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- Institute of Astronomy and Astrophysics, Academia SinicaTW1.4k papers
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22 papers · 2 filters
The 9.7 and 18 um silicate absorption profiles towards diffuse and molecular cloud lines-of-sight
J. M. van Breemen, M. Min, J. E. Chiar +8
Studying the composition of dust in the interstellar medium (ISM) is crucial in understanding the cycle of dust in our galaxy. The mid-infrared spectral signature of amorphous sili…
Carbon-Chain and Organic Molecules around Very Low-Luminosity Protostellar Objects of L1521F-IRS and IRAM 04191+1522
Shigehisa Takakuwa, Nagayoshi Ohashi, Yuri Aikawa
We have observed dense gas around the Very Low-Luminosity Ob jects (VeLLOs) L1521F-IRS and IRAM 04191+1522 in carbon-chain and organic molecular lines with the Nobeyama 45 m telesc…
UWISH2 -- The UKIRT Widefield Infrared Survey for H2
D., Froebrich, C. J. +56
We present the goals and preliminary results of an unbiased, near-infrared, narrow-band imaging survey of the First Galactic Quadrant (10deg<l<65deg ; -1.3deg<b<+1.3deg). This area…
Discovery of an expanding molecular bubble in Orion BN/KL
Luis A. Zapata, Laurent Loinard, Johannes Schmid-Burgk +3
During their infancy, stars are well known to expel matter violently in the form of well-defined, collimated outflows. A fairly unique exception is found in the Orion BN/KL star-fo…
1.3 mm Wavelength VLBI of Sagittarius A*: Detection of Time-Variable Emission on Event Horizon Scales
Vincent L. Fish, Sheperd S. Doeleman, Christopher Beaudoin +27
Sagittarius A*, the ~4 x 10^6 solar mass black hole candidate at the Galactic Center, can be studied on Schwarzschild radius scales with (sub)millimeter wavelength Very Long Baseli…
The magnetic field in the NGC 2024 FIR 5 dense core
Felipe de O. Alves, Josep M. Girart, Shih-Ping Lai +2
We used the Submillimeter Array (SMA) to observe the thermal polarized dust emission from the protostellar source NGC 2024 FIR 5. The polarized emission outlines a partial hourglas…