J/MNRAS/410/735 MAG waves in magnetic and rotating stars (Campos, 2011)
On magnetoacoustic-gravity-inertial (MAGI) waves.
II. Application to magnetic and rotating stars.
Campos L.M.B.C.
<Mon. Not. R. Astron. Soc., 410, 735-761 (2011)>
=2011MNRAS.410..735C 2011MNRAS.410..735C
ADC_Keywords: Stars, nearby ; Magnetic fields
Keywords: waves - stars: atmospheres - stars: magnetic field - stars: rotation
Abstract:
The expression for the energy flux of magnetoacoustic-gravity-inertial
(MAGI) waves derived in the Part I (Campos, 2011MNRAS.410..717C 2011MNRAS.410..717C) of
the present paper is applied to the luminosity of stars, leading to
more than 60 relations between observable stellar quantities. Three of
these relations are compared with empirical data, viz. concerning
stellar luminosity or brightness compared with (i) magnetic field
strength for strong magnetic stars, (ii) rotation period for fast
rotating stars and (iii) mass and temperature for stars in general.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 41 23 Magnetic fields (Gauss) of non-degenerate stars
table4.dat 68 51 Magnetic field (Gauss) and rotation period (days)
of Ap stars
table5.dat 144 21 Observed and calculated data for strong
non-rotating magnetic stars
table6.dat 225 18 Observed and calculated data for fast
rotating magnetic stars
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Seq [1/23] Sequential number of the star
4- 9 I6 --- HD Star HD number
11- 13 F3.1 mag Vmag V magnitude
16- 20 I5 0.1mT Bmin Minimum magnetic field strength (Gauss)
22- 26 I5 0.1mT Bmax Maximum magnetic field strength (Gauss)
28- 31 F4.2 [0.1mT] log(Bmin) log of minimum magnetic field strength
33- 36 F4.2 [0.1mT] log(Bmax) log of maximum magnetic field strength
38- 41 F4.2 [Lsun] G ?=- Total brightness
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Seq [24/75] Sequential number of the star
4- 9 I6 --- HD Star HD number
11- 13 F3.1 mag Vmag V magnitude
15- 20 I6 0.1mT Bmin Minimum magnetic field strength (Gauss)
22- 26 I5 0.1mT Bmax Maximum magnetic field strength (Gauss)
28- 36 F9.5 s tau Rotation period τ
38- 41 F4.2 [0.1mT] log(Bmin) log of minimum magnetic field strength
43- 46 F4.2 [0.1mT] log(Bmax) log of maximum magnetic field strength
48- 54 F7.4 [s] log(tau) log of rotation period [log(τ)]
56- 58 F3.1 [Lsun] Gm ?=- Magnetic brightness
60- 64 F5.2 [Lsun] Gr ?=- Rotational brightness
65- 68 F4.1 [Lsun] G ?=- Total brightness
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Seq [0/23] Star sequential number (0 for Sun)
4- 6 F3.1 Msun M* Observed stellar mass
8- 15 E8.3 0.1mT Bsup Observed supremum of maximum and minimum (Gauss)
magnetic field in modulus
16- 20 F5.2 [Lsun] I Stellar intensity (Eq. 30)
22- 27 F6.3 [Lsun] G Stellar brightness (Eq. 31,34b)
29- 35 E7.3 K T Effective temperature (Eq. 38b)
37- 44 E8.4 10-7W L Luminostiy (Eq. 25,26b)
46- 53 E8.3 cm r Radius (Eq. 28)
55- 61 E7.3 dPa p Total pressure in dyn/cm2 (Eq. 51b)
63- 69 E7.3 g/cm2 rho Mass density (Eq. 57b)
71- 78 E8.3 g m Stellar mass (Eq. 138)
80- 87 E8.3 g/s MLR Stellar mass-loss rate, -dm/dt (Eq. 83,78a)
89- 95 E7.3 cm/s Vr Radial velocity (Eq. 87)
97-103 E7.3 cm/s c Sound speed (Eq. 108a)
105-111 E7.3 --- Mr Radial Mach number (Eq. 123a)
113-120 E8.4 cm/s a Alfven speed (Eq. 114a)
122-128 E7.3 --- Nr Radial Alfven number (Eq. 126a)
130-136 E7.3 cm/s u Magnetosonic wave speed (Eq. 121a)
138-144 E7.3 --- Qr Radial hydromagnetic number (Eq. 130d)
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Order [0/17] Order
4- 5 I2 --- Seq [28/73]?=- Star sequential number
7- 9 F3.1 Msun M* ?=- Observed stellar mass
11- 17 E7.3 0.1mT Bsup Observed supremum of maximum and minimum of
magnetic field in modulus (Gauss)
19- 26 F8.5 d tau Observed period τ
28- 32 F5.2 [Lsun] I Stellar intensity (Eq. 40)
34- 39 F6.3 [Lsun] G Stellar brightness (Eq. 31)
41- 47 E7.3 K T Effective temperature (Eq. 38b)
49- 56 E8.3 mW/m2 L Luminosity (Eq. 25,26b)
58- 65 E8.3 cm r Radius (Eq. 28)
67- 73 E7.3 dPa P Total pressure in dyn/cm2 (Eq. 51b)
75- 81 E7.3 g/cm3 rho Mass density (Eq. 57b)
83- 90 E8.3 g m Stellar mass (Eq. 138)
92- 99 E8.3 g/s MLR Stellar mass-loss rate, -dm/dt (Eq. 83,78a)
101-107 E7.3 cm/s Vr Radial velocity (Eq. 87)
109-115 E7.3 cm/s Vt Tangential velocity (Eq. 71b)
117-123 E7.3 cm/s V Total velocity (Eq. 93b)
125-128 F4.1 deg alpha Spiral angle with the radial direction (Eq. 101b)
130-136 E7.3 cm/s c Sound speed (Eq. 125a)
138-144 E7.3 --- Mr Radial Mach number (Eq. 125a)
146-152 E7.3 cm/s a Alfven speed (Eq. 125a)
154-160 E7.3 --- Nr Radial Alfven number(Eq. 125a)
162-168 E7.3 cm/s u Magnetosonic wave speed (Eq. 121a)
170-176 E7.3 --- Qr Radial hydromagnetic number (Eq. 128a)
178-184 E7.3 --- Mt Tangential Mach number (Eq. 122a)
186-192 E7.3 --- Nt Tangential Alfven number (Eq. 125a)
194-200 E7.3 --- Qt Tangential hydromagnetic number (Eq. 128a)
202-208 E7.3 --- M Total Mach number (Eq. 122a)
210-216 E7.3 --- N Total Alfven number (Eq. 125a)
218-225 E8.3 --- Q Total hydromagnetic number (Eq. 128a)
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History:
From electronic version of the journal
References:
Campos, Paper I 2011MNRAS.410..717C 2011MNRAS.410..717C
(End) Patricia Vannier [CDS] 15-Aug-2011