HII Region Luminosity Functions: Derivation of a New Standard Candle for Extragalactic Distances

Bibcode
2001ASPC..230..335Z
Zurita, A.; Cardwell, A.; Beckman, J. E.; Rozas, M.
Referencia bibliográfica

in Galaxy Disks and Disk Galaxies, proceeding of a conference held in Rome, Italy, June 12-16, 2000 at the Pontifical Gregorian University and sponsored by the Vatican Observatory. ASP Conference Series, Vol. 230. Edited by José G. Funes, S. J. and Enrico Maria Corsini. San Francisco: Astronomical Society of the Pacific. ISBN: 1-58381-063-3, 2001, pp. 335-336

Advertised on:
0
2001
Número de autores
4
Número de autores del IAC
3
Número de citas
2
Número de citas referidas
2
Descripción
We propose the use of the break in the HII region luminosity function (LF) as a possible refined powerful standard candle for extragalactic distances. The invariance and high luminosity of the LF break has been proposed in previous studies as a possible secondary standard candle, but it is calibrated here for the first time using the LFs of NGC 925 and M 100, whose Cepheid distances have been determined in the HST Extragalactic Distance Scale Key Project.
Tipo
Sin árbitro

Te puede interesar

  • Sin árbitro
    Performance and first measurements of the MAGIC Stellar Intensity Interferometer
    In recent years, a technology developed between the 1950s and 1970s by the pioneering experiments of Hanbury Brown and Twiss has (re)emerged: the Stellar Intensity Interferometry (SII). Unlike amplitude interferometry, SII exploits a second-order effect that can be measured by correlating the light intensities at different detectors without the
    Fiori, Michele et al.

    Advertised on:

    7
    2024
    Bibcode
    2024eas..conf.1256F
    Número de citas
    0
  • Sin árbitro
    Distances to globular cluster-rich UDGs: The case of NGC1052-DF2
    Some ultra-diffuse galaxies (UDGs) are known to host very large globular cluster (GC) systems, clearly exceeding the expectations for galaxies with such low stellar mass and density and thereby challenging our understanding of star cluster formation and its connection to galaxy evolution. As bright point-sources, GCs in UDGs have been used as
    Fahrion, Katja et al.

    Advertised on:

    7
    2024
    Bibcode
    2024eas..conf..397F
    Número de citas
    0
  • Sin árbitro
    The luminosity functions of an homogeneous sample of 50 young nearby open clusters
    Open clusters are groups of coeval stars sharing properties such as distance and metallicity, and they are key to understanding stellar evolution. We shed light on the evolution of open clusters with a special focus on the universality of the luminosity function. We applied an upgraded version of the convergent point technique on about 50 open
    Lodieu, Nicolas et al.

    Advertised on:

    7
    2024
    Bibcode
    2024eas..conf..512L
    Número de citas
    0