On the optical variability of the QSO PKS 2128-123

Bibcode
1985AJ.....90...39M
DOI
10.1086/113705
Moles, M.; Garcia-Pelayo, J.; Masegosa, J.; Aparicio, A.
Referencia bibliográfica

Astronomical Journal (ISSN 0004-6256), vol. 90, Jan. 1985, p. 39-42.

Fecha de publicación:
1
1985
Número de autores
4
Número de autores del IAC
0
Número de citas
7
Número de citas referidas
7
Descripción
Although the QSO PKS 2128 - 123 appears as highly variable in the I band, with Delta-I of up to 1.69 mag, it is a moderate amplitude variable object in the other bands of the present UBVRI observations. Excluding these I fluxes, the average continuum is well fitted by a power law when the Balmer continuum contribution, which enters the V band, has been removed. The variability parameter of only about 1 day implies a very compact source for the continuum.
Tipo
Con árbitro
Cuásares
Fuentes de radio extragalácticas
Astronomía infrarroja

Te puede interesar

  • Con árbitro
    Noema formIng Cluster survEy (NICE): Discovery of a starbursting galaxy group with a radio-luminous core at z = 3.95
    The study of distant galaxy groups and clusters at the peak epoch of star formation is limited by the lack of a statistically and homogeneously selected and spectroscopically confirmed sample. Recent discoveries of concentrated starburst activities in cluster cores have opened a new window to hunt for these structures based on their integrated IR
    Zhou, L. et al.

    Fecha de publicación:

    4
    2024
    Bibcode
    2024A&A...684A.196Z
    Número de citas
    3
  • Con árbitro
    TREASUREHUNT: Transients and Variability Discovered with HST in the JWST North Ecliptic Pole Time-domain Field
    The James Webb Space Telescope (JWST) North Ecliptic Pole (NEP) Time-domain Field (TDF) is a >14' diameter field optimized for multiwavelength time-domain science with JWST. It has been observed across the electromagnetic spectrum both from the ground and from space, including with the Hubble Space Telescope (HST). As part of HST observations over
    O'Brien, Rosalia et al.

    Fecha de publicación:

    5
    2024
    Bibcode
    2024ApJS..272...19O
    Número de citas
    0
  • Con árbitro
    SMARTY: The MILES moderate resolution near-infrared stellar library
    Most of the observed galaxies cannot be resolved into individual stars and are studied through their integrated spectrum using simple stellar populations (SSPs) models, with stellar libraries being a key ingredient in building them. Spectroscopic observations are increasingly being directed towards the near-infrared (NIR), where much is yet to be
    Bertoldo-Coêlho, Michele et al.

    Fecha de publicación:

    6
    2024
    Bibcode
    2024MNRAS.530.3651B
    Número de citas
    0