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تسجيل مستخدم جديدPossible detection of interstellar glycine in the hot molecular core G10.47+0.03
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Amino acids are the essential keys in chemistry that contribute to the study of the formation of life. The complex organic molecule glycine (NH$_{2}$CH$_{2}$COOH) is the simplest amino acid that has been investigated in the interstellar medium for a long period to search for a potential connection between the Universe and the origin of life. In the last forty years, several attempts have failed to detect the interstellar glycine in the hot molecular cores and star-forming regions. We report the possible detection of the rotational emission lines of interstellar glycine with conformer I and II in the hot molecular core G10.47+0.03 between the frequency range of $ u$ = 158.6$-$160.4 GHz with Atacama Large Millimeter/Submillimeter Array (ALMA) observation. Under the Local Thermodynamic Equilibrium (LTE) condition, we apply the rotational diagram method to estimate the column density ($N$) and rotational temperature ($T_{rot}$) of the detected amino acid glycine. Using rotational diagram, we find the column density of glycine $N$(NH$_{2}$CH$_{2}$COOH) = 2.8$times$10$^{18}$ cm$^{-2}$ with rotational temperature $T_{rot}$ = 115.9 K. We also apply the Levenberg$-$Marquardt algorithm to extract the line parameters of detected emission lines of glycine.
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