Lee, Chin-Fei, Hirano, Naomi, Palau, Aina, Ho, Paul T. P., Bourke, Tyler L., Zhang, Qizhou, ...
HH 211 is a nearby young protostellar system with a highly collimated jet. We have mapped it in 352 GHz continuum, SiO (J=8-7), and HCO+ (J=4-3) emission at up to ~ 0.2" resolution with the...
The CO Molecular Outflows of IRAS 16293-2422 Probed by the Submillimeter Array (2007)
Yeh, Sherry C. C., Hirano, Naomi, Bourke, Tyler L., Ho, Paul T. P., Lee, Chin-Fei, Ohashi, Nagayoshi, ...
We have mapped the proto-binary source IRAS 16293-2422 in CO 2-1, 13CO 2-1, and CO 3-2 with the Submillimeter Array (SMA). The maps with resolution of 1".5-5" reveal a single small scale (~3000 AU)...
Submillimeter arcsecond-resolution mapping of the highly collimated protostellar jet HH 211 (2007)
Lee, Chin-Fei, Ho, Paul T. P., Palau, Aina, Hirano, Naomi, Bourke, Tyler L., Shang, Hsien, ...
We have mapped the protostellar jet HH 211 in 342 GHz continuum, SiO ($J=8-7$), and CO ($J=3-2$) emission at $\sim$ \arcs{1} resolution with the Submillimeter Array (SMA). Thermal dust emission is...
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...
HH 212: SMA Observations of a Remarkable Protostellar Jet (2007)
Lee, Chin-Fei, Ho, Paul T. P., Beuther, Henrik, Bourke, Tyler L., Hirano, Naomi, Shang, Hsien, ...
HH 212 is a nearby (460 pc) protostellar jet discovered in H$_2$ powered by a Class 0 source, IRAS 05413-0104, in the L1630 cloud of Orion. It is highly collimated and symmetric with matched pairs of...
HH 212: Submillimeter Array observations of a remarkable protostellar jet (2007)
Lee, Chin-Fei, Ho, Paul T. P., Hirano, Naomi, Beuther, Henrik, Bourke, Tyler L., Shang, Hsien, ...
HH 212 is a nearby (460 pc) protostellar jet discovered in H2 powered by a Class 0 source, IRAS 05413-0104. We have mapped it in 850 mum continuum, SiO(J=8-7), CO(J=3-2), SO(NJ=89-78), HCO+(J=4-3),...
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...
Infall and outflow around the HH 212 protostellar system (2006)
Lee, Chin-Fei, Ho, Paul T. P., Beuther, Henrik, Bourke, Tyler L., Zhang, Qizhou, Hirano, Naomi, ...
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, 12CO (J=2-1), 13CO...
SiO J=5--4 in the HH211 Protostellar Jet Imaged with the SMA (2005)
Hirano, Naomi, Liu, Sheng-Yuan, Shang, Hsien, Ho, Paul T. P., Huang, Hui-Chun, Kuan, Yi-Jehng, ...
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 emission comes from the...
Infall and Outflow around the HH 212 protostellar system (2005)
Lee, Chin-Fei, Ho, Paul T. P., Beuther, Henrik, Bourke, Tyler L., Zhang, Qizhou, Hirano, Naomi, ...
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, 12CO ($J=2-1$), 13CO...
High velocity bipolar outflow and disk-like envelope in the carbon star V Hya (2004)
Hirano, Naomi, Shinnaga, Hiroko, Fong, David, Keto, Eric, Patel, Nimesh, ...
Using the partially completed Submillimeter Array with five antennas, we have observed the CO J=2-1 and 3-2 emission from the envelope surrounding the carbon star V Hya. The high-angular resolution...
Submillimeter Array Observations of L1551 IRS 5 in CS (J=7-6) (2004)
Takakuwa, Shigehisa, Ohashi, Nagayoshi, Ho, Paul T. P., Qi, Chunhua, Wilner, David J., Zhang, Qizhou, ...
We have imaged the circumstellar envelope around the binary protostar L1551 IRS 5 in CS (J=7-6) and 343 GHz continuum emission at ~ 3 arcsec resolution using the Submillimeter Array. The continuum...
Interaction between the Outflow and the Core in IRAM 04191+1522 (2003)
Takakuwa, Shigehisa, Ohashi, Nagayoshi, Hirano, Naomi
We have carried out mapping observations of the molecular core associated with the young Class 0 protostar, IRAM 04191+1522, in the CH3OH (JK=2K-1K) and C34S (J=2-1) lines using the 45 m telescope at...
Submillimeter CO emission from shock-heated gas in the L1157 outflow (2001)
Hirano, Naomi, Taniguchi, Yoshiaki
We present the CO J=6-5, 4-3, and 3-2 spectra from the blueshifted gas of the outflow driven by the low-mass class 0 protostar in the L1157 dark cloud. Strong submillimeter CO emission lines with...
SiO Emission in the Multi-Lobe Outflow associated with IRAS 16293-2422 (2000)
Hirano, Naomi, Mikami, Hitomi, Umemoto, Tomofumi, Yamamoto, Satoshi, Taniguchi, Yoshiaki
We have mapped the thermal emission line of SiO (v = 0; J = 2-1) associated with the quadrupolar molecular outflow driven by the very cold far-infrared source IRAS 16293-2422. The SiO emission is...
The ortho-to-para ratio of ammonia in the L1157 outflow (1999)
Umemoto, Tomofumi, Mikami, Hitomi, Yamamoto, Satoshi, Hirano, Naomi
We have measured the ortho-to-para ratio of ammonia in the blueshifted gas of the L1157 outflow by observing the six metastable inversion lines from (J, K) = (1, 1) to (6, 6). The highly excited (5,...