File:Optical image of field around GRB991216 (2000-0596-more-2).jpg

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Optical image of field around GRB991216 This image is an optical view of the area around GRB991216. The optical transient believed to be the GRB afterglow is indicated with an arrow.

Summary

Description	English: Optical image of field around GRB991216 This image is an optical view of the area around GRB991216. The optical transient believed to be the GRB afterglow is indicated with an arrow.
Date	3 November 2000 (upload date)
Source	Optical image of field around GRB991216
Author	(Credit: S.Jha et al. (Harvard-Smithsonian Center for Astrophysics))

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	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:08, 15 June 2024		683 × 683 (339 KB)	OptimusPrimeBot (talk \| contribs)	#Spacemedia - Upload of https://chandra.si.edu/photo/2000/0596/0596_optical.jpg via Commons:Spacemedia

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Source	Chandra X-ray Observatory
Headline	Gamma Ray Burst observed on December 18, 1999.
Credit/Provider	NASA/CNR/L.Piro et al.
Author	Chandra X-ray Observatory Center
Image title	An international team of researchers used the Chandra X-ray Observatory to detect never-before-seen properties in the X-ray afterglow of a gamma-ray burst (GRB). GRBs are mysterious blasts of high-energy radiation, believed to be the most powerful explosions in the universe. Chandra's latest discovery of iron emission lines from the ejected material surrounding GRB991216 strengthens the case for a "hypernova" model for GRBs. In this theory, GRBs are caused by massive stars that collapse under their own weight, releasing gigantic amounts of energy.
Short title	Chandra Helps Put The Pieces Together On Gamma-Ray Bursts
Usage terms	http://chandra.harvard.edu/photo/image_use.html
Date and time of data generation	3 November 2000
Exif version	2.21
Image width	683 px
Image height	683 px
Color space	Uncalibrated
Width	683 px
Height	683 px
Pixel composition	RGB
Number of components	3
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Bits per component	8 8 8
Date metadata was last modified	09:13, 31 January 2011
Contact information	cxcpub@cfa.harvard.edu http://chandra.harvard.edu 60 Garden St. Cambridge, MA, 02138 USA 617.496.7941
Keywords	GRB 991216
IIM version	2

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3 November 2000

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