J/ApJ/636/721 Galaxy rotation curves (Brownstein+, 2006)
Galaxy rotation curves without nonbaryonic dark matter. Brownstein J.R., Moffat J.W. <Astrophys. J., 636, 721-741 (2006)> =2006ApJ...636..721B
ADC_Keywords: Galaxies, rotation ; Models Keywords: dark matter - galaxies: fundamental parameters - galaxies: general - galaxies: kinematics and dynamics Abstract: We apply the modified acceleration law obtained from Einstein gravity coupled to a massive skew-symmetric field Fµνλ to the problem of explaining galaxy rotation curves without exotic dark matter. Our sample of galaxies includes low surface brightness (LSB) and high surface brightness (HSB) galaxies and an elliptical galaxy. In those cases for which photometric data are available, a best fit via the single parameter (M/L)stars to the luminosity of the gaseous (HI plus He) and luminous stellar disks is obtained. In addition, a best fit to the rotation curves of galaxies is obtained in terms of a parametric mass distribution (independent of luminosity observations) - a two-parameter fit to the total galactic mass (or mass-to-light ratio M/L) and a core radius associated with a model of the galaxy cores - using a nonlinear least-squares fitting routine including estimated errors. The fits are compared to those obtained using Milgrom's phenomenological MOND model and to the predictions of the Newtonian/Kepler acceleration law. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 73 101 Galaxy properties of the complete sample table3.dat 104 101 Parametric rotation curve fit results
See also: VII/145 : Nearby Galaxies Catalogue (NBG) (Tully 1988) J/ApJ/598/260 : Satellites orbiting isolated galaxies (Prada+, 2003) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 9 A9 --- Name Galaxy name 11- 15 A5 --- MType Morphology type 17- 19 A3 --- SBType Surface brightness type (1) 21- 26 F6.3 10+10solLum BLum ? The B band luminosity (2) 28- 33 F6.3 10+10solLum KLum ? The K band luminosity (3) 35- 38 F4.1 kpc Rout Outermost observed radial position 40- 44 F5.1 km/s Vout Observed velocity at Rout 46- 49 F4.1 km/s e_Vout ? Uncertainty (or lower limit) in Vout 51- 54 F4.1 km/s E_Vout ? Upper uncertainty limit in Vout 56 A1 --- f_Vout [a] Flag on Vout (4) 58- 61 F4.1 Mpc Dist ? Distance (5) 63- 71 F9.6 --- z ? NED redshift 73 I1 --- Ref Primary original reference (6)
Note (1): Surface brightness type: LSB = central surface brightness is low (µ0≳23mag/arcsec2); HSB = central surface brightness is otherwise high. Note (2): Taken from the original references except for Sofue (1996ApJ...458..120S) and Romanowsky et al. (2003Sci...301.1696R) which are taken from Tully (1988, Cat. VII/145). Note (3): Converted from the 2MASS K-band apparent magnitude except for the Schombert F-type galaxies, which are taken from the original reference. Note (4): A "a" indicates error bars were not part of the available high resolution rotation curve data for this galaxy. Note (5): Adopted from the original references. Note (6): References, defined as follows: 1 = Begeman, Broeils & Sanders (1991MNRAS.249..523B); 2 = Sanders (1996ApJ...473..117S); 3 = de Blok & McGaugh (1998ApJ...469L..89D); 4 = Verheijen & Sancisi (2001, Cat. J/A+A/370/765); 5 = Sofue (1996ApJ...458..120S); 6 = Romanowsky (2003Sci...301.1696R).
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 28 A28 --- Group Galaxy grouping 30- 38 A9 --- Name Galaxy name 40 A1 --- f_Name [a] Flag on Name (1) 42- 46 F5.2 10+10solMass M(MSTG) MSTG predicted total galactic mass (2) 48- 51 F4.2 10+10solMass e_M(MSTG) Uncertainty in M(MSTG) 53- 56 F4.2 kpc R(MSTG) MSTG predicted core radius (2) 58- 61 F4.2 kpc e_R(MSTG) Uncertainty in R(MSTG) 63- 67 F5.1 km/s V(MSTG) MSTG predicted flat rotation velocity (2) 69- 72 F4.1 km/s e_V(MSTG) Uncertainty in V(MSTG) 74- 78 F5.2 10+10solMass M(MOND) MOND predicted galactic mass (3) 80- 83 F4.2 10+10solMass e_M(MOND) Uncertainty in M(MOND) 85- 88 F4.2 kpc R(MOND) MOND predicted core radius (3) 90- 93 F4.2 kpc e_R(MOND) Uncertainty in R(MOND) 95- 99 F5.1 km/s V(MOND) MOND predicted asymptotic velocity (3) 101-104 F4.1 km/s e_V(MOND) Uncertainty in V(MOND)
Note (1): A "a" indicates a MOND best fit was not possible due to <M/L>stars<0. The MOND fit shown for DDO154 neglects Mdisk, where as all the data was used for the MSTG result. Note (2): The metric-skew-tensor gravity (MSTG) is a generalization of Einstein's general relativity, based on a pseudo-Riemannian metric tensor and a skew-symmetric rank three tensor field Fµνλ. Note (3): MOND stands for Milgrom's modified Newtonian dynamics model.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 11-Sep-2006
|The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line|