Media Information

 
 
 
Collection:
NASA Hubble Space Telescope Collection
Title:
The Carina Nebula: Star Birth in the Extreme
Object Name:
HUDF
General Information:
What is Hubble Heritage?

A monthly showcase of new and archival Hubble images. Go to the Heritage site.

In celebration of the 17th anniversary of the launch and deployment of NASA's Hubble Space Telescope, a team of astronomers is releasing one of the largest panoramic images ever taken with Hubble's cameras. READ: Junior version of this article Amazing Space Learn about this story in the Star Witness, a science newspaper available on our sister site, Amazing Space. [ http://amazing-spac…] It is a 50-light-year-wide view of the central region of the Carina Nebula where a maelstrom of star birth — and death — is taking place. This image is a mosaic of the Carina Nebula assembled from 48 frames taken with Hubble's Advanced Camera for Surveys. The Hubble images were taken in the light of neutral hydrogen during March and July 2005. Color information was added with data taken in December 2001 and March 2003 at the Cerro Tololo Inter-American Observatory in Chile. Red corresponds to sulfur, green to hydrogen, and blue to oxygen emission.
Acknowledgement:
*Credit:* NASA [ http://www.nasa.gov/], A. Straughn, S. Cohen, and R. Windhorst (Arizona State University), and the HUDF team (Space Telescope Science Institute [ http://www.stsci.ed…])
Fast Facts:
Technical facts about this news release:

About the Object Object Name: Carina Nebula, NGC 3372 Object Description: Emission Nebula in the Milky Way Galaxy Position (J2000): R.A. 10h 44m
Dec. -59° 53' Constellation: Carina Distance: Approximately 7,500 light-years (2,300 parsecs) Dimensions: This image is roughy 25 arcminutes (53 light-years or 16 parsecs) wide. About the Data Data Description: This color image combines many exposures from Hubble Space Telescope's Advanced Camera for Surveys (ACS)* and NOAO/AURA/NSF Cerro-Tololo Interamerican Observatory's (CTIO) 4m Blanco Telescope and MOSAIC2 camera. The ACS data was from the HST proposal 10241: N. Smith (University of California, Berkeley), J. Bally (University of Colorado at Boulder), N. Walborn (STScI), and J. Morse (NASA/GSFC). The CTIO observing team includes N. Smith (University of California, Berkeley), J. Bally (University of Colorado at Boulder), and J. Walawender (Institute for Astronomy/University of Hawaii).
*A small area of the Hubble ACS image that was saturated around the brightest star in the field, Eta Carinae, was replaced with images from previous shorter exposures from Hubble's Wide Field Planetary Camera 2. Instrument: HST/ACS
CTIO 4m Blanco Telescope and MOSAIC2 camera Exposure Date(s): HST data: March/July 2005
CTIO data: December 2001/March 2003 Filters: HST: ACS F658N (H-alpha [N II])
CTIO: ([O III] 501nm), (H-alpha [N II] 658nm) and ([S II] 672 673nm) About the Image Image Credit: NASA, ESA, N. Smith (University of California, Berkeley), and the Hubble Heritage Team (STScI/AURA) Release Date: April 24 , 2007 Color:

This image is a composite of many separate exposures made by the ACS instrument on the Hubble Space Telescope along with ground-based observations. In total, three filters were used to sample narrow wavelength emission. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are:

CTIO: ([O III] 501nm) blue CTIO: (H-alpha [N II] 658nm) green CTIO: ([S II] 672 673nm) red HST/ACS: F656N (H-alpha [N II]) luminosity*

*The higher resolution, black & white Hubble image and the lower resolution, color CTIO images were combined using a technique that takes luminosity (brightness) information from the black and white ACS image and color information from the composite CTIO image. This preserves all of the higher-resolution detail from the Hubble data while rendering a color image representing the physical processes in this active region of space.



Orientation: The Carina Nebula: Star Birth in the Extreme [ http://imgsrc.hubbl…]
note:
*Image Type:*: Astronomical
note:
*Description*:

These postage-stamp-size images reveal 36 young galaxies caught in the act of merging with other galaxies. These galaxies appear as they existed many billions of years ago. Astronomers have dubbed them "tadpole galaxies" because of their distinct knot-and-tail shapes, which suggest that they are engaging in galactic mergers.

The galaxies were captured in 2004 in the Hubble Space Telescope's Ultra Deep Field (HUDF) survey of thousands of distant galaxies. They are part of more than 165 tadpole galaxies in the HUDF studied recently by a team of astronomers. The team was looking for indications of black hole activity in these young galaxies. A characteristic signature of such activity is a fluctuation in brightness over time, an indication that a black hole is feasting on surrounding stars and gas. The flickering light does not come from the black hole itself but from the area immediately surrounding the black hole. Astronomers did not see brightness fluctuations in any of the tadpole galaxies they surveyed. They did, however, observe the fluctuations in 46 different faint galaxies in the HUDF. These galaxies existed millions of years after the tadpole galaxies. This result suggests that black holes did not begin eating when galaxies merged. Rather, it took several hundred million years for the gas and stars from the merger to arrive on the black hole's dinner plate and become visible as flickering light. This finding agrees with recent computer models which predicted that the feeding habits of black holes would become visible after galactic mergers.

Each postage-stamp image is roughly 84,000 light-years on a side, which is about the size of our Milky Way Galaxy today. The tadpole galaxies are shown in the middle of each image and are considerably smaller than today's giant galaxies. The image was taken by Hubble's Advanced Camera for Surveys.
note:
*Release Date*:April 24, 2007 09:00 AM (EDT)
note:
*Title*:The Carina Nebula: Star Birth in the Extreme
note:
*News Release Number:*: STScI-2007-16t
facet_what:
Advanced Camera for Surveys
facet_what:
Camera 2
facet_what:
Carina
facet_what:
Wide Field Planetary Camera 2
facet_what:
COMPASS
facet_what:
Aura
facet_what:
Hubble Space Telescope (HST)
facet_what:
Carina Nebula
facet_where:
Chile
facet_where:
Milky Way Galaxy
facet_where:
California
facet_where:
Hawaii
facet_where:
Arizona
facet_where:
Colorado
facet_where:
Goddard Space Flight Center (GSFC)
facet_where:
Washington, D.C.
facet_when:
2004
facet_when:
December 2001
facet_when:
March 2003
facet_when:
July 2005
facet_when:
April 24 , 2007
facet_when:
April 24, 2007
facet_when_year:
2005
facet_when_year:
2001
facet_when_year:
2004
facet_when_year:
2003
facet_when_year:
2007
UID:
SPD-HUBBLE-STScI-200 7-16t
original url:
Release Date:
April 24, 2007 09:00 AM (EDT)

The Carina Nebula: Star Birth in the Extreme