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Physical Sciences and Mathematics Commons

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Astrophysics and Astronomy

Selected Works

2013

Astronomy

Articles 1 - 3 of 3

Full-Text Articles in Physical Sciences and Mathematics

Discovery Of A Massive Young Stellar Object In G10.47+0.27 By Way Of Meta Analysis Of Previously Published Data., Hontas F. Farmer Jul 2013

Discovery Of A Massive Young Stellar Object In G10.47+0.27 By Way Of Meta Analysis Of Previously Published Data., Hontas F. Farmer

Hontas F Farmer

We report the finding of a previously unidentified candidate massive young stellar object at the precise coordinates right ascension 18 08 38.2 and declination -19 51 50 in the region G10.47+0.27. This object was found by correlation of previously published data. At these coordinates the following key tracers of massive star formation are in a compact area; 4.5 micrometer infrared, a Class II methanol maser, two ionized hydrogen regions and three water masers. We also present a physical model of the disk and outflow in this region based on the morphology and kinematics of the methanol and water masers. Perhaps …


Insights Into High Mass Star Formation From Methanol Maser Observations., Hontas Freeman Farmer Jun 2013

Insights Into High Mass Star Formation From Methanol Maser Observations., Hontas Freeman Farmer

Hontas F Farmer

We present high angular resolution data on Class I and Class II methanol masers, together with other tracers of star formation like H2O masers, ultracompact (UC) ionized hydrogen (H II) regions, and 4.5 μm infrared sources, taken from the literature. The aim is to study what these data tell us about the process of high mass star formation; in particular, whether disk-outflow systems are compatible with the morphology exhibited by Class I and Class II methanol masers. Stars form in the dense cores inside molecular clouds, and while the process of the formation of stars like our Sun is reasonably …


Mapping Light Pollution At Utah State University, Rachel K. Nydegger, Shane L. Larson Ph.D. Jan 2013

Mapping Light Pollution At Utah State University, Rachel K. Nydegger, Shane L. Larson Ph.D.

Rachel Nydegger Rozum

One of the beauties of modern civilization is seeing the city lighting at night. It provides a feeling of security and is indicative of the power and endeavors of humanity, but over-lighting is a form of pollution. Many outdoor light fixtures spread light in all directions, sending a majority of the light into the sky, away from where we want the light to be on the ground. This light spreading upward is not only wasted light, but it is wasted energy and money, destroys our ability to view the night sky, and has profound effects on nocturnal creatures. The direct …