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Related papers: Methanol maps of low-mass protostellar systems: th…

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We report the first detection of a methanol maser in the 10(1)-9(2)A- transition at 23.4 GHz, discovered during the H2O southern Galactic Plane Survey (HOPS) with the 22-m Mopra radio telescope. In the region covered by HOPS, the 23.4 GHz…

Astrophysics of Galaxies · Physics 2015-05-20 M. A. Voronkov , A. J. Walsh , J. L. Caswell , S. P. Ellingsen , S. L. Breen , S. N. Longmore , C. R. Purcell , J. S. Urquhart

Methanol masers at 6.7 GHz are the brightest of class II methanol masers and have been found exclusively towards massive star forming regions. These masers can thus be used as a unique tool to probe the early phases of massive star…

Astrophysics of Galaxies · Physics 2020-01-08 Sonu Tabitha Paulson , Jagadheep D. Pandian

As the recent publication by Breen et al (2013) found Class II methanol masers are exclusively associated with high mass star forming regions. Based on the positions of the Class I and II methanol and H$_{2}$O masers, UC H II regions and…

Astrophysics of Galaxies · Physics 2014-11-19 Hontas Farmer

Methanol, the simplest complex organic molecule found in space, is considered a key compound necessary for the formation of chemical species of prebiotic interest. Methanol detections in protoplanetary disks remain scarce, even though it is…

Solar and Stellar Astrophysics · Physics 2026-04-29 Alessandro Soave , Margot Leemker , Stefano Facchini , Luke Maud , Kazi Lucie Jessica Rygl , Leonardo Testi

Recently, the extremely sensitive torsion-rotation transitions in methanol have been used to set a tight constraint on a possible variation of the proton-to-electron mass ratio over cosmological time scales. In order to improve this…

We have examined methanol emission from Orion KL with of the {\em Herschel}/HIFI instrument, and detected two methanol bands centered at 524 GHz and 1061 GHz. The 524 GHz methanol band (observed in HIFI band 1a) is dominated by the isolated…

6.7 GHz methanol masers are the brightest of class II methanol masers that are regarded as excellent signposts in the formation of young massive stars. We present here a molecular line study of 68 6.7 GHz methanol maser hosts chosen from…

Astrophysics of Galaxies · Physics 2021-11-09 Sonu Tabitha Paulson , Jagadheep D. Pandian

A survey of young bipolar outflows in regions of low-to-intermediate-mass star formation has been carried out in two class I methanol maser transitions: 7_0-6_1A+ at 44 GHz and 4_{-1}-3_0E at 36 GHz. We detected narrow features towards NGC…

Astrophysics of Galaxies · Physics 2015-05-18 S. V. Kalenskii , L. E. B. Johansson , P. Bergman , S. Kurtz , P. Hofner , C. M. Walmsley , V. I. Slysh

The Gould Belt Legacy Survey (GBS) on the JCMT has observed a region of 260 square arcminutes in 12CO J=3--2 emission, and a 190 square arcminute subset of this in 13CO and C18O towards the Serpens molecular cloud. We examine the global…

We have selected the positions of 54 6.7GHz methanol masers from the Methanol Multibeam Survey catalogue, covering a range of longitudes between $20^{\circ}$ and $34^{\circ}$ of the Galactic Plane. These positions were mapped in the J=3-2…

We report the results of subparsec-scale submillimeter observations towards an embedded high-mass young stellar object in the Small Magellanic Cloud (SMC) with ALMA. Complementary infrared data obtained with the AKARI satellite and the…

Methanol and complex organic molecules have been found in cold starless cores, where a standard warm-up scenario would not work because of the absence of heat sources. A recent chemical model attributed the presence of methanol and large…

Astrophysics of Galaxies · Physics 2021-07-14 Miwa Goto , A. I. Vasyunin , B. M. Giuliano , I. Jiménez-Serra , P. Caselli , C. G. Román-Zúñiga , J. Alves

Recent high-dispersion spectroscopy from ground-based telescopes and high-precision spectroscopy from space observatories have enabled atmospheric observations of substellar objects, such as brown dwarfs and hot gaseous exoplanets, with…

Earth and Planetary Astrophysics · Physics 2025-03-31 Ko Hosokawa , Takayuki Kotani , Hajime Kawahara , Yui Kawashima , Kento Masuda , Aoi Takahashi , Kazuo Yoshioka

A southern hemisphere survey of methanol emission sources has been carried out using the ATNF Mopra millimetre telescope. 85 sources, the majority of them masers, have been detected in the 8(0)-7(1)A+ transition of methanol at 95 GHz.…

Astrophysics · Physics 2009-10-31 I. E. Val'tts , S. P. Ellingsen , V. I. Slysh , S. V. Kalenskii , R. Otrupcek , G. M. Larinov

Deuterated molecules have been detected and studied toward Orion BN/KL in the past decades, mostly with single-dish telescopes. However, high angular resolution data are critical not only for interpreting the spatial distribution of the…

Astrophysics of Galaxies · Physics 2015-06-05 T. -C. Peng , D. Despois , N. Brouillet , B. Parise , A. Baudry

We observed 14 methanol transitions near lambda=2 mm in Galactic star-forming regions. Broad, quasi-thermal J(0)-J(-1)E methanol lines near 157 GHz were detected toward 73 sources. Together with the 6(-1)-5(0)E and 5(-2)-6(-1)E lines at 133…

Astrophysics · Physics 2009-10-31 V. I. Slysh , S. V. Kalenskii , I. E. Val'tts , V. V. Golubev , K. Mead

Methanol is a common component of interstellar and circumstellar ice mantles and is often used as an evolution indicator in star-forming regions. The observations of gas-phase methanol in the interiors of dense molecular clouds at…

Instrumentation and Methods for Astrophysics · Physics 2016-07-27 Gustavo A. Cruz-Diaz , Rafael Martín-Doménech , Guillermo M. Muñoz Caro , Y. -J. Chen

Saturn's moon Enceladus has vents emerging from a sub-surface ocean, offering unique probes into the liquid environment. These vents drain into the larger neutral torus in orbit around Saturn. We present a methanol (CH3OH) detection…

Earth and Planetary Astrophysics · Physics 2017-09-28 E. Drabek-Maunder , J. Greaves , H. J. Fraser , D. L. Clements , L. -N. Alconcel

We present the first astrophysical detection of methanol (CH3OH) in the torsional band near 25 um. Using high resolution mid-infrared (MIR) spectroscopy, we identified over seventy gas-phase CH3OH absorption lines between 20 and 28 um…

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