Examine las líneas rectas y iluminadas que perforan los anillos de gas y polvo alrededor de los bordes de la nebulosa del anillo sur en la imagen del telescopio espacial Webb. Estos "radios" parecen emanar de una o ambas estrellas centrales, marcando donde la luz se produce a través de agujeros en la nebulosa. Los agujeros son evidencia de dónde la estrella más tenue que creó esta escena disparó material, creando vías abiertas para que la luz fluya.
Algunas de las eyecciones de la estrella siguieron líneas delgadas y rectas (segunda caja) a través del gas y el polvo. Otras eyecciones (primera caja) se ven dobladas, curvas y más gruesas. ¿Por qué? Un equipo de investigadores, dirigido por Orsola de Marco de la Universidad de Macquarie en Sydney, Australia, modeló cómo podrían haberse formado estas estructuras complejas. Los estudios de las nebulosas planetarias han demostrado que incluso cuando las estrellas moribundas expulsan su gas y polvo en todos los ángulos simultáneamente, el gas de salida puede no permanecer simétrico por mucho tiempo. En la Nebula del Ring Southern, el equipo proyecta que las líneas rectas pueden haber sido disparadas cientos de años antes y a mayores velocidades que las que parecen más gruesas y curvilíneas. Es posible que el segundo conjunto sea una mezcla de material que se desaceleró, creando formas menos lineales.
comparando cuidadosamente la apariencia y el tiempo de estas expulsiones en los datos y simulaciones, De Marco y su equipo proponen que esta es más evidencia de la presencia de una estrella con una órbita ligeramente ondera que "agitó las botas de las eyecciones. La estrella de atenuación que creó la nebulosa planetaria aparece como una tenue estrella roja al lado de la estrella azul central.
créditos
Science
nasa, esa, csA, stsci, orsola de marco (Macquarie University)
Image Processing
Joseph DepashaLe (STSCI) (STSCI)
| About The Object | |
|---|---|
| Object Name | Southern Ring Nebula, NGC 3132, Eight-Burst Nebula |
| Object Description | Planetary Nebula |
| R.A. Position | 10:06:58.54 |
| Dec. Position | -40:26:00 |
| Constellation | Vela |
| Distance | 2,000 light-years (590 parsecs) |
| Dimensions | Image is about 2.4 arcmin across (1.4 light-years) |
| About The Data | |
| Data Description | This image was created with Webb data from proposal . It is part of Webb Early Release Observations. The Early Release Observations and associated materials were developed, executed, and compiled by the ERO production team: Jaclyn Barrientes, Claire Blome, Hannah Braun, Matthew Brown, Margaret Carruthers, Dan Coe, Joseph DePasquale, Nestor Espinoza, Macarena Garcia Marin, Karl Gordon, Alaina Henry, Leah Hustak, Andi James, Ann Jenkins, Anton Koekemoer, Stephanie LaMassa, David Law, Alexandra Lockwood, Amaya Moro-Martin, Susan Mullally, Alyssa Pagan, Dani Player, Klaus Pontoppidan, Charles Proffitt, Christine Pulliam, Leah Ramsay, Swara Ravindranath, Neill Reid, Massimo Robberto, Elena Sabbi, Leonardo Ubeda. The EROs were also made possible by the foundational efforts and support from the JWST instruments, STScI planning and scheduling, Data Management teams, and Office of Public Outreach. |
| Instrument | JWST > NIRCam and MIRI |
| Exposure Dates | 3 June 2022 |
| Filters | NIRCam > F212N, F470N; MIRI > F770W |
| About The Image | |
| Color Info | These images are a composite of separate exposures acquired by the James Webb Space Telescope using the NIRCam and MIRI instruments. Several filters were used to sample narrow and 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: Red: F770W, Green: F470N, Blue: F212N |
| Compass 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. |
| Dimensions | The physical size of the object or the apparent angle it subtends on the sky. |
| About The Data | |
| Data Description |
|
| 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. |
