2023MNRAS.519L..21K

Query : 2023MNRAS.519L..21K

2023MNRAS.519L..21K - Mon. Not. R. Astron. Soc., 519, L21-L25 (2023/February-2)

Bar formation in submaximal discs: a challenge for ΛCDM.

KASHFI T., ROSHAN M. and FAMAEY B.

Abstract (from CDS):

Bar formation in cosmological simulations of galaxy formation remains challenging. It was previously shown that the fraction of barred galaxies at low stellar masses (M* < 10^10.5 ^M⊙) in TNG50 is too low compared to the observations. Here, we highlight another tension, also observed at higher stellar masses, namely that barred galaxies in TNG50 appear to be maximal discs, in the sense that the majority of the gravitational acceleration is accounted for by baryons at the peak radius of the baryonic rotation curve, while observations account for a substantial fraction of barred submaximal discs. In this letter, we compare the barred fraction of submaximal discs in the local Universe from the SPARC catalogue with that in the TNG50 simulation. We show that, although SPARC tends to select against barred galaxies, the fraction of barred submaximal discs in this data set is significantly larger than in TNG50. This result adds to the list of challenges related to predicting the right statistics and properties of barred galaxies in ΛCDM simulations of galaxy formation.

Abstract Copyright: © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): galaxies: evolution - galaxies: disc - galaxies: bar - instabilities - dark matter

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NGC 1090 AG? 02 46 33.9359016984 -00 14 49.627749660   12.3   12.1 12.4 ~ 178 0

Query : 2023MNRAS.519L..21K

Basic data :
NGC 1090 -- Active Galaxy Nucleus Candidate
Other object types: otypes_help 		G (2008ApJ,6dFGS,...), IR (IRAS,ISOSS,...), AG? (2020MNRAS), * (Gaia), HI (HIPASS), Opt (SDSS)
ICRS coord. (ep=J2000) : 		02 46 33.9359016984 -00 14 49.627749660 (Optical) [ 18.8925 14.0297 90 ] C 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		02 44 00.4590233006 -00 27 22.378167364 [ 18.8925 14.0297 90 ]
Gal coord. (ep=J2000) : 		173.5090107418742 -51.4437978150845 [ 18.8925 14.0297 90 ]
Radial velocity / Redshift / cz : 		V(km/s) 2769.1 [~] / z(emission) 0.009280 [~] / cz 2782.01 [~]
   (Rad) C 2004MNRAS.350.1195M
Morphological type: 		SAB_a C 2019MNRAS.488..590B
Angular size (arcmin): 		3.87264 1.71636 100 (Opt) B 2023ApJS..269....3M
Fluxes (12) :
B 12.3 [~] D 2005MNRAS.361...34D
R 12.1 [~] D 2005MNRAS.361...34D
G 21.201229 [0.059510] C 2020yCat.1350....0G
I 12.4 [~] D 2005MNRAS.361...34D
J 10.080 [0.022] C 2006AJ....131.1163S
H 9.404 [0.026] C 2006AJ....131.1163S
K 9.197 [0.039] C 2006AJ....131.1163S
u (AB) 14.772 [0.006] C 2011yCat.2306....0A
g (AB) 12.3138 [0.0020] B 2023ApJS..269....3M
r (AB) 11.6420 [0.0021] B 2023ApJS..269....3M
i (AB) 11.813 [0.002] C 2011yCat.2306....0A
z (AB) 11.1140 [0.0023] B 2023ApJS..269....3M
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1
: 2 		: 1 Display criteria :

Identifiers (19) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NGC 1090 ISOSS J02465-0014 SDSS J024633.93-001449.7 Z 0244.0-0027
6dFGS gJ024633.9-001450 LEDA 10507 SDSS J024633.93-001449.8 Z 389-11
HIPASS J0246-00b 2MASX J02463391-0014493 TC 462 [SLK2004] 347
IRAS 02440-0027 MCG+00-08-011 UGC 2247 Gaia DR3 2498528406187837312
IRAS F02440-0027 PSCz Q02440-0027 UZC J024633.9-001450

References (178 between 1850 and 2026) (Total 178)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 11    Distance : 8   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : NGC 1090

Link by name to the catalogue in VizieR :

NGC 1090 HIPASS J0246-00b IRAS 02440-0027 IRAS F02440-0027 2MASX J02463391-0014493
SDSS J024633.93-001449.7 SDSS J024633.93-001449.8 UGC 2247 Gaia DR3 2498528406187837312

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