White Dwarfs in ω Centauri: Preliminary Evidence

Bibcode
2005ASPC..334...55B
Bono, G.; Monelli, M.; Stetson, P. B.; Prada Moroni, P. G.; Buonanno, R.; Calamida, A.; Ferraro, I.; Iannicola, G.; Corsi, C. E.; Pulone, L.
Bibliographical reference

14th European Workshop on White Dwarfs, ASP Conference Series, Vol. 334 Proceedings of a meeting held at Kiel, July 19-23, 2004. Edited by D. Koester and S. Moehler. San Francisco: Astronomical Society of the Pacific, 2005, p.55

Advertised on:
7
2005
Number of authors
10
IAC number of authors
0
Citations
5
Refereed citations
4
Description
We present accurate and deep multiband B,R,Hα data for the globular cluster ω Cen collected with the Advanced Camera for Surveys on HST. The photometric catalogue includes more than one million stars. By adopting severe selection criteria we identified more than 600 bona fide White Dwarfs (WDs). Empirical evidence suggests that a small sample of WDs are Hα-bright. The comparison between WD isochrones and observations shows a reasonable agreement at fainter magnitudes and a mismatch at the brighter ones.
Type
Non-refereed

It may interest you

  • Non-refereed
    Deep HST Imaging Favors the Bulgeless Edge-on Galaxy Explanation for the Hypothetical Stellar Wake Created by a Runaway Supermassive Black Hole
    A long linear structure recently discovered could be the stellar wake produced by the passage of a runaway supermassive black hole (SMBH) or, alternatively, a bulgeless edge-on galaxy. We report on new very deep Hubble Space Telescope imaging that seems to be in tension with the SMBH runaway scenario but is consistent with the bulgeless edge-on
    Montes, Mireia et al.

    Advertised on:

    6
    2024
    Bibcode
    2024RNAAS...8..150M
    Citations
    0
  • Non-refereed
    The molecular gas perspective on the growth and death of H emitters in the Spiderweb protocluster at Alpha z=2.16
    Galaxy clusters at low redshift are dominated by massive quiescent galaxies hosting stellar populations 10 Gyrs old, indicating that they were formed in the early universe when clusters were still in the process of being assembled (i.e., protoclusters). The rapid growth of galaxies within protoclusters is driven by the efficient transformation of
    Martinez, J. M. P.

    Advertised on:

    3
    2024
    Bibcode
    2024aecc.conf...12M
    Citations
    0
  • Non-refereed
    Magnetohydrodynamic Processes in Solar Plasmas
    Magnetohydrodynamic Processes in Solar Plasmas provides a comprehensive theory and practice of basic plasma processes in the Sun and heliosphere. It deals with the basic dynamics of the Sun from its interior up to its outer atmosphere in the framework of Magnetohydrodynamics. Topics covered include essential phenomena in the solar interior such as
    Srivastava, Abhishek Kumar et al.

    Advertised on:

    5
    2024
    Bibcode
    2024mpsp.book.....S
    Citations
    0