Young Stars and Outflows in the globule IC 1396
نویسنده
چکیده
We have observed the IC 1396 W globule in a narrow band filter centred on the 1 – 0 S(1) line of molecular hydrogen and in the J, H, K’ broad-band filters. Three molecular hydrogen outflows could be identified by means of H2 emission. The projected axes of the flows are parallel to each other. By means of the NIR images and IRAS/ISOPHOT data we could identify the driving sources of all outflows, the possible Class 0 source IRAS21246+5743 and two red objects (Class 1/2). NIR photometry reveals an embedded cluster of young stars in the globule, coinciding with FIR emission. Other young stars in the field are more or less clustered in several small groups, an indication that star formation takes place at different positions at the same time in such small globules.
منابع مشابه
Star formation in globules in IC 1396
We present a large-scale study of the IC 1396 region using new deep NIR and optical images, complemented by 2MASS data. For ten globules in IC 1396 we determine (H-K, J-H) colour-colour diagrams and identify the young stellar population. Five of these globules contain a rich population of reddened objects, most of them probably young stellar objects. Two new HH objects (HH 865 and HH 864) could...
متن کاملThe X - ray view of the central part of IC 1396
The galactic HII region IC 1396 contains one of the youngest known open star clusters Trumpler 37, Tr 37. Its very core hosts the multiple O-star system HD 206267, which in many respects is similar to the Orion Trapezium. So far X-ray emission has been observed only from HD 206267 with the Einstein observatory. Soft X-ray observations with the ROSAT PSPC revealed X-ray emission from an area of ...
متن کاملar X iv : a st ro - p h / 96 03 12 0 v 1 2 1 M ar 1 99 6 HI “ Tails ” from Cometary Globules in IC 1396
IC 1396 is a relatively nearby (750 pc), large (>2 •), HII region ionized by a single O6.5V star and containing bright-rimmed cometary globules. We have made the first arcmin resolution images of atomic hydrogen toward IC 1396, and have found remarkable " tail "-like structures associated with some of the globules and extending up to 6.5 pc radially away from the central ionizing star. These HI...
متن کاملEffect of the temperature profile of the accretion disk on the structure of jets and outflows around protostars
Magnetic fields play an important role in creating, driving, and in the evolution of outflows and jets from protostars and accretion disks. On the other hand, the temperature profile of the accretion disks may also affect the structure of the magnetic field and outflows. In this paper, we use the self-similar method in cylindrical coordinates to investigate the effect of the temperature profile...
متن کاملProtostellar clusters in intermediate mass ( IM ) star forming regions
Context. The transition between the low density groups of T Tauri stars and the high density clusters around massive stars occurs in the intermediate-mass (IM) range (M * ∼2–8 M ⊙). High spatial resolution studies of IM young stellar objects (YSO) can provide important clues to understand the clustering in massive star forming regions. Aims. Our aim is to search for clustering in IM Class 0 pro...
متن کامل