Understanding star formation in the smallest galaxies: Integral field spectroscopy of Blue Compact Dwarfs

Mittwoch, 12. Juli 2017, 14:00 - 15:00
Veranstaltungsort* Bibliothek
 Blue Compact Dwarfs (BCDs) are an intriguing class of galaxies, whose
remarkable characteristics, namely, low-luminosities, low gas
metallicities and unusually high star-forming rates, make of them fundamental
systems in present-day extragalactic research. Because their low masses and low
sizes, BCDs constitute excellent laboratories to investigate the star-formation
process in galaxies and the impact of massive stellar feedback into the
surrounding interstellar medium. In addition, their low metallicities offer an
unique opportunity to study star formation in conditions similar to those of the
early Universe.


We are currently carrying out a comprehensive analysis of a sample of about 40
BCDs by means of integral field spectroscopy. Integral field instruments
are particularly suited to probe small, highly asymmetric and compact systems
such as BCDs because in just one shot they provide spectrophotometric and
kinematic information on their whole starburst. In this talk I will
briefly introduce our project and report on the current status of the
observations and data analysis for the sample galaxy. After that, I will focus
on the results derived for the two BCDs Haro14 and Tololo1937-423.


: José Nicolás González-Pérez