SMA CO(J=6-5) and 435 micron interferometric imaging of the nuclear region of Arp 220 (2008)
Matsushita, Satoki, Iono, Daisuke, Petitpas, Glen R., Chou, Richard C. -Y., Gurwell, Mark A., Hunter, Todd R., ...
We have used the Submillimeter Array (SMA) to make the first interferometric observations (beam size ~1") of the 12CO J=6-5 line and 435 micron (690 GHz) continuum emission toward the central region...
First Confirmed Detection of a Bipolar Molecular Outflow from a Young Brown Dwarf (2008)
Phan-Bao, Ngoc, Riaz, Basmah, Lee, Chin-Fei, Tang, Ya-Wen, Ho, Paul T. P., Martin, Eduardo L., ...
Studying the earliest stages in the birth of stars is crucial for understanding how they form. Brown dwarfs with masses between that of stars and planets are not massive enough to maintain stable...
The Yuan-Tseh Lee Array for Microwave Background Anisotropy (2008)
Ho, Paul T. P., Altamirano, Pablo, Chang, Chia-Hao, Chang, Shu-Hao, Chang, Su-Wei, Chen, Chung-Cheng, ...
The Yuan-Tseh Lee Array for Microwave Background Anisotropy (AMiBA) is the first interferometer dedicated to studying the cosmic microwave background (CMB) radiation at 3mm wavelength. The choice of...
Molecular Gas and Star formation in ARP 302 (2008)
Ao, Yiping, Lim, Jeremy, Yang, Ji, Matsushita, Satoki
We present the Submillimeter Array observation of the CO J=2-1 transition towards the northern galaxy, ARP 302N, of the early merging system, ARP 302. Our high angular resolution observation reveals...
Interferometric 12CO(J=2-1) image of the Nuclear Region of Seyfert 1 Galaxy NGC 1097 (2008)
Hsieh, Pei-Ying, Matsushita, Satoki, Lim, Jeremy, Kohno, Kotaro, Sawada-Satoh, Satoko
We have mapped the central region of the Seyfert 1 galaxy NGC 1097 in 12CO(J=2-1) with the Submillieter Array (SMA). The 12CO(J=2-1) map shows a central concentration and a surrounding ring, which...
Prevalence of Tidal Interactions among Local Seyfert Galaxies: The Control Experiment (2008)
Tang, Ya-Wen, Kuo, Cheng-Yu, Lim, Jeremy, Ho, Paul T. P.
We test whether there is a relation between the observed tidal interactions and Seyfert activity by imaging in HI twenty inactive galaxies at the same spatial resolution and detection threshold as...
Prevalence of Tidal Interactions among Local Seyfert Galaxies (2008)
Kuo, Cheng-Yu, Lim, Jeremy, Tang, Ya-Wen, Ho, Paul T. P.
No mechanisms have hitherto been conclusively demonstrated to be responsible for initiating optically-luminous nuclear (Seyfert) activity in local disk galaxies. Only a small minority of such...
We have imaged in CO(2-1) the molecular gas in NGC 1275 (Perseus A), the cD galaxy at the center of the Perseus Cluster, at a spatial resolution of $\sim$1 kpc over a central region of radius $\sim$...
Molecular shells in IRC+10216: Evidence for non-isotropic and episodic mass loss enhancement (2007)
We report high angular-resolution VLA observations of cyanopolyyne molecules HC$_3$N and HC$_5$N from the carbon rich circumstellar envelope of IRC+10216. The observed low-lying rotational...
Submillimeter Array Observation of the Proto-Planetary Nebula CRL 618 in the CO J=6-5 Line (2007)
Nakashima, Jun-ichi, Fong, David, Hasegawa, Tatsuhiko, Hirano, Naomi, Koning, Nico, Kwok, Sun, ...
We report on the results of a Submillimeter Array interferometric observation of the proto-planetary nebula CRL 618 in the 12CO J=6-5 line. With the new capability of SMA enabling us to use two...
Lal, Dharam Vir, Matsushita, Satoki, Lim, Jeremy
For the submillimeter band observations, we have been routinely adopting the calibration cycle time of 20-30 minutes, which is the same as any typical centimeter and millimeter band observations....
Jet-disturbed molecular gas near the Seyfert 2 nucleus in M51 (2007)
Matsushita, Satoki, Muller, Sebastien, Lim, Jeremy
Previous molecular gas observations at arcsecond-scale resolution of the Seyfert 2 galaxy M51 suggest the presence of a dense circumnuclear rotating disk, which may be the reservoir for fueling the...
Magnetic Fields in M Dwarfs: Rapid Magnetic Field Variability in EV Lacertae (2007)
Phan-Bao, Ngoc, Martín, Eduardo L., Donati, Jean-François, Lim, Jeremy
We report here our spectropolarimetric observations obtained using the CFHT Espadons high-resolution spectrograph of two M dwarf stars that standard models suggest are fully convective: EV Lac (M3.5)...
654 GHz Continuum and C18O (6-5) Observations of G240.31+0.07 with the Submillimeter Array (2006)
Chen, Huei-Ru, Su, Yu-Nung, Liu, Sheng-Yuan, Hunter, Todd R., Wilner, David J., Zhang, Qizhou, ...
We report a dual-band observation at 223 and 654 GHz (460 micron) toward an ultracompact (UC) HII region, G240.31+0.07, with the Submillimeter Array. With a beam size of 1"5 X 0"8, the dust continuum...
Possible Molecular Spiral Arms in the Protoplanetary Disk of AB Aur (2006)
Lin, Shin-Yi, Ohashi, Nagayoshi, Lim, Jeremy, Ho, Paul T. P., Fukagawa, Misato, Tamura, Motohide
The circumstellar dust disk of the Herbig Ae star AB Aur has been found to exhibit complex spiral-like structures in the near-IR image obtained with the Subaru Telescope. We present maps of the disk...
Radio Cores of Bipolar Nebulae: Search for Collimated Winds (2003)
Lee, Ting-Hui, Lim, Jeremy, Kwok, Sun
We present results of our search for collimated ionized winds in bipolar nebulae using the Very Large Array (VLA) and the Australia Telescope Compact Array (ATCA). Our search is motivated by the...
Molecular Gas Reservoir in low-z Powerful Radio Galaxies (2002)
Lim, Jeremy, Leon, Stephane, Combes, Francoise
We report a survey for molecular gas in 3C radio galaxies at redshifts z < 0.031. Four of the twenty-three galaxies observed were detected with molecular gas masses in the range 10^7--10^9 Msun. The...
Molecular Gas in nearby Early-Type Powerful Classical Radio Galaxies (2002)
Leon, Stephane, Lim, Jeremy, Combes, Francoise
We report a survey for molecular gas in nearby powerful radio galaxies. Eight of the eighteen radio galaxies observed were detected with molecular masses in the range 10^7--10^9 Msun, similar to the...