advertised on:

    5
    2024
    Bibcode
    2024MNRAS.530..117A
    Citations
    0
  • Refereed
    ALMA reveals a compact and massive molecular outflow driven by the young AGN in a nearby ULIRG

    The ultraluminous infrared galaxy F13451+1232 is an excellent example of a galaxy merger in the early stages of active galactic nucleus (AGN) activity, a phase in which AGN-driven outflows are expected to be particularly important. However, previous observations have determined that the mass outflow rates of the warm ionized and neutral gas phases

    Holden, Luke R. et al.

    Advertised on:

    5
    2024
    Bibcode
    2024MNRAS.530..446H
    Citations
    0
  • Refereed
    The universal variability of the stellar initial mass function probed by the TIMER survey

    The debate about the universality of the stellar initial mass function (IMF) revolves around two competing lines of evidence. While measurements in the Milky Way, an archetypal spiral galaxy, seem to support an invariant IMF, the observed properties of massive early-type galaxies (ETGs) favor an IMF somehow sensitive to the local star-formation

    Martín-Navarro, Ignacio et al.

    Advertised on:

    4
    2024
    Bibcode
    2024A&A...684A.110M
    Citations
    0