University of Hertfordshire

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Comparisons of images derived from independent Zeeman Doppler imaging codes

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Comparisons of images derived from independent Zeeman Doppler imaging codes. / Hussain, G A J ; Donati, J F ; Collier Cameron, A ; Barnes, J R .

In: Monthly Notices of the Royal Astronomical Society, Vol. 318, No. 4, 11.11.2000, p. 961-973.

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Hussain, G A J ; Donati, J F ; Collier Cameron, A ; Barnes, J R . / Comparisons of images derived from independent Zeeman Doppler imaging codes. In: Monthly Notices of the Royal Astronomical Society. 2000 ; Vol. 318, No. 4. pp. 961-973.

Bibtex

@article{dcff2b2182864a36b04a8b807d1c9a87,
title = "Comparisons of images derived from independent Zeeman Doppler imaging codes",
abstract = "We compare surface brightness and magnetic field surface maps for the K0 dwarf AB Doradus, obtained using two independently developed Zeeman Doppler imaging codes. We find that even the fine structure in the two sets of images shows excellent agreement. Magnetic field maps appear to be less sensitive to line-modelling effects than brightness maps. We argue that these results point to the consistency and reliability of Doppler imaging techniques even when using poorly sampled data sets, provided that the spectra used are of sufficiently high signal-to-noise ratio.",
keywords = "polarization, stars : activity, stars : imaging, stars : individual : HD 36705, stars : late-type, stars : magnetic fields, CLEAN-LIKE APPROACH, AB DORADUS, ACTIVE STARS, RECONSTRUCTION, SENSITIVITY, HD-26337, LINE",
author = "Hussain, {G A J} and Donati, {J F} and {Collier Cameron}, A and Barnes, {J R}",
year = "2000",
month = nov,
day = "11",
doi = "10.1046/j.1365-8711.2000.03573.x",
language = "English",
volume = "318",
pages = "961--973",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "4",

}

RIS

TY - JOUR

T1 - Comparisons of images derived from independent Zeeman Doppler imaging codes

AU - Hussain, G A J

AU - Donati, J F

AU - Collier Cameron, A

AU - Barnes, J R

PY - 2000/11/11

Y1 - 2000/11/11

N2 - We compare surface brightness and magnetic field surface maps for the K0 dwarf AB Doradus, obtained using two independently developed Zeeman Doppler imaging codes. We find that even the fine structure in the two sets of images shows excellent agreement. Magnetic field maps appear to be less sensitive to line-modelling effects than brightness maps. We argue that these results point to the consistency and reliability of Doppler imaging techniques even when using poorly sampled data sets, provided that the spectra used are of sufficiently high signal-to-noise ratio.

AB - We compare surface brightness and magnetic field surface maps for the K0 dwarf AB Doradus, obtained using two independently developed Zeeman Doppler imaging codes. We find that even the fine structure in the two sets of images shows excellent agreement. Magnetic field maps appear to be less sensitive to line-modelling effects than brightness maps. We argue that these results point to the consistency and reliability of Doppler imaging techniques even when using poorly sampled data sets, provided that the spectra used are of sufficiently high signal-to-noise ratio.

KW - polarization

KW - stars : activity

KW - stars : imaging

KW - stars : individual : HD 36705

KW - stars : late-type

KW - stars : magnetic fields

KW - CLEAN-LIKE APPROACH

KW - AB DORADUS

KW - ACTIVE STARS

KW - RECONSTRUCTION

KW - SENSITIVITY

KW - HD-26337

KW - LINE

U2 - 10.1046/j.1365-8711.2000.03573.x

DO - 10.1046/j.1365-8711.2000.03573.x

M3 - Article

VL - 318

SP - 961

EP - 973

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 4

ER -