PARALLAXES OF STAR-FORMING REGIONS IN THE OUTER SPIRAL ARM OF THE MILKY WAY

	PARALLAXES OF STAR-FORMING REGIONS IN THE OUTER SPIRAL ARM OF THE MILKY WAY
	Hachisuka, K.1,2,3; Choi, Y. K.4,5; Reid, M. J.6; Brunthaler, A.5; Menten, K. M.5; Sanna, A.5; Dame, T. M.6
刊名	ASTROPHYSICAL JOURNAL
	2015-02-10
卷号	800 期号:1 页码:1
关键词	astrometry Galaxy: kinematics and dynamics Galaxy: structure masers stars: distances
英文摘要	We report parallaxes and proper motions of three water maser sources in high-mass star-forming regions in the Outer Spiral Arm of the Milky Way. The observations were conducted with the Very Long Baseline Array as part of Bar and Spiral Structure Legacy Survey and double the number of such measurements in the literature. The Outer Arm has a pitch angle of 14 degrees.9 +/- 2 degrees.7 and a Galactocentric distance of 14.1 +/- 0.6 kpc toward the Galactic anticenter. The average motion of these sources toward the Galactic center is 10.7 +/- 2.1 kms(-1) and we see no sign of a significant fall in the rotation curve out to 15 kpc from the Galactic center. The three-dimensional locations of these star-forming regions are consistent with a Galactic warp of several hundred parsecs from the plane.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	TRIGONOMETRIC PARALLAXES ; IRAS SOURCES ; FUNDAMENTAL PARAMETERS ; METHANOL MASERS ; VLBI ASTROMETRY ; WATER MASERS ; SOLAR CIRCLE ; GALAXY ; DISTANCE ; DISK
收录类别	SCI
语种	英语
WOS记录号	WOS:000349236900002
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/18200]
专题	上海天文台_星系宇宙学重点实验室
作者单位	1.Yamaguchi Univ, Res Inst Time Studies, Yamaguchi 7538511, Japan 2.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 3.Ibaraki Univ, Ctr Astron, Mito, Ibaraki 2108512, Japan 4.Korea Astron & Space Inst, Taejon 305348, South Korea 5.Max Planck Inst Radioastron, D-53121 Bonn, Germany 6.Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
推荐引用方式 GB/T 7714	Hachisuka, K.,Choi, Y. K.,Reid, M. J.,et al. PARALLAXES OF STAR-FORMING REGIONS IN THE OUTER SPIRAL ARM OF THE MILKY WAY[J]. ASTROPHYSICAL JOURNAL,2015,800(1):1.
APA	Hachisuka, K..,Choi, Y. K..,Reid, M. J..,Brunthaler, A..,Menten, K. M..,...&Dame, T. M..(2015).PARALLAXES OF STAR-FORMING REGIONS IN THE OUTER SPIRAL ARM OF THE MILKY WAY.ASTROPHYSICAL JOURNAL,800(1),1.
MLA	Hachisuka, K.,et al."PARALLAXES OF STAR-FORMING REGIONS IN THE OUTER SPIRAL ARM OF THE MILKY WAY".ASTROPHYSICAL JOURNAL 800.1(2015):1.