Arco del amanecer (imagen de Nircam)

Arco del amanecer (imagen de Nircam)

Esta imagen del telescopio espacial James Webb de un clúster de galaxias masivo llamado WHL0137-08 contiene la galaxia más ampliamente magnificada conocida en los primeros miles de millones de años del universo: el arco del amanecer, y dentro de esa galaxia, la estrella más distante jamás detectada. href = "https://hubblesite.org/contents/news-releases/2022/news-2022-003"> Telescopio espacial Hubble . Las observaciones de seguimiento utilizando el NIRCAM de Webb (cámara de infrarrojo cercano) revela que la estrella es una estrella masiva de tipo B más del doble de caliente que nuestro sol, y aproximadamente un millón de veces más luminoso.

Earendel se coloca a lo largo de una arruga en el espacio-tiempo que le da extrema magnificación, lo que permite que emerge a la vista de su host Galaxy, que aparece como una gala roja. La estrella es detectable solo debido al poder combinado de la tecnología humana y la naturaleza a través de un efecto llamado lentes gravitacionales .

En esta imagen, El arco del amanecer aparece Justo debajo del pico de diferenciación en la posición de 5 en punto. Las galaxias blancas más borrosas en el centro de la imagen son parte del clúster de la galaxia unidas por la gravedad. Las diversas galaxias curvas y rojos son galaxias de fondo recogidas por el espejo sensible de Webb.

créditos

Imagen

nasa, ESA, CSA

Science

Dan Coe (STSCI/AURA para ESA, JHU), BRIAN WELHCH (NASFCC, NASFCC. Umd)

Procesamiento de imágenes

Zolt G. Levay

About The Object
Object Name WHL-J24.3324-8.477, Earendel
Object Description Galaxy cluster with gravitational lensing and distant star
R.A. Position 01:37:23.23
Dec. Position  -08:27:52.20
Constellation Cetus
Distance The star is approximately 12.9 billion light-years away. 
About The Data
Data Description This image was created with Webb data from proposal: (D. Coe)
Instrument NIRCam
Exposure Dates 30 July 2022, 01 Jan 2023
Filters F090W, F115W, F150W, F200W, F277W, F356W, F410M, F444W
About The Image
Color Info This image is a composite of separate exposures acquired by the James Webb Space Telescope using the NIRCam instrument. Several filters were used to sample specific 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: F090W + F115W + F150W, Cyan: F200W, Green: F277W, Yellow: F356W, Orange: F410M,  Red: F444W
Compass Image A black background is scattered with hundreds of small galaxies of different shapes, ranging in color from white to yellow to red. Some galaxies, mostly the redder galaxies, are distorted, appearing to be stretched out or mirror imaged. Just a little bit above the center, there is a bright source of light, a star, with 8 bright diffraction spikes extending out from it. Below the star are several noticeably fuzzy white galaxies that resemble cotton balls – these are part of a galaxy cluster. To the lower right of the star is a particularly long, red, thin line stretching from one o’clock to 7 o’clock. This is the Sunrise Arc.
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.
Dimensions The physical size of the object or the apparent angle it subtends on the sky.
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
Image Credit The primary individuals and institutions responsible for the content.
Publication Date The date and time the release content became public.
Color Info A brief description of the methods used to convert telescope data into the color image being presented.
Orientation The rotation of the image on the sky with respect to the north pole of the celestial sphere.

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