90568 (2004 GV9) Archives

Optical reflectance spectra of 2004 GV9. Panel A: Here we compare our new GMOS reflectance spectra of 2004 GV9 both to each other and to coarse spectra derived from published single-epoch photometry (Rabinowitz et al. 2008; DeMeo et al. 2009; Fraser et al. 2015; Tegler et al. 2016). Hollow points in the GMOS spectra are either affected by incomplete background subtraction, telluric band residuals, proximity to the GMOS chip gaps, or a combination of these effects. All datasets are scaled to unit reflectance at 0.625 µm. We present all spectra calibrated with HD 124523 overlaid for direct comparison, and also offset for clarity. All offset spectra are offset vertically in increments of +0.2. Panel B: Here we show our 2004 GV9 spectra following division by a line fitted to them across their full wavelength coverage. Spectra from each epoch are offset vertically for clarity in increments of +0.1. Only spectra calibrated with HD 124523 are shown. Points affected by residuals of telluric absorption or imperfect background subtraction have been omitted. -- astro-ph.EP

Astrochemistry, Astrogeology, Astronomy & Telescopes, Comets and Asteroids, Imaging & Spectroscopy, Meteorites & Asteroids, Status Report

Hunting for Hydrated Minerals on Trans-Neptunian Objects

by Keith CowingDecember 20, 2023December 20, 2023

We present new optical reflectance spectra of three potentially silicate-rich Trans-Neptunian Objects (TNOs). These spectra were obtained with the aim of confirming past hints and detections of 0.7 micron absorption […]

90568 (2004 GV9)

Hunting for Hydrated Minerals on Trans-Neptunian Objects

Planetesimal Formation Across the Stellar Mass Spectrum and its Influence on Exoplanet-Inherited Volatile Budgets

Astronaut Training For Underground Science Expeditions

Achieving Efficient Broadband Spatial Filtering For LIFE: Status And Plan

A Comprehensive Study Of Comet 67P/Churyumov-Gerasimenko In The 2021/2022 Apparition. II. Colorimetry, Polarimetry, Modeling

Mars Express And Psyche Same Day Imagery of Mars