Stellar Populations Gradients in Isolated Dwarf Galaxies

Bibcode
2012ASPC..458..287H
Hidalgo, S. L.; LCID Group
Bibliographical reference

Galactic Archaeology: Near-Field Cosmology and the Formation of the Milky Way. Proceedings of the conference held 16-20 May 2011 in Shuzenji, Japan. Edited by W. Aoki, M. Ishigaki, T. Suda, T. Tsujimoto, and N. Arimoto. ASP Conference Proceedings, Vol. 458. San Francisco, CA: Astronomical Society of the Pacific, 2012., p.287

Advertised on:
8
2012
Number of authors
2
IAC number of authors
1
Citations
1
Refereed citations
1
Description
We present the star formation history (SFH) as a function of galactocentric radius for a sample of isolated dwarf galaxies from the Local Cosmology from the Isolated Dwarfs (LCID) project. The results show a decrease of the star formation with radius for stars with ages ≤ 9 Gyr. Star formation for ages ≥ 10 Gyr is present regardless of distance to the center. The maximum metallicity of Cetus and Tucana is reached earlier than in LGS-3 and Phoenix although this effect tends to disappear at larger distances from the center. The age-metallicity realtion of LGS-3 and Phoenix is more flat at old ages, increasing at younger ages. The results suggest that, regardless the morphological type, the properties of theses galaxies tend to be the same at larger distances from the center.
Type
Non-refereed

It may interest you

  • Non-refereed
    Study of basaltic asteroids through their phase curves
    Introduction Classified as type-V, the basaltic asteroids of the Main Belt (MB), for the most part, are connected to Vesta's dynamic family. However, since the discovery of the V-type asteroid (1459) Magnya in the outer MB, several new asteroids have been found in different regions, including V-types from inner regions not belonging to the Vesta
    Arcoverde, Plicida et al.

    Advertised on:

    9
    2024
    Bibcode
    2024EPSC...17..999A
    Citations
    0
  • Non-refereed
    The LiteBIRD mission to explore cosmic inflation
    LiteBIRD, the next-generation cosmic microwave background (CMB) experiment, aims for a launch in Japan's fiscal year 2032, marking a major advancement in the exploration of primordial cosmology and fundamental physics. Orbiting the Sun-Earth Lagrangian point L2, this JAXA-led strategic L-class mission will conduct a comprehensive mapping of the CMB
    Ghigna, T. et al.

    Advertised on:

    8
    2024
    Bibcode
    2024SPIE13092E..28G
    Citations
    0
  • Non-refereed
    Performance of MAGIC stellar intensity interferometer and expansion to MAGIC + CTAO-LST1 stellar intensity interferometer
    A new generation of optical intensity interferometers are emerging in recent years taking advantage of the existing infrastructure of Imaging Atmospheric Cherenkov Telescopes (IACTs). The MAGIC SII (Stellar Intensity Interferometer) in La Palma, Spain, has been operating since its first successful measurements in 2019 and its current design allows
    Cifuentes, Alejo et al.

    Advertised on:

    8
    2024
    Bibcode
    2024SPIE13095E..27C
    Citations
    0