Banking X-ray Data For The Future
Archives, in their many forms, save information from today that people will want to access and study in the future. This is a critical function of all archives, but it is especially important when it comes to storing data from today's modern telescopes.
NASA's Chandra X-ray Observatory has collected data for over sixteen years on thousands of different objects throughout the Universe. Once the data is processed, all of the data goes into an archive and is available to the public.
To celebrate American Archive Month, we are releasing a collection of new images from the Chandra archive.
By combining data from different observation dates, new perspectives of cosmic objects can be created. With archives like those from Chandra and other major observatories, such vistas will be available for future exploration.
The objects in this year's archive release, from left to right, are:
Top row:
W44: Also known as G34.7-0.4, W44 is an expanding supernova remnant that is interacting with dense interstellar material that surrounds it. X-rays from Chandra (blue) show that hot gas fills the shell of the supernova remnant as it moves outward. Infrared observations from the Spitzer Space Telescope reveal the shell of the supernova remnant (green) as well as the molecular cloud (red) into which the supernova remnant is moving and the stars in the field of view. Image credit: X-ray: NASA/CXC/Univ. of Georgia/R.Shelton & NASA/CXC/GSFC/R.Petre; Infrared: NASA/JPL-Caltech
W44: Also known as G34.7-0.4, W44 is an expanding supernova remnant that is interacting with dense interstellar material that surrounds it. X-rays from Chandra (blue) show that hot gas fills the shell of the supernova remnant as it moves outward. Infrared observations from the Spitzer Space Telescope reveal the shell of the supernova remnant (green) as well as the molecular cloud (red) into which the supernova remnant is moving and the stars in the field of view. Image credit: X-ray: NASA/CXC/Univ. of Georgia/R.Shelton & NASA/CXC/GSFC/R.Petre; Infrared: NASA/JPL-Caltech
SN 1987A: First seen in 1987, this supernova (dubbed SN 1987A) was the brightest supernova and nearest one to Earth in the last century. In a supernova explosion, a massive star runs out of fuel then collapses onto their core, flinging the outer layers of the star into space. By combining X-ray data from Chandra (blue) with optical data from the Hubble Space Telescope (appearing orange and red), astronomers can observe the evolution of the expanding shell of hot gas generated by the explosion and watch as a shock wave from the blast heats gas that once surrounded the doomed star. The two bright stars near SN 1987A are not associated with the supernova. Image credit: X-ray: NASA/CXC/PUS/E.Helder et al; Optical: NASA/STScI
Kesteven 79: Like SN 1987A, this object, known as Kesteven 79, is the remnant of a supernova explosion, but one that went off thousands of years ago. When massive stars run out of fuel, their cores collapse, generating a shock wave that flings the outer layers of the star into space. An expanding shell of debris and the surviving dense central core are often heated to millions of degrees, and give off X-rays. In this image of Kesteven 79, X-rays detected by Chandra (red, green, and blue) have been combined with an optical image from the Digitized Sky Survey of the field of view that reveals the stars (appearing as white). Image credit: X-ray: NASA/CXC/SAO/F.Seward et al, Optical: DSS
Bottom row:
MS 0735.6+7421: The galaxy cluster MS 0735.6+7421 is home to one of the most powerful eruptions ever observed. X-rays detected by Chandra (blue) show the hot gas that comprises much of the mass of this enormous object. Within the Chandra data, holes, or cavities, can be seen. These cavities were created by an outburst from a supermassive black hole at the center of the cluster, which ejected the enormous jets detected in radio waves (pink) detected the Very Large Array. These data have been combined with optical data from Hubble of galaxies in the cluster and stars in the field of view (orange). Image credit: X-ray: NASA/CXC/Univ. of Waterloo/A.Vantyghem et al; Optical: NASA/STScI; Radio: NRAO/VLA
MS 0735.6+7421: The galaxy cluster MS 0735.6+7421 is home to one of the most powerful eruptions ever observed. X-rays detected by Chandra (blue) show the hot gas that comprises much of the mass of this enormous object. Within the Chandra data, holes, or cavities, can be seen. These cavities were created by an outburst from a supermassive black hole at the center of the cluster, which ejected the enormous jets detected in radio waves (pink) detected the Very Large Array. These data have been combined with optical data from Hubble of galaxies in the cluster and stars in the field of view (orange). Image credit: X-ray: NASA/CXC/Univ. of Waterloo/A.Vantyghem et al; Optical: NASA/STScI; Radio: NRAO/VLA
3C295: The vast cloud of 50-million-degree gas that pervades the galaxy cluster 3C295 is only visible with an X-ray telescope like Chandra. This composite image shows the superheated gas, detected by Chandra (pink), which has a mass equal to that of a thousand galaxies. Hubble's optical data (yellow) reveal some of the individual galaxies in the cluster. Galaxy clusters like 3C295 also contain large amounts of dark matter, which holds the hot gas and galaxies together. The total mass of the dark matter needed is typically five times as great as the gas and galaxies combined. Image credit: X-ray: NASA/CXC/Cambridge/S.Allen et al; Optical: NASA/STScI
Guitar Nebula: The pulsar B2224+65 is moving through space very rapidly. Because of its high speed, the pulsar is creating a bow shock in its wake. This structure is known as the Guitar Nebula and the likeness of the musical instrument can be seen in the optical data (blue) of this composite image taken by Hubble and the Palomar Observatory. X-ray data from Chandra (pink) reveal a long jet that is coincident with the location of the pulsar at the tip of the "guitar," but is not aligned with its direction of motion. Astronomers will continue to study this system to determine the nature of this X-ray jet. Image credit: X-ray: NASA/CXC/UMass/S.Johnson et al, Optical: NASA/STScI & Palomar Observatory 5-m Hale Telescope
NASA's Marshall Space Flight Center in Huntsville, Alabama, manages the Chandra program for NASA's Science Mission Directorate in Washington, DC. The Smithsonian Astrophysical Observatory in Cambridge, Massachusetts, controls Chandra's science and flight operations.
For more Chandra images, multimedia and related materials, visit:
Last Updated: Oct. 14, 2015
Editor: Lee Mohon
el dispensador anota en tu margen ► En la mitología griega, Euríale (en griego antiguo Εὐρυάλη, "la caracterizada por buenas acciones") es una de las tres gorgonas, junto con Medusa y Esteno. Representa la virtud de la universalidad.
Euríale es una criatura preolímpica y la mayor de las gorgonas, nació de la unión bien de Forcis y Ceto según unas versiones, bien de Tifón y Equidna según otras. Es inmortal igual que su siguiente hermana Esteno pero en cambio la más joven, Medusa, nació mortal y hermosa.
Tenía forma de una enorme mujer, en su cabeza en lugar de cabellos le crecían serpientes venenosas vivas, y, según otras versiones también de sus axilas. Poseía además garras de bronce, una boca enorme con colmillos de marfil, alas de oro, y cola de serpiente, si bien versiones más antiguas la muestran semejante a un centauro.
Al igual que sus hermanas, Euríale poseía sangre con virtudes curativas, pero sólo si era extraída del lado derecho, pues de lo contrario su sangre se convertía en un veneno letal e instantáneo.
Como diosa terrestre, Euríale protegía y controlaba varios santuarios y oráculos en las montañas, por ejemplo el Oráculo de Delfos, e incluso es quien inspira a las pitias opitonisas encantadoras de serpientes.
Aunque es una bestia que vive en las entrañas de la tierra, es la única gorgona con sentimientos "maternos". En varias obras se cuenta que, cuando Perseo decapita a Medusa, Euríale es quien la llora desconsoladamente. Euríale también es la madre de Destino, y la creadora del mundo del Caos. Según algunas versiones, Euríale mantiene relaciones amorosas con Poseidón, y de ellas resulta madre del caballo volador Pegaso, quien, en otros casos, se considera hijo de Poseidón y Medusa aunque ciertos autores argumentan que se trataba de otra Euríale: la hija del rey cretense Minos.
el dispensador dice:
todo suele estar conectado,
futuro... presente... y pasado...
nada sucede inoportuno,
porque lo escrito es un árbol,
donde las raíces no se ven,
pero seguro las habrás pisado,
sin haber atendido,
que te pedían que corrieras tus piés a un lado...
pero así es el ser humano,
cuando tiene la rama,
desconoce el árbol...
cuando tiene el fruto,
desprecia al que se le ha acercado...
cuando aparece el brote,
corta lo que le ha molestado...
y luego se dice perdido,
entre hijos y entenados,
que a pesar de haber recibido todo,
se considera negado...
no se te ocurra mentirme en la tarde,
ni tampoco en el ocaso,
el universo late en mi alma,
y además de verte,
puedo estar escuchando,
lo que dicen tus intenciones,
cuando el espejo las refleja de lado...
mucho sé del orden,
pero antes... más conozco al "caos".
DICIEMBRE 11, 2015.-
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