Herschel multi-band imaging of nearby Seyferts: testing the coexistence of AGN and starburst activity and the nature of the dusty torus

Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

We present results from a small program approved within the Herschel GT1 Announcement of Opportunity aimed to perform PACS and SPIRE imaging photometry in the 70, 100, 160, 250, 350 and 500 micron bands of a sample of 18 nearby Seyfert 1 and 2 galaxies. The goals of the project include: (a) Star formation in AGN hosts: AGN and starburst activities, being among the most energetic extragalactic processes, have been studied separately until the past decade, when evidence that the two phenomena are related and, most frequently, coexistent started to accumulate. The FIR peak of cold dust emission constitute a powerful tracer of star formation. However, the study of such an important feature in the innermost regions of nearby AGN hosts has been, until the advent of Herschel, seriously limited by the low spatial resolution and limited spectral coverage of the existing facilities. Our new data, given the unprecedented angular resolution and spectral coverage of the Herschel Space Observatory start to overcome this limitation, allowing us to probe the cold and very cold dust components across the galaxy and even in the nuclear and circum-nuclear regions. (b) Characterising the physical nature of AGN infrared emission: we are performing multi-component SED fitting (AGN, starburst and host galaxy), combining existing ground and space-based data from UV to MIR with Herschel FIR observations. The new, high resolution Herschel data are allowing us to unveil the nature of the dusty torus (e.g., clumpy vs. smooth, flared disc), breaking model degeneracies.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Herschel multi-band imaging of nearby Seyferts: testing the coexistence of AGN and starburst activity and the nature of the dusty torus does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Herschel multi-band imaging of nearby Seyferts: testing the coexistence of AGN and starburst activity and the nature of the dusty torus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Herschel multi-band imaging of nearby Seyferts: testing the coexistence of AGN and starburst activity and the nature of the dusty torus will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1563964

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.