PACS and SPIRE photometer maps of M 33: First results of theHERschel M 33 Extended Survey (HERM33ES)

PACS and SPIRE photometer maps of M 33: First results of the HERschel M 33 Extended Survey (HERM33ES)*

Context. Within the framework of the HERM33ES key program, we are studying the star forming interstellar medium in the nearby, metal-poor spiral galaxy M 33, exploiting the high resolution and sensitivity of Herschel. Aims. We use PACS and SPIRE maps at 100, 160, 250, 350, and 500 μm wavelength, to study the variation of the spectral energy distributions (SEDs) with galacto-centric distance. Me...

O-33: Serum Anti-M

100 μm and 160 μm emission as resolved star-formation rate estimators in M 33 (HERM33ES) *

Context. Over the past few years several studies have provided estimates of the SFR (star-formation rate) or the total infrared luminosity from just one infrared band. However these relations are generally derived for entire galaxies, which are known to contain a large scale diffuse emission that is not necessarily related to the latest star-formation episode. Aims. We provide new relations to ...

XMM - Newton survey of the Local Group galaxy M 33 ⋆

In an XMM-Newton raster observation of the bright Local Group spiral galaxy M 33 we study the population of X-ray sources (X-ray binaries, supernova remnants) down to a 0.2–4.5 keV luminosity of 10 35 erg s −1 – more than a factor of 10 deeper than earlier ROSAT observations. EPIC hardness ratios and optical and radio information are used to distinguish between different source classes. The sur...

High resolution radio continuum survey of M 33 I . The radio maps

Aims. We study the exponential scale length of total radio emission, the spectral index distribution, and the linear radio polarization in the Scd galaxy M33. Methods. Observations were carried out using the 3.6 cm dual channel and the 6.2 cm four channel receivers of the 100–m Effelsberg telescope along with the L-band VLA D–array at 20 cm. Results. High spatial resolution and sensitivity in b...