2023RNAAS...7..276M

Query : 2023RNAAS...7..276M

2023RNAAS...7..276M - Research Notes of the AAS, 7, 276 (2023/December-0)

Synthesis of the 4400-4600 Å Spectral Range for the A2.5V star HD 176687 (ζ Sagitarii A).

MONIER R.

Abstract (from CDS):

The synthesis of a high resolution high signal-to-noise spectrum of HD 176687 from 4400 to 4600 Å allows the determination of LTE abundances for magnesium, calcium, scandium, titanium, chromium, iron, nickel and barium. This A2.5V star has recently been found to be the most massive star in a triple system. Magnesium and calcium are found to have a solar abundance. Scandium and titanium are depleted by a factor of 0.50, chromium, nickel by a factor of 0.70 and iron by 0.60 compared to their respective solar abundances. Barium is overabundant by a factor of 7.50. The found abundances fit well within the abundance pattern previously found for a few normal A stars. There is no sign of the recently discovered companion to HD 176687 in the spectrum analyzed.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): A stars

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 * zet Sgr ** 19 02 36.73024 -29 52 48.2279   2.69 2.59     A2.5Va 181 0

Query : 2023RNAAS...7..276M

Basic data :
* zet Sgr -- Double or Multiple Star
Other object types: otypes_help 		* (*,CD,...), ** (CCDM,**,...), IR (IRAS,IRC), UV (TD1), NIR (2MASS), MIR (WISE)
ICRS coord. (ep=J2000) : 		19 02 36.73024 -29 52 48.2279 (Optical) [ 8.80 5.71 90 ] A 2007A&A...474..653V
FK4 coord. (ep=B1950 eq=1950) : 		18 59 25.81028 -29 57 13.0140 [ 8.80 5.71 90 ]
Gal coord. (ep=J2000) : 		006.84036729 -15.35356613 [ 8.80 5.71 90 ]
Proper motions mas/yr : 		10.79 21.11 [1.00 0.65 0] A 2007A&A...474..653V
Radial velocity / Redshift / cz : 		V(km/s) 24.70 [0.7] / z(~) 0.000082 [0.000002] / cz 24.70 [0.70]
   A 2006AstL...32..759G
Parallaxes (mas): 		36.98 [0.87] A 2007A&A...474..653V
Spectral type: 		A2.5Va C 2006AJ....132..161G
Angular size (arcmin): 		0.0100 0.0 252 (Opt) D 2001AJ....122.3466M
Fluxes (6) :
B 2.69 [0.01] D 2002A&A...384..180F
V 2.59 [0.01] D 2002A&A...384..180F
G 3.249335 [0.021528] C 2022yCat.1355....0G
J 2.319 [0.236] D 2003yCat.2246....0C
H 2.318 [0.200] D 2003yCat.2246....0C
K 2.293 [0.234] D 2003yCat.2246....0C
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Identifiers (41) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

CCDM J19026-2953AB GEN# +1.00176687 N30 4220 UBV 16147
* 38 Sgr GSC 06885-02837 NAME Ascella UBV M 23406
* zet Sgr HD 176687 PLX 4415 UCAC4 301-255103
** HDO 150 HIC 93506 PPM 269230 uvby98 100176687
** H 578AB HIP 93506 ROT 2706 WDS J19026-2953AB
ADS 11950 AB HR 7194 SAO 187600 WEB 16231
CD-30 16575 IDS 18562-3001 AB SKY# 35179 WISE J190236.60-295247.5
CPC 17 10347 IRAS 18594-2957 SRS 44082 Gaia DR3 6760703042771435136
CPD-30 5798 IRC -30399 TD1 23703
GC 26161 JP11 3063 TIC 30504485
GCRV 11482 2MASS J19023670-2952484 TYC 6885-2837-1

References (181 between 1850 and 2026) (Total 181)
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 : 6    Rot : 9    Fe/H : 2    Plx : 2    PM : 4    SpT : 8   

   

Observing logs
Herschel : 2    IUE : 3   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : * zet Sgr

Link by name to the catalogue in VizieR :

CCDM J19026-2953AB CD-30 16575 CPD-30 5798 GSC 06885-02837 HD 176687
HIC 93506 HIP 93506 HR 7194 IRAS 18594-2957 IRC -30399
2MASS J19023670-2952484 PLX 4415 PPM 269230 SAO 187600 TD1 23703
TYC 6885-2837-1 UCAC4 301-255103 uvby98 100176687 WDS J19026-2953AB WISE J190236.60-295247.5
Gaia DR3 6760703042771435136

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