AN ALMA IMAGING STUDY OF METHYL FORMATE (HCOOCH3) IN TORSIONALLY EXCITED STATES TOWARD ORION KL
نویسندگان
چکیده
منابع مشابه
Detection of vibrationally excited methyl formate in W51 e2
Context. Hot cores in molecular clouds, such as Orion KL, Sgr B2, W51 e1/e2, are characterized by the presence of molecules at temperature high enough to significantly populate their low-frequency vibrationally excited states. For complex organic molecules, characterized by a dense spectrum both in the ground state and in the excited states, such as methyl formate, ethyl cyanide or dimethyl eth...
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We report on the tentative detection of trans ethyl methyl ether (tEME), t-CH3CH2OCH3, through the identification of a large number of rotational lines from each one of the spin states of the molecule towards Orion KL. We also search for gauche-trans-n-propanol, Gt-n-CH3CH2CH2OH, an isomer of tEME in the same source. We have identified lines of both species in the IRAM 30 m line survey and in t...
متن کاملGlobal assignment and extension of millimeter- and submillimeter-wave spectral database of C1-methyl formate (HCOOCH3) in the ground and first excited states
A compilation of the available spectroscopic millimeter and submillimeterwave data of the ground and first excited states of C1-methyl formate has been carried out. The exhaustive analysis of the available transition lines of HCOOCH3 (Willaert et al. 2006; Maeda et al. 2008a,b; Carvajal et al. 2009) has led to the assignment of 7457 spectral lines by means of a global fit of 45 parameters, usin...
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We present the first detection of interstellar acetone [(CH3)2CO] toward the high mass star forming region Orion-KL and the first detection of vibrationally excited (CH3)2CO in the ISM. Using the BIMA Array, 28 emission features that can be assigned to 54 acetone transitions were detected. Furthermore, 37 of these transitions have not been previously observed in the ISM. The observations also s...
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We present high resolution, Combined Array for Research in Millimeter-Wave Astronomy (CARMA), λ=1mm observations of several molecular species toward Orion-KL. These are the highest spatial and spectral resolution 1mm observations of these molecules to date. Our observations show that ethyl cyanide [C2H5CN] and vinyl cyanide [C2H3CN] originate from multiple cores near the Orion hot core and IRc7...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2015
ISSN: 1538-4357
DOI: 10.1088/0004-637x/803/2/97