Doppler maps and surface differential rotation of EI eri from the MUSICOS 1998 observations

Zs Kövári; A. Washuettl; B. H. Foing; K. Vida; J. Bartus; K. Oláh

doi:10.1063/1.3099204

Doppler maps and surface differential rotation of EI eri from the MUSICOS 1998 observations

Zs Kövári^*
, A. Washuettl
, B. H. Foing
, K. Vida
, J. Bartus
, K. Oláh

^*Corresponding author for this work

Research Centre For Astronomy and Earth Sciences
Leibniz Institute for Astrophysics Potsdam
Research Support Division
Eotvos Lorand University

Research output: Contribution to journal › Conference article › peer-review

6 Citations (Scopus)

Abstract

We present time-series Doppler images of the rapidly-rotating active binary star EI Eri from spectroscopic observations collected during the MUSICOS multi-site campaign in 1998, since the critical rotation period of 1.947 days makes it impossible to obtain time-resolved images from a single site. From the surface reconstructions a weak solar-type differential rotation, as well as a tiny poleward meridional flow are measured.

Original language	English
Pages (from-to)	676-679
Number of pages	4
Journal	AIP Conference Proceedings
Volume	1094
DOIs	https://doi.org/10.1063/1.3099204
Publication status	Published - 2009
Externally published	Yes
Event	15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun - St. Andrews, United Kingdom Duration: 21 Jul 2008 → 25 Jul 2008

Keywords

Activity
EI Eri
Imaging
Individual
Late-type
Starspots

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10.1063/1.3099204

Cite this

@article{88116f1a4dc4438ca3f13a2f9a8d0b25,

title = "Doppler maps and surface differential rotation of EI eri from the MUSICOS 1998 observations",

abstract = "We present time-series Doppler images of the rapidly-rotating active binary star EI Eri from spectroscopic observations collected during the MUSICOS multi-site campaign in 1998, since the critical rotation period of 1.947 days makes it impossible to obtain time-resolved images from a single site. From the surface reconstructions a weak solar-type differential rotation, as well as a tiny poleward meridional flow are measured.",

keywords = "Activity, EI Eri, Imaging, Individual, Late-type, Starspots",

author = "Zs K{\"o}v{\'a}ri and A. Washuettl and Foing, \{B. H.\} and K. Vida and J. Bartus and K. Ol{\'a}h",

year = "2009",

doi = "10.1063/1.3099204",

language = "English",

volume = "1094",

pages = "676--679",

journal = "AIP Conference Proceedings",

issn = "0094-243X",

publisher = "American Institute of Physics",

note = "15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun ; Conference date: 21-07-2008 Through 25-07-2008",

}

TY - JOUR

T1 - Doppler maps and surface differential rotation of EI eri from the MUSICOS 1998 observations

AU - Kövári, Zs

AU - Washuettl, A.

AU - Foing, B. H.

AU - Vida, K.

AU - Bartus, J.

AU - Oláh, K.

PY - 2009

Y1 - 2009

N2 - We present time-series Doppler images of the rapidly-rotating active binary star EI Eri from spectroscopic observations collected during the MUSICOS multi-site campaign in 1998, since the critical rotation period of 1.947 days makes it impossible to obtain time-resolved images from a single site. From the surface reconstructions a weak solar-type differential rotation, as well as a tiny poleward meridional flow are measured.

AB - We present time-series Doppler images of the rapidly-rotating active binary star EI Eri from spectroscopic observations collected during the MUSICOS multi-site campaign in 1998, since the critical rotation period of 1.947 days makes it impossible to obtain time-resolved images from a single site. From the surface reconstructions a weak solar-type differential rotation, as well as a tiny poleward meridional flow are measured.

KW - Activity

KW - EI Eri

KW - Imaging

KW - Individual

KW - Late-type

KW - Starspots

UR - https://www.scopus.com/pages/publications/64849099059

U2 - 10.1063/1.3099204

DO - 10.1063/1.3099204

M3 - Conference article

AN - SCOPUS:64849099059

SN - 0094-243X

VL - 1094

SP - 676

EP - 679

JO - AIP Conference Proceedings

JF - AIP Conference Proceedings

T2 - 15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun

Y2 - 21 July 2008 through 25 July 2008

ER -

Doppler maps and surface differential rotation of EI eri from the MUSICOS 1998 observations

Abstract

Keywords

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