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dc.contributor.authorServillat, M.
dc.contributor.authorWebb, N. A.
dc.contributor.authorLewis, F.
dc.contributor.authorKnigge, C.
dc.contributor.authorvan den Berg, M.
dc.contributor.authorDieball, A.
dc.contributor.authorGrindlay, J.
dc.date.accessioned2019-09-25T14:12:07Z
dc.date.issued2011
dc.identifier.citationServillat, M., N. A. Webb, F. Lewis, C. Knigge, M. van den Berg, A. Dieball, and J. Grindlay. 2011. “A DWARF NOVA IN THE GLOBULAR CLUSTER M13.” The Astrophysical Journal 733 (2): 106. https://doi.org/10.1088/0004-637x/733/2/106.
dc.identifier.issn0004-637X
dc.identifier.issn1538-4357
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:41399766*
dc.description.abstractDwarf novae (DNe) in globular clusters (GCs) seem to be rare with only 13 detections in the 157 known Galactic GCs. We report the identification of a new DN in M13, the 14th DN identified in a GC to date. Using the 2 m Faulkes Telescope North, we conducted a search for stars in M13 that show variability over a year (2005-2006) on timescales of days and months. This led to the detection of one DN showing several outbursts. A Chandra X-ray source is coincident with this DN and shows both a spectrum and variability consistent with that expected from a DN, thus supporting the identification. We searched for a counterpart in Hubble Space Telescope Advanced Camera for Surveys/Wide Field Camera archived images and found at least 11 candidates, of which we could characterize only the 7 brightest, including one with a 3 sigma H alpha excess and a faint blue star. The detection of one DN when more could have been expected likely indicates that our knowledge of the global Galactic population of cataclysmic variables is too limited. The proportion of DNe may be lower than found in catalogs, or they may have a much smaller mean duty cycle (similar to 1%) as proposed by some population synthesis models and recent observations in the field.
dc.language.isoen_US
dc.publisherAmerican Astronomical Society
dash.licenseLAA
dc.titleA DWARF NOVA IN THE GLOBULAR CLUSTER M13
dc.typeJournal Article
dc.description.versionVersion of Record
dc.relation.journalThe Astrophysical Journal
dash.depositing.authorGrindlay, Jonathan E.::60a4e0fa703c94a1ad5c71189cf4844e::600
dc.date.available2019-09-25T14:12:07Z
dash.workflow.comments1Science Serial ID 98677
dc.identifier.doi10.1088/0004-637X/733/2/106
dash.source.volume733;2
dash.source.page106


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