Light curve of HR Lyr over 1991-2012 Virtual Observatory Resource

Authors
  1. Honeycutt R.K.
  2. Shears J.
  3. Kafka S.
  4. Robertson J.W.
  5. Henden A.A.
  6. Published by
    CDS
Abstract

The 22 yr light curve of HR Lyr, acquired with a typical cadence of 2-6 days, is examined for periodic and quasi-periodic variations. No persistent periodicities are revealed. Rather, the light curve variations often take the form of nearly linear rises and falls having typical e-folding times of about 100 days. Occasional ~0.6mag outbursts are also seen, with properties similar to those of small outbursts found in some nova-like cataclysmic variables. When the photometry is formed into yearly averages, a decline of 0.012+/-0.005mag/yr is apparent, consistent with the fading of irradiation-induced Mdot following the nova. The equivalent width of H{alpha} is tabulated at three epochs over the interval 1986-2008 in order to compare with a recent result for DK Lac in which H{alpha} was found to be fading 50 yr after the nova. However, our results for such a fading in HR Lyr are inconclusive.

Keywords
  1. novae
  2. variable-stars
  3. cataclysmic-variable-stars
  4. photometry
Bibliographic source Bibcode
2014AJ....147..105H
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/147/105
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/147/105
Document Object Identifer DOI
doi:10.26093/cds/vizier.51470105

Access

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http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/147/105
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/147/105
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/147/105
IVOA Table Access TAP
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History

2014-09-15T08:50:37Z
Resource record created
2014-09-15T08:50:37Z
Created
2017-06-26T11:49:51Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr