Göteborgs Lise Meitnerpris 2017

Prisceremoni och föreläsning – Göteborgs Lise Meitnerpris 2017

Astrofysikern Professor Françoise Combes från l’Observatoire de Paris, LERMA, Frankrike är årets vinnare av Göteborgs Lise Meitnerpris. Hon besöker Fysikcentrum Göteborg för att ta emot priset och för att ge den traditionella föreläsningen till ära av den österrikisk-svenska fysikern Lise Meitner. Professor Combes tilldelas priset "för banbrytande forskning inom extragalaktisk astronomi om grundläggande aspekter av fysiken och utvecklingen av galaxer." Efter föreläsningen bjuds det på förfriskning med tilltugg och en chans att mingla med pristagaren.


"When Supermassive Black Holes are Too Greedy"

The majority of galaxies host in their center a super-massive black hole of mass between one million and a few billion solar masses. The mass of the black hole is proportional to the bulge mass, which suggests a tight  relation between star formation and black hole growth.
When gas infalls to the center, the black hole swallows as much as possible, but it is limited.

Mat

ter infalling on the black hole liberates a considerable energy, radiation and kinetic energy. The galaxy nucleus becomes active, either a Seyfert, or a quasar. The winds and plasma jets emitted by the black hole, drag the molecular gas around. So much mass is ejected that it can have a large impact on the host galaxy, quenching the star formation.

The supermassive black holes, in rejecting their food, thus control the star formation rate in galaxies.

Om Françoise Combes

Professor Françoise Combes is an astrophysicist at l’Observatoire de Paris, LERMA, France. Her research focus is on formation and evolution of galaxies. She has also contributed to various models of dark matter. Earlier this year she was elected Honorary member of the American Astronomical Society. Other recent accomplishments include being awarded Officer of the French Legion of Honour in 2015, which is the highest French order of merit for military and civil merits.

Kategori Evenemang; Öppen föreläsning
Plats: FB, lecture hall, Fysik Origo, Fysik
Tid: 2017-09-21 15:15
Sluttid: 2017-09-21 17:00

Publicerad: on 30 aug 2017. Ändrad: fr 01 sep 2017