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Title:
New β Lyrae and Algol Candidates from the Northern Sky Variability Survey
Authors:
Hoffman, D. I.; Harrison, T. E.; Coughlin, J. L.; McNamara, B. J.; Holtzman, J. A.; Taylor, G. E.; Vestrand, W. T.
Affiliation:
AA(Department of Astronomy, New Mexico State University, Box 30001/MSC45000, Las Cruces, NM 88003, USA ), AB(Department of Astronomy, New Mexico State University, Box 30001/MSC45000, Las Cruces, NM 88003, USA ), AC(Department of Astronomy, New Mexico State University, Box 30001/MSC45000, Las Cruces, NM 88003, USA ), AD(Department of Astronomy, New Mexico State University, Box 30001/MSC45000, Las Cruces, NM 88003, USA ), AE(Department of Astronomy, New Mexico State University, Box 30001/MSC45000, Las Cruces, NM 88003, USA ), AF(Department of Astronomy, New Mexico State University, Box 30001/MSC45000, Las Cruces, NM 88003, USA ), AG(Los Alamos National Laboratory, Los Alamos, NM, USA)
Publication:
The Astronomical Journal, Volume 136, Issue 3, pp. 1067-1078 (2008). (AJ Homepage)
Publication Date:
09/2008
Origin:
IOP
AJ Keywords:
binaries: eclipsing
DOI:
10.1088/0004-6256/136/3/1067
Bibliographic Code:
2008AJ....136.1067H

Abstract

We have classified 409 objects in the Northern Sky Variability Survey (NSVS) as new β Lyrae or Algol-type eclipsing binaries. These candidates have outside of eclipse magnitudes of ~10-13. Through automated Fourier analysis routines and some manual inspection, we list the period, eclipse depths, coordinates, an estimate of the time of primary eclipse, and the 2MASS colors for these candidates. This list of new β Lyrae type candidates greatly increases the number of known systems of this type. We have also identified 37 candidate low-mass, main-sequence pairs (M 1,2 < 1 M sun, T < 5500 K) in the NSVS database. If confirmed, these systems will greatly increase the number of such low-mass systems known as well as help constrain atmospheric models for these types of stars.
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