Diffuse X-ray Emission in the Extended Disk of M33

Add to your list(s) Download to your calendar using vCal

• Richard Owen, University of Leicester
• Wednesday 16 September 2009, 16:30-16:45
• Sackler Lecture Theatre, IoA.

If you have a question about this talk, please contact Alexander Blustin.

We present results from a study of extended X-ray emission in M33 based on archival XMM -Newton observations. We investigate the spatial and spectral properties of diffuse X-ray emission in the inner galactic disk and explore the connection between this emission and recent star formation in the galaxy. We derive the X-ray to SFR ratio in the inner disk of M33 to be 4×10³⁹ (erg/sec)/(Msun/yr), consistent with results from a sample of nearby spiral galaxies. Comparison of the X-ray images with FUV and K band images shows the diffuse X-ray emission to be equally divided between two components: one strongly correlated with star formation in the inner spiral arms, the other more uniformly distributed across the galactic disk. We show this emission to be well modelled by a clumpy thin-disk distribution, with bubbles of hot gas tracing the spiral arms.

This talk is part of the New Results in X-ray Astronomy 2009 series.

This talk is included in these lists:

• Combined External Astrophysics Talks DAMTP
• Cosmology, Astrophysics and General Relativity
• Institute of Astronomy One-day Meetings
• Institute of Astronomy Talk Lists
• New Results in X-ray Astronomy 2009
• Sackler Lecture Theatre, IoA

Note that ex-directory lists are not shown.