Table 2
Abundances (relative to H2) of parent molecules other than H2 and CO derived from observations of M, S, and C stars.
Notes. The cases in which observed abundances are much higher than expected from chemical equilibrium are highlighted in blue.
References. (1) Maercker et al. (2016). (2) Schöier et al. (2011). (3) Danilovich et al. (2014). (4) Decin et al. (2010). (5) Neufeld et al. (2010). (6) Fonfría et al. (2008). (7) Schöier et al. (2013). (8) Tsuji et al. (1997). (9) Keady & Ridgway (1993). (10) Wong et al. (2018). (11) Schmidt et al. (2016). (12) Fonfría et al. (2017). (13) Massalkhi et al. (2020). (14) Danilovich et al. (2018). (15) Massalkhi et al. (2019). (16) Danilovich et al. (2017). (17) Agúndez et al. (2012). (18) Yamamura et al. (2000). (19) González Delgado et al. (2003). (20) Ramstedt et al. (2009), V386 Cep removed. (21) Massalkhi et al. (2018). (22) Cernicharo et al. (2015). (23) Agúndez et al. (2007). (24) Ziurys et al. (2018). (25) Milam et al. (2008). (26) Agúndez et al. (2014b). (27) Agúndez et al. (2011). (28) Milam et al. (2007). (29) Quintana-Lacaci et al. (2016). (30) Decin et al. (2017). (31) Kamiński et al. (2016). (32) Kamiński et al. (2017). (33) Quintana-Lacaci et al. (2017). (34) Pulliam et al. (2010).
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