Keywords
astrometry
binaries: general
circumstellar matter
ISM: individual (L1551 IRS 5)
stars: formation
Astrophysics - Solar and Stellar Astrophysics
Astrophysics - Astrophysics of Galaxies
binaries: general
circumstellar matter
ISM: individual (L1551 IRS 5)
stars: formation
Astrophysics - Solar and Stellar Astrophysics
Astrophysics - Astrophysics of Galaxies
How to Cite
Proper motions of L1551 IRS 5 binary system using 7 mm VLA observations. (2017). Revista Mexicana De Astronomía Y Astrofísica, 53(2), 525-531. https://astronomia.unam.mx/journals/rmxaa/article/view/2017rmxaa..53..525v
Abstract
We analyzed high angular resolution observations of the Very Large Array archive at a wavelength of 7 mm made for the L1551 IRS 5 binary system. Six sets of observations, five with the A configuration and one with the B configuration, were used, covering a time span of about 15 years. With these multi-epoch data, we estimated the absolute and relative proper motions of the binary system, which are about 25.1 mas yr-1 (≈ 16.7 km s-1 considering a distance of 140 pc) and 4.2 mas yr-1, respectively. Finally, based on the relative proper motion, we estimated a total mass for the L1551 IRS 5 binary system of 1.7 M⊙ and an orbital period of 246 years.Similar Articles
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