More Evidence for a Population of Intracluster Planetary Nebulae in the Virgo Cluster

Bibcode
1997ApJ...491L..23M
DOI
10.1086/311047
Ford, H.; Capaccioli, M.; Hopp, U.; Kudritzki, R. P.; Arnaboldi, M.; Freeman, K. C.; Guerrero, M. A.; Mendez, R. H.
Referencia bibliográfica

Astrophysical Journal Letters v.491, p.L23

Fecha de publicación:
12
1997
Número de autores
8
Número de autores del IAC
1
Número de citas
53
Número de citas referidas
33
Descripción
We surveyed a 50 arcmin 2 region in the Virgo cluster core to search for intergalactic planetary nebulae and found 11 candidates in the surveyed area. The measured fluxes of these unresolved sources are consistent with these objects being planetary nebulae from an intergalactic population of stars, although we cannot exclude some minor contamination of our sample by redshifted starburst galaxies. We compute the cumulative luminosity function of these 11 planetary nebula candidates. If we assume that they belong to the Virgo cluster, their cumulative luminosity function is in good agreement with planetary nebula luminosity-function simulations for a typical stellar population of ellipticals or spiral bulges. This comparison allows us to estimate the surface mass density of the intergalactic stellar population at the surveyed field in the cluster core.
Tipo
Con árbitro
Galaxias
Medio intergaláctico
Nebulosas planetarias

Te puede interesar

  • Con árbitro
    Identification of the Top TESS Objects of Interest for Atmospheric Characterization of Transiting Exoplanets with JWST
    JWST has ushered in an era of unprecedented ability to characterize exoplanetary atmospheres. While there are over 5000 confirmed planets, more than 4000 Transiting Exoplanet Survey Satellite (TESS) planet candidates are still unconfirmed and many of the best planets for atmospheric characterization may remain to be identified. We present a sample
    Hord, Benjamin J. et al.

    Fecha de publicación:

    5
    2024
    Bibcode
    2024AJ....167..233H
    Número de citas
    0
  • Con árbitro
    High-resolution Spectroscopic Reconnaissance of a Temperate Sub-Neptune
    The study of temperate sub-Neptunes is the new frontier in exoplanetary science. A major development in the past year has been the first detection of carbon-bearing molecules in the atmosphere of a temperate sub-Neptune, K2-18 b, a possible Hycean world, with the James Webb Space Telescope (JWST). The JWST is poised to characterize the atmospheres
    Cabot, Samuel H. C. et al.

    Fecha de publicación:

    5
    2024
    Bibcode
    2024ApJ...966L..10C
    Número de citas
    0
  • Con árbitro
    Nonlinear Wave Damping by Kelvin–Helmholtz Instability-induced Turbulence
    Magnetohydrodynamic kink waves naturally form as a consequence of perturbations to a structured medium, for example, transverse oscillations of coronal loops. Linear theory has provided many insights into the evolution of linear oscillations, and results from these models are often applied to infer information about the solar corona from observed
    Hillier, Andrew et al.

    Fecha de publicación:

    5
    2024
    Bibcode
    2024ApJ...966...68H
    Número de citas
    0