Zobrazeno 1 - 10
of 145
pro vyhledávání: '"M J, Reid"'
Autor:
S. B. Bian, Y. W. Wu, Y. Xu, M. J. Reid, J. J. Li, B. Zhang, K. M. Menten, L. Moscadelli, A. Brunthaler
Publikováno v:
The Astronomical Journal, Vol 167, Iss 6, p 267 (2024)
We report measurements of trigonometric parallax and proper motion for two 6.7 GHz methanol and two 22 GHz water masers located in the far portion of the Sagittarius spiral arm as part of the BeSSeL Survey. Distances for these sources are estimated f
Externí odkaz:
https://doaj.org/article/f73ccb6b5d2741e393a837930b2d79e2
Autor:
M. J. Reid, J. C. A. Miller-Jones
Publikováno v:
The Astrophysical Journal, Vol 959, Iss 2, p 85 (2023)
In this paper we significantly improve estimates of distance to the X-ray binary systems Cyg X-3 and GRS 1915+105. We report a highly accurate trigonometric parallax measurement for Cyg X-3 using the Very Long Baseline Array at 43 GHz, placing the so
Externí odkaz:
https://doaj.org/article/19ad7aa10fbd422c85aabacd4986f257
Autor:
L. J. Hyland, M. J. Reid, G. Orosz, S. P. Ellingsen, S. D. Weston, J. Kumar, R. Dodson, M. J. Rioja, W. J. Hankey, P. M. Yates-Jones, T. Natusch, S. Gulyaev, K. M. Menten, A. Brunthaler
Publikováno v:
The Astrophysical Journal, Vol 953, Iss 1, p 21 (2023)
We present the first results from the Southern Hemisphere Parallax Interferometric Radio Astrometry Legacy Survey: 10 μ as accurate parallaxes and proper motions for two Southern Hemisphere 6.7 GHz methanol masers obtained using the inverse MultiVie
Externí odkaz:
https://doaj.org/article/58e97504ec76453a8deb97cc875f820e
Autor:
Xiaofeng Mai, Bo Zhang, M. J. Reid, L. Moscadelli, Shuangjing Xu, Yan Sun, Jingdong Zhang, Wen Chen, Shiming Wen, Qiuyi Luo, Karl M. Menten, Xingwu Zheng, Andreas Brunthaler, Ye Xu, Guangli Wang
Publikováno v:
The Astrophysical Journal, Vol 949, Iss 1, p 10 (2023)
We report a measurement of the trigonometric parallax of 22 GHz water masers in the massive star-forming region G034.43+0.24 as part of the Bar and Spiral Structure Legacy Survey using the Very Long Baseline Array. The parallax is 0.330 ± 0.018 mas,
Externí odkaz:
https://doaj.org/article/1c1bce1531df455aa5d6b32a7e5140b5
Autor:
M. J. Reid
Publikováno v:
Publications of the Astronomical Society of the Pacific. 134:123001
Astrometry at centimeter wavelengths using Very Long Baseline Interferometry is approaching accuracies of ∼1 μas for the angle between a target and a calibrator source separated by ≲1° on the sky. The BeSSeL Survey and the Japanese VERA project
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::253f41111087ddab6183e6dc29fe72fe
https://doi.org/10.1088/1538-3873/acabe6
https://doi.org/10.1088/1538-3873/acabe6
Autor:
J. J. Li, K. Immer, M. J. Reid, A. Sanna, K. L. J. Rygl, Y. Xu, B. Zhang, A. Brunthaler, K. M. Menten
Publikováno v:
The Astrophysical Journal Supplement Series. 262:42
As part of the BeSSeL Survey, we have used the Very Long Baseline Array to measure 16 trigonometric parallaxes and proper motions of molecular masers associated with 14 high-mass star-forming regions in the Scutum arm in the first quadrant of the Mil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29a1c591fa60e675787bfdd09d14258a
https://doi.org/10.3847/1538-4365/ac8791
https://doi.org/10.3847/1538-4365/ac8791
Autor:
L. J. Hyland, M. J. Reid, S. P. Ellingsen, M. J. Rioja, R. Dodson, G. Orosz, C. R. Masson, J. M. McCallum
Publikováno v:
The Astrophysical Journal. 932:52
Very Long Baseline Interferometry (VLBI) astrometry is a well established technique for achieving ±10 μas parallax accuracies at frequencies well above 10 GHz. At lower frequencies, uncompensated interferometer delays associated with the ionosphere
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::070cbbabb149cd195a9f52f8e5f84cef
https://doi.org/10.3847/1538-4357/ac6d5b
https://doi.org/10.3847/1538-4357/ac6d5b
Publikováno v:
Proceedings of the International Astronomical Union. 13:154-157
The exclusive association of Class II methanol masers with high mass star formation regions and in turn spiral arms, makes them ideal tracers of spiral structure. The bright and compact nature of masers also makes them good sources for Very Long Base
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41cfa4a69490623fe82fc1bb8f57e601
https://doi.org/10.1017/s1743921318000832
https://doi.org/10.1017/s1743921318000832
Autor:
Steven N. Longmore, Qizhou Zhang, Andreas Brunthaler, Diederik Kruijssen, M. J. Reid, K. Immer, Karl M. Menten, Thushara Pillai, Jonathan D. Henshaw, Adam Ginsburg, Elisabeth A. C. Mills, Xing Lu
Publikováno v:
Proceedings of the International Astronomical Union. 13:176-179
The Central Molecular Zone (CMZ), the inner 450 pc of our Galaxy, is an exceptional region where the volume and column densities, gas temperatures, velocity dispersions, etc. are much higher than in the Galactic plane. It has been suggested that the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::028749f1a65c7db0e2d9ccacb523c869
https://doi.org/10.1017/s1743921317010213
https://doi.org/10.1017/s1743921317010213