3 papers
astro-ph.EP2026
The Highly Unusual Behavior and Chemical Composition of Interstellar Comet 2I/Borisov
Allison N. Bair, David G. Schleicher, Theodore Kareta +2
We report on imaging, spectroscopy, and narrowband photometry of interstellar comet 2I/Borisov obtained at Lowell Observatory from 2019 September 13 to December 16. We measured che…
astro-ph.EP2025
Comprehensive Analyses of the Strongly Carbon-chain Depleted Comets in Lowell Observatory's Narrowband Photometry Database
Allison N. Bair, David G. Schleicher
We present measurements, analyses and results for the seventeen strongly carbon-chain depleted comets in Lowell Observatory's narrowband photometry database. The majority of comets…
astro-ph.EP2024
The Extreme Activity in Comet Hale-Bopp (C/1995 O1): Investigations of Extensive, Narrowband Photoelectric Photometry
David G. Schleicher, Peter V. Birch, Tony L. Farnham +1
Conventional narrowband photoelectric photometry of Comet Hale-Bopp (1995 O1) was obtained on 99 nights from mid-1995 to early-2000, yielding gas and dust production rates over an…