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Detection of Vibrationally Excited CO in IRC+10216
Nimesh A. Patel, Ken H. Young, Sandra Brünken +3
Using the Submillimeter Array we have detected the J=3-2 and 2-1 rotational transitions from within the first vibrationally excited state of CO toward the extreme carbon star IRC+1…
Submillimeter narrow emission lines from the inner envelope of IRC+10216
Nimesh A. Patel, Ken H. Young, Sandra Brünken +8
A spectral-line survey of IRC+10216 in the 345 GHz band has been undertaken with the Submillimeter Array. Although not yet completed, it has already yielded a fairly large sample o…
A collimated, ionized bipolar structure and a high density torus in the young planetary nebula IRAS 17347-3139
D. Tafoya, Y. Gomez, N. A. Patel +5
We present observations of continuum (lambda = 0.7, 1.3, 3.6 and 18 cm) and OH maser (lambda = 18 cm) emission toward the young planetary nebula IRAS 17347-3139, which is one of th…
Infall and Outflow of Molecular Gas in Sgr B2
Sheng-Li Qin, Jun-Hui Zhao, James M. Moran +5
Observations of two HCO ( and ) lines and continuum emission at 1.3 mm towards Sgr B2(N) and Sgr B2(M) have been carried out with the SMA. The mos…
The Rapid Outbursting Star GM Cep: An EX-or in Tr 37?
Aurora Sicilia-Aguilar, Bruno Merin, Felix Hormuth +9
We present optical, IR and millimeter observations of the solar-type star 13-277, also known as GM Cep, in the 4 Myr-old cluster Tr 37. GM Cep experiences rapid magnitude variation…
The Circumstellar Structure and Excitation Effects around the Massive Protostar Cepheus A HW 2
J. M. Torrelles, N. A. Patel, S. Curiel +3
We report SMA 335 GHz continuum observations with angular resolution of ~0.''3, together with VLA ammonia observations with ~1'' resolution toward Cep A HW 2. We find that the flat…