On the left is an image of the gem bug nebula (NGC 7027) captured by the Hubble Space Telescope in 2019 and released in 2020. Further analysis by the researchers produced an image of RGB on the right, showing extinction due to dust, such as the relative strength of two hydrogen emission lines as red; Emissions from sulfur, relative to hydrogen, as greenery; And Emissions Credit from Blue-Like Iron: STSCI, Alyssa Pagan
Images of nebulae of two iconic planets taken by Hubble Space Telescope They are releasing new information about how they develop their dramatic features. Researchers at the Rochester Institute of Technology and the Green Bank Observatory presented new findings about the Butterfly Nebula (NGC 6302) and the Jewel Bug Nebula (NGC 7027) at the 237th meeting of the American Astronomical Society on Friday, January 15, 2021.
Hubble’s Wide Field Camera 3 observed nebulae in 2019 and early 2020 using its full, puncturematic capabilities, and astronomers involved in the project are using images of the emission line from nearby ultraviolet to nearby infrared light to learn more about their properties. The study was a first-of-its-kind panchomatic imaging survey designed to understand binary-star-operated planetary nebula-shaped formation processes and test models.
Chester F. of RIT. “We’re dissecting them,” said Joel Kastner, a professor at the Carlson Center for Imaging Science and School of Physics and Astronomy. “We are able to see the effect of how the dying Central Star sheds and cuts the material extracted from it. We now see that ionized gas dominates the material emitted by the central star, where it is dominated by cold dust, and also how hot gas is being ionized, whether it is caused by the star’s UV or by its present collisions. To come. , Fast wind. ”
At the top is an image of the Butterfly Nebula (NGC 6302) captured by the Hubble Space Telescope in 2019 and released in 2020. Further analysis by the researchers produced an image of RGB at the bottom, showing extinction due to dust, such as the strength of two hydrogen emission lines as red as written by relatives; Emissions from nitrogen, relative to hydrogen, as greenery; And emission from blue-like iron credits: STSCI, APOD / J. Schmidt; J. Kastner (RIT) et al.
Kastner said an analysis of the new HST images of the butterfly nebula confirms that the nebula emerged about only 2,000 years ago – an eyebrow by astronomical standards – and established an S-shaped iron emission that helped give it “wings”. Is. The gas is even smaller. Surprisingly, they discovered that astronomers previously believed that they were located at the central star of the nebula, that the previously identified star was not actually associated with the nebula, and that it was much closer to Earth than the butterfly nebula. Kestner said he hopes to study the future with this James Webb Web Space Telescope Can help find the real dead star in the heart of the nebula.
The team’s ongoing analysis of the gem bug nebula is built on the baseline of 25 years of early Hubble imaging measurements. Paula Moraga Base, Ph.D. in Astrophysical Science and Technology. Decalb, Il. The student of is called a nebula, “it is significant because of the unusual part of its circular symmetry, axis, parallelism and point-symmetry (bipolar) structure.” “Despite taking refuge in a hot central star and exhibiting excitation excitation conditions, the nebula retains large masses of molecular gas and dust,” Moraga noted.
The RGB image on the right reveals the spatial differentiation of the atoms CO + (red) and HCO + (blue), indicators of UV and X-ray processes, respectively. A very deep optical image of [O III] The (green) ionized atomic structure and provides a place for radio molecular observations. Credit: STSCI, Alyssa Pagan; J. Bublitz (NRAO / GBO) et al.
Jesse Bablitz ’20 Ph.D. (Astrophysical Science and Technology) G), now a post-resection researcher at the Green Bank Observatory, has expanded the team’s analysis of NGC 7027 with radio images from the Northern Extended Millimeter Array (NOEMA) telescope, from which they draw ultraviolet rays. has done. X-rays continue to change the chemistry of the light nebula. Combined observations of telescopes on other wavelengths, such as Hubble, and NOEMA’s luminous atoms CO + and HCO +, show how different regions of NGC 7027 are affected by high-energy radiation from its center star.
“We’re very excited about these findings,” Bablitz said. “We hoped to find a design that clearly showed CO + and HCO + spatial coincidence or in completely specific regions, which we did. This is the first map of NGC 7027, or just another CO + map of any planetary nebula, atomic CO + and any astronomical source. “
Meeting: 237th Meeting of the American Astronomical Society
In addition to Kastner, Moraga and Bablitz, the research team involved in the work of HST imaging includes Rodolfo Montez Jr. ’10 Ph.D. (Astrophysical Science and Technology) from Harvard-Smithsonian CFA; To Bruce Balik And Washington Washington University; As well as Adam Frank and Eric Blackman from the University of Rochester. Bublitz’s international collaborators on NBC 7027’s radio molecular line imaging include Kastner, Montez Jr. and astrophysicists from Spain, France and Brazil.
