The OTELO Survey: The Star Formation Rate Evolution of Low-mass Galaxies

Bibcode
2021ApJ...915L..17C
DOI
10.3847/2041-8213/ac0a7e
Cedrés, Bernabé; Pérez-García, Ana María; Pérez-Martínez, Ricardo; Cerviño, Miguel; Gallego, Jesús; Bongiovanni, Ángel; Cepa, Jordi; Navarro Martínez, Rocío; Nadolny, Jakub; Lara-López, Maritza A.; Sánchez-Portal, Miguel; Alfaro, Emilio J.; de Diego, José A.; González-Otero, Mauro; Jesús González, J.; Ignacio González-Serrano, J.; Padilla Torres, Carmen P.
Referencia bibliográfica

The Astrophysical Journal

Fecha de publicación:
7
2021
Revista
The Astrophysical Journal
Número de autores
17
Número de autores del IAC
4
Número de citas
0
Número de citas referidas
0
Descripción
We present the analysis of a sample of Hα, Hβ, and [O II] emission line galaxies from the OTELO survey, with masses typically below $\mathrm{log}({M}_{* }/{M}_{\odot })\sim 9.4$ and redshifts between z ~ 0.4 and 1.43. We study the star formation rate, star formation rate density, and their number density and evolution with redshift. We obtain a robust estimate of the specific star formation rate-stellar mass relation based on the lowest-mass sample published so far. We also determine a flat trend of the star formation rate density (SFRD) and number density with redshift. Our results suggest a scenario of no evolution of the number density of galaxies, regardless of their masses, up to redshift z ~ 1.4. This implies a gradual change of the relative importance of the star-forming processes, from high-mass galaxies to low-mass galaxies, with decreasing redshift. We also find little or no variation of the SFRD in the redshift range of 0.4 < z < 1.43.
Proyectos relacionados
Project Image
Evolución de Galaxias

El estudio de la evolución de las galaxias es un tema crucial de la Astronomía Extragaláctica moderna. Permite vincular las galaxias locales con las primeras que existieron en el universo. Pero para poder abordarlo es preciso obtener censos estadísticamente significativos de galaxias de distintas luminosidades, a distintas distancias

Jorge
Cepa Nogue
En ejecución
Tipo
Con árbitro
Función de luminosidad
Cosmología observacional
Formación estelar
Galaxias con estallidos
Cartografiados
Formación y Evolución de Galaxias (FYEG)

Te puede interesar

  • Con árbitro
    Stellar halo density with LAMOST K and M giants

    Aims: We derive the morphology of the stellar component in the outer halo volume, and search for possible overdensities due to substructures therein. Methods: We made use of some of the data releases of the spectroscopic survey LAMOST DR8-DR9 in tandem with distance determinations for two subsamples, that is, of K-giants and M-giants, respectively

    López-Corredoira, M. et al.

    Fecha de publicación:

    4
    2024
    Bibcode
    2024A&A...684A.135L
    Número de citas
    1
  • Con árbitro
    Euclid preparation. XXXVI. Modelling the weak lensing angular power spectrum

    This work considers which higher order modeling effects on the cosmic shear angular power spectra must be taken into account for Euclid. We identified the relevant terms and quantified their individual and cumulative impact on the cosmological parameter inferences from Euclid. We computed the values of these higher order effects using analytic

    Euclid Collaboration et al.

    Fecha de publicación:

    4
    2024
    Bibcode
    2024A&A...684A.138E
    Número de citas
    4
  • Con árbitro
    The discovery space of ELT-ANDES. Stars and stellar populations

    The ArmazoNes high Dispersion Echelle Spectrograph (ANDES) is the optical and near-infrared high-resolution echelle spectrograph envisioned for the Extremely Large Telescope (ELT). We present a selection of science cases, supported by new calculations and simulations, where ANDES could enable major advances in the fields of stars and stellar

    Roederer, Ian U. et al.

    Fecha de publicación:

    4
    2024
    Bibcode
    2024ExA....57...17R
    Número de citas
    0