Haystack Observations of CS and CH3OH Toward Star Forming Regions

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E. Jordan
E. Araya
P. Hofner
M. Mateen
S. Kurtz

Abstract

We report ¹²CS J= 1 → 0 observations toward 20 star forming regions conducted with the MIT 37m Haystack telescope. Three of the sources were also observed in the ¹³CS J= 1 → 0 line, and five sources where observed in the CH₃OH JK = 70 → 6¹ A+ transition at 44 GHz. We detected ¹³CS and CH₃OH emission toward all sources observed, and ¹²CS emission toward 19 of the 20 sources in the sample, 11 of which are new detections. We found a strong correlation between the ¹²CS FWHM and the source distance, indicating the potential use of ¹²CS J= 1 → 0 emission as a tool to estimate distances to star forming regions. We also report detection of CH₃OH 44 GHz maser variability in most of the observed sources.

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How to Cite
Jordan, E., Araya, E., Hofner, P., Mateen, M., & Kurtz, S. (2012). Haystack Observations of CS and CH3OH Toward Star Forming Regions. Revista Mexicana De Astronomía Y Astrofísica, 44(1), 45–55. Retrieved from https://www.revistas.unam.mx/index.php/revmexaa/article/view/23731