Triggered star formation in the CO shell G126.1-0.8-14

S. CICHOWOLSKI; M. E. ORTEGA; L. SUAD; M. ARNAL

Mar del plata

Congreso; 55 Reunión Anual de la AAA; 2012

IAR

G126.1–0.8–14 is a molecular shell located in the Orion arm,at a distance of about 1 kpc. The HII region Sh2-187 is located over theborder of this shell. Previous works show that Sh2-187 is a small ( 9’)and young ( 2 × 105 yr) ionized region that shows signs of recent starformation in its surroundings. On the other hand, based on color criteria,we have found several infrared (MSX and IRAS) sources candidates ofbeing young stellar objects (YSO) or ultracompact HII regions (UCHII)located projected onto the shell. In this work we present an analysis ofthe possible origin of G126.1–0.8–14 and its possible roll in the formationof new stars.