Editing Propyne (section)

== In Astrophysics ==
Propyne has been detected in multiple astrophysical objects following its first observation in 1973 in the [[Galactic Center|galactic center]] [[Molecular cloud|giant molecular cloud]] [[Sagittarius B2|Sgr B2]] using [[radio astronomy]] techniques.<ref>{{Cite journal |last1=Snyder |first1=L. E. |last2=Buhl |first2=D. |date=May 1973 |title=Interstellar Methylacetylene and Isocyanic Acid |url=https://www.nature.com/articles/physci243045a0 |journal=Nature Physical Science |language=en |volume=243 |issue=125 |pages=45–46 |doi=10.1038/physci243045a0 |issn=2058-1106|url-access=subscription }}</ref> Propyne has been proposed to act as a precursor molecule to the formation of [[Polycyclic aromatic hydrocarbon|PAHs]] in space, such as [[indene]].<ref>{{Cite journal |last1=Abplanalp |first1=Matthew J. |last2=Góbi |first2=Sándor |last3=Kaiser |first3=Ralf I. |date=2019-03-06 |title=On the formation and the isomer specific detection of methylacetylene (CH3CCH), propene (CH3CHCH2), cyclopropane (c-C3H6), vinylacetylene (CH2CHCCH), and 1,3-butadiene (CH2CHCHCH2) from interstellar methane ice analogues |url=https://pubs.rsc.org/en/content/articlelanding/2019/cp/c8cp03921f |journal=Physical Chemistry Chemical Physics |language=en |volume=21 |issue=10 |pages=5378–5393 |doi=10.1039/C8CP03921F |issn=1463-9084|url-access=subscription }}</ref>

Propyne has been detected by [[infrared]] [[spectroscopy]] in the [[Redox|chemically reducing]] [[atmosphere]]s of the [[Solar System|outer planets]] in the [[Solar System]], including on [[Jupiter]] in 2000 <ref>{{Citation |last1=Fouchet |first1=T. |title=Jupiter's hydrocarbons observed with ISO-SWS: vertical profiles of C2H6 and C2H2, detection of CH3C2H |date=2000 |last2=Lellouch |first2=E. |last3=Bezard |first3=B. |last4=Feuchtgruber |first4=H. |last5=Drossart |first5=P. |last6=Encrenaz |first6=T.|arxiv=astro-ph/0002273 }}</ref> and on [[Saturn]] in 1997,<ref>{{Cite journal |last1=de Graauw |first1=T. |last2=Feuchtgruber |first2=H. |last3=Bezard |first3=B. |last4=Drossart |first4=P. |last5=Encrenaz |first5=T. |last6=Beintema |first6=D. A. |last7=Griffin |first7=M. |last8=Heras |first8=A. |last9=Kessler |first9=M. |last10=Leech |first10=K. |last11=Lellouch |first11=E. |last12=Morris |first12=P. |last13=Roelfsema |first13=P. R. |last14=Roos-Serote |first14=M. |last15=Salama |first15=A. |date=1997-05-01 |title=First results of ISO-SWS observations of Saturn: detection of CO_2_, CH_3_C_2_H, C_4_H_2_ and tropospheric H_2_O. |url=https://ui.adsabs.harvard.edu/abs/1997A&A...321L..13D/abstract |journal=Astronomy and Astrophysics |volume=321 |pages=L13–L16 |bibcode=1997A&A...321L..13D |issn=0004-6361}}</ref> both using the [[Infrared Space Observatory]]; on Titan in 1981 using [[Voyager program|Voyager's]] [[Infrared interferometer spectrometer and radiometer|IRIS]] instrument;<ref>{{Cite journal |last1=Maguire |first1=W. C. |last2=Hanel |first2=R. A. |last3=Jennings |first3=D. E. |last4=Kunde |first4=V. G. |last5=Samuelson |first5=R. E. |date=August 1981 |title=C3H8 and C3H4 in Titan's atmosphere |url=https://www.nature.com/articles/292683a0 |journal=Nature |language=en |volume=292 |issue=5825 |pages=683–686 |doi=10.1038/292683a0 |issn=1476-4687}}</ref> and on the [[ice giant]]s [[Uranus]] in 2006 <ref>{{Cite journal |last1=Burgdorf |first1=Martin |last2=Orton |first2=Glenn |last3=van Cleve |first3=Jeffrey |last4=Meadows |first4=Victoria |last5=Houck |first5=James |date=2006-10-01 |title=Detection of new hydrocarbons in Uranus' atmosphere by infrared spectroscopy |url=https://www.sciencedirect.com/science/article/abs/pii/S001910350600203X |journal=Icarus |volume=184 |issue=2 |pages=634–637 |doi=10.1016/j.icarus.2006.06.006 |issn=0019-1035|url-access=subscription }}</ref> and on [[Neptune]] in 2008 <ref>{{Cite journal |last1=Meadows |first1=Victoria S. |last2=Orton |first2=Glenn |last3=Line |first3=Michael |last4=Liang |first4=Mao-Chang |last5=Yung |first5=Yuk L. |last6=Van Cleve |first6=Jeffrey |last7=Burgdorf |first7=Martin J. |date=2008-10-01 |title=First Spitzer observations of Neptune: Detection of new hydrocarbons |url=https://linkinghub.elsevier.com/retrieve/pii/S0019103508002273 |journal=Icarus |volume=197 |issue=2 |pages=585–589 |doi=10.1016/j.icarus.2008.05.023 |issn=0019-1035|url-access=subscription }}</ref> using the [[Spitzer Space Telescope|Spitzer]] space telescope.