690 citations · 13.3k across the 204 of their papers we have counts for
11 papers · 2 filters
A size of ~1 AU for the radio source Sgr A* at the centre of the Milky Way
Zhi-Qiang Shen, K. Y. Lo, M. -C. Liang +2
Although it is widely accepted that most galaxies have supermassive black holes (SMBHs) at their centers^{1-3}, concrete proof has proved elusive. Sagittarius A* (Sgr A*)^4, an ext…
Submillimeter emission from the hot molecular jet HH 211
A. Palau, P. T. P. Ho, Q. Zhang +7
We observed the HH 211 jet in the submillimeter continuum and the CO(3-2) and SiO(8-7) transitions with the Submillimeter Array. The continuum source detected at the center of the…
SiO J=5--4 in the HH211 Protostellar Jet Imaged with the SMA
Naomi Hirano, Sheng-Yuan Liu, Hsien Shang +5
We have mapped the SiO J=5-4 line at 217GHz from the HH211 molecular outflow with the Submillimeter Array (SMA). The high resolution map (1.6''x0.9'') shows that the SiO J=5-4 emis…
CO J=6-5 observations of TW Hya with the SMA
C. Qi, D. J. Wilner, N. Calvet +5
We present the first images of the 691.473 GHz CO J=6-5 line in a protoplanetary disk, obtained along with the 690 GHz dust continuum, toward the classical T Tauri star TW Hya usin…
Infall and Outflow around the HH 212 protostellar system
Chin-Fei Lee, Paul T. P. Ho, Henrik Beuther +4
HH 212 is a highly collimated jet discovered in H2 powered by a young Class 0 source, IRAS 05413-0104, in the L1630 cloud of Orion. We have mapped around it in 1.33 mm continuum, 1…
A disk of dust and molecular gas around a high-mass protostar
Nimesh A. Patel, Salvador Curiel, T. K. Sridharan +7
The processes leading to the birth of low-mass stars such as our Sun have been well studied, but the formation of high-mass (> 8 x Sun's mass) stars has heretofore remained poorly…
Submm line imaging of Orion-KL with the Submillimeter Array
H. Beuther, Q. Zhang, L. J. Greenhill +8
We present the first submm (865mum) imaging spectral line survey at one arcsecond resolution conducted with the Submillimeter Array toward Orion-KL. Within the 2x2 GHz bandpasses (…
An Infalling Torus of Molecular Gas Around the Ultra-Compact HII Region G28.20-0.05
Peter K. Sollins, Qizhou Zhang, Eric Keto +1
We present new observations of the ultra-compact HII region G28.20-0.05 in 23 GHz continuum, and the NH3(1,1), NH3(2.2), and NH3(3,3) lines. To explain the complicated kinematics o…
The Molecular Accretion Flow in G10.6-0.4
Peter K. Sollins, Paul T. P Ho
We have observed the ultracompact HII region G10.6-0.4 with the VLA in 23 GHz continuum and the NH3(3,3) inversion line. By analyzing the optical depth of the line as well as the k…
IRAS 16293-2442B: A Compact, Possibly Isolated Protoplanetary Disk in a Class 0 Object
Luis F. Rodriguez, Laurent Loinard, Paola D'Alessio +2
Theoretical arguments suggest that protoplanetary disks around young stars should start small and grow with the addition of high angular momentum material to reach the radii of sev…
Atomic and Molecular Gas in Colliding Galaxy Systems: I. The Data
Daisuke Iono, Min S. Yun, Paul T. P. Ho
We present HI and CO(1-0) interferometric observations of 10 comparable-mass interacting systems obtained at the Very Large Array (VLA) and the Owens Valley Radio Observatory (OVRO…