The galactic globular cluster system - Constraints from Synthetic Horizontal Branches

Bibcode
1987A&AS...68..119C
Caputo, F.; de Stefanis, P.; Paez, E.; Quarta, M. L.
Bibliographical reference

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 68, no. 1, Feb. 1987, p. 119-140.

Advertised on:
2
1987
Number of authors
4
IAC number of authors
1
Citations
31
Refereed citations
27
Description
Synthetic horizontal branches, constructed on the basis of Sweigart and Gross (1976) horizontal branch star models and of the recently revised theoretical instability strip (Stellingwerf, 1984) are presented for various chemical compositions appropriate for Population II systems, for various assumptions on the mass size of the helium core and for cluster age in the range of 12 - 15 billion years. Some selected data, related with the pulsational properties of RR Lyrae pulsators and with the horizontal branch morphology, are analysed and compared with observed horizontal branches.
Type
Refereed
Horizontal branch stars
Stellar evolution
Giant stars
Variable stars

It may interest you

  • Refereed
    Copacabana: a probabilistic membership assignment method for galaxy clusters
    Cosmological analyses using galaxy clusters in optical/near-infrared photometric surveys require robust characterization of their galaxy content. Precisely determining which galaxies belong to a cluster is crucial. In this paper, we present the COlor Probabilistic Assignment of Clusters And BAyesiaNAnalysis (Copacabana) algorithm. Copacabana
    Esteves, J. H. et al.

    Advertised on:

    1
    2025
    Bibcode
    2025MNRAS.536..931E
    Citations
    1
  • Refereed
    Constraints on compact objects from the Dark Energy Survey 5-yr supernova sample
    Gravitational lensing magnification of Type Ia supernovae (SNe Ia) allows information to be obtained about the distribution of matter on small scales. In this paper, we derive limits on the fraction $\alpha$ of the total matter density in compact objects (which comprise stars, stellar remnants, small stellar groupings, and primordial black holes)
    Shah, P. et al.

    Advertised on:

    1
    2025
    Bibcode
    2025MNRAS.536..946S
    Citations
    0
  • Refereed
    Multiband Optical Variability of the Blazar 3C 454.3 on Diverse Timescales
    Due to its peculiar and highly variable nature, the blazar 3C 454.3 has been extensively monitored by the WEBT team. Here, we present for the first time these long-term optical flux and color variability results using data acquired in B, V, R, and I bands over a time span of about two decades. We include data from WEBT collaborators and public
    Dogra, Karan et al.

    Advertised on:

    1
    2025
    Bibcode
    2025ApJS..276....1D
    Citations
    0