Opt. follow-up of GW events with LCO Virtual Observatory Resource

Authors
  1. Arcavi I.
  2. McCully C.
  3. Hosseinzadeh G.
  4. Howell D.A.
  5. Vasylyev S.,Poznanski D.
  6. Zaltzman M.
  7. Maoz D.
  8. Singer L.
  9. Valenti S.
  10. Kasen D.,Barnes J.
  11. Piran T.
  12. Fong W.-F.
  13. Published by
    CDS
Abstract

We present an implementation of the Gehrels+ (2016ApJ...820..136G) galaxy-targeted strategy for gravitational-wave (GW) follow-up using the Las Cumbres Observatory global network of telescopes. We use the Galaxy List for the Advanced Detector Era (GLADE) galaxy catalog, which we show is complete (with respect to a Schechter function) out to ~300Mpc for galaxies brighter than the median Schechter function galaxy luminosity. We use a prioritization algorithm to select the galaxies with the highest chance of containing the counterpart given their luminosity, their position, and their distance relative to a GW localization, and in which we are most likely to detect a counterpart given its expected brightness compared to the limiting magnitude of our telescopes. This algorithm can be easily adapted to any expected transient parameters and telescopes. We implemented this strategy during the second Advanced Detector Observing Run (O2) and followed the black hole merger GW170814 and the neutron star merger GW170817. For the latter, we identified an optical kilonova/macronova counterpart thanks to our algorithm selecting the correct host galaxy fifth in its ranked list among the 182 galaxies we identified in the Laser Interferometer Gravitational-wave Observatory (LIGO)/Virgo localization.

Keywords
  1. Galaxies
  2. Optical astronomy
  3. Gravitational waves
  4. Apparent magnitude
Bibliographic source Bibcode
2017ApJ...848L..33A
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/848/L33
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/848/L33
Document Object Identifer DOI
doi:10.26093/cds/vizier.18489033

Access

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https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/848/L33
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/848/L33
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https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/848/L33/table6?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/848/L33/table6?
IVOA Cone Search SCS
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http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/848/L33/table3?
IVOA Cone Search SCS
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http://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/848/L33/table4?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/848/L33/table4?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/848/L33/table4?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/848/L33/table5?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/848/L33/table5?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/848/L33/table5?

History

2018-07-16T14:55:20Z
Resource record created
2018-07-16T14:55:20Z
Created
2018-09-26T07:16:53Z
Updated

Contact

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CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
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