WISE IR excesses for stars within 75pc Virtual Observatory Resource

Authors
  1. Patel R.I.
  2. Metchev S.A.
  3. Heinze A.
  4. Published by
    CDS
Abstract

We present a sensitive search for WISE W3 (12{mu}m) and W4 (22{mu}m) excesses from warm optically thin dust around Hipparcos main sequence stars within 75pc from the Sun. We use contemporaneously measured photometry from WISE, remove sources of contamination, and derive and apply corrections to saturated fluxes to attain optimal sensitivity to >10{mu}m excesses. We use data from the WISE All-Sky Survey Catalog rather than the AllWISE release because we find that its saturated photometry is better behaved, allowing us to detect small excesses even around saturated stars in WISE. Our new discoveries increase by 45% the number of stars with warm dusty excesses and expand the number of known debris disks (with excess at any wavelength) within 75pc by 29%. We identify 220 Hipparcos debris disk host stars, 108 of which are new detections at any wavelength. We present the first measurement of a 12{mu}m and/or 22{mu}m excess for 10 stars with previously known cold (50-100K) disks. We also find five new stars with small but significant W3 excesses, adding to the small population of known exozodi, and we detect evidence for a W2 excess around HIP 96562 (F2V), indicative of tenuous hot (780K) dust. As a result of our WISE study, the number of debris disks with known 10-30{mu}m excesses within 75pc (379) has now surpassed the number of disks with known >30{mu}m excesses (289, with 171 in common), even if the latter have been found to have a higher occurrence rate in unbiased samples.

Keywords
  1. infrared-photometry
Bibliographic source Bibcode
2014ApJS..212...10P
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/212/10
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJS/212/10
Document Object Identifer DOI
doi:10.26093/cds/vizier.22120010

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/212/10
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/212/10
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/212/10
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/ApJS/212/10/catalog?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/212/10/catalog?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/212/10/catalog?

History

2014-07-03T06:54:14Z
Resource record created
2014-07-03T06:54:14Z
Created
2017-06-19T07:58:11Z
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