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X-raying the Galactic center and Galactic outflow
报告题目:X-raying the Galactic center and Galactic outflow
报 告  人:Dr. Gabriele Ponti (INAF Brera & Max-Planck-Institute for Extraterrestrial Physics)
报告时间:2022-04-07 16:00:00
报告地点:https://umeet.com.cn/j/15504737171

Abstract: Being located at only ~8 kpc from us, the center of our Galaxy provides us with the unique opportunity to study the physics occurring in the core of normal galaxies at very high spatial resolution. Thanks to its penetrating power, the X-ray band is particularly suited for studies of the Galactic center, allowing us to have a direct view of the central heart of the Milky Way. Over the past years, evidence has mounted that outflows of matter and energy from the core of our Milky Way have shaped the observed structure of the Galaxy on a variety of larger scales. On the one hand, within the central few square degrees of the Galaxy, X-ray maps have discovered two prominent X-ray structures extending hundreds of parsecs above and below the plane, which appear to connect the Galactic Centre region to the Fermi bubbles. On the other hand, large scale X-ray maps have revealed that the Galactic outflow is at least ten times more extended and energetic than previously thought. In this talk, I will review our current knowledge of the X-ray emission from the Milky Way center and the Galactic outflow.


Biography: Dr. Gabriele Ponti did his PhD study on relativistic effects in AGN with X-ray observations in the University of Bologna (with one year in Cambridge UK). After obtained the doctor degree, he went to the APC laboratory in Paris for his first postdoc research on the X-ray observatoin of the Galactic center. He moved to the University of Southampton as the Marie Curie fellow working on winds in X-ray binaries. After that, he joined MPE in Germany with his second Marie Curie fellowship working on X-ray observations of binaries, AGN, the Galactic center, and in the meantime prepare to work on the eROSITA data. In 2018, he moved back to Italy with a permanent research position at INAF Osservatorio Astronomico di Brera, and was awarded an ERC consolidator grant to study the diffuse emission in the eROSITA data. His team in now half in INAF Brera and half in MPE. His main focus is on the hot phase of the Milky Way (circus-Galactic medium), the Galactic outflow and the hot phase of other galaxies.