The Puzzling White Dwarf Cooling Sequence in NGC 6791: A Simple Solution

Bibcode
2008ApJ...679L..29B
DOI
10.1086/589151
Bedin, L. R.; Salaris, M.; Piotto, G.; Cassisi, S.; Milone, A. P.; Anderson, J.; King, I. R.
Referencia bibliográfica

The Astrophysical Journal, Volume 679, Issue 1, pp. L29-L32.

Fecha de publicación:
5
2008
Revista
The Astrophysical Journal
Número de autores
7
Número de autores del IAC
0
Número de citas
65
Número de citas referidas
55
Descripción
In this Letter we demonstrate that the puzzling bright peak in the luminosity function of the white dwarf (WD) cooling sequence of NGC 6791 can be naturally accounted for if ~34% of the observed WDs are WD+WD binary systems. Based on observations with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by AURA, Inc., under NASA contract NAS 5-26555.
Tipo
Con árbitro

Te puede interesar

  • Con árbitro
    TOpI-2447 b / NGTS-29 b: a 69-day Saturn around a Solar analogue
    Discovering transiting exoplanets with relatively long orbital periods (>10 d) is crucial to facilitate the study of cool exoplanet atmospheres (T eq < 700 K) and to understand exoplanet formation and inward migration further out than typical transiting exoplanets. In order to discover these longer period transiting exoplanets, long-term
    Gill, Samuel et al.

    Fecha de publicación:

    8
    2024
    Bibcode
    2024MNRAS.532.1444G
    Número de citas
    0
  • Con árbitro
    The Early Data Release of the Dark Energy Spectroscopic Instrument
    The Dark Energy Spectroscopic Instrument (DESI) completed its 5 month Survey Validation in 2021 May. Spectra of stellar and extragalactic targets from Survey Validation constitute the first major data sample from the DESI survey. This paper describes the public release of those spectra, the catalogs of derived properties, and the intermediate data
    DESI Collaboration et al.

    Fecha de publicación:

    8
    2024
    Bibcode
    2024AJ....168...58D
    Número de citas
    0
  • Con árbitro
    PHANGS-HST Catalogs for ∼100,000 Star Clusters and Compact Associations in 38 Galaxies. I. Observed Properties
    We present the largest catalog to date of star clusters and compact associations in nearby galaxies. We have performed a V-band-selected census of clusters across the 38 spiral galaxies of the PHANGS–Hubble Space Telescope (HST) Treasury Survey, and measured integrated, aperture-corrected near-ultraviolet-U-B-V-I photometry. This work has resulted
    Maschmann, Daniel et al.

    Fecha de publicación:

    7
    2024
    Bibcode
    2024ApJS..273...14M
    Número de citas
    0