Astrofísicas: Nebulosas planetarias

  • Charla
    The discovery of a supernova type Ia progenitor at the heart of a planetary nebula
    I will report on the results of our paper published in Nature this week, outlining the discovery of a super-Chandrasekhar double-degenerate binary system at the...
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    The Dynamical Evolution of Planetary Nebulae after the Fast Wind
    We explore the dynamics of ionization-bounded planetary nebulae after the termination of the fast stellar wind. When the stellar wind becomes negligible, the...
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    The Dynamical Evolution of the Circumstellar Gas around Low- and Intermediate-Mass Stars. I. The Asymptotic Giant Branch
    We have investigated the dynamical interaction of low- and intermediate-mass stars (from 1 to 5 Msolar) with their interstellar medium (ISM). In this first...
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    The Dynamical Evolution of the Circumstellar Gas around Low- and Intermediate-Mass Stars. II. The Planetary Nebula Formation
    We have studied the effect of the mass of the central star (CS) on the gas evolution during the planetary nebula (PN) phase. We have performed numerical...
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    The edge of the M 87 halo and the kinematics of the diffuse light in the Virgo cluster core
    Aims: We study the kinematics and dynamics of the extreme outer halo of M 87, the central galaxy in the Virgo cluster, and its transition to the intracluster...
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    The effect of temperature fluctuations on the determination of the carbon abundance of planetary nebulae.
    By combining the C III λλ1906+1909 with the C II λ4267 line intensities it is possible to determine T(C++); this temperature is, in general, considerably...
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    The evolution of M 2-9 from 2000 to 2010
    Context. Understanding the formation of collimated outflows is one of the most debated and controversial topics in the study of the late stages of stellar...
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    The Evolving Morphology of the Bipolar Nebula M2-9
    The planetary nebula M2-9 has drastically changed its shape since its discovery by Minkwoski. Although the outline of the nebula seems to be stationary, most of...
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    The Formation of Fullerenes: Clues from New C60, C70, and (Possible) Planar C24 Detections in Magellanic Cloud Planetary Nebulae
    We present 10 new Spitzer detections of fullerenes in Magellanic Cloud Planetary Nebulae, including the first extragalactic detections of the C70 molecule...