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dc.contributor.authorHolman, Matthew J.
dc.contributor.authorGilliland, Ronald L.
dc.contributor.authorNoyes, Robert W.
dc.contributor.authorSasselov, Dimitar D.
dc.contributor.authorWinn, Joshua Nathan
dc.contributor.authorBeky, B.
dc.contributor.authorBakos, Gaspar A.
dc.date.accessioned2014-09-05T14:55:20Z
dc.date.available2014-09-05T14:55:20Z
dc.date.issued2013-05
dc.date.submitted2013-02
dc.identifier.issn0004-6256
dc.identifier.issn1538-3881
dc.identifier.urihttp://hdl.handle.net/1721.1/89200
dc.description.abstractWe present Hubble Space Telescope (HST) Space Telescope Imaging Spectrograph observations of two occultations of the transiting exoplanet HAT-P-1b. By measuring the planet to star flux ratio near opposition, we constrain the geometric albedo of the planet, which is strongly linked to its atmospheric temperature gradient. An advantage of HAT-P-1 as a target is its binary companion ADS 16402 A, which provides an excellent photometric reference, simplifying the usual steps in removing instrumental artifacts from HST time-series photometry. We find that without this reference star, we would need to detrend the lightcurve with the time of the exposures as well as the first three powers of HST orbital phase, and this would introduce a strong bias in the results for the albedo. However, with this reference star, we only need to detrend the data with the time of the exposures to achieve the same per-point scatter, therefore we can avoid most of the bias associated with detrending. Our final result is a 2σ upper limit of 0.64 for the geometric albedo of HAT-P-1b between 577 and 947 nm.en_US
dc.description.sponsorshipUnited States. National Aeronautics and Space Administration (Origins Grant NNX09AB33G)en_US
dc.language.isoen_US
dc.publisherIOP Publishingen_US
dc.relation.isversionofhttp://dx.doi.org/10.1088/0004-6256/145/6/166en_US
dc.rightsCreative Commons Attribution-Noncommercial-Share Alikeen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/en_US
dc.sourcearXiven_US
dc.titleRELATIVE PHOTOMETRY OF HAT-P-1b OCCULTATIONSen_US
dc.typeArticleen_US
dc.identifier.citationBeky, Bence, Matthew J. Holman, Ronald L. Gilliland, Gaspar A. Bakos, Joshua N. Winn, Robert W. Noyes, and Dimitar D. Sasselov. “RELATIVE PHOTOMETRY OF HAT-P-1b OCCULTATIONS.” The Astronomical Journal 145, no. 6 (May 13, 2013): 166.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physicsen_US
dc.contributor.departmentMIT Kavli Institute for Astrophysics and Space Researchen_US
dc.contributor.mitauthorWinn, Joshua Nathanen_US
dc.relation.journalThe Astronomical Journalen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsBeky, Bence; Holman, Matthew J.; Gilliland, Ronald L.; Bakos, Gaspar A.; Winn, Joshua N.; Noyes, Robert W.; Sasselov, Dimitar D.en_US
dc.identifier.orcidhttps://orcid.org/0000-0002-4265-047X
mit.licenseOPEN_ACCESS_POLICYen_US
mit.metadata.statusComplete


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