Determining the SED of AN Ultraviolet Flare at the Centre of the Elliptical Galaxy NGC 4552

Details Determining the SED of AN Ultraviolet Flare at the Centre of the Elliptical Galaxy NGC 4552 Determining the SED of AN Ultraviolet Flare at the Centre of the Elliptical Galaxy NGC 4552

Jul 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995hst..prop.6309b&link_type=abstract

HST Proposal ID #6309

Other

Hst Proposal Id #6309 Agn

Scientific paper

Previous HST observations show that the otherwise normal ellipticalgalaxy NGC 4552, has a UV-bright flare in its nucleus thatbrightened in luminosity from 1991 to 1993 by over a factor of 7.The UV spectral energy distribution of the spike in 1993 isconsistent either with a thermal source or a wavelength-independentsource of UV flux. While we believe the best fitting model for thisflare is that of a star encountering the central black hole in aclose fly-by, other models (including that of a supernova) arepossible. To distinguish among the available models, we need dataonly HST can provide: a) What is the true SED of the flare?We require 0.25" angular resolution spectra, which we can onlyget by taking HST/FOS spectra. b) What is our best estimate of thespatial extent of the flare? HST/FOC observations give us thehighest possible spatial resolution images.

Affiliated with

Also associated with

No associations

Rating

Determining the SED of AN Ultraviolet Flare at the Centre of the Elliptical Galaxy NGC 4552 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 Determining the SED of AN Ultraviolet Flare at the Centre of the Elliptical Galaxy NGC 4552, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Determining the SED of AN Ultraviolet Flare at the Centre of the Elliptical Galaxy NGC 4552 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1172210