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Exploring molecular complexity with ALMA (EMoCA): Alkanethiols and alkanols in Sagittarius B2(N2)
H. S. P. Müller, A. Belloche, L. -H. Xu +7
Over the past five decades, radio astronomy has shown that molecular complexity is a natural outcome of interstellar chemistry, in particular in star forming regions. However, the…
Exploring Molecular Complexity with ALMA (EMoCA): Deuterated complex organic molecules in Sagittarius B2(N2)
A. Belloche, H. S. P. Müller, R. T. Garrod +1
Deuteration is a powerful tracer of the history of the cold prestellar phase in star forming regions. Apart from methanol, little is known about deuterium fractionation of complex…
A study of the CH isomers and isotopologues: first interstellar detection of HDCCC
S. Spezzano, H. Gupta, S. Brünken +8
The partially deuterated linear isomer HDCCC of the ubiquitous cyclic carbene (-CH) was observed in the starless cores TMC-1C and L1544 at 96.9 GHz, and a confirming lin…
The environment of the strongest galactic methanol maser
A. Sanna, K. M. Menten, C. Carrasco-González +6
The high-mass star-forming site G009.62+00.20E hosts the 6.7 GHz methanol maser source with the greatest flux density in the Galaxy which has been flaring periodically over the las…
Molecular ions in the O-rich evolved star OH231.8+4.2: HCO,HCO and first detection of SO, NH, and HO
C. Sánchez Contreras, L. Velilla Prieto, M. Agúndez +8
OH 231.8+4.2, a bipolar outflow around a Mira-type variable star, displays a unique molecular richness amongst circumstellar envelopes (CSEs) around O-rich AGB and post-AGB stars.…
ALMA and VLA measurements of frequency-dependent time lags in Sagittarius A*: evidence for a relativistic outflow
Christiaan D. Brinkerink, Heino Falcke, Casey J. Law +12
Radio and mm-wavelength observations of Sagittarius A* (Sgr A*), the radio source associated with the supermassive black hole at the center of our Galaxy, show that it behaves as a…