2016MNRAS.456..692M


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.17CEST03:56:12

2016MNRAS.456..692M - Mon. Not. R. Astron. Soc., 456, 692-709 (2016/February-2)

Establishing the level of cylindrical rotation in boxy/peanut bulges.

MOLAEINEZHAD A., FALCON-BARROSO J., MARTINEZ-VALPUESTA I., KHOSROSHAHI H.G., BALCELLS M. and PELETIER R.F.

Abstract (from CDS):

We present SAURON integral-field observations of a sample of 12 mid-to-high-inclination disc galaxies, to unveil hidden bars on the basis of their kinematics, i.e. the correlation between velocity and h3 profiles, and to establish their degree of cylindrical rotation. For the latter, we introduce a method to quantify cylindrical rotation that is robust against inner disc components. We confirm high levels of cylindrical rotation in boxy/peanut bulges, but also observe this feature in a few galaxies with rounder bulges. We suggest that these are also barred galaxies with end-on orientations. Re-analysing published data for our own Galaxy using this new method, we determine that the Milky Way bulge is cylindrically rotating at the same level as the strongest barred galaxy in our sample. Finally, we use self-consistent three-dimensional N-body simulations of bar-unstable discs to study the dependence of cylindrical rotation on the bar's orientation and host galaxy inclination.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): Galaxy: bulge - Galaxy: kinematics and dynamics - galaxies: bulges - galaxies: kinematics and dynamics - galaxies: spiral

Simbad objects: 16

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Number of rows : 16

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NGC 678 GiP 01 49 24.859 +21 59 50.28   13.3       ~ 96 0
2 NGC 4565 LIN 12 36 20.804 +25 59 14.61   13.61 12.43     ~ 893 0
3 NGC 5326 GiP 13 50 50.713 +39 34 29.69   12.9   11.38   ~ 80 0
4 NGC 5422 GiG 14 00 42.063 +55 09 52.12   13.1       ~ 144 0
5 NGC 5475 GiG 14 05 12.4048669713 +55 44 30.678096772   13.4       ~ 89 0
6 NGC 5689 GiP 14 35 29.670 +48 44 29.37   12.7       ~ 117 0
7 NGC 5707 GiP 14 37 30.7760807214 +51 33 42.559635505   13.3       ~ 74 0
8 NGC 5746 GiP 14 44 56.005 +01 57 17.06   12.3       ~ 329 0
9 NGC 5838 GiP 15 05 26.272 +02 05 57.68   12.1   10.26   ~ 224 0
10 NGC 5965 LIN 15 34 02.286 +56 41 08.47   13.4       ~ 108 0
11 NGC 6010 G 15 54 19.1558706937 +00 32 34.947185274   13.3       ~ 76 0
12 NAME Galactic Center gam 17 45 39.60213 -29 00 22.0000           ~ 12183 0
13 NGC 7332 GiP 22 37 24.522 +23 47 54.06   12.0       ~ 358 0
14 NGC 7457 G 23 00 59.9274269967 +30 08 41.794468187   11.04 11.87     ~ 413 0
15 NAME Local Group GrG ~ ~           ~ 7264 0
16 NAME Galactic Bulge reg ~ ~           ~ 3581 0

    Equat.    Gal    SGal    Ecl

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2021.05.17-03:56:12

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