Tue
10th July		 Wed
11th July		 Thu
12th July		 Fri
13th July		 Sat
14th July		 Sun
15th July		 Mon
16th July
800 830
900 1030 Róbert Szabó Krisztina Gabányi
1030 1100
1100 1230 Sándor Frey László Kiss
1230 1300
1400 1630 András Kovács

Kristóf Petrovay

 László Molnár

Other section
1630 1830
1800 1830
1930 2030
2030

11th July


A/11/1: 900-1020

Róbert Szabó: Exoplanets and Asteroseismology: Astrophysics with the Kepler Space Telescope

Exoplanets and Asteroseismology: Astrophysics with the Kepler Space Telescope

NASA’s Kepler Mission was designed to find Earth-like planets in the habitable zones around solar-like stars. The telescope is searching for tiny dimmings caused by transiting planets in the light of 150,000 stars. Since its launch in 2009 the instrument has revolutionized our view on the formation and evolution of planetary systems by finding thousands of planet candidates. The unprecedented photometric precision allows us to investigate stellar interiors at a completely new level by observing their oscillations. The frequency spectrum of stars is a surprisingly useful astrophysical tool: it carries information on the global (mass, radius, age, chemical composition) and local physical parameters (density and sound speed profiles, location of convection zones, rotation) of the stars.

In my talk I overview the Kepler Mission, discuss its present status and summarize the most important and interesting planetary and stellar discoveries. By the end of my talk the audience will know

  • why we believe that we live in a Golden Age of astronomy,
  • what seismology has to do with astrophysics,
  • what heartbeat stars are,
  • whether Earth-like planets are common in the Galaxy,
  • why George Lucas was right.


A/11/2: 1100-1220

Sándor Frey

12th July


A/12/1: 900-1020

Krisztina Gabányi


A/12/2: 1100-1220

László Kiss: Idegen világok nyomában – bolygók más csillagok körül

A más csillagok körül keringő (extraszoláris) bolygórendszerek kutatása a jelenkor csillagászatának talán legpezsgőbb szakterülete, amely rendkívül szerteágazó vizsgálatokat inspirál. A megfigyelő csillagászat jelenleg a bolygók kimutatására koncentrál a központi csillagokra gyakorolt rendkívül parányi hatások egyre finomabb műszeres érzékelésén keresztül, ám néhány esetben már közvetlenül a bolygókra vonatkozó ismereteket is sikerült kinyerni, elsősorban az infravörös tartományban végzett méréseken keresztül. Előadásomban áttekintem a terület legizgalmasabb friss eredményeit, különös tekintettel a többszörös exobolygórendszerek jelentőségére, valamint az extraszoláris kis égitestek (exoholdak, exoüstökösök) felfedezésének lehetőségeire, várható következményeire.


A/12/3: 1400-1450

András Kovács:


A/12/4: 1530-1620

Kristóf Petrovay: Helical magnetic fields in the Sun

Magnetic fields in the solar atmosphere are often observed to have a characteristic twisted or helical structure. This helicity imposes important topological constraints on the dynamics of the field and has important consequences for eruptive phenomena and for the solar dynamo. The talk gives a theoretical and observational overview of helical magnetic fields in the Sun, then it presents one possible explanation for the origin of the observed helicity: accretion of poloidal flux by emerging toroidal flux tubes.

14th July


A/14/3: 1400-1450

László Mornál: The Keplerian revolution of stellar astrophysics

The Kepler space telescope set a new standard in observing the stars in the Milky Way: it has been measuring the brightnesses of about 150 000 stars simultaneously with unprecedented precision and with over 90% temporal coverage over three years now. It has revolutionised our knowledge both about exoplanets and stars. I will present the technical challenges of obtaining such measurements and some of the scientific results we have achieved: the diversity of planetary systems, the detection of solar-like oscillations and other features in thousands of other stars and the new views of pulsating and binary stars.

15th July