[MS98] 36-09813 , the SIMBAD biblio

1998AJ....116..469M - Astron. J., 116, 469-481 (1998/July-0)

A search for distant galactic cepheids toward l = 60°.

METZGER M.R. and SCHECHTER P.L.

Abstract (from CDS):

We present results of a survey of a 6 deg2 region near l = 60°, b = 0° to search for distant Milky Way Cepheids. Few such Cepheids are known at distances ≳R0, limiting large-scale Milky Way disk models derived from Cepheid kinematics; this work was designed to find a sample of distant Cepheids for use in such models. The survey was conducted in the V and I bands over eight epochs, to a limiting I ≃ 18, with a total of almost 5 million photometric observations of over 1 million stars. We present a catalog of 578 high-amplitude variables discovered in this field. Cepheid candidates were selected from this catalog on the basis of variability and color change and observed again the following season. We confirm 10 of these candidates as Cepheids with periods from 4 to 8 days, most at distances greater than 3 kpc. Many of the Cepheids are heavily reddened by intervening dust, some with implied extinction A_V_ > 10 mag. With a future addition of infrared photometry and radial velocities, these stars alone can provide a constraint on R0 to 8% and in conjunction with other known Cepheids should provide good estimates of the global disk potential ellipticity.

Abstract Copyright:

Journal keyword(s): Stars: Variables: Cepheids - Cosmology: Distance Scale - Galaxy: Fundamental Parameters - Galaxy: Stellar Content - Galaxy: Structure - Surveys - Techniques: Photometric

VizieR on-line data: <Available at CDS (J/AJ/116/469): table1.dat table3.dat table4.dat>

Nomenclature: Tables 3, 4: [MS98] FF-NNNNN N=529.

CDS comments: The original paper has a duplication of the stars 22-24908 to 36-03868. The electronic table1.dat available at CDS was updated with to the author's supplied data.

Simbad objects: 533

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