The effects of differential rotation on the spectral energy distribution and line profiles of the rapidly rotating star alpha Oph

Show simple item record

dc.contributor.advisor Deupree, Robert G. (Robert Gaston), 1946-
dc.creator Castañeda, Diego
dc.date.accessioned 2013-02-26T19:44:10Z
dc.date.available 2013-02-26T19:44:10Z
dc.date.issued 2012
dc.identifier.other QB883 C37 2012
dc.identifier.uri http://library2.smu.ca/xmlui/handle/01/24836
dc.description vii, 66 leaves : ill. ; 29 cm.
dc.description Includes abstract.
dc.description Includes bibliographical references (leaves 59-66).
dc.description.abstract The spectrum of the rapidly rotating star [alpha] Oph was modeled to examine the effect differential rotation has on its observed SED. Rotating stellar structure models were generated using the code ROTORC and constrained by the star’s interferometrically inferred parameters. The integrator code CLIC was used to calculate the SED of each model with an NLTE atmosphere (generated by the PHOENIX code) as it would be viewed at the inclination of [alpha] Oph. Comparison of the resultant synthetic SEDs and observations of the star revealed little difference between the goodness of fits of models with different rotation profiles due to the star’s inclination. Higher quality observations are necessary to further constrain the physical parameters and angular momentum distribution of [alpha] Oph but other previously observed rapidly rotating stars are current candidates for study with this technique. en_CA
dc.language.iso en en_CA
dc.publisher Halifax, N.S. : Saint Mary's University
dc.subject.lcc QB883
dc.subject.lcsh Stars -- Spectra
dc.subject.lcsh Stars -- Rotation
dc.subject.lcsh Delta Scuti stars
dc.title The effects of differential rotation on the spectral energy distribution and line profiles of the rapidly rotating star alpha Oph en_CA
dc.type Text en_CA
thesis.degree.name Master of Science in Astronomy
thesis.degree.level Masters
thesis.degree.discipline Astronomy and Physics
thesis.degree.grantor Saint Mary's University (Halifax, N.S.)


Files in this item

 
 

This item appears in the following Collection(s)

Show simple item record