2002A&A...385..431R


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.25CET10:45:36

2002A&A...385..431R - Astronomy and Astrophysics, volume 385, 431-453 (2002/4-2)

Discrete dynamical classes for galaxy discs and the implication of a second generation of Tully-Fisher methods.

ROSCOE D.F.

Abstract (from CDS):

In Roscoe (1999A&A...343..697R), it was described how the modelling of a small sample of optical rotation curves (ORCs) given by Rubin et al. (1980ApJ...238..471R) with the power-law Vrot=ARα, where where the parameters (A,α) vary between galaxies, raised the hypothesis that the parameter A (considered in the form ln A) had a preference for certain discrete values. This specific hypothesis was tested in that paper against a sample of 900 spiral galaxy rotation curves measured by Mathewson et al. (1992ApJS...81..413M), but folded by Persic & Salucci (1995ApJS...99..501P), and was confirmed on this large sample with a conservatively estimated upper bound probability of 10–7 against it being a chance effect. In this paper, we begin by reviewing the earlier work, and then describe the analyses of three additional samples; the first of these, of 1200+ Southern sky ORCs, was published by Mathewson & Ford (1996), the second, of 497 Northern sky ORCs, is a composite sample provided by kind permission of Giovanelli & Haynes published in the sequence of papers Dale et al. (1997AJ....114..455D, 1998AJ....115..418D, 1999AJ....118.1468D) and Dale & Uson (2000AJ....120..552D), whilst the third, of 305 Northern sky ORCs, was published by Courteau (1997AJ....114.2402C). These analyses provide overwhelmingly compelling confirmation of what was already a powerful result. Apart from other considerations, the results lead directly to what can be described as a ``second generation of Tully-Fisher methods''. We give a brief discussion of the further implications of the result.

Abstract Copyright:

Journal keyword(s): galaxies: general - galaxies: fundamental parameters - galaxies: spiral - galaxies: evolution

Simbad objects: 12

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Number of rows : 12

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 701 GiG 01 51 03.848 -09 42 09.32   12.8   11.59 12.6 ~ 161 0
2 NGC 1035 EmG 02 39 29.136 -08 08 01.11   12.89   13.0 12.6 ~ 162 1
3 UGC 3691 G 07 08 01.276 +15 10 42.36   13.4       ~ 69 0
4 IC 467 GiP 07 30 18.400 +79 52 20.99   12.7       ~ 115 0
5 NGC 2816 GiG 09 07 33.5756942631 +60 28 45.833349310   12.0       ~ 183 0
6 NGC 3495 GiG 11 01 16.168 +03 37 40.93   13.10       ~ 135 0
7 NGC 3672 EmG 11 25 02.476 -09 47 43.44   11.9   10.80 11.6 ~ 173 0
8 NGC 4062 EmG 12 04 03.8088012817 +31 53 44.492255334   11.90 11.21 10.62 10.03 ~ 240 0
9 M 100 AGN 12 22 54.9318850854 +15 49 20.294302163 10.04 10.05 9.35     ~ 1673 2
10 NGC 4605 GiG 12 39 59.381 +61 36 33.09   10.94   10.35   ~ 291 2
11 NGC 4682 GiG 12 47 15.487 -10 03 48.45   12.9   11.97 12.6 ~ 88 0
12 NGC 7541 GiP 23 14 43.857 +04 32 02.04   12.7       ~ 296 1

    Equat.    Gal    SGal    Ecl

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2020.11.25-10:45:36

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