5 天之前 · JWST observations, when combined with HST data, promise to improve age estimates of star clusters in nearby spiral galaxies. However, feedback from young cluster stars pushes out the natal gas and dust, making cluster formation and evolution a challenge to model. Here, we use JWST + HST observations of the nearby spiral galaxy NGC 628 to produce spectral energy distribution (SED) templates of ...

2024年3月6日 · We investigate the impact of SED fitting methods, assumed star formation histories (SFH), dust laws, and priors on galaxy masses and the resultant GSMF.

The JWST Exposure Time Calculator (ETC) offers a series of spectral energy distributions (SEDs) that may be used when building a source. Templates include many flavors of stellar and extragalactic spectra, as well as novae, nebulae, planetary, and analytic spectral distributions.

2024年11月4日 · Recent James Webb Space Telescope (JWST) observations have revealed a surprisingly abundant population of faint, dusty active galactic nuclei at z ≈ 4–7. Together with the presence of...

2025年2月28日 · Using a total of 10 filters spanning NUV through NIR wavelengths,HST broadband plus Hα imaging combined with JWST near-infrared imaging, we model key physical parameters, including age, mass and reddening, of star clusters in 16 nearby spiral galaxies from the Physics at High Angular resolution in Nearby GalaxieS (PHANGS) sample.

2025年2月28日 · As part of our effort to improve our age-dating, we present a set of empirical HST+JWST SED templates for star clusters in the spiral galaxy NGC 628 for a range of ages. A key result is the finding that essentially all star clusters with strong PAH and IR continuum emission have ages of 5 My or younger.

2024年7月29日 · Spectroscopic observations from the James Webb Space Telescope (JWST)–Near-Infrared Spectrograph (NIRSpec) 9 have been recently carried out for three candidate galaxies at redshift z > 14,...

This repository provides a simple tutorial of the spatially resolved SED analysis with JWST and HST imaging data, similar to the analysis performed in Abdurro'uf et al. (2023).

2024年7月15日 · Their unique v-shape spectral feature observed through JWST/NIRCam challenges us to discern the relative contributions of the galaxy and AGN. We study a spectral energy distribution (SED) model for LRDs from rest-frame UV to infrared bands.

23 小时之前 · We show the SED flux measurements for both the Hassani et al. and Rodríguez et al. samples in ... This work is based on observations made with the NASA/ESA/CSA James Webb Space Telescope (program #2107) and the NASA/ESA Hubble Space Telescope (program #15654 & #13364). The data were obtained from the Mikulski Archive for Space Telescopes at ...