HR 8799 d Archives

Top: The full spectrum of VHS 1256 b using JWST’s NIRSpec IFU and MIRI MRS observation modes. Bandpasses are highlighted with different colors and error bar are displayed in grey. A single photometric point for MIRI MRS Channel 4A is shown because there is little to no signal in the MIRI MRS 4B, and 4C channels. Error bars are plotted in a light grey. Bottom: The wavelength overlap region between JWST’s NIRSpec IFU (black) and MIRI MRS (red) observation modes with errors plotted in light gray. The flux calibrated NIRSpec IFU spectra agree well with the MIRI MRS extracted spectra in the overlap region. -- astro-ph.EP

Astronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report

The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems II: A 1 to 20 Micron Spectrum of the Planetary-Mass Companion VHS 1256-1257 b

by Keith CowingJuly 23, 2024July 22, 2024

We present the highest fidelity spectrum to date of a planetary-mass object. VHS 1256 b is a <20 MJup widely separated (∼8 arcsec, a = 150 au), young, planetary-mass companion […]

HR 8799 d

The JWST Early Release Science Program for Direct Observations of Exoplanetary Systems II: A 1 to 20 Micron Spectrum of the Planetary-Mass Companion VHS 1256-1257 b

Material Cycling Across Earth’s Spheres And Triggers Of Cambrian Explosion: A Tectonic Perspective

Where Does Earth’s Nitrogen Go? Two Atoms Offer A Clue

Exotic Methanol Discovered In Planet-Building Zones

More Than One Thousand TESS Planets

First Detection Of Variable Water Clouds Outside Of Our Solar System