Young star-forming region NGC 2264 from Spitzer

Newborn stars, hidden behind thick dust, are revealed in this image of a section of the Christmas Tree Cluster from NASA's Spitzer Space Telescope, created in joint effort between Spitzer's Infrared Array Camera (IRAC) and Multiband Imaging Photometer (MI
All NASA Spitzer images of NGC 2264

The region has now been studied in detail by Sung & Bessell (2010), and 79 young brown dwarf candidates (YBDCs) are given (Sect. 5). Following my 2005 attempt to find the young brown dwarfs in NGC 2264, which Sung & Bessell discuss, I am delighted to see I found three of their 79. I think, zooming in on the Spitzer image you can pretty much see straightaway which ones are the cluster members (pinkish) and which are in the foreground (blue). Another Spitzer image, lacking the longest wavelength infrared light, is below.

Newborn stars, hidden behind thick dust, are revealed in this infrared image of a section of the Christmas Tree Cluster from NASA's Spitzer Space Telescope.

Identifying primordial substructure in NGC 2264

According to the discovery’s lead author Paula Teixeira, [then] a PhD student working at the Harvard-Smithsonian Center for Astrophysics, star-forming clouds like this one are dynamic and evolving structures. She suspects that at a certain stage of their evolution, chaotic internal motions in the clouds cause strands of dusty filaments, or fragments, to form. As the filaments cool, gas and dust inside the strands clump and fragment further, eventually creating a line of evenly spaced protostars. The average distance separating the baby stars is determined by the temperature and the density of the filaments.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: