J/PAZh/27/132 Parameters of RR Lyrae Type Variables (Dambis+, 2001)
Absolute Magnitudes and Kinematical Parameters of the Subsystem of
RR Lyrae Type Variables
Dambis A.K., Ratorguev A.S.
<Pis'ma Astron. Zh. 27, 132 (2001)>
=2001PAZh...27..132D 2001PAZh...27..132D
=2001AstL...27..108D 2001AstL...27..108D
ADC_Keywords: Stars, variable; Magnitudes, absolute; Proper motions
Abstract:
The method of statistical parallaxes is applied to a sample of 262
Rrab RR Lyr type variables with published photoelectric photometry,
radial velocities, abundances and with known absolute proper motions.
The proper motions are adopted from the Hipparcos, PPM, NPM1, and the
Four-Million Catalog (Volchkov et al. 1992, Ed. by A.P.Gulyaev and
V.V. Nesterov, Mosk. Gos. Univ., Moscow, p. 67) and in the case the
last three catalogs are reduced to the Hipparcos system.
The parameters of the velocity distribution of halo
(U0, V0, W0) = ( -9±12, -214±10, -16±7) km/s
and thick-disk
(U0, V0, W0) = (-16±8, -41±7, -18±5) km/s
RR Lyrae subsamples are inferred as well as the intensity-averaged
absolute magnitudes of the corresponding populations:
= 0.77±0.10 and = +1.11±0.28
for halo and thickdisk objects, respectively.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 214 262 Catalog of Parameters of RR Lyrae Stars
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See also:
II/214 : Combined General Catalogue of Variable Stars (Kholopov+ 1998)
I/146 : Positions and Proper Motions - North (Roeser+, 1988)
I/193 : Positions and Proper Motions - South (Bastian+ 1993)
I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)
I/199 : Lick Northern Proper Motion Program: NPM1 Catalog (Klemola+ 1987)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Name according to GCVS4 (Cat. II/214)
12- 13 I2 h RAh Right ascension (J2000.0)
15- 16 I2 min RAm Right ascension (J2000.0)
18- 23 F6.3 s RAs Right ascension (J2000.0)
25 A1 --- DE- Declination sign
26- 27 I2 deg DEd Declination (J2000.0)
29- 30 I2 arcmin DEm Declination (J2000.0)
32- 36 F5.2 arcsec DEs Declination (J2000.0)
39- 43 F5.2 mag Intensity-mean V magnitude
46 A1 --- r_ Source of photometry used to derive
the intensity-averaged V magnitude (1)
48 A1 --- n_ Remark on photometry source (2)
50- 53 F4.2 mag Av Total extinction in the V band
55 A1 --- r_Av Source of total extinction (3)
59- 64 F6.2 deg GLON Galactic longitude
69- 74 F6.2 deg GLAT Galactic latitude
77- 81 F5.4 d P Period
85- 89 F5.2 --- [Fe/H] Metallicity
91 A1 --- r_[Fe/H] Source of metallicity (4)
95- 98 I4 km/s Vsys Systemic radial velocity
100-101 I2 km/s e_Vsys Standard error of Vsys
103 A1 --- r_Vsys Source of Vsys (5)
106-110 F5.0 mas/yr pmRA-AC ?=9999. Proper motion in RA, J2000.0
according to AC/PPM
113-117 F5.0 mas/yr pmDE-AC ?=9999. Proper motion in DE, J2000.0
according to AC/PPM
119-123 F5.0 mas/yr pmRA-ACr ?=9999. Proper motion in RA, J2000.0
according to AC/PPM reduced to the
HIPPARCOS system
125-129 F5.0 mas/yr pmDE-ACr ?=9999. Proper motion in DE, J2000.0
according to AC/PPM reduced to the
HIPPARCOS system
132 I1 --- fl ? AC/PPM proper motion flag (6)
136-143 A8 --- NPM1 NPM1 identification
145-150 F6.1 mas/yr pmRA-NPM1 ?=9999.9 Proper motion in RA, J2000.0
according to NPM1
154-159 F6.1 mas/yr pmDE-NPM1 ?=9999.9 Proper motion in DE, J2000.0
according to NPM1
161-166 F6.1 mas/yr pmRA-NPM1r ?=9999.9 Proper motion in RA, J2000.0
according to NPM1 reduced to the
HIPPARCOS system
168-173 F6.1 mas/yr pmDE-NPM1r ?=9999.9 Proper motion in DE, J2000.0
according to NPM1 reduced to the
HIPPARCOS system
175 A1 --- Remark to NPM1 proper motions (7)
178-185 F8.2 mas/yr pmRA-HIP ?=99999.99 Proper motion in RA, J2000.0
according to HIPPARCOS
187-194 F8.2 mas/yr pmDE-HIP ?=99999.99 Proper motion in DE, J2000.0
according to HIPPARCOS
196-200 F5.2 mas/yr e_pmRA-HIP ?=99.99 Standard error of pmRA-HIP
203-207 F5.2 mas/yr e_pmDE-HIP ?=99.99 Standard error of pmDE-HIP
210-214 F5.2 --- corr ?=99.99 Coefficient of correlation
between e_pmRA-HIP and e_pmDE-HIP
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Note (1): Source of photometry used to derive the
intensity-averaged V magnitude:
a Fernley et al., 1998A&A...330..515F 1998A&A...330..515F
b Bookmeyer et al., 1977RMxAA...2..235B 1977RMxAA...2..235B
c Schmidt, 1991AJ....102.1766S 1991AJ....102.1766S
Schmidt et al., 1995AJ....109.1239S 1995AJ....109.1239S
d Schmidt & Seth, 1996AJ....112.2769S 1996AJ....112.2769S
e Layden, 1993, Ph.D. Dissertation
adopted from Layden, 1994AJ....108.1016L 1994AJ....108.1016L
f Layden, 1997PASP..109..524L 1997PASP..109..524L
g Clube & Dawe, 1980MNRAS.190..591C 1980MNRAS.190..591C adopted from
Layden, 1994AJ....108.1016L 1994AJ....108.1016L, and transformed to the
photometric system of Fernley et al., 1998A&A...330..515F 1998A&A...330..515F :
Ferley+ = (Clube,Dawe-0.146)/0.983
h Layden, 1994AJ....108.1016L 1994AJ....108.1016L
i Lub, 1977A&AS...29..345L 1977A&AS...29..345L
j Pena et al., 1990RMxAA..20..139P 1990RMxAA..20..139P
Note (2): Remark to intensity-average V magnitude source:
B: Converted from photoelectric B-magnitude data
c: Converted from recalibrated photographic photometry
p: Converted from photographic photometry, source unknown
Note (3): Source of total extinction:
a Fernley et al., 1998A&A...330..515F 1998A&A...330..515F
b Layden, 1996AJ....112.2110L 1996AJ....112.2110L
c Layden, 1994AJ....108.1016L 1994AJ....108.1016L
Note (4): Source of metallicity:
a Layden, 1996AJ....112.2110L 1996AJ....112.2110L
b Layden, 1994AJ....108.1016L 1994AJ....108.1016L
c Fernley et al., 1998A&A...330..515F 1998A&A...330..515F
transformed to the system of Layden (1994AJ....108.1016L 1994AJ....108.1016L):
[Fe/H]Layden = [Fe/H]{Fernley+} - 0.16
Note (5): Source of systemic radial velocity:
a Fernley et al., 1998A&A...330..515F 1998A&A...330..515F
b Solano et al., 1997A&AS..125..321S 1997A&AS..125..321S
c Layden, 1996AJ....112.2110
d Layden, 1994AJ....108.1016L 1994AJ....108.1016L
Note (6): AC/PPM proper motion flag:
1: PPM
2: AC
Note (7): Remark to NPM1 proper motions:
a The nonreduced data are corrected proper-motion components
adopted from Layden (1996AJ....112.2110L 1996AJ....112.2110L) and the
reduced data are computed using these components.
Individual notes:
The following stars were removed from the initial sample:
XZ CET: Fourier Coefficient R(21) is unusual - Anom. Ceph
(Fernley+, 1998A&A...330..515F 1998A&A...330..515F)
BX DRA: Ecl. Var. (Schmidt et al., 1995AJ..109.1239S)
(Fernley+, 1998A&A...330..515F 1998A&A...330..515F)
AR SER: Fourier Coefficient R(21) is unusual - Anom. Ceph
(Fernley+, 1998A&A...330..515F 1998A&A...330..515F)
BB VIR: Photometric evidence for HB Companion
(Fernley, 1993Obs...113..197F 1993Obs...113..197F)
Although ET Hya has constant radial velocity from spectra
and constant V mag from HIPPARCOS according to Fernley and Barnes
(1997A&AS..125..313F 1997A&AS..125..313F), this is in conflict with the results of all other
authors. The star must be misidentified in the HIPPARCOS input catalog
and therefore we do not use the HIPPARCOS data for it.
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(End) A. Dambis [GAISH], Veta Avedisova [INASAN] 29-May-2001