Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles Article Faculty Publications -Articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Tracing the outer disk of NGC300: An ultraviolet view Subject The topic of the resource Individual galaxies; spiral galaxies; star formation; XUV disk Description An account of the resource We present an ultra-violet (UV) study of the galaxy NGC300 using GALEX far-UV (FUV) and near-UV (NUV) observations. We studied the nature of UV emission in the galaxy and correlated it with optical, HI and mid-infrared (3.6 ?m) wavelengths. Our study identified extended features in the outer disk, with the UV disk extending up to a radius of 12 kpc (&gt; 2 R25). We estimated the FUV and NUV disk scale-length as 3.05 0.27 kpc and 2.66 0.20 kpc respectively. The scale-length in FUV is 2.3 times larger than that at 3.6 ?m, and we also find the disk to gradually become flatter from longer to shorter wavelengths. We performed a statistical source subtraction to eliminate the background contaminants and identified 261 unresolved UV sources between the radii 5.3 kpc and 10 kpc (1 ? 2 R25). The identified UV sources show an age range between 1300 Myr with a peak at 25 Myr and a mass range between 10 3M? to 10 6M?, estimated using Starburst99 models. The north-eastern spiral arm is found to be populated by young low mass sources suggesting that the star formation in this spiral arm is a recent phenomenon. The UV emission beyond the R25 radius has contribution from these low mass sources and is extended up to ? 2 R25 radius. We conclude that NGC300 has an extended UV disk, mainly populated by young low mass sources. The star formation rate is measured to be ?0.46M?/yr which is comparable to its near optical twin M33. 2019, Indian Academy of Sciences. Creator An entity primarily responsible for making the resource Mondal C.; Subramaniam A.; George K. Source A related resource from which the described resource is derived Journal of Astrophysics and Astronomy, Vol-40, No. 4 Publisher An entity responsible for making the resource available Springer Date A point or period of time associated with an event in the lifecycle of the resource 2019-01-01 Identifier An unambiguous reference to the resource within a given context <a href="https://doi.org/10.1007/s12036-019-9603-4" target="_blank" rel="noreferrer noopener">https://doi.org/10.1007/s12036-019-9603-4</a> <br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-85070820118&amp;doi=10.1007%2Fs12036-019-9603-4&amp;partnerID=40&amp;md5=a4069a4062153658d2226ff8df8f2b5d" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-85070820118&amp;doi=10.1007%2fs12036-019-9603-4&amp;partnerID=40&amp;md5=a4069a4062153658d2226ff8df8f2b5d</a> Rights Information about rights held in and over the resource Restricted Access Relation A related resource ISSN: 2506335 Format The file format, physical medium, or dimensions of the resource Online Language A language of the resource English Type The nature or genre of the resource Article Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Mondal C., Indian Institute of Astrophysics, 2nd Block, Koramangala, 560 034, Bengaluru, India, Pondicherry University, R.V. Nagar, Kalapet, 605 014, India; Subramaniam A., Indian Institute of Astrophysics, 2nd Block, Koramangala, 560 034, Bengaluru, India; George K., Department of Physics, Christ University, Bengaluru, India