The Starburst - AGN Connection: The Nature of the UV-bright Core in NGC 4303

Details The Starburst - AGN Connection: The Nature of the UV-bright Core in NGC 4303 The Starburst - AGN Connection: The Nature of the UV-bright Core in NGC 4303

Jul 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000hst..prop.8665c&link_type=abstract

HST Proposal ID #8665

Computer Science

Hst Proposal Id #8665 Agn/Quasars

Scientific paper

NGC 4303 is to date the best example of the claimed starburst- AGN connection in active galaxies. HST images of NGC 4303 have unveiled the existence of a nuclear mini-bar {250 pc in size}, centered on the unresolved {size <= 8 pc} UV-bright core, itself connected with a star-forming mini-spiral {radius 250 pc}. The spiral consist of compact clusters {size <= 15 pc} of young stars {5-25 Myrs}. The UV-bright core is classified as a Seyfert 2 AGN but its UV luminosity and optical properties are also compatible with the existence of a young { 4 Myr} massive { 10^5 M_odot} cluster of stars. We propose to obtain STIS UV spectra of the unresolved core and the brightest knots in the star-forming mini-spiral of NGC 4303. The spectra will be combined with multifrequency data and evolutionary spectral synthesis models to: {1} pin down the nature of the UV-bright core, i.e. AGN versus young massive stellar cluster, {2} quantify the AGN and starburst energy contribution, {3} determine the age and mass of the star-forming knots, and {4} establish an evolutionary sequence of events within the bar - starburst - AGN scenario. The detection of signatures of massive stars in the spectrum of the core of NGC 4303, would demonstrate for the first time ever that a compact {<= 8 pc} massive stellar cluster is located at the core of a Seyfert 2 galaxy and is, perhaps, its dominant energy source.

Affiliated with

Also associated with

No associations

Rating

The Starburst - AGN Connection: The Nature of the UV-bright Core in NGC 4303 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 The Starburst - AGN Connection: The Nature of the UV-bright Core in NGC 4303, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Starburst - AGN Connection: The Nature of the UV-bright Core in NGC 4303 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1720349