A general catalogue of extended objects in the Magellanic System
Eduardo Bica, Charles Bonatto, Carlos Dutra, Joao F.C. Santos Jr

TL;DR
This paper updates and expands the catalogues of extended objects in the Magellanic System, including new classifications and detailed spatial analyses, revealing tidal influences and structural profiles of these celestial objects.
Contribution
It provides an updated, comprehensive catalogue of over 9300 objects in the Magellanic System, including new HI shells, with detailed spatial distribution analysis and insights into their tidal and structural properties.
Findings
Objects respond to tidal effects from LMC, SMC, and Bridge.
Number-density profiles fit exponential and core/halo models.
Older star clusters follow an exponential disk distribution.
Abstract
We update the SMC, Bridge, and LMC catalogues of extended objects that were constructed by members of our group from 1995 to 2000. In addition to the rich subsequent literature for the previous classes, we now also include HI shells and supershells. A total of 9305 objects were cross-identified, while our previous catalogues amounted to 7900 entries, an increase of . We present the results in subcatalogues containing 1445 emission nebulae, 3740 star clusters, 3326 associations, and 794 HI shells and supershells. Angular and apparent size distributions of the extended objects are analysed. We conclude that the objects, in general, appear to respond to tidal effects arising from the LMC, SMC, and Bridge. Number-density profiles extracted along directions parallel and perpendicular to the LMC bar, can be described by two exponential-disks. A single exponential-disk fits the…
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