File:Two ultraluminous X-ray sources in core of Messier 82 (nustar141008a1).jpg

Size of this preview: 600 × 600 pixels. Other resolutions: 240 × 240 pixels | 480 × 480 pixels | 768 × 768 pixels | 1,200 × 1,200 pixels.

Original file ‎(1,200 × 1,200 pixels, file size: 131 KB, MIME type: image/jpeg)

This is a file from the Wikimedia Commons. Information from its description page there is shown below.
Commons is a freely licensed media file repository. You can help.

Summary

Description	English: This image shows the core of galaxy Messier 82 (M82), where two ultraluminous X-ray sources, or ULXs, reside (X-1 and X-2). ULXs are regions that shine intensely with X-rays. Astronomers previously believed that all ULXs were the result of actively feeding black holes; as the black holes pull matter onto them from companion stars, the matter heats up and blazes with X-rays. X-2 is the largest point of light in the pink field, while X-1 is the large point to the right of X-2 (see annotations on the image). NuSTAR has added a new twist to the mystery of ULXs by showing that one of the ULXs in M82, called M82 X-2, is not a black hole but a pulsar. The observatory's high-energy X-ray observations caught a telltale pulse of X-rays coming from the object. A pulsar is a leftover core of an exploded star that sends out rotating beams of high-energy radiation. Pulsars are not as massive as black holes, so researchers are confounded by the immense amount of radiation pouring out of this relatively puny, compact object. Meanwhile, other researchers, using data from NASA's Rossi X-ray Timing Explorer, recently found evidence that the other ULX in M82, called M82 X-1, is indeed a black hole. They think it might belong to a long-sought intermediate-mass class -- a missing link between smaller, stellar-mass black holes and the gargantuan ones that dominate the centers of most galaxies. Together, these results suggest that ULXs may be more diverse than once believed. The image is a combination of high-energy X-ray data taken by NuSTAR (pink) and lower-energy X-rays captured by NASA's Chandra X-ray Observatory (blue). Français : Cœur de la galaxie M82, où se retrouvent 2 sources X ultralumineuses (X-1 et X-2). X-2 est le point de lumière le plus lumineux de l'image, au centre, et serait un pulsar. X-1 est le point lumineux situé à droite de X-2 (voir les annotations sur l'image même) et serait possiblement un trou noir intermédiaire. L'image a été réalisée par la combinaison d'images prises par NuSTAR et Chandra.
Date	circa 2014 date QS:P,+2014-00-00T00:00:00Z/9,P1480,Q5727902
Source	http://www.nustar.caltech.edu/image/nustar141008a1
Author	NASA/JPL-Caltech/SAO High energy X-rays (pink): NuStar Low energy X-rays (blue): Chandra X-ray Observatory

This image or video was catalogued by Jet Propulsion Laboratory of the United States National Aeronautics and Space Administration (NASA) under Photo ID: PIA18844.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

Other languages:

العربية ∙ беларуская (тарашкевіца) ∙ български ∙ català ∙ čeština ∙ dansk ∙ Deutsch ∙ English ∙ español ∙ فارسی ∙ français ∙ galego ∙ magyar ∙ հայերեն ∙ Bahasa Indonesia ∙ italiano ∙ 日本語 ∙ македонски ∙ മലയാളം ∙ Nederlands ∙ polski ∙ português ∙ русский ∙ sicilianu ∙ slovenščina ∙ Türkçe ∙ українська ∙ 简体中文 ∙ 繁體中文 ∙ +/−

Licensing

	This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
	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."

Annotations

This image is annotated: View the annotations at Commons

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Thumbnail	Dimensions	User	Comment
current	02:30, 12 October 2014		1,200 × 1,200 (131 KB)	Huntster	{{Information \|Description={{en\|1=This image shows the core of galaxy Messier 82 (M82), where two ultraluminous X-ray sources, or ULXs, reside (X-1 and X-2). ULXs are regions that shine intensely with X-rays. Astronomers previously believed that all UL...

File usage

The following pages on the English Wikipedia use this file (pages on other projects are not listed):

M82 X-2

Global file usage

The following other wikis use this file:

Usage on de.wikipedia.org
- Messier 82
- M82 X-2
Usage on fa.wikipedia.org
- ام۸۲ ایکس-۱
Usage on fr.wikipedia.org
Usage on it.wikipedia.org
- M82 X-1
Usage on ko.wikipedia.org
- M82 X-1
- M82 X-2
Usage on nl.wikipedia.org
- M82 X-1
Usage on ru.wikipedia.org
- M82 X-2
Usage on uk.wikipedia.org
- M82 X-2
Usage on vi.wikipedia.org
- M82 X-2
Usage on www.wikidata.org
- Q2759979
- Q18216993

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Image title	This image shows the core of galaxy Messier 82 (M82), where two ultraluminous X-ray sources, or ULXs, reside (X-1 and X-2). ULXs are regions that shine intensely with X-rays. Astronomers previously believed that all ULXs were the result of actively feeding black holes; as the black holes pull matter onto them from companion stars, the matter heats up and blazes with X-rays.NuSTAR has added a new twist to the mystery of ULXs by showing that one of the ULXs in M82, called M82 X-2, is not a black hole but a pulsar. The observatory's high-energy X-ray observations caught a telltale pulse of X-rays coming from the object. A pulsar is a leftover core of an exploded star that sends out rotating beams of high-energy radiation. Pulsars are not as massive as black holes, so researchers are confounded by the immense amount of radiation pouring out of this relatively puny, compact object.Meanwhile, other researchers, using data from NASA's Rossi X-ray Timing Explorer, recently found evidence that the other ULX in M82, called M82 X-1, is indeed a black hole. They think it might belong to a long-sought intermediate-mass class -- a missing link between smaller, stellar-mass black holes and the gargantuan ones that dominate the centers of most galaxies. Together, these results suggest that ULXs may be more diverse than once believed.The image is a combination of high-energy X-ray data taken by NuSTAR (pink) and lower-energy X-rays captured by NASA's Chandra X-ray Observatory (blue).
Short title	Ultraluminous X-ray Sources in M82 Galaxy
Credit/Provider	NASA/JPL-Caltech/SAO
Headline	This image shows the core of galaxy Messier 82 (M82), where two ultraluminous X-ray sources, or ULXs, reside (X-1 and X-2). ULXs are regions that shine intensely with X-rays.
Source	NuSTAR: Nuclear Spectroscopic Telescope Array
Usage terms	http://www.jpl.nasa.gov/imagepolicy/
Date and time of data generation	8 October 2014
Contact information	http://www.nustar.caltech.edu Pasadena, CA,
Keywords	Cigar Galaxy Messier 82 M82 NGC 3034