This article needs additional citations for verification. (November 2019) (Learn how and when to remove this template message)
|H II region|
|Observation data: J2000.0  epoch|
|Right ascension||10h 24m 14.6s |
|Declination||−57° 46′ 58″ |
|Designations||RCW 49, GUM 29, NGC 3247|
RCW 49 is recognized as among the brightest and most massive HII regions.
The nebula RCW49, shown in infrared light in this image from the Spitzer Space Telescope, is a nursery for newborn stars. Using NASA's Spitzer Space Telescope, astronomers have found in RCW49 more than 300 newborn or 'protostars,' all with circumstellar disks of dust and gas. The discovery reveals that galaxies make new stars at a much more prolific rate than previously imagined. The stellar disks of dust and gas not only feed material onto the growing new stars, but can be the raw material for new planetary systems.
In 2004 an image by the Spitzer Space Telescope in late 2003, was released showing the nebula in infrared wavelengths. This included and image showing the infrared colors mapped to visible light colors : 3.6 microns (blue), 4.5 microns (green), 5.8 microns (orange) and 8 microns (red). It was noted as being almost 14 thousand light years from Earth, and the infrared light could detect the stars obscured by dust clouds. It was estimated at least 200 of the stars in the nebula have dust disks.
- SIMBAD, RCW 49 (accessed 4 April 2012)
- "Whtiney, et al - A GLIMPSEof StarFormationin the Giant H II Region RCW49" (PDF).
- Lang, Kenneth R. (2012-12-06). Astrophysical Data: Planets and Stars. Springer Science & Business Media. ISBN 9781468406405.
- "Star Formation in RCW 49". NASA Spitzer Space Telescope. Retrieved 2019-11-08.
- "An "Impossibly" Young Planet?". Sky & Telescope. 2004-06-14. Retrieved 2019-11-08.
- Sexton, Remington O.; Povich, Matthew S.; Smith, Nathan; Babler, Brian L.; Meade, Marilyn R.; Rudolph, Alexander L. (2015-01-01). "Extended Red Objects and Stellar Wind Bow Shocks in the Carina Nebula". Monthly Notices of the Royal Astronomical Society. 446 (1): 1047–1059. arXiv:1410.3518. Bibcode:2015MNRAS.446.1047S. doi:10.1093/mnras/stu2143. ISSN 1365-2966.
- Media related to RCW 49 at Wikimedia Commons
- RCW 49 picture and information
- NASA Astronomy Picture of the Day: Cosmic Construction Zone RCW 49 (3 June 2004)
- Devitt, Terry (May 27, 2004). "Milky Way churning out new stars at a furious pace".
- Constellation Guide Westerlund 2 and Gum 29
|This nebula-related article is a stub. You can help Wikipedia by expanding it.|