SIMBAD references

2012AJ....143..149S - Astron. J., 143, 149 (2012/June-0)

A near-infrared survey of the inner Galactic plane for Wolf-Rayet stars. II. Going fainter: 71 more new W-R stars.

SHARA M.M., FAHERTY J.K., ZUREK D., MOFFAT A.F.J., GERKE J., DOYON R., ARTIGAU E. and DRISSEN L.

Abstract (from CDS):

We are continuing a J, K and narrowband imaging survey of 300 deg2 of the plane of the Galaxy, searching for new Wolf-Rayet (W-R) stars. Our survey spans 150° in Galactic longitude and reaches 1° above and below the Galactic plane. The survey has a useful limiting magnitude of K = 15 over most of the observed Galactic plane, and K = 14 (due to severe crowding) within a few degrees of the Galactic center. Thousands of emission-line candidates have been detected. In spectrographic follow-ups of 146 relatively bright W-R star candidates, we have re-examined 11 previously known WC and WN stars and discovered 71 new W-R stars, 17 of type WN and 54 of type WC. Our latest image analysis pipeline now picks out W-R stars with a 57% success rate. Star subtype assignments have been confirmed with the K-band spectra and distances approximated using the method of spectroscopic parallax. Some of the new W-R stars are among the most distant known in our Galaxy. The distribution of these new W-R stars is beginning to trace the locations of massive stars along the distant spiral arms of the Milky Way.

Abstract Copyright:

Journal keyword(s): Galaxy: disk - Galaxy: stellar content - infrared: stars - stars: emission-line, Be - stars: Wolf-Rayet - surveys

VizieR on-line data: <Available at CDS (J/AJ/143/149): table1.dat table2.dat table3.dat table4.dat table5.dat table6.dat table7.dat table8.dat>

Nomenclature: Tables 1-8: [SFZ2012] FFFF-NNNAA N=12+71.

Simbad objects: 105

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