Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005apj...629..288c&link_type=abstract
The Astrophysical Journal, Volume 629, Issue 1, pp. 288-298.
Astronomy and Astrophysics
Astronomy
7
Ism: Individual: Alphanumeric: Afgl 5142, Ism: Jets And Outflows, Ism: Lines And Bands, Galaxy: Open Clusters And Associations: General
Scientific paper
Near-infrared JHK' and H2 v=1-0 S(1) imaging observations of the star-forming region AFGL 5142 are presented. A cluster of young stars is confirmed to be embedded in the dense molecular cloud core. Many point sources are newly detected. The cluster's K'-magnitude distribution and [H-K'] color peak have brighter and redder magnitudes than those outside the cluster. Many of the cluster sources exhibit infrared excesses typical of T Tauri stars, Herbig Ae/Be stars, and protostars. The observations also reveal new H2 line emission around the cluster, exhibiting several jets, filaments, and a faint elliptical structure. The jets are associated with the CO outflows in the region. The powering sources of the jets, the CO outflows, and the small faint elliptical structure are identified and analyzed individually. The strong H2 jets and faint diffuse emission further confirm that the cluster is in an early stage of evolution.
Chen Yafeng
Sato Shuji
Yang Ji
Yao Yongqiang
Zeng Qin
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