Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...244l...1j&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 244, no. 1, April 1991, p. L1-L4.
Astronomy and Astrophysics
Astronomy
14
Active Galactic Nuclei, Astronomical Photometry, Calcium, Line Spectra, Near Infrared Radiation, Virgo Galactic Cluster, Black Holes (Astronomy), Seyfert Galaxies
Scientific paper
Near-IR CaII photometric and kinematic observations of the core of M87 are reported. It is found that, contrary to what has previously been observed at blue-visual wavelengths, the velocity width of the CaII lines shows a marked increase within the central 3 arcsec to a value of about 460 km/s. The equivalent width of the CaII lines is also observed to show an increase in this area to a value which is comparable to the highest found among Seyfert and normal galaxies. These results provide strong evidence for the presence of a massive young cluster in the center of M87. The data imply a mass of over a billion solar masses for the cluster and a mass to light ratio, M/Lv about 60 solar units, a value which is not unexpected if the cluster formed out of gas from a high pressure cooling flow.
Jarvis Brian J.
Melnick Jorge
No associations
LandOfFree
The nucleus of M87 - Starburst or monster? 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 nucleus of M87 - Starburst or monster?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The nucleus of M87 - Starburst or monster? will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1787326