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Tibet's Ali: Asia's Atacama?
Quan-Zhi Ye, Meng Su, Hong Li +1
The Ngari (Ali) prefecture of Tibet, one of the highest areas in the world, has recently emerged as a promising site for future astronomical observation. Here we use 31 years of re…
Results from the Worldwide Coma Morphology Campaign for Comet ISON (C/2012 S1)
Nalin H. Samarasinha, 48 co-authors
We present the results of a global coma morphology campaign for comet C/2012 S1 (ISON), which was organized to involve both professional and amateur observers. In response to the c…
Bangs and Meteors from the Quiet Comet 15P/Finlay
Quan-Zhi Ye, Peter G. Brown, Charles Bell +3
Jupiter-family comet 15P/Finlay has been reportedly quiet in activity for over a century but has harbored two outbursts during its 2014/2015 perihelion passage. Here we present an…
Gone in a Blaze of Glory: the Demise of Comet C/2015 D1 (SOHO)
Man-To Hui, Quan-Zhi Ye, Matthew Knight +2
We present studies of C/2015 D1 (SOHO), the first sunskirting comet ever seen from ground stations over the past half century. The Solar and Heliospheric Observatory (SOHO) witness…
When Comets Get Old: A Synthesis of Comet and Meteor Observations of the Low Activity Comet 209P/LINEAR
Quan-Zhi Ye, Man-To Hui, Peter G. Brown +4
It is speculated that some weakly active comets may be transitional objects between active and dormant comets. These objects are at a unique stage of the evolution of cometary nucl…