English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The residuals about the standard M-sigma relation correlate with theeffective radius, absolute magnitude, and Sersic index of the host bulge -although, it is noted here that the elliptical galaxies do not partake in suchcorrelations. Moreover, it is revealed that barred galaxies (with theirrelatively small, faint, and low stellar concentration bulges) can deviate fromthe M-sigma relation by delta(log M) = -0.5 to -1.0 dex (in the sense thattheir sigma values are too large) and generate much of the aforementionedcorrelations. Removal of the seven barred galaxies from the Tremaine et al. setof 31 galaxies results in a ``barless M-sigma'' relation with an intrinsicscatter of 0.17 dex (cf. 0.27 dex for the 31 galaxies) and a total scatter of0.25 dex (cf. 0.34 dex for the 31 galaxies). The introduction of thirdparameters does not reduce the scatter of the barless M-sigma relation.Furthermore, removal of the barred galaxies, or all the disk galaxies, from anexpanded and updated set of 40 galaxies with reliable black hole massmeasurements gives a consistent result, such that log(M_bh/M_sun) =(8.25+/-0.05) + (3.68+/-0.25)log [sigma/200].  The "barless" sigma-L relation for galaxies with black hole mass measurementsis found to be consistent with that from the SDSS sample of early-typegalaxies. In addition, the barless M-sigma relation, the M-L relation, and theM-n relation are all shown to yield SMBH masses less than 2-4 x 10^9 M_sun.

Fundamental Planes, and the "barless" M-sigma relation, for supermassive black holes