DISTINCT CHEMICAL REGIONS IN THE “PRESTELLAR” INFRARED DARK CLOUD G028.23–00.19

We have observed the Infrared Dark Cloud (IRDC) G028.23-00.19 at 3.3 mm using the Combined Array for Research in Millimeter-wave Astronomy. In its center, the IRDC hosts one of the most massive (~1520 M sub([middot in circle])) quiescent, cold (12 K) clumps known (MM1). The low temperature, high NH...

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Veröffentlicht in:	The Astrophysical journal 2013-08, Vol.773 (2), p.1-14
Hauptverfasser:	Sanhueza, Patricio, Jackson, James M, Foster, Jonathan B, Jimenez-Serra, Izaskun, DiRienzo, William J, Pillai, Thushara
Format:	Artikel
Sprache:	eng
Schlagworte:	ABUNDANCE ASTROPHYSICS, COSMOLOGY AND ASTRONOMY Clouds Clumps COLLISIONS COSMIC DUST EMISSION GALAXIES Gas phases Infrared INFRARED RADIATION LINE WIDTHS METHANOL Methyl alcohol NONLUMINOUS MATTER Silicon dioxide SILICON OXIDES SPATIAL DISTRIBUTION Stars TEMPERATURE RANGE 0065-0273 K VELOCITY
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