Learn how cosmic 'seeds' grow into massive stars
Debunking earlier theories that big stars form within very massive, isolated 'cores' weighing at least 100 times the mass of the sun, research offers insights into how cosmic seeds can grow into massive stars.
Astrophysicists studied Snake nebula which is located about 11,700 light years from earth from Smithsonian's Submillimeter Array (SMA) telescope.
It was targeted because it shows the potential to form many massive stars - stars heavier than eight times our sun.
"High-mass stars form in villages. It is a family affair," said Qizhou Zhang of the Harvard-Smithsonian Center for Astrophysics (CfA) in Massachusetts.
"To learn how stars form, we have to catch them in their earliest phases, while they are still deeply embedded in clouds of gas and dust, and the SMA is an excellent telescope to do so," explained lead author Ke Wang of the European Southern Observatory (ESO).
The team studied two specific spots within the Snake nebula, designated P1 and P6.
Within those two regions, they detected a total of 23 cosmic 'seeds' - faintly glowing spots that will eventually birth one or a few stars.
The seeds generally weigh between 5 and 25 times the mass of the sun and each spans only a few thousand astronomical units (the average earth-sun distance).
The team was surprised to find that these nebular patches had fragmented into individual star seeds so early in the star formation process.
They detected bipolar outflows and other signs of active, ongoing star formation.
Eventually, the Snake nebula will dissolve and shine as a chain of several star clusters, said the study published in the Monthly Notices of the Royal Astronomical Society.
(Posted on 27-02-2014)
Information on States of India:
Andaman Nicobar | Andhra Pradesh | Arunachal Pradesh | Assam | Bihar | Chandigarh | Chhattisgarh | Dadar Nagar Haveli | Daman Diu | Delhi | Goa | Gujarat | Haryana | Himachal Pradesh | Jammu Kashmir | Jharkhand | Karnataka | Kerala | Lakshadweep | Madhya Pradesh | Maharashtra | Manipur | Meghalaya | Mizoram | Nagaland | Orissa | Pondicherry | Punjab | Rajasthan | Sikkim | Tamil Nadu | Tripura | Uttar Pradesh | Uttaranchal | West Bengal
INDIA REGIONAL MAPS:
Andhra Pradesh Travel Map | Bihar Travel Map | Goa Travel Map | Gujarat Travel Map | Haryana Travel Map | Himachal Pradesh Map | Karnataka Travel Map | Kerala Travel Map | Maharashtra Travel Map | Punjab Travel Map | Rajasthan Travel Map | Sikkim Travel Map | Tamil Nadu Travel Map | Uttar Pradesh Travel Map | West Bengal Travel Map |
KERALA TRAVEL MAPS:
TRAVEL MAPS OF INDIA:
INDIA CITY MAPS: