2002A&A...393..453B


Query : 2002A&A...393..453B

2002A&A...393..453B - Astronomy and Astrophysics, volume 393, 453-460 (2002/10-2)

MOND rotation curves for spiral galaxies with Cepheid-based distances.

BOTTEMA R., PESTANA J.L.G., ROTHBERG B. and SANDERS R.H.

Abstract (from CDS):

Rotation curves for four spiral galaxies with recently determined Cepheid-based distances are reconsidered in terms of modified Newtonian dynamics (MOND). For two of the objects, NGC 2403 and NGC 7331, the rotation curves predicted by MOND are compatible with the observed curves when these galaxies are taken to be at the Cepheid distance. For NGC 3198, the largest distance for which reasonable agreement is obtained is 10% smaller than the Cepheid-based distance; i.e., MOND clearly prefers a smaller distance. This conclusion is unaltered when new near-infrared photometry of NGC 3198 is taken as the tracer of the stellar mass distribution. For the large Sb spiral, NGC 2841, MOND requires a distance which is at least 20% larger than the Cepheid-based distance. However, the discrepancy of the Tully-Fisher and SNIa distances with the Cepheid determination casts some doubt upon the Cepheid method in this case.

Abstract Copyright:

Journal keyword(s): galaxies: individual: NGC 3198, NGC 2841 - galaxies: kinematics and dynamics - galaxies: spiral

Simbad objects: 6

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Number of rows : 6
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 NGC 2403 AGN 07 36 51.3381434280 +65 36 09.650825640 9.31 8.84 8.38 8.19   ~ 1791 1
2 SN 1957A SN* 09 21 51.2 +50 59 52   14.6       SNIapec 49 1
3 SN 1999by SN* 09 21 52.07 +51 00 06.6   13.66       SNIap 293 1
4 NGC 2841 LIN 09 22 02.6778711696 +50 58 35.737082868 10.43 10.09 9.22     ~ 1073 1
5 NGC 3198 EmG 10 19 54.990 +45 32 58.88 10.83 10.87 10.33     ~ 906 1
6 NGC 7331 LIN 22 37 04.0506038088 +34 24 56.800076508 10.65 10.35 9.48     ~ 1228 2

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