2022RNAAS...6...69M

Query : 2022RNAAS...6...69M

2022RNAAS...6...69M - Research Notes of the AAS, 6, 69 (2022/April-0)

The Absence of Far UV Variability in the IUE Spectra of ξ Oct (HD 215573).

MONIER R.

Abstract (from CDS):

The analysis of high resolution SWP spectra obtained through the large aperture with the International Ultraviolet Explorer reveals that the far-ultraviolet flux of ξ Oct did not vary. In particular, the flux remained stable in a series of seven spectra taken consecutively over 3 hr and 24 minutes. This time interval is much shorter than the 1.78 days rotational period proposed for this star from its TESS lightcurve, which could explain for the absence of variability in the FUV. The comparison of the STIS spectrum of ξ Oct in the range 1300-1340 Å with synthetic spectra computed for the fundamental parameters of ξ Oct and a solar composition allows the identification of the strongest absorption features in the far-ultraviolet as due to resonance lines of O I, Si II and C II.

Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Pulsating variable 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 * ksi Oct Pu* 22 50 22.8139009656 -80 07 25.841844408 4.7 5.180 5.311     B6V 100 0

Query : 2022RNAAS...6...69M

Basic data :
* ksi Oct -- Pulsating Variable
Other object types: otypes_help 		* (*,ALS,...), Pu* (2019ApJ), V* (V*), UV (TD1), NIR (2MASS)
ICRS coord. (ep=J2000) : 		22 50 22.8139009656 -80 07 25.841844408 (Optical) [ 0.0617 0.0550 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		22 45 48.5009662639 -80 23 18.834506023 [ 0.0617 0.0550 90 ]
Gal coord. (ep=J2000) : 		309.0291552370189 -35.5259481274262 [ 0.0617 0.0550 90 ]
Proper motions mas/yr : 		20.003 -12.607 [0.082 0.076 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 22.10 [0.5] / z(~) 0.000074 [0.000002] / cz 22.10 [0.50]
   A 2006AstL...32..759G
Parallaxes (mas): 		6.3500 [0.0644] A 2020yCat.1350....0G
Spectral type: 		B6V C 1977A&AS...30...71C
Fluxes (7) :
U 4.7 [~] D 2003AJ....125.2531R
B 5.180 [0.014] D 2000A&A...355L..27H
V 5.311 [0.009] D 2000A&A...355L..27H
G 5.295854 [0.002900] C 2022yCat.1355....0G
J 5.668 [0.044] C 2003yCat.2246....0C
H 5.649 [0.027] C 2003yCat.2246....0C
K 5.650 [0.020] C 2003yCat.2246....0C
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Identifiers (29) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

* ksi Oct GSC 09484-01164 ROT 3315 uvby98 100215573
ALS 15070 HD 215573 SAO 258946 V* ksi Oct
CD-80 828 HIC 112781 SKY# 43395 WEB 20092
CPC 22 2855 HIP 112781 TD1 29329 Gaia DR2 6351882320090933248
CPD-80 1055 HR 8663 TIC 280684074 Gaia DR3 6351882320090933248
GC 31821 2MASS J22502283-8007257 TYC 9484-1164-1
GCRV 14323 N30 5021 UBV 19503
GEN# +1.00215573 PPM 378777 UBV M 26600

References (100 between 1850 and 2026) (Total 100)
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 : 4    Distance : 3    Rot : 1    Fe/H : 4    Plx : 5    PM : 6    SpT : 3   

   

Observing logs
IUE : 22   

   

External archives :

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

Link by name to the catalogue in VizieR :

ALS 15070 CD-80 828 CPD-80 1055 GSC 09484-01164 HD 215573
HIC 112781 HIP 112781 HR 8663 2MASS J22502283-8007257 PPM 378777
SAO 258946 TD1 29329 TYC 9484-1164-1 uvby98 100215573 V* ksi Oct
Gaia DR2 6351882320090933248 Gaia DR3 6351882320090933248

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