2012MNRAS.426.2089R

Query : 2012MNRAS.426.2089R

2012MNRAS.426.2089R - Mon. Not. R. Astron. Soc., 426, 2089-2106 (2012/November-1)

Radial migration in disc galaxies - I. Transient spiral structure and dynamics.

ROSKAR R., DEBATTISTA V.P., QUINN T.R. and WADSLEY J.

Abstract (from CDS):

We seek to understand the origin of radial migration in spiral galaxies by analysing in detail the structure and evolution of an idealized, isolated galactic disc. To understand the redistribution of stars, we characterize the time evolution of properties of spirals that spontaneously form in the disc. Our models unambiguously show that in such discs, single spirals are unlikely, but that a number of transient patterns may coexist in the disc. However, we also show that while spirals are transient in amplitude, at any given time the disc favours patterns of certain pattern speeds. Using several runs with different numerical parameters we show that the properties of spirals that occur spontaneously in the disc do not sensitively depend on resolution. The existence of multiple transient patterns has large implications for the orbits of stars in the disc, and we therefore examine the resonant scattering mechanisms that profoundly alter angular momenta of individual stars. We confirm that the corotation scattering mechanism described by Sellwood & Binney is responsible for the largest angular momentum changes in our simulations.

RCUK Fellow.

Journal keyword(s): galaxies: evolution - galaxies: formation - galaxies: kinematics and dynamics - galaxies: spiral - galaxies: structure

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 4244	GiG	12 17 29.659	+37 48 25.60		10.71		9.99		~	582	1

Query : 2012MNRAS.426.2089R

Basic data :

NGC 4244 -- Galaxy towards a Group of Galaxies

G (2014AJ,AGC,...), GiG (2007ApJ,[CHM2007]), IR (IRAS,ISOSS), AG? (2020MNRAS), X (2E), HI ([KOV2009]), Opt (SDSS)

12 17 29.659 +37 48 25.60 (Infrared) [ ] C 2006AJ....131.1163S

12 14 59.592 +38 05 05.11 [ ]

154.567616 +77.157096 [ ]

V(km/s) 245 [~] / z(spectroscopic) 0.000818 [~] / cz 245.10 [~] (Rad) D 2020ApJ...902..145K

S C 2019MNRAS.488..590B

19.0689 2.72876 47 (Opt) B 2023ApJS..269....3M

B (AB) 10.71 [0.03] C 2014MNRAS.445..881C

R (AB) 9.99 [0.03] C 2014MNRAS.445..881C

J 8.564 [0.027] C 2006AJ....131.1163S

H 7.978 [0.033] C 2006AJ....131.1163S

K 7.724 [0.046] C 2006AJ....131.1163S

u (AB) 13.940 [0.006] C 2009ApJS..182..543A

g (AB) 10.1274 [0.0011] B 2023ApJS..269....3M

r (AB) 9.5765 [0.0011] B 2023ApJS..269....3M

i (AB) 11.689 [0.002] C 2009ApJS..182..543A

z (AB) 9.4031 [0.0013] B 2023ApJS..269....3M

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`NGC 4244`	`ISOSS J12173+3747`	`SDSS J121729.43+374826.4`	`[CHM2007] HDC 706 J121729.65+3748255`
`AGC 29932`	`LEDA 39422`	`TC 777`	`[CHM2007] LDC 867 J121729.65+3748255`
`2E 2636`	`LJHY 32`	`UGC 7322`	`[KOV2009] 69`
`2E 1214.4+3800`	`2MASX J12172965+3748255`	`UZC J121729.0+374819`	`[M98c] 121459.9+380506`
`FGC 1402`	`MCG+06-27-045`	`Z 1215.0+3805`	`[SLK2004] 679`
`IRAS F12149+3805A`	`RFGC 2245`	`Z 187-35`	`[VDD93] 152`

References (582 between 1850 and 2026) (Total 582)
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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Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : NGC 4244

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`NGC 4244`	`2E 2636`	`FGC 1402`	`IRAS F12149+3805A`	`2MASX J12172965+3748255`
`RFGC 2245`	`SDSS J121729.43+374826.4`	`UGC 7322`

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