| STELZER, Beate, Swetlana HUBRIG, S. ORLANDO, G. MICELA, Zdeněk MIKULÁŠEK a M. SCHÖLLER. The X-ray emission from Z Canis Majoris during an FUor-like outburst and the detection of its X-ray jet. Astronomy and Astrophysics. Les Ulis Cedex, France: EDP Sciences, 2009, roč. 2009, č. 499, s. 529-533, 4 s. ISSN 0004-6361. |
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@article{834385,
author = {Stelzer, Beate and Hubrig, Swetlana and Orlando, S. and Micela, G. and Mikulášek, Zdeněk and Schöller, M.},
article_location = {Les Ulis Cedex, France},
article_number = {499},
keywords = {X-rays: stars; accretion; accretion disks; stars: pre-main sequence; stars: variables: general; stars: activity; stars: winds; outflows},
language = {eng},
issn = {0004-6361},
journal = {Astronomy and Astrophysics},
title = {The X-ray emission from Z Canis Majoris during an FUor-like outburst and the detection of its X-ray jet},
volume = {2009},
year = {2009}
}
TY - JOUR
ID - 834385
AU - Stelzer, Beate - Hubrig, Swetlana - Orlando, S. - Micela, G. - Mikulášek, Zdeněk - Schöller, M.
PY - 2009
TI - The X-ray emission from Z Canis Majoris during an FUor-like outburst and the detection of its X-ray jet
JF - Astronomy and Astrophysics
VL - 2009
IS - 499
SP - 529-533
EP - 529-533
PB - EDP Sciences
SN - 00046361
KW - X-rays: stars
KW - accretion
KW - accretion disks
KW - stars: pre-main sequence
KW - stars: variables: general
KW - stars: activity
KW - stars: winds
KW - outflows
N2 - We observed the FUor object Z CMa during optical outburst and quiescence with Chandra. No significant changes in X-ray brightness and spectral shape were found, suggesting that the X-ray emission is coronal. The binary nature of Z CMa makes the origin of the X-ray source ambiguous. However, the moderate hydrogen column density derived from our data makes it unlikely that the embedded primary star is the X-ray source. The secondary star, which is the FUor object, is thus responsible for both the X-ray emission and the ongoing accretion outburst, which seem, however, to be unrelated phenomena. The secondary is also known to drive a large outflow and jet, which we detect here for the first time in X-rays. The distance of the X-ray emitting outflow source to the central star is greater than in jets of low-mass stars.
ER -
STELZER, Beate, Swetlana HUBRIG, S. ORLANDO, G. MICELA, Zdeněk MIKULÁŠEK a M. SCHÖLLER. The X-ray emission from Z Canis Majoris during an FUor-like outburst and the detection of its X-ray jet. \textit{Astronomy and Astrophysics}. Les Ulis Cedex, France: EDP Sciences, 2009, roč.~2009, č.~499, s.~529-533, 4 s. ISSN~0004-6361.
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