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Principal Component Analysis on Chemical Abundances Spaces
Yuan-Sen Ting, Kenneth C. Freeman, Chiaki Kobayashi +2
In preparation for the HERMES chemical tagging survey of about a million Galactic FGK stars, we estimate the number of independent dimensions of the space defined by the stellar ch…
Galaxy Zoo: dust lane early-type galaxies are tracers of recent, gas-rich minor mergers
Stanislav S. Shabala, Yuan-Sen Ting, Sugata Kaviraj +7
We present the second of two papers concerning the origin and evolution of local early-type galaxies exhibiting dust features. We use optical and radio data to examine the nature o…
Galaxy Zoo: dust and molecular gas in early-type galaxies with prominent dust lanes
Sugata Kaviraj, Yuan-Sen Ting, Martin Bureau +9
We study dust and associated molecular gas in 352 nearby early-type galaxies (ETGs) with prominent dust lanes. 65% of these `dusty ETGs' (D-ETGs) are morphologically disturbed, sug…