activity
20032009
most citedTrigonometric Parallaxes of Massive Star Forming Regions: VI. Galactic Structure, Fundamental Parameters and Non-Circular Motions

1.1k citations · 1.2k across the 6 of their papers we have counts for

collaborators

8 papers

astro-ph.GA20091.1k cited

Trigonometric Parallaxes of Massive Star Forming Regions: VI. Galactic Structure, Fundamental Parameters and Non-Circular Motions

M. J. Reid, K. M. Menten, X. W. Zheng +11

We are using the VLBA and the Japanese VERA project to measure trigonometric parallaxes and proper motions of masers found in high-mass star-forming regions across the Milky Way. E…

astro-ph200881 cited

A Molecular Line Observation toward Massive Clumps Associated with Infrared Dark Clouds

Takeshi Sakai, Nami Sakai, Kazuhisa Kamegai +4

We have surveyed the N2H+ J=1-0, HC3N J=5-4, CCS J_N=4_3-3_2, NH3 (J, K) = (1, 1), (2, 2), (3, 3), and CH3OH J=7-6 lines toward the 55 massive clumps associated with infrared dark…

astro-ph200649 cited

VERA 22 GHz fringe search survey

L. Petrov, T. Hirota, M. Honma +3

This paper presents results of a survey search for bright compact radio sources at 22 GHz with the VERA radio-interferometer. Each source from a list of 2494 objects was observed i…

astro-ph200639 cited

Molecular Line Observations of a Carbon-Chain-Rich Core L492

Tomoya Hirota, Satoshi Yamamoto

We report on molecular abundances and distributions in a starless dense core L492. We have found that the abundances of carbon-chain molecules such as CCS, CS, HCN, HC$…

astro-ph2005

Multi-epoch VERA Observations of H2O masers in OH 43.8-0.1

M. Honma, T. Bushimata, Y. K. Choi +33

We report on the multi-epoch observations of H2O maser emission in star forming region OH 43.8-0.1 carried out with VLBI Exploration of Radio Astrometry (VERA). The large-scale mas…

astro-ph2004

Observations of H2O maser sources in Orion-Monoceros Molecular Clouds with VERA

T. Hirota, VERA project team

We present results of phase-referencing VLBI observations of water maser sources in Orion-Monoceros Molecular Clouds with VERA (VLBI Exploration of Radio Astrometry), which is newl…