Nainital-Cape Survey. IV. Virtual Observatory Resource

Authors
  1. Joshi S.
  2. Martinez P.
  3. Chowdhury S.
  4. Chakradhari N.K.
  5. Joshi Y.C.,van Heerden P.
  6. Medupe T.
  7. Kumar Y. B.
  8. Kuhn R.B.
  9. Published by
    CDS
Abstract

The Nainital-Cape Survey is a dedicated ongoing Survey programme to search for and study pulsational variability in chemically peculiar (CP) stars to understand their internal structure and evolution. The main aims of this Survey are to find new pulsating Ap and Am stars in the northern and southern hemisphere and to perform asteroseismic studies of these new pulsators. The Survey is conducted using high-speed photometry. The candidate stars were selected on the basis of having Stromgren photometric indices similar to those of known pulsating CP stars. Over the last decade a total of 337 candidate pulsating CP stars were observed for the Nainital-Cape Survey, making it one of the longest ground-based surveys for pulsation in CP stars in terms of time span and sample size. The previous papers of this series presented seven new pulsating variables and 229 null results. In this paper we present the light curves, frequency spectra and various astrophysical parameters of the 108 additional CP stars observed since the last reported results. We also tabulated the basic physical parameters of the known roAp stars. As a part of establishing the detection limits in the Nainital-Cape Survey, we investigated the scintillation noise level at the two observing sites used in this Survey, Sutherland and Nainital, by comparing the combined frequency spectra stars observed from each location. Our analysis shows that both the sites permit the detection of variations of the order of 0.6-milli-magnitude (mmag) in the frequency range 1-4mHz, Sutherland is on average marginally better.

Keywords
  1. surveys
  2. peculiar-variable-stars
  3. variable-stars
  4. visible-astronomy
  5. medium-band-photometry
Bibliographic source Bibcode
2016A&A...590A.116J
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/590/A116
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/590/A116
Document Object Identifer DOI
doi:10.26093/cds/vizier.35900116

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/590/A116
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/590/A116
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/590/A116
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/590/A116/table12?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/590/A116/table12?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/590/A116/table12?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/590/A116/table3?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/590/A116/table3?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/590/A116/table3?

History

2016-05-25T08:20:47Z
Resource record created
2016-05-25T08:20:47Z
Created
2019-05-08T15:44:09Z
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