2011AJ....141..118K

Query : 2011AJ....141..118K

2011AJ....141..118K - Astron. J., 141, 118 (2011/April-0)

A method for the simultaneous estimation of atmospheric parameters using the photometric indices in the uvby color system.

KIM C. and MOON B.-K.

Abstract (from CDS):

A new method was developed to estimate the effective temperature, surface gravity, and metallicity of cool stars using only photometric indices in the uvby color system. In a graphical method, Teff and log g were determined for all of the different values of [Fe/H] using model atmosphere grids with respect to (b - y):c1 and (b - y):m1pair indices. Then, a three-dimensional figure where X-, Y-, and Z-axes correspond to Teff, log g, and [Fe/H] was produced. By reading an intersection of two curves formed by a connection of three parameters obtained from the (b - y):c1 and (b - y):m1pair indices on each of the three projected planes, Teff, log g, and [Fe/H] were determined simultaneously. In addition, an analytical method was devised based on the same algorithm developed for the graphical method. The new method was applied to a number of field dwarfs and giants, and the results were compared with those from a spectroscopic method and other photometric calibrations.

Abstract Copyright: ∼

Journal keyword(s): stars: atmospheres - stars: fundamental parameters

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 HD 55496 Pe* 07 12 11.3776089792 -22 59 00.613074804   9.30 8.40     CEMP-s 81 1

Query : 2011AJ....141..118K

Basic data :
HD 55496 -- Chemically Peculiar Star
Other object types: otypes_help 		* (HD,BD,...), Pe* (2021A&A,MFU), RG* (2021ApJ), SB? (2021A&A), NIR (2MASS)
ICRS coord. (ep=J2000) : 		07 12 11.3776089792 -22 59 00.613074804 (Optical) [ 0.0090 0.0151 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		07 10 04.5009783514 -22 53 53.926104005 [ 0.0090 0.0151 90 ]
Gal coord. (ep=J2000) : 		235.7352103826333 -05.9672147290500 [ 0.0090 0.0151 90 ]
Proper motions mas/yr : 		19.836 -12.346 [0.011 0.019 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 316.21 [0.16] / z(spectroscopic) 0.001055 [0.000001] / cz 316.38 [0.16]
   (Opt) A 2018yCat.1345....0G
Parallaxes (mas): 		2.0975 [0.02] A 2020yCat.1350....0G
Spectral type: 		CEMP-s C 2021A&A...645A..61K
Fluxes (6) :
B 9.30 [~] E ~
V 8.40 [~] E ~
G 8.106745 [0.002758] C 2020yCat.1350....0G
J 6.590 [0.032] C 2003yCat.2246....0C
H 6.043 [0.040] C 2003yCat.2246....0C
K 5.931 [0.016] C 2003yCat.2246....0C
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Identifiers (20) :
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HD 55496 GSC 06524-00876 PPM 251859 YZ 112 4586
BD-22 1749 HIC 34795 SAO 173188 [L91b] 113
CD-22 4169 HIP 34795 TIC 99242079 Gaia DR2 2927925629997822336
CPD-22 1866 2MASS J07121137-2259005 TYC 6524-876-1 Gaia DR3 2927925629997822336
GEN# +1.00055496 MFU 44 uvby98 100055496 Gaia DR1 2927925625691026944

References (81 between 1850 and 2026) (Total 81)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 3    Distance : 2    Fe/H : 11    Plx : 5    PM : 4    SpT : 3   

   

Observing logs
IUE : 1   

   

External archives :

Link by name to the catalogue in VizieR :

HD 55496 BD-22 1749 CD-22 4169 CPD-22 1866 GSC 06524-00876
HIC 34795 HIP 34795 2MASS J07121137-2259005 PPM 251859 SAO 173188
TYC 6524-876-1 uvby98 100055496 [L91b] 113 Gaia DR2 2927925629997822336 Gaia DR3 2927925629997822336
Gaia DR1 2927925625691026944

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