What can VLBI astrometry tell us about AR Sco?

doi:10.1017/S1743921317000618

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	What can VLBI astrometry tell us about AR Sco?
	Cui, Lang1,2 ; Yang, Jun 3; Ma, Hongli1 ; Liu, Jun1,2 ; Chen, Wen 4
	2017-10-01
Conference Name	IAUS 323:Planetary Nebulae: Multi-Wavelength Probes of Stellar and Galactic Evolution
Source Publication	Proceedings of IAUS 323: Planetary Nebulae: Multi-Wavelength Probes of Stellar and Galactic Evolution
Volume	12
Issue	S323
Pages	376-377
Conference Date	Oct 10 - Oct 14,2016
Correspondent Email	cuilang@xao.ac.cn
Conference Place	Beijing, China
Publisher	Cambridge University Press
Contribution Rank	1
Abstract	We proposed to carry out high precision very long baseline interferometry (VLBI) observations of AR Sco, a pulsing white dwarf (WD) - M dwarf (MD) binary, to provide a direct distance measurement with the e-EVN (European VLBI Network) at 5 GHz. By the proposed parallax measurement on AR Sco, not only the precise distance will be determined, but also some physical parameters, such as the luminosity, the mass and the magnetic field will be significantly tightened accordingly, even the gravitational wave amplitude from this unique binary system can be tightly constrained. In addition, the EVN observations will allow us to answer that whether there is an extended emission structure associated with AR Sco, which will help us to explain the stable continuum radio emission observed during the pulse-off state.
Funding Organization	Xinjiang Key Laboratory of Radio Astrophysics (No. 2016D03020) ; IAU ; Xinjiang Key Laboratory of Radio Astrophysics (No. 2016D03020) ; IAU ; National Natural Science Foundation of China (NSFC) (No. 11503072) ; National Natural Science Foundation of China (NSFC) (No. 11503072) ; Program of the Light in China’s Western Region(No. YBXM-2014-02 ; Program of the Light in China’s Western Region(No. YBXM-2014-02 ; 2015-XBQN-B-01) ; 2015-XBQN-B-01) ; NSFC (No. 11303079) ; NSFC (No. 11303079)
Keyword	Vlbi Ar Sco Binary
DOI	10.1017/S1743921317000618
URL	查看原文
Indexed By	其他
Language	英语
ISBN	978-1-107-16991-3
ISSN	1743-9213
Citation statistics
Document Type	会议论文
Identifier	http://ir.xao.ac.cn/handle/45760611-7/1825
Collection	射电天文研究室研究生学位论文
Corresponding Author	Cui, Lang
Affiliation	1.Xinjiang Astronomical Observatory, Chinese Academy of Sciences 2.Key Laboratory of Radio Astronomy, Chinese Academy of Sciences,150 Science 1-Street, Urumqi, 830011, China 3.Onsala Space Observatory, Chalmers University of Technology,SE-439 92 Onsala, Sweden 4.Yunnan Observatories, Chinese Academy of Sciences,P.O. Box 110, Kunming 650011, Yunnan, China
First Author Affilication	Xinjiang Astronomical Observatory, Chinese Academy of Sciences
Corresponding Author Affilication	Xinjiang Astronomical Observatory, Chinese Academy of Sciences
Recommended Citation GB/T 7714	Cui, Lang,Yang, Jun,Ma, Hongli,et al. What can VLBI astrometry tell us about AR Sco?[C]:Cambridge University Press,2017:376-377.

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