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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