Results 91 to 100 of about 2,784 (183)

A JWST NIRCam/MIRI View of the W51A High-mass Star-forming Region

open access: yesThe Astronomical Journal
We present observations of the W51A region, including the massive protoclusters W51-E and W51-IRS2, with JWST in 10 NIRCam and 5 MIRI filters. In this work, we highlight the most novel features apparent in these images and compare them with other ...
Taehwa Yoo   +12 more
doaj   +1 more source

The first billion years according to JWST

open access: yesNature Astronomy
review article written by the attendees of the 2024 ISSI breakthrough workshop "The first billion year of the Universe", submitted.
Angela Adamo   +48 more
openaire   +3 more sources

The Optical to Infrared 0.6–5.3 μm Dust Extinction Law of the Milky Way with JWST NIRSpec: Westerlund 2

open access: yesThe Astrophysical Journal Letters
The interstellar extinction law is important for interpreting observations and inferring the properties of interstellar dust grains. Based on the 993 prism/CLEAR spectra from the James Webb Space Telescope (JWST), we investigate the 0.6–5.3 μ m ...
Shu Wang, Xiaodian Chen
doaj   +1 more source

JWST Captures a Sudden Stellar Outburst and Inner Disk Wall Destruction

open access: yesThe Astrophysical Journal
We analyze JWST/MIRI observations of T Cha, a highly variable (Δ V ∼ 3–5 mag) accreting Sun-like star surrounded by a disk with a large (∼15 au) dust gap. We find that the JWST mid-IR spectrum is significantly different from the Spitzer spectrum obtained
Chengyan Xie   +8 more
doaj   +1 more source

Observations of the first galaxies in the Era of JWST

open access: yes
49 pages, 12 figures; Submitted to Encyclopedia of Astrophysics, November ...
Stark, Daniel P.   +3 more
openaire   +2 more sources

Analysis of Multi-epoch JWST Images of ∼300 Little Red Dots: Tentative Detection of Variability in a Minority of Sources

open access: yesThe Astrophysical Journal
The James Webb Space Telescope (JWST) has revealed a population of red and compact sources at z  ≳ 5 known as “little red dots” (LRDs) that are likely active galactic nuclei (AGNs).
Zijian Zhang   +3 more
doaj   +1 more source

A Multiwavelength Study of Comet C/2022 E3 (ZTF): Complementary ALMA and JWST Investigations of Water and Methanol in Cometary Comae

open access: yesThe Astronomical Journal
Long-period comets, which are often considered to be representative of material in the protoplanetary disk that formed the solar system, are ideal to investigate the question of chemical inheritance in astronomy. Determining the chemistry of comets, both
K. D. Foster   +9 more
doaj   +1 more source

The Type II SN 2025pht in NGC 1637: A Red Supergiant with Carbon-rich Circumstellar Dust as the First JWST Detection of a Supernova Progenitor Star

open access: yesThe Astrophysical Journal Letters
We present follow-up imaging and spectroscopy and pre-explosion imaging of SN 2025pht located in NGC 1637 at 12 Mpc. Our spectroscopy shows that SN 2025pht is a Type II supernova (SN) with broad lines of hydrogen and with minimal line-of-sight extinction
Charles D. Kilpatrick   +9 more
doaj   +1 more source

The JWST/PASSAGE Survey [PDF]

open access: yes
Bibliografija: str. 14-15.
Runnholm, Axel   +3 more
openaire  

Home - About - Disclaimer - Privacy