School of Astronomy

School of Astronomy (SoA) - Weekly Seminar

First Results of Herschel SpaceTelescope Observations of M33

Fateme Tabatabaei (Max Planck Institute, Bonn, Germany)

Abstract:

At a distance of 840 kpc, M33 is the only nearby, gas rich disk galaxy
that allows a coherent survey at high spatial resolution. It lacks the
Milky Way distance ambiguity, and it is not as extended and inclined as
the Andromeda galaxy.
The Herschel M33 extended survey, HERM33ES, is a Key Science Project
observing dust and major gas cooling lines (notably C+, H2O, O, N+, and
N++) in M33. It aims to study (a) the phases of the ISM, (b) the energy
balance of the interstellar medium as a function of galactic environment,
(c) the interplay between the ISM and star formation, and (d) the
formation of molecular clouds from the diffuse atomic medium. HERM33ES
has been granted almost 200 hours of observations with all three
instruments HIFI, PACS, SPIRE onboard the Herschel space observatory. So
far, FIR/submm continuum observations with PACS & SPIRE have been
accomplished at 100, 160, 250, 350, and 500 micron. I will present some of
the first results of the HERM33ES project.

Wednesday /26-May-2010 / 5-Khordad-1389/ 2:00 PM

IPM Larak Building, School of Astronomy
Address: Larak Garden, opposite Araj, Artesh Highway,Tehran, Iran
E-mail: astro(at)ipm.ir