Planetary Camera observations of the M87 stellar cusp

Details Planetary Camera observations of the M87 stellar cusp Planetary Camera observations of the M87 stellar cusp

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aj....103..703l&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 103, March 1992, p. 703-710, 1024-1026.

Astronomy and Astrophysics

Astronomy

117

Black Holes (Astronomy), Elliptical Galaxies, Faint Object Camera, Hubble Space Telescope, Very Long Base Interferometry, Charge Coupled Devices, Emission Spectra, Spaceborne Photography, Stellar Luminosity

Scientific paper

Results are presented of an analysis of V- and I-band HST Planetary Camera images of the giant elliptical galaxy M87 which show that its central starlight distribution is consistent with the black hole 2.6 x 10 exp 9-solar-mass cup model proposed for M87 by Young et al. (1978). A combined approach of image deconvolution and modeling is used to investigate the starlight distribution into limiting radii of about 0.04 arcsec. The central structure of M87 is described by three components: a power-law starlight profile of the form mu(r) varies as r exp -1/4 for r of less than 3 arcsec, a central nonthermal point source, and optical counterparts of the jet knots N1 and M identified by VLBI observations.

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