2008A&A...491..531Z

Query : 2008A&A...491..531Z

2008A&A...491..531Z - Astronomy and Astrophysics, volume 491531-536 (2008/11-4)

The discovery of stellar oscillations in the K giant ι Draconis.

ZECHMEISTER M., REFFERT S., HATZES A.P., ENDL M. and QUIRRENBACH A.

Abstract (from CDS):

ι Dra (HIP 75458) is a well-known example of a K giant hosting a substellar companion. We present radial velocity measurements of this star from observations taken with three different instruments spanning nearly 8 years. They show more clearly that the RV period is long-lived and coherent thus supporting the companion hypothesis. The longer time baseline now allows for a more accurate determination of the orbit with a revised period of P=511d and an additional small linear trend, indicative of another companion in a wide orbit. Moreover we show that the star exhibits low amplitude, solar-like oscillations with frequencies around 3-4d–1 (34.7-46.3µHz).

Abstract Copyright: ∼

Journal keyword(s): stars: individual: ι Draconis - stars: planetary systems - stars: oscillations

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 * iot Dra V* 15 24 55.7738042889 +58 57 57.837111857 5.68 4.45 3.29 2.51 1.91 K2III 428 1

Query : 2008A&A...491..531Z

Basic data :
* iot Dra -- Variable Star
Other object types: otypes_help 		* (*,AG,...), ** (**,CCDM,...), IR (IRAS,IRC), RG* (2021ApJ), V* (NSV), UV (TD1), NIR (2MASS)
ICRS coord. (ep=J2000) : 		15 24 55.7738042889 +58 57 57.837111857 (Optical) [ 0.1428 0.1336 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		15 23 48.7541532309 +59 08 26.224653887 [ 0.1428 0.1336 90 ]
Gal coord. (ep=J2000) : 		093.9710685585444 +48.6277792315505 [ 0.1428 0.1336 90 ]
Proper motions mas/yr : 		-8.183 17.296 [0.166 0.167 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -10.912 [0.0010] / z(spectroscopic) -0.000036 [0.000000] / cz -10.91 [0.00]
   (Opt) A 2018A&A...616A...7S
Parallaxes (mas): 		32.5239 [0.1310] A 2020yCat.1350....0G
Spectral type: 		K2III B 1989ApJS...71..245K
Fluxes (9) :
U 5.68 [~] C 2002yCat.2237....0D
B 4.45 [~] C 2002yCat.2237....0D
V 3.29 [~] C 2002yCat.2237....0D
R 2.51 [~] C 2002yCat.2237....0D
G 2.972920 [0.003090] C 2022yCat.1355....0G
I 1.91 [~] C 2002yCat.2237....0D
J 1.293 [0.220] D 2003yCat.2246....0C
H 0.724 [0.146] C 2003yCat.2246....0C
K 0.671 [0.200] D 2003yCat.2246....0C
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 2 		Display criteria :

Identifiers (42) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

* iot Dra GSC 03875-01620 NSV 7077 UBV 13273
* 12 Dra HD 137759 PLX 3490 UBV M 20785
** BUP 162A HIC 75458 PLX 3490.00 uvby98 100137759
AG+59 999 HIP 75458 PMC 90-93 405 WDS J15249+5858A
BD+59 1654 HR 5744 PPM 34972 WEB 12868
CCDM J15250+5859A IRAS 15238+5908 ROT 2187 YZ 0 8366
DO 34945 IRC +60233 SAO 29520 [HFE83] 1103
FK5 571 JP11 2606 SKY# 27902 Gaia DR3 1614731957531452544
GC 20747 2MASS J15245578+5857577 TD1 18258 Gaia DR2 1614731957530945280
GCRV 8925 N30 3475 TIC 165722603
GEN# +1.00137759 NAME Edasich TYC 3875-1620-1

References (428 between 1850 and 2026) (Total 428)
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 : 18    Diameter : 2    Distance : 2    Rot : 5    Fe/H : 37    Plx : 5    PM : 7    SpT : 18   

   

Observing logs
ISO : 15    IUE : 3   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : * iot Dra

Link by name to the catalogue in VizieR :

AG+59 999 BD+59 1654 CCDM J15250+5859A DO 34945 FK5 571
GSC 03875-01620 HD 137759 HIC 75458 HIP 75458 HR 5744
IRAS 15238+5908 IRC +60233 2MASS J15245578+5857577 NSV 7077 PLX 3490
PPM 34972 SAO 29520 TD1 18258 TYC 3875-1620-1 uvby98 100137759
WDS J15249+5858A Gaia DR3 1614731957531452544 Gaia DR2 1614731957530945280

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