1998A&A...339..497S


C.D.S. - SIMBAD4 rel 1.7 - 2020.03.29CEST12:13:59

1998A&A...339..497S - Astronomy and Astrophysics, volume 339, 497-506 (1998/11-2)

Doppler imaging of stellar surface structure. IX. A high-resolution image of the weak-lined T Tauri star HDE 283572 = V987 Tauri.

STRASSMEIER K.G. and RICE J.B.

Abstract (from CDS):

We present a Doppler image of the T Tauri star HDE 283572 from a set of high-quality spectroscopic line profiles and simultaneous multicolor photometry from October 1997. Additional photometry throughout the entire observing season was obtained with a robotic telescope and is used to determine the precise photometric period of 1.5495±0.0002 days that we interpret to be the stellar rotation period. Further relevant astrophysical parameters like mass, luminosity, radius, effective temperature, gravity, and elemental abundances are obtained and discussed. HDE 283572 shows one of the largest and coolest polar spots ever observed and confirms an earlier map by Joncour et al. from Pic-du-Midi data. We also compare our map with predicted magnetic flux-tube distributions from MHD simulations and suggest that the polar spot on HDE 283572 was possibly created by a strong poleward meridional flow.

Abstract Copyright:

Journal keyword(s): stars: activity - starspots - stars: imaging - stars: individual: HDE 283572 - stars: late-type

Status at CDS:  

Simbad objects: 18

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Number of rows : 18

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 V* UX Ari RS* 03 26 35.3764089427 +28 42 54.211100955 7.76 7.28 6.37     K0IV 660 0
2 * eps Eri BY* 03 32 55.8449634 -09 27 29.731165 5.19 4.61 3.73 3.00 2.54 K2V 1675 1
3 HD 22468 RS* 03 36 47.2911034958 +00 35 15.938962144 7.09 6.63   5.4   K2:Vnk 1122 0
4 V* EI Eri RS* 04 09 40.8929265498 -07 53 34.177328732   7.71 7.04     G3V 267 0
5 V* V410 Tau TT* 04 18 31.1083261392 +28 27 16.155411536   12.13 10.75 8.45 9.408 K3Ve 424 0
6 HD 283572 TT* 04 21 58.8482823933 +28 18 06.511915195   9.80 9.03 9.14   G5IVe 267 0
7 HD 27570 PM* 04 22 20.7056432388 +30 25 25.949250486   9.76 9.1     G5V 29 0
8 HD 27741 PM* 04 23 43.9304225076 +28 11 10.745465617   8.92 8.3     G5V 27 0
9 V* DF Tau TT* 04 27 02.7917481241 +25 42 22.456361256 11.97 12.25 11.42 10.31 9.14 M3Ve 458 1
10 HD 282183 * 04 27 30.5861590243 +29 05 28.190931175   9.80 9.26     F8 5 0
11 HD 28447 PM* 04 30 20.0586976188 +28 07 54.711131857   7.229 6.515     G5V 57 0
12 HD 36705 TT* 05 28 44.8916324761 -65 26 55.289846904 8.259 7.856 6.999 6.496 5.993 K0V 923 0
13 V* V1321 Ori Or* 05 35 04.3009468008 -05 08 12.736574621   11.94 10.538   9.117 K0III 91 0
14 V* LQ Hya BY* 09 32 25.5684079124 -11 11 04.687410738 9.316 8.761 7.891 7.288 6.815 K1Vp 398 0
15 * 11 LMi RS* 09 35 39.5018053382 +35 48 36.484070234 6.560 6.110 5.340 4.79 4.42 G8Va 345 0
16 V* HU Vir RS* 12 13 20.6903303051 -09 04 46.844857323   9.69 8.71   7.639 K1V 136 0
17 V* FK Com Ro* 13 30 46.7993742986 +24 13 57.786184235   9.04 8.245   7.204 G4III 346 1
18 HD 155555 RS* 17 17 25.5047544575 -66 57 03.732827572 7.795 7.499 6.723   6.39 K1Vp 249 2

    Equat.    Gal    SGal    Ecl

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2020.03.29-12:13:59

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