CDS

2005A&A...435L...1M

C.D.S. - SIMBAD4 rel 1.7 - 2021.03.08CET20:44:18

2005A&A...435L...1M - Astronomy and Astrophysics, volume 435, L1-4 (2005/5-3)

Discovery of Solar Rieger periodicities in another star.

MASSI M., NEIDHOEFER J., CARPENTIER Y. and ROS E.

Abstract (from CDS):

The Rieger periods are solar cycles with a time scale of months, which are present in both flaring activity and sunspot occurrence. These short-term periodicities, tentatively explained by equatorially trapped Rossby-type waves modulating the emergence of magnetic flux at the surface, are considered a peculiar and not yet fully understood solar phenomenon. We chose a stellar system with solar characteristics, UX Arietis, and performed a timing analysis of two 9-year datasets of radio and optical observations. The analysis reveals a 294-day cycle. When the two 9-year datasets are folded with this period, a synchronization of the peak of the optical light curve (i.e., the minimum spot coverage) with the minimum radio flaring activity is observed. This close relationship between two completly independent curves makes it very likely that the 294-day cycle is real. We conclude that the process invoked for the Sun of a periodical emergence of magnetic flux may also be applied to UX Arietis and can explain the cyclic flaring activity triggered by interactions between successive cyclic emergences of magnetic flux.

Abstract Copyright: ∼

Journal keyword(s): stars: individual: UX Arietis - radio continuum: stars - stars: flare - Sun: 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 - 2021 		#notes
1 V* UX Ari RS* 03 26 35.3764089427 +28 42 54.211100955 7.76 7.28 6.37     K0IV 668 0

    Equat.    Gal    SGal    Ecl

C.D.S. - SIMBAD4 rel 1.7 - 2021.03.08CET20:44:18

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

Basic data :
V* UX Ari -- Variable of RS CVn type
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,...), X (3A,AT,...), SB* (2008AJ,CABS,...), ** (2002A&A,**,...), Rad (BWE,87GB,...), UV (2EUVE,EUVE,...), RS* (2009yCat), V* (2012ApJ,V*), IR (IRAS,2MASS), CV* (2013ApJS)
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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (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) : 		03 26 35.3764089427 +28 42 54.211100955 (Optical) [ 0.2157 0.1572 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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (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) : 		03 23 33.0235588720 +28 32 32.397975108 [ 0.2157 0.1572 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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (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) : 		159.5487590068159 -22.9125763725129 [ 0.2157 0.1572 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 : 		41.65 -104.03 [0.73 0.63 0] A 2007A&A...474..653V
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) 50.740 [0.35] / z(spectroscopic) 0.000169 [0.000001] / cz 50.74 [0.35]
   (Opt) A 2018A&A...615A..31D
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): 		19.8129 [0.2281] 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: 		K0IV C 2009A&ARv..17..251S
Syntax of angular size is : "maj-axis min-axis angle (wtype) quality bibcode"
  • maj-axis : major axis size (arc minutes)
  • min-axis : minor axis size (arc minutes)
  • angle : orientation angle (in degrees)
  • (wtype) : wavelength class for the origin of the angular size (Rad, mm, IR, Opt, UV, Xray, Gam)
  • quality : flag of quality of the angular size values ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the angular size reference
Angular size (arcmin): 		0.0067 0.0 235 (Opt) D 2001AJ....122.3466M
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 (7) :
U 7.76 [~] C 2002yCat.2237....0D
B 7.28 [~] C 2002yCat.2237....0D
V 6.37 [~] C 2002yCat.2237....0D
G 6.3289 [0.0095] C 2018yCat.1345....0G
J 4.46 [~] C 2002yCat.2237....0D
H 3.95 [~] C 2002yCat.2237....0D
K 3.83 [~] C 2002yCat.2237....0D
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The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding.
Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!).

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (57) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

HD 21242 1ES 0323+28.5 PPM 92507 TYC 1809-1349-1
** CHR 9 2EUVE J0326+28.7 2RE J032635+284306 uvby98 100021242
** TOK 13A EUVE J0326+28.7 2RE J0326+284 V* UX Ari
3A 0322+277 87GB 032335.1+283253 RE J032635+284255 WDS J03266+2843Aa,Ab
AG+28 359 GC 4089 RE J0326+284 WDS J03266+2843A
AGKR 3031 GCRV 1890 RGB J0326+287 WEB 3061
AT 0318+220 GEN# +1.00021242 RX J0326.5+2842 2XMM J032635.3+284251
BD+28 532 GJ 141.1 RX J0326.5+2843 XSS J03247+2836
BWE 0323+2832 GSC 01809-01349 1RXS J032635.1+284302 YZ 28 1687
CABS 28 H 0324+28 SAO 75927 [BSF97] J032635.3+284255
CCABS 26 HIC 16042 SBC7 122 [LH98] 66
CCDM J03266+2843AB HIP 16042 SBC9 169 Gaia DR2 118986060277836160
CMC 202151 IRAS 03235+2832 SBC9 2464
2E 770 2MASS J03263538+2842543 SKY# 5181
2E 0323.5+2832 2MAXI J0326+287 TIC 29701408

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References (668 between 1850 and 2021) (Total 668)
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    diameter : 1    velocities : 6    PM : 6    Fe_H : 4    PLX : 3    MK : 2   

   

Observing logs


ISO : 4    XMM : 3    herschel : 3    IUE : 101   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : V* UX Ari

Link by name to the catalogue in VizieR :

HD 21242 AG+28 359 BD+28 532 BWE 0323+2832 CABS 28
CCDM J03266+2843AB 2E 770 EUVE J0326+28.7 GJ 141.1 GSC 01809-01349
HIC 16042 HIP 16042 IRAS 03235+2832 2MASS J03263538+2842543 PPM 92507
2RE J032635+284306 2RE J0326+284 1RXS J032635.1+284302 SAO 75927 TYC 1809-1349-1
uvby98 100021242 V* UX Ari WDS J03266+2843Aa,Ab WDS J03266+2843A Gaia DR2 118986060277836160

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2021.03.08-20:44:18

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