Show simple item record

dc.contributor.advisorTanner, Angelleen_US
dc.contributor.authorClarke, Cameronen_US
dc.date.accessioned2016-08-26T18:15:22Zen_US
dc.date.available2016-08-26T18:15:22Zen_US
dc.date.copyright2015en_US
dc.date.issued2015-04-14en_US
dc.date.submitted2015-04-14en_US
dc.identifier.urihttp://hdl.handle.net/11668/14155en_US
dc.description.abstractExoplanet detections are becoming more and more frequent as our ability to detect transits and Doppler shifted stellar spectra improves. Here, we report on eight observing nights at the SMARTS 0.9m telescope in Chile at the Cerro Tololo Inter-American Observatory (CTIO), covering 13 nearby stars in the range of 11th to 14th visual magnitude. We used the defocus method to spread the point spread function (PSF) of the star across a larger portion of the CCD to achieve longer exposure times yielding a higher signal to noise ratio and a higher amount of data every night as less time was spent on CCD read-out and data storage over time. Spreading the PSF and increasing exposure time has drawbacks, as it inevitably increases the sky background in each image and makes it difficult to extricate the target star's PSF from a crowded background of neighboring stars. We explore the short term, high time-resolution ability of the 0.9m CTIO telescope to produce stable photometry of M-dwarfs. The results show that the 0.9m telescope can be used to produce stable photometry to near 2 to 3 milli-magnitudes if user error does not introduce artificial noise. We can use this telescope to compare the noise of stars to the predictions of starspot models. There is also value in searching for a correlation between photometric and radial velocity noise in stars that could mask or produce false positive exoplanet detections.en_US
dc.languageen_USen_US
dc.language.isoen_USen_US
dc.publisherMississippi State Universityen_US
dc.publisherJudy and Bobby Shackouls Honors Collegeen_US
dc.relation.ispartofseriesJudy and Bobby Shackouls Honors College Undergraduate Senior Thesesen_US
dc.subject.lcshUniversities and colleges--Honors coursesen_US
dc.subject.otherexoplanetsen_US
dc.subject.othertelescopesen_US
dc.subject.otherphotometryen_US
dc.titleDetermining the photometric capabilities of the CTIO 0.9-m telescopeen_US
dc.typeHonors Thesisen_US
dc.publisher.departmentDepartment of Physics and Astronomyen_US
dc.publisher.collegeJudy and Bobby Shackouls Honors Collegeen_US
dc.publisher.collegeCollege of Arts and Sciencesen_US
dc.publisher.officeHonors Office of Undergraduate Researchen_US
dc.contributor.issuingbodyMississippi State Universityen_US
dc.source.institutionMississippi State Universityen_US
dc.subject.degreeBachelor of Scienceen_US
dc.subject.majorPhysicsen_US
dc.contributor.committeePierce, Donnaen_US
dc.contributor.committeeOppenheimer, Seth F.en_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

  • Honors Theses
    Theses written by students of the Judy and Bobby Shackouls Honors College.

Show simple item record