Parallaxes for Star-forming Regions in the Inner Perseus Spiral Arm
Zhang, Bo1; Reid, Mark J.2; Zhang, Lian1; Wu, Yuanwei3,4; Hu, Bo5; Sakai, Nobuyuki4; Menten, Karl M.6; Zheng, Xingwu5; Brunthaler, Andreas6; Dame, Thomas M.2; Xu, Ye7
Corresponding AuthorZhang, Bo(
AbstractWe report trigonometric parallax and proper motion measurements of 6.7 GHz CH3OH and 22 GHz H2O masers in eight high-mass star-forming regions (HMSFRs) based on Very Long Baseline Array (VLBA) observations as part of the Bar and Spiral Structure Legacy (BeSSeL) Survey. The distances of these HMSFRs combined with their Galactic coordinates, radial velocities, and proper motions, allow us to assign them to a segment of the Perseus arm with l less than or similar to 70 degrees. These HMSFRs are clustered in Galactic longitude from to neighboring a dearth of such sources between longitudes to approximate to 50 degrees to approximate to 90 degrees.
Keywordastrometry Galaxy: fundamental parameters Galaxy: kinematics and dynamics masers stars: formation techniques: high angular resolution
Indexed BySCI
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000466748400001
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Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorZhang, Bo
Affiliation1.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
2.Ctr Astrophys Harvard & Smithsonian, 60 Garden St, Cambridge, MA 02138 USA
3.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Shaanxi, Peoples R China
4.Natl Astron Observ Japan, Mizusawa VLBI Observ, Mitaka, Tokyo 1818588, Japan
5.Nanjing Univ, Sch Astron & Space Sci, 22 Hankou Rd, Nanjing 210093, Jiangsu, Peoples R China
6.Max Plank Inst Radioastron, Hugel 69, D-53121 Bonn, Germany
7.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
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GB/T 7714
Zhang, Bo,Reid, Mark J.,Zhang, Lian,et al. Parallaxes for Star-forming Regions in the Inner Perseus Spiral Arm[J]. ASTRONOMICAL JOURNAL,2019,157(5):8.
APA Zhang, Bo.,Reid, Mark J..,Zhang, Lian.,Wu, Yuanwei.,Hu, Bo.,...&Xu, Ye.(2019).Parallaxes for Star-forming Regions in the Inner Perseus Spiral Arm.ASTRONOMICAL JOURNAL,157(5),8.
MLA Zhang, Bo,et al."Parallaxes for Star-forming Regions in the Inner Perseus Spiral Arm".ASTRONOMICAL JOURNAL 157.5(2019):8.
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