Blue stragglers - A search for binaries in the infrared

Bibcode
1991A&A...251...49M
Manteiga, M.; Martinez Roger, C.; Morales, C.; Sabau, L.
Referencia bibliográfica

Astronomy and Astrophysics (ISSN 0004-6361), vol. 251, no. 1, Nov. 1991, p. 49-58. Research supported by Ministerio de Educacion y Ciencia of Spain.

Fecha de publicación:
11
1991
Número de autores
4
Número de autores del IAC
2
Número de citas
10
Número de citas referidas
10
Descripción
Infrared photometry in the J, H and K bands, performed on a sample of 33 blue stragglers (BS) belonging to 8 open clusters is presented. This photometry has been combined with published Johnson UBV photometry to search for possible cold companions among the BS, as expected for Case B close binary evolution. Probable binaries were identified by comparison with standard mean color relations for single stars. The number of binary detections is discussed together with the results of a previous spectroscopic search for binaries among BS (Manteiga et al. 1989), and the consequences for the hypothesis of binarity for the origin of BS are analyzed.
Tipo
Con árbitro
Estrellas binarias
Fotometría infrarroja
Evolución estelar

Te puede interesar

  • Con árbitro
    Characterisation at Cryogenic Temperatures of an Attenuator for an Application of Astrophysical Instrumentation with MKIDs
    The use of non-cryogenic certified commercial electronics for cryogenic applications may be attractive due to their cost and availability, but it also carries risks related to reliability, performance and thermal compatibility. The decision to use commercial components that are not certified for cryogenics instead of components specifically
    Rodríguez Ramos L.F. et al.

    Fecha de publicación:

    12
    2024
  • Con árbitro
    "SNe Ia Twins for Life": Toward a Precise Determination of H <SUB>0</SUB>
    Here we present an approach to the measurement of extragalactic distances using twin SNe Ia, taken from the early down to the nebular phase. The approach is purely empirical, although we can give a theoretical background on why the method is reliable. By studying those twins in galaxies where peculiar velocities are relatively unimportant, we can
    Ruiz-Lapuente, P. et al.

    Fecha de publicación:

    12
    2024
    Bibcode
    2024ApJ...977..180R
    Número de citas
    0
  • Con árbitro
    Euclid: High-precision imaging astrometry and photometry from Early Release Observations: I. Internal kinematics of NGC6397 by combining Euclid and Gaia data
    The instruments at the focus of the Euclid space observatory offer superb, diffraction-limited imaging over an unprecedented (from space) wide field of view of 0.57 deg 2. This exquisite image quality has the potential to produce high-precision astrometry for point sources once the undersampling of Euclid's cameras is taken into account by means of
    Libralato, M. et al.

    Fecha de publicación:

    12
    2024
    Bibcode
    2024A&A...692A..96L
    Número de citas
    0