Anchoring the distance scale via X-ray/infrared data for Cepheid clusters: SU Cas

Show simple item record

dc.creator Gallo, Luigi C.
dc.creator Turner, David Gerald, 1945-
dc.creator Majaess, Daniel J.
dc.creator Lane, D. J.
dc.creator Gieren, W.
dc.creator Bonatto, C.
dc.creator Balam, D.
dc.creator Berdnikov, L.
dc.date.accessioned 2015-04-07T14:46:53Z
dc.date.available 2015-04-07T14:46:53Z
dc.date.issued 2012-07-10
dc.identifier.issn 0004-637X
dc.identifier.uri http://library2.smu.ca/xmlui/handle/01/26028
dc.description Publisher's version/PDF en_CA
dc.description.abstract New X-ray (XMM-Newton) and JHK[subscript s] (Observatoire du Mont-Megantic) observations for members of the star cluster Alessi 95, which Turner et al. discovered hosts the classical Cepheid SU Cas, were used in tandem with UCAC3 (proper motion) and Two Micron All Sky Survey observations to determine precise cluster parameters: E(J −H) = 0.08 [plus or minus] 0.02 and d = 405 [plus or minus] 15 pc. The ensuing consensus among cluster, pulsation, and trigonometric distances (d = 414 [plus or minus] 5([sigma][subscript x-bar]) [plus or minus] 10([sigma]) pc) places SU Cas in a select group of nearby fundamental Cepheid calibrators ([delta] Cep, [zeta] Gem). High-resolution X-ray observations may be employed to expand that sample as the data proved pertinent for identifying numerous stars associated with SU Cas. Acquiring X-ray observations of additional fields may foster efforts to refine Cepheid calibrations used to constrain H[subscript 0]. en_CA
dc.language.iso en en_CA
dc.publisher American Astronomical Society en_CA
dc.publisher IOP Publishing
dc.relation.uri http://dx.doi.org/10.1088/0004-637X/753/2/144
dc.rights Article is made available in accordance with the publisher’s policy and is subject to copyright law. Please refer to the publisher’s site. Any re-use of this article is to be in accordance with the publisher’s copyright policy. This posting is in no way granting any permission for re-use to the reader/user.
dc.subject.lcsh HR diagrams
dc.subject.lcsh Stars -- Open clusters
dc.subject.lcsh Cepheids
dc.subject.lcsh Stars -- Observations
dc.subject.lcsh Infrared astronomy
dc.subject.lcsh X-ray astronomy
dc.title Anchoring the distance scale via X-ray/infrared data for Cepheid clusters: SU Cas en_CA
dc.type Text en_CA
dcterms.bibliographicCitation Astrophysical Journal 753(2), 144. (2012) en_CA


Files in this item


 

Copyright statement:

 
Article is made available in accordance with the publisher’s policy and is subject to copyright law. Please refer to the publisher’s site. Any re-use of this article is to be in accordance with the publisher’s copyright policy. This posting is in no way granting any permission for re-use to the reader/user.
 
Published Version: http://dx.doi.org/10.1088/0004-637X/753/2/144
 
 

This item appears in the following Collection(s)

Show simple item record