Too large and overlooked? Extended free–free emission towards massive star formation regions

QR Code

Too large and overlooked? Extended free–free emission towards massive star formation regions

We present Australia Telescope Compact Array observations towards six massive star formationregions, which, from their strong 24 GHz continuum emission but no compact 8 GHzcontinuum emission, appeared good candidates for hypercompact HII regions. However, theproperties of the ionized gas derived fro...

Full description

Bibliographic Details
Main Authors:	Longmore, S., Burton, M., Keto, E., Kurtz, S., Walsh, Andrew
Format:	Journal Article
Published:	Oxford University Press 2009
Subjects:	ISM: evolution stars: evolution radio continuum: ISM HII - regions stars: early-type stars: formation radio lines: ISM
Online Access:	http://mnras.oxfordjournals.org/content/399/2/861.full.pdf+html http://hdl.handle.net/20.500.11937/9721

Similar Items

Multi-generation massive star-formation in NGC 3576
by: Purcell, C., et al.
Published: (2009)

The H2O Southern Galactic Plane Survey: NH3 (1,1) and (2,2) catalogues
by: Purcell, C., et al.
Published: (2012)

Candidate super star cluster progenitor gas clouds possibly triggered by close passage to Sgr A*
by: Longmore, S., et al.
Published: (2013)

Turbulence Sets the Initial Conditions for Star Formation in High-Pressure Environments
by: Rathborne, J., et al.
Published: (2014)

Molecular line mapping of the giant molecular cloud associated with RCW 106-IV. Ammonia towards dust emission
by: Lowe, V., et al.
Published: (2014)

The earliest phases of high-mass star formation: the NGC 6334-NGC 6357 complex
by: Russeil, D., et al.
Published: (2010)

Recent Science from Australian Large-Scale Millimetre Mapping Projects: Proceedings from a Swinburne University Workshop
by: Bains, I., et al.
Published: (2009)

The H2O Southern Galactic Plane Survey (HOPS) – I. Techniques and H2O maser data
by: Walsh, Andrew, et al.
Published: (2011)

Physical and chemical conditions in methanol maser selected hot cores and UCH II regions
by: Purcell, C., et al.
Published: (2009)

Variations in the Galactic star formation rate and density thresholds for star formation
by: Longmore, S., et al.
Published: (2013)

Cyanopolyynes in hot cores: modelling G305.2+0.2
by: Chapman, J., et al.
Published: (2009)

MALT90: The Millimetre Astronomy Legacy Team 90 GHz Survey
by: Jackson, J., et al.
Published: (2013)

The ESO Diffuse Interstellar Bands Large Exploration Survey EDIBLES: I. Project description, survey sample and quality assessment
by: Cox, Nick L.J., et al.
Published: (2017)

New detections of HC5N towards hot cores associated with 6.7 GHz methanol masers
by: Green, C., et al.
Published: (2014)

Accurate water maser positions from HOPS
by: Walsh, Andrew, et al.
Published: (2014)

Pilot observations for MALT-45: a Galactic plane survey at 7 mm
by: Jordan, C., et al.
Published: (2013)

Spectral imaging of the central molecular zone in multiple 7-mm molecular lines
by: Jones, P., et al.
Published: (2013)

Spectral imaging of the Central Molecular Zone in multiple 3-mm molecular lines
by: Jones, P., et al.
Published: (2012)

A multiwavelength exploration of the [C II]/IR ratio in H-ATLAS/GAMA galaxies out to z = 0.2
by: Ibar, E., et al.
Published: (2015)

The first resolved imaging of milliarcsecond-scale jets in Circinus X-1
by: Miller-Jones, James, et al.
Published: (2012)

Evidence for deceleration in the radio jets of GRS1915+105?
by: Miller-Jones, James, et al.
Published: (2007)

Radio observations of candidate magnetic O stars
by: Schnerr, R., et al.
Published: (2007)

Planck 2015 results. XXVIII. The Planck catalogue of galactic cold clumps
by: Ade, P.A.R., et al.
Published: (2016)

AMI-LA radio continuum observations of Spitzer c2d small clouds and cores: Serpens region
by: Scaife, A., et al.
Published: (2012)

High-resolution AMI Large Array imaging of spinning dust sources: spatially correlated 8 µm emission and evidence of a stellar wind in L675
by: Scaife, A., et al.
Published: (2010)

Absorption filaments toward the massive clump G0.253+0.016
by: Bally, J., et al.
Published: (2014)

The 6-GHz methanol multibeam maser catalogue – I. Galactic Centre region, longitudes 345° to 6°
by: Caswell, J., et al.
Published: (2010)

VAST: An ASKAP survey for variables and slow transients
by: Murphy, Tara, et al.
Published: (2013)

Structure in the radio counterpart to the 2004 December 27 giant flare from SGR 1806-20
by: Fender, R., et al.
Published: (2006)

Spectral imaging of the Sagittarius B2 region in multiple 3-mm molecular lines with the Mopratelescope
by: Jones, P., et al.
Published: (2008)

Coupled Radio and X-Ray Emission and Evidence for Discrete Ejecta in the Jets of SS 433
by: Miller-Jones, James, et al.
Published: (2008)

Zooming in on a sleeping giant: milliarcsecond High Sensitivity Array imaging of the black hole binary V404 Cyg in quiescence
by: Miller-Jones, James, et al.
Published: (2008)

A Pilot Survey for the H2O Southern Galactic Plane Survey
by: Walsh, Andrew, et al.
Published: (2008)

Opacity effects and shock-in-jet modelling of low-level activity in Cygnus X-3
by: Miller-Jones, James, et al.
Published: (2009)

An accurate position for the black hole candidate XTE J1752-223: re-interpretation of the VLBI data
by: Miller-Jones, James, et al.
Published: (2011)

Discovery of carbon radio recombination lines in absorption towards Cygnus A
by: Oonk, J., et al.
Published: (2014)

LOFAR detections of low-frequency radio recombination lines towards Cassiopeia A
by: Asgekar, A., et al.
Published: (2013)

The spatial structure of young stellar clusters. I. Subclusters
by: Kuhn, M., et al.
Published: (2014)

A Deep Radio Survey of Hard State and Quiescent Black Hole X-Ray Binaries
by: Miller-Jones, James, et al.
Published: (2011)

The influence of spin on jet power in neutron star X-ray binaries
by: Migliari, S., et al.
Published: (2011)