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- Institute of Astronomy and Astrophysics, Academia SinicaTW1.4k papers
- Institute of Physics, Academia SinicaTW1.1k papers
- Lawrence Berkeley National LaboratoryUS821 papers
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29 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…
The Irradiation Origin of Beryllium Radioisotopes and Other Short-lived Radionuclides
Matthieu Gounelle, Frank H. Shu, Hsien Shang +3
Two explanations exist for the short-lived radionuclides present in the solar system when the CAIs first formed. They originated either from the ejecta of a supernova or by the in…
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…
Interferometric Measurements of Variable 340 GHz Linear Polarization in Sagittarius A*
D. P. Marrone, J. M. Moran, J. -H. Zhao +1
Using the Submillimeter Array, we have made the first high angular resolution measurements of the linear polarization of Sagittarius A* at submillimeter wavelengths, and the first…