Skip to main content Accessibility help
×
Home

SuperMALT: Physical and Chemical Properties of Massive and Dense Clumps

  • Sudeep Neupane (a1), Guido Garay (a1), Yanett Contreras (a2) and SuperMALT Team (a3)

Abstract

The SuperMALT survey is observing 76 MALT90 clumps at different evolutionary stages (from pre-stellar or quiescent to HII) in high excitation molecular lines and key isotopomers using the Apex 12m telescope with an angular resolution of ∼20” and a velocity resolution of ∼0.1 km/s. The aim of this survey is to determine the physical, chemical, and kinematical properties of the gas within clumps as they evolve. Here we report some preliminary results based on observations of the J=3-2 & 4-3 lines of HNC, HCN, HCO+, N2H+ and of the J=3-2 line of the isotopologue H13CO+. We find that the morphologies and line profiles vary with the evolutionary stage of the clumps. The average line width increases from quiescent to HII clumps while line ratios show hint of chemical differences among the various evolutionary stages.

Copyright

References

Hide All
Benjamin, Robert A., Churchwell, E., Babler, Brian L., et al., 2003, PASP, 115, 953
Carey, S. J., Noriega-Crespo, A., Mizuno, D. R., et al., 2009, PASP, 121, 76
Contreras, Y., Rathborne, Jill M., Guzman, A., et al., 2017, MNRAS, 466, 340
Faúndez, S., Bronfman, L., Garay, G., Chini, R., Nyman, L., & May, J., 2004 ApJ, 426, 97
Foster, Jonathan B., Jackson, James M., Barnes, Peter J., et al., 2011, ApJ, 197, 25
Garay, G., Faúndez, S., Mardones, D., Bronfman, L., Chini, R., & Nyman, L., 2004, ApJ, 610, 313
Guzmn, Andrs E., Sanhueza, P., Contreras, Y., et al., 2015, ApJ, 815, 130
Jackson, J. M., Rathborne, J. M., Foster, J. B., et al., 2013, PASP, 30, 57
Molinari, S., Swinyard, B., Bally, J., Barlow, M., et al., 2010, PASP, 122, 314
Rathborne, J. M., Whitaker, J. S., & Jackson, J. M., 2016, PASP, 33, 30
Schuller, F., Menten, K. M., Contreras, Y., et al., 2009, A&A, 504, 415
Schoier, F. L., van der Tak, F. F. S., et al., 2005, A&A, 432, 369
MathJax
MathJax is a JavaScript display engine for mathematics. For more information see http://www.mathjax.org.

Keywords

SuperMALT: Physical and Chemical Properties of Massive and Dense Clumps

  • Sudeep Neupane (a1), Guido Garay (a1), Yanett Contreras (a2) and SuperMALT Team (a3)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed