scholarly journals Kinematical data on early-type galaxies. I.

1997 ◽  
Vol 122 (3) ◽  
pp. 521-528 ◽  
Author(s):  
F. Simien ◽  
Ph. Prugniel
Keyword(s):  
Early Type ◽  
Kinematical Data

scholarly journals Kinematical data on early-type galaxies. VI.

2002 ◽  
Vol 384 (2) ◽  
pp. 371-382 ◽  
Author(s):  
F. Simien ◽  
Ph. Prugniel
Keyword(s):  
Early Type ◽  
Kinematical Data

scholarly journals Massive Elliptical Galaxies: BH Scouring or a Bottom-Heavy IMF?

2014 ◽  
Vol 10 (S311) ◽  
pp. 36-39
Author(s):  
Jens Thomas ◽  
Roberto Saglia ◽  
Ralf Bender ◽  
Peter Erwin ◽  
Maximilian Fabricius
Keyword(s):  
Dark Matter ◽  
Power Law ◽  
Milky Way ◽  
Elliptical Galaxies ◽  
Stellar Mass ◽  
Initial Mass Function ◽  
Early Type ◽  
Stellar Masses ◽  
Kinematical Data ◽  
The Imf

AbstractWe present indirect constraints on the stellar initial-mass-function (IMF) in nine massive elliptical galaxies with σ ≈ 300 km/s, via a comparison of dynamical and stellar-population based stellar masses. We use adaptive-optics assisted, high resolution kinematical data from the SINFONI Search for Supermassive Black Holes that allow us to constrain the dynamical stellar mass-to-light ratio in the very centre of each galaxy. Hence we measure the IMF in a galaxy region where the stellar mass dominates over dark matter, minimising any potential degeneracy between the two mass components. In six of our galaxies – those which have depleted stellar cores – we find an IMF consistent with the one measured in the Milky-Way via direct star counts. The three remaining, power-law galaxies have instead stellar masses about a factor of two times larger than expected from a Milky-Way type IMF, indicating either a more bottom-heavy IMF (like, e.g., the Salpeter IMF) or a dark-matter distribution that is degenerate with the stellar mass down to the very centres of these galaxies. The bottom-light IMF in our core galaxies is surprising in view of previous studies that suggested a systematic IMF variation where early-type galaxies with σ ≈ 300 km/s have a Salpeter or even more dwarf-dominated IMF. Core galaxies are particularly important since their unique central orbital structure offers an independent crosscheck for the dynamical models. Our models with a bottom-light IMF are consistent with the distribution of orbits predicted by SMBH-binary core-formation models. This indicates that spatially well resolved central kinematical data are important for determining unbiased dynamical stellar mass-to-light ratios. Our results imply either that the IMF in massive galaxies varies over a wider range than previously anticipated, and is not the same in core and power-law ellipticals, or else that there are systematic variations in the distribution of dark matter among massive early-type galaxies.

scholarly journals Kinematical data on early-type galaxies. IV.

1998 ◽  
Vol 131 (2) ◽  
pp. 287-290 ◽  
Author(s):  
F. Simien ◽  
Ph. Prugniel
Keyword(s):  
Early Type ◽  
Kinematical Data

scholarly journals Kinematical data on early-type galaxies. III.

1997 ◽  
Vol 126 (3) ◽  
pp. 519-523 ◽  
Author(s):  
F. Simien ◽  
Ph. Prugniel
Keyword(s):  
Early Type ◽  
Kinematical Data

scholarly journals Kinematical data on early-type galaxies. V.

2000 ◽  
Vol 145 (2) ◽  
pp. 263-267 ◽  
Author(s):  
F. Simien ◽  
Ph. Prugniel
Keyword(s):  
Early Type ◽  
Kinematical Data

A complete data base of kinematical data for early-type galaxies

1990 ◽  
Vol 13 (2) ◽  
pp. 525-528
Author(s):  
G. Busarello ◽  
F. Di Martino ◽  
G. Longo
Keyword(s):  
Data Base ◽  
Complete Data ◽  
Early Type ◽  
Kinematical Data

scholarly journals Kinematical data on early-type galaxies. II.

1997 ◽  
Vol 126 (1) ◽  
pp. 15-19 ◽  
Author(s):  
F. Simien ◽  
Ph. Prugniel
Keyword(s):  
Early Type ◽  
Kinematical Data

Some results of the Barbier-Chalonge-Divan system of stellar classification

1966 ◽  
Vol 24 ◽  
pp. 77-90 ◽  
Author(s):  
D. Chalonge
Keyword(s):  
Early Type ◽  
Parameter System ◽  
Early Type Stars ◽  
Two Parameter

Several years ago a three-parameter system of stellar classification has been proposed (1, 2), for the early-type stars (O-G): it was an improvement on the two-parameter system described by Barbier and Chalonge (3).

Two cases of bilateral cataracts in early type 1 diabetes

2019 ◽  
Author(s):  
Alice Lelliott ◽  
Supriyo Basu ◽  
Rachel Besser
Keyword(s):  
Type 1 Diabetes ◽  
Early Type

1561-P: Associations between ß-Cell Function and Cognitive Measures Differ in Youth vs. Adults with Impaired Glucose Tolerance (IGT) or Early Type 2 Diabetes (T2D)

Diabetes ◽  
2019 ◽  
Vol 68 (Supplement 1) ◽  
pp. 1561-P
Author(s):  
SUZANNE CRAFT ◽  
AMY CLAXTON ◽  
MARK TRIPPUTI ◽  
SHARON EDELSTEIN ◽  
SILVA A. ARSLANIAN ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Glucose Tolerance ◽  
Impaired Glucose Tolerance ◽  
Cell Function ◽  
Early Type ◽  
Cognitive Measures
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