Supernova Refsdal and Galaxy Cluster MACS J1149.6+2223
About This Image
Caption
The powerful gravity of a galaxy embedded in a massive cluster of galaxies in this Hubble Space Telescope image is producing multiple images of a single distant supernova far behind it. Both the galaxy and the galaxy cluster are acting like a giant cosmic lens, bending and magnifying light from the supernova behind them, an effect called gravitational lensing.
The image shows the galaxy's location within a hefty cluster of galaxies called MACS J1149.6+2223, located more than 5 billion light-years away. In the enlarged inset view of the galaxy, the arrows point to the multiple copies of the exploding star, dubbed Supernova Refsdal, located 9.3 billion light-years from Earth. The images are arranged around the galaxy in a cross-shaped pattern called an Einstein Cross. The blue streaks wrapping around the galaxy are the stretched images of the supernova's host spiral galaxy, which has been distorted by the warping of space.
The four images were spotted on Nov. 11, 2014. This Hubble image combines data from three months of observations taken in visible light by the Advanced Camera for Surveys and in near-infrared light by the Wide Field Camera 3.
About The Object
- Object Name
- SN Refsdal, SN HFF14Ref (supernova), MACS J1149.6+2223 (cluster)
- Object Description
- Multiply Imaged, Gravitationally Lensed Supernova and Lensing Galaxy Cluster
- R.A. Position
- 11h 49m 35.08s
- Dec. Position
- 22° 24' 10.94"
- Constellation
- Leo
- Distance
- 9.3 billion light-years or 2.9 billion parsecs (supernova); 5 billion light-years or 1.5 billion parsecs (cluster)
About The Data
- Data Description
- This image is created from data from the following HST proposals: 13459 T. Treu (UCLA) et al. and the GLASS team, 13504 J. Lotz (STScI) et al. and the Frontier Fields team, 13790 S. Rodney (JHU) et al. and the FrontierSN team, and 14041 P. Kelly (UCLA) et al. and the Refsdal team. The science team includes: P. Kelly (UC Berkeley), S. Rodney (JHU), T. Treu (UCLA), R. Foley (University of Illinois at Urbana-Champaign), G. Brammer (STScI), K. Schmidt (UC Santa Barbara), A. Zitrin (Caltech), A. Sonnenfeld (UCLA), L.-G. Strolger (Western Kentucky University/STScI), O. Graur (New York University/American Museum of Natural History), A. Filippenko (UC Berkeley), S. Jha (Rutgers University), A. Riess (JHU/STScI), M. Bradac (UC Davis), B. Weiner (Steward Observatory/UA), D. Scolnic (University of Chicago), M. Malkan (UCLA), A. von der Linden (Dark Cosmology Centre, Copenhagen/KIPAC, Stanford), M. Trenti (University of Melbourne), J. Hjorth (Dark Cosmology Centre, Copenhagen), R. Gavazzi (Institut d'Astrophysique de Paris), A. Fontana (INAF-OAR), J. Merten (Caltech), C. McCully and T. Jones (UC Santa Barbara), M. Postman (STScI), A. Dressler (Carnegie Observatories), B. Patel (Rutgers University), S. B. Cenko (NASA/GSFC), M. Graham (UC Berkeley), and B. Tucker (UC Berkeley/Australia National University).
- Instrument
- HST>ACS/WFC and HST>WFC3/IR
- Exposure Dates
- November 3, 2014 - December 14, 2014
- Filters
- ACS/WFC: F606W and F814W WFC3/IR: F105W, F125W, F140W, and F160W
About The Image
- Color Info
- These images are composites of separate exposures acquired by the ACS and WFC3 instruments on the Hubble Space Telescope. Several filters were used to sample broad wavelength ranges. The color results from assigning different hues (colors) to each monochromatic (grayscale) image associated with an individual filter. In this case, the assigned colors are: Blue: F606W+F814W Green: F105W+F125W Red: F140W+F160W
- Compass and Scale Image
About The Object
- Object Name
- A name or catalog number that astronomers use to identify an astronomical object.
- Object Description
- The type of astronomical object.
- R.A. Position
- Right ascension – analogous to longitude – is one component of an object's position.
- Dec. Position
- Declination – analogous to latitude – is one component of an object's position.
- Constellation
- One of 88 recognized regions of the celestial sphere in which the object appears.
- Distance
- The physical distance from Earth to the astronomical object. Distances within our solar system are usually measured in Astronomical Units (AU). Distances between stars are usually measured in light-years. Interstellar distances can also be measured in parsecs.
About The Data
- Data Description
- Proposal: A description of the observations, their scientific justification, and the links to the data available in the science archive.
- Science Team: The astronomers who planned the observations and analyzed the data. "PI" refers to the Principal Investigator.
- Instrument
- The science instrument used to produce the data.
- Exposure Dates
- The date(s) that the telescope made its observations and the total exposure time.
- Filters
- The camera filters that were used in the science observations.
About The Image
- Color Info
- A brief description of the methods used to convert telescope data into the color image being presented.
- Compass and Scale Image
- An astronomical image with a scale that shows how large an object is on the sky, a compass that shows how the object is oriented on the sky, and the filters with which the image was made.