Wednesday, June 6, 2012
12:00 pm
IPAC 102 (Large Conference Room) – David W. Morrisroe Astroscience Laboratory

IPAC Astronomy Lunch Seminar

Star formation rates in LINER host galaxies
Silvia Tommasin, Tel Aviv University
Low Ionization Nuclear Emission-line Regions (LINERs) are characterized by low ionization AGN optical emission lines from the center of their host galaxies. Through the FAR-IR observations with Herschel/PACS of a sample of optically selected LINERs at z~0.3, we find that their host galaxy have a surprisingly high FAR-IR luminosity. It leads to star formation rates (SFR) up to 3 order of magnitude larger then the SFR inferred by optical (H_alpha) or UV measurements. Is this discrepancy due to high obscuration of these sources or to their star formatin history? These LINERs show also a different relation between star formation luminosity and AGN luminosity in respect with local LINERs, is this due to an evolutionary effect? We will discuss possible causes and consequences of FAR-IR properties of LINERs host galaxies, how they affect the star formation rate estimates, and their connections with the AGN emission.
Contact Luisa Rebull at x4565
For more information see
Add this event to my calendar