1998A&AS..130..415G


C.D.S. - SIMBAD4 rel 1.7 - 2019.08.22CEST18:41:33

1998A&AS..130..415G - Astron. Astrophys., Suppl. Ser., 130, 415-419 (1998/June-2)

Contribution a l'etude de la binarite des etoiles de type Am. I. HD 125273, binaire spectroscopique a raies doubles (HD 125273, a double-lined spectroscopic binary).

GINESTET N. and CARQUILLAT J.-M.

Abstract (from CDS):

We present an observing program undertaken at Observatoire de Haute-Provence, for the search and study of spectroscopic binaries among Am stars. HD 125273 was recognized as an Am star some time ago (Olsen, 1980A&AS...39..205O, Abt, 1984pJ...285..247A) observations, carried out with the CORAVEL spectrovelocimeter, show that this star is a double-lined spectroscopic binary; its orbital elements are as follows: P=7.482664days; T=2448665.660JD; ω1=355.3°; e=0.071; K1=49.82km/s; K2=51.75km/s; V0=-17.42km/s; a1sini=5.113Gm; a2sini=5.311Gm; M1sin3i=0.412M; M2sin3i=0.396M. Stroemgren photometry of the star (Olsen, 1983A&AS...54...55O) permits us to estimate the following mean physical parameters for the components of the binary: Teff=7500K; logg=3.70; Mv=1.24; M=2.1M; R=3.2R, and to specify the evolutionary status of the system. Assuming the above mass for the components, we found i∼35° and a ∼26R. This system is thus a detached one without possibility of eclipses. It is likely that the two components are Am stars of very close characteristics. The vsini values, determined from the correlation dips given by CORAVEL, are near 11km/s for both components. We retain for this binary the hypothesis of rotation-revolution synchronism, because it leads to a value of the radius of the stars in agreement both with the above value and the results of a previous study by Kitamura & Kondo (1978Ap&SS..56..341K) of similar, but eclipsing, systems. The ratio of the correlation dip areas indicates a magnitude difference {DELTA}mv∼0.2mag. As expected in detached systems of main sequence stars, such as Am's, HD 125273 obeys the mass-luminosity law.

Abstract Copyright:

Journal keyword(s): stars: individual: HD 125273 - binaries: spectroscopic - 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 - 2019
#notes
1 HD 125273 SB* 14 16 44.7859435685 +53 15 48.811129960   8.13 7.85     A5 18 0

    Equat.    Gal    SGal    Ecl

C.D.S. - SIMBAD4 rel 1.7 - 2019.08.22CEST18:41:33

Available data : Basic data  •  Identifiers  •  Plot & images  •  Bibliography  •  Measurements  •  External archives  •  Notes  •  Annotations


Basic data :
HD 125273 -- Spectroscopic binary
Origin of the objects types :

(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases

Other object types:
* (HD,AG,...), SB* (Ref,SBC9), IR (2MASS)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : coordinates error major axis, minor axis (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) :
14 16 44.7859435685 +53 15 48.811129960 (Optical) [ 0.0242 0.0246 90 ] A 2018yCat.1345....0G
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : coordinates error major axis, minor axis (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) :
14 15 01.3232780866 +53 29 39.785077340 [ 0.0242 0.0246 90 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : coordinates error major axis, minor axis (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) :
097.5821223793109 +59.4630495675985 [ 0.0242 0.0246 90 ]
Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode"
  • pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr)
  • pm-dec : mu-dec (expressed in the ICRS system in mas/yr)
  • [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the proper motion reference
Proper motions mas/yr :
-13.956 -1.011 [0.045 0.048 90] A 2018yCat.1345....0G
Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode"
  • value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
    (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
  • [error] : error of the corresponding value displayed before
  • (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown)
  • quality : flag of quality ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the value's origin
Radial velocity / Redshift / cz :
V(km/s) -17.42 [0.09] / z(~) -0.000058 [0.000000] / cz -17.42 [0.09]
   A 2004A&A...424..727P
Syntax of parallax is : 'value quality [error] bibcode'
  • value : parallax value
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • [error] : mean error
  • bibcode : bibcode of the parallax reference
Parallaxes (mas):
3.1130 [0.0307] A 2018yCat.1345....0G
Spectral type is made of 3 parts: %coding is composed of 4 parts :
  • the spectral type, which is made of a temperature class, eventually a luminosity class (roman number) and/or spectral peculiarities;
  • a quality letter: A=best quality→E=worst quality, {� } =unknown quality %
  • a quality letter: A=best quality -> E=worst quality, {� } =unknown quality
  • bibcode : bibcode of the spectral type reference
Spectral type:
A5 D ~
Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z
  • (System) : may be AB (default is Vega)
  • flux-value : value of flux or magnitude
  • [error] : error value
  • quality : flag of quality of the flux value ( A=best quality -> E=worst quality, {� } =unknown quality)
  • MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4])
  • bibcode : bibcode of the flux reference
Fluxes (6) :
B 8.13 [0.02] D 2000A&A...355L..27H
V 7.85 [0.01] D 2000A&A...355L..27H
G 7.7924 [0.0003] C 2018yCat.1345....0G
J 7.286 [0.017] C 2003yCat.2246....0C
H 7.196 [0.024] C 2003yCat.2246....0C
K 7.188 [0.026] C 2003yCat.2246....0C
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The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (19) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

HD 125273 GSC 03859-00655 Renson 35770 uvby98 100125273
AG+53 945 HIC 69772 SAO 29079 YZ 53 4484
AGKR 12774 HIP 69772 SBC9 1635 Gaia DR2 1608222642535658880
BD+53 1704 2MASS J14164478+5315488 SKY# 26059 Gaia DR1 1608222638239421952
GEN# +1.00125273 PPM 34439 TYC 3859-655-1

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References (18 between 1850 and 2019) (Total 18)
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


distance : 1    velocities : 1    PM : 5    Fe_H : 4    PLX : 4   

   


External archives :

Link by name to the catalogue in VizieR :

HD 125273 AG+53 945 BD+53 1704 GSC 03859-00655 HIC 69772
HIP 69772 2MASS J14164478+5315488 PPM 34439 SAO 29079 TYC 3859-655-1
uvby98 100125273 Gaia DR2 1608222642535658880 Gaia DR1 1608222638239421952

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2019.08.22-18:41:33

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