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Here we describe the Red MSX Source (RMS) survey which is the largest, systematic, galaxy-wide search for massive young stellar objects (MYSOs) yet undertaken. Mid-IR bright point sources from the MSX satellite survey have been followed-up…

Astrophysics · Physics 2009-06-23 J. S. Urquhart , M. G. Hoare , S. L. Lumsden , R. D. Oudmaijer , T. J. T. Moore

We present the Red MSX Source (RMS) Survey, the largest statistically selected catalog of young massive protostars and HII regions to date. We outline the construction of the catalog using mid and near infrared color selection, as well as…

Astrophysics of Galaxies · Physics 2015-06-16 S. L. Lumsden , M. G. Hoare , J. S. Urquhart , R. D. Oudmaijer , B. Davies , J. C. Mottram , H. D. B. Cooper , T. J. T. Moore

We present a review of observational studies of high-mass star formation, based mainly on our own research. It includes surveys of high-mass star-forming regions in various molecular lines and in continuum, investigations of filamentary…

Astrophysics of Galaxies · Physics 2022-11-29 Igor I. Zinchenko

We have selected red MSX sources (RMS) that have the colours of massive young stellar objects (MYSOs). Our aim is to generate a large, systematically selected sample to address questions such as their luminosity function, lifetimes,…

Astrophysics · Physics 2007-05-23 MG Hoare , SL Lumsden , RD Oudmaijer , AL Busfield , TL King , TLJ Moore

Red Midcourse Space Experiment (MSX) Sources (RMSs) are regarded as excellent candidates of massive starforming regions. In order to characterize the chemical properties of massive star formation, we made a systematic study of 87 RMSs in…

Astrophysics of Galaxies · Physics 2017-01-10 Naiping Yu , Jinlong Xu

Abridged: We have used the well-selected sample of ~1750 embedded, young, massive stars identified by the RMS survey to investigate the Galactic distribution of recent massive star formation. We describe the various methods used to assign…

Astrophysics of Galaxies · Physics 2015-06-17 J. S. Urquhart , C. C. Figura , T. J. T. , Moore , M. G. Hoare , S. L. Lumsden , J. C. Mottram , M. A. Thompson , R. D. Oudmaijer

The Red MSX Source (RMS) survey is a multi-wavelength programme of follow-up observations designed to distinguish between genuine massive young stellar objects (MYSOs) and other embedded or dusty objects, such as ultra compact (UC) HII…

Astrophysics · Physics 2007-05-23 J. C. Mottram , J. S. Urquhart , M. G. Hoare , S. L. Lumsden , R. D. Oudmaijer

In order to distinguish between the various components of massive star forming regions (i.e. infalling, outflowing and rotating gas structures) within our own Galaxy, we require high angular resolution observations which are sensitive to…

Astrophysics · Physics 2007-10-23 P. D. Klaassen , C. D. Wilson

The Red MSX Source (RMS) survey has identified a large sample of massive young stellar objects (MYSOs) and ultra compact (UC) HII regions from a sample of ~2000 MSX and 2MASS colour selected sources. Using a recent catalogue of molecular…

Context. To further understand the processes involved in the formation of massive stars, we have undertaken a study of the gas dynamics surrounding three massive star forming regions. By observing the large scale structures at high…

Solar and Stellar Astrophysics · Physics 2015-05-27 P. D. Klaassen , C. D. Wilson , E. R. Keto , Q. Zhang , R. Galván-Madrid , H-Y. B. Liu

Observational evidence for inflowing motions in massive star forming regions has been extremely rare. We have made a spectroscopic survey of a sample of 28 massive star forming cores associated with water masers. An optically thick line of…

Astrophysics · Physics 2009-11-10 Jingwen Wu , Neal J. Evans

Context: The Red MSX Source (RMS) survey is a multi-wavelength campaign of follow-up observations of a colour-selected sample of candidate massive young stellar objects (MYSOs) in the galactic plane. This survey is returning the largest…

Astrophysics of Galaxies · Physics 2015-05-14 J. C. Mottram , M. G. Hoare , S. L. Lumsden , R. D. Oudmaijer , J. S. Urquhart , M. R. Meade , T. J. T. Moore , J. J. Stead

Studying outflows from young massive star-forming clusters allows one to deduce physical processes that lead to the formation of the most massive stars. I will review the current state of high-spatial-resolution interferometric (sub-)mm…

Astrophysics · Physics 2007-05-23 H. Beuther

Several models have predicted that stars could form inside galactic outflows and that this would be a new major mode of galaxy evolution. Observations of galactic outflows have revealed that they host large amounts of dense and clumpy…

Astrophysics of Galaxies · Physics 2019-03-06 R. Gallagher , R. Maiolino , F. Belfiore , N. Drory , R. Riffel , R. A. Riffel

We have searched for massive molecular outflows in a sample of high-mass star forming regions, and we have characterised both the outflow properties and those of their associated molecular clumps. With a sample composed largely of more…

Astrophysics of Galaxies · Physics 2015-05-13 A. Lopez-Sepulcre , C. Codella , R. Cesaroni , N. Marcelino , C. M. Walmsley

We have observed 99 mid-infrared-bright, massive young stellar objects and compact HII regions drawn from the Red MSX source (RMS) survey in the J=3$-$2 transition of $^{12}$CO and $^{13}$CO, using the James Clerk Maxwell Telescope. 89…

Solar and Stellar Astrophysics · Physics 2015-09-02 L. T. Maud , T. J. T. Moore , S. L. Lumsden , J. C. Mottram , J. S. Urquhart , M. G. Hoare

We present the results from NH$_{3}$ mapping observations towards 34 regions identified by the Red MSX Source (RMS) survey. We have used the Australia Telescope Compact Array to map ammonia (1,1) and (2,2) inversion emission spectra at a…

Astrophysics of Galaxies · Physics 2018-11-28 S. J. Billington , J. S. Urquhart , C. Figura , D. J. Eden , T. J. T. Moore

We analyse C$^{18}$O ($J=3-$2) data from a sample of 99 infrared-bright massive young stellar objects (MYSOs) and compact HII regions that were identified as potential molecular-outflow sources in the Red MSX source (RMS) survey. We extract…

Solar and Stellar Astrophysics · Physics 2015-09-02 L. T. Maud , S. L. Lumsden , T. J. T. Moore , J. C. Mottram , J. S. Urquhart , A. Cicchini

We address the problem of the origin of massive stars, namely the origin, path and timescale of the mass flows that create them. Based on extensive numerical simulations, we propose a scenario where massive stars are assembled by…

Astrophysics of Galaxies · Physics 2020-09-09 Paolo Padoan , Liubin Pan , Mika Juvela , Troels Haugbølle , Åke Nordlund

We present maps of seven sources selected from Klaassen & Wilson (2007a) in SiO (J=8-7) and HCO$^+$ and H$^{13}$CO$^+$ (J=4-3) which were obtained using HARP-B on the James Clerk Maxwell Telescope. We find that four out of our seven sources…

Astrophysics · Physics 2009-11-13 P. D Klaassen , C. D Wilson
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