M33 SNR candidates properties Virtual Observatory Resource

Authors
  1. Lee J.H.
  2. Lee M.G.
  3. Published by
    CDS
Abstract

Narrowband images covering strong emission lines are efficient for surveying supernova remnants (SNRs) in nearby galaxies. Using the narrowband images provided by the Local Group Galaxy Survey, we searched for SNRs in M33. Culling the objects with enhanced [S II]/H{alpha} and round morphology in the continuum-subtracted H{alpha} and [S II] images, we produced a list of 199 sources. Among them, 79 are previously unknown. Their progenitor and morphology types were classified. A majority of the sample (170 objects) are likely remnants of core-collapse supernovae (SNe), and 29 are remnants of Type Ia SNe. The cumulative size distribution of these objects is found to be similar to that of the M31 remnants derived in a similar way. We obtain a power-law slope, {alpha}=2.38+/-0.05. Thus, a majority of the sources are considered to be in the Sedov-Taylor phase, consistent with previous findings. The histogram of the emission-line ratio ([S II]/H{alpha}) of the remnants has two concentrations at [S II]/H{alpha} ~0.55 and ~0.8, as in M31. Interestingly, L_X_(and L_20 cm_) of the compact center-bright objects are correlated with their optical luminosity. The remnants with X-ray emission have brighter optical surface brightnesses and smaller diameters than those without X-ray emission.

Keywords
  1. galaxies
  2. supernova-remnants
  3. stellar-radii
  4. visible-astronomy
  5. h-alpha-photometry
Bibliographic source Bibcode
2014ApJ...793..134L
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/793/134
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/793/134
Document Object Identifer DOI
doi:10.26093/cds/vizier.17930134

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/793/134
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/793/134
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/793/134
IVOA Table Access TAP
https://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/ApJ/793/134/table3?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/793/134/table3?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/793/134/table3?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/793/134/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/793/134/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/793/134/table1?

History

2017-05-12T15:56:30Z
Resource record created
2017-05-12T15:56:30Z
Created
2017-09-19T10:34:40Z
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