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Full-Text Articles in Physics
Constraining The Parameters Of Six Known Transiting Exoplanets, Mackenzie Lee Jones
Constraining The Parameters Of Six Known Transiting Exoplanets, Mackenzie Lee Jones
Undergraduate Honors Thesis Collection
We present two new transits of GJ~1214b, five of TrES-lb, two of XO~2b, and one each of TrES~3b)WASP-16b and WASP- 36b. These observations were made with multiple observatories including IRTF-MORIS, Butler University's Holcomb Observatory, SARA-KPNO, and SARA-eTIO. Due to poor conditions and a lack of good comparison stars within the field of view, the parameter values for the radius ratio, inclination, and orbital distance, found for GJ-1214b are not reliable. The timing values, while still suspect, suggest consistency with the current ephemeris. After further analysis, the radius ratio we found for TrES-1b in Sloan r' is 0.0.13501±0.0001l, which differs by …
The Effect Of Tidal Disruptions On Giant Stars In The Galactic Center, Brian B. Geiss
The Effect Of Tidal Disruptions On Giant Stars In The Galactic Center, Brian B. Geiss
Undergraduate Honors Thesis Collection
Recent observational data suggest the depletion of late-type giant stars in the inner most region of the Galactive Nucleus. Using dynamically evolving Fokker-Planck models of the Galactic Nucleus, we have followed in detail the stellar distribution as it evolves through the postmain-sequence phases. Of particular interest was the effect of stellar collisions and tidal disruptions by the central massive black hole on post main sequence stars as they expand in size. B y modeling tidal disruptions and stellar collisions, we have found that there should be a significant depletion of the giant stars in the innermost regions of the nucleus. …